MK4 1.8T Big Turbo hits the dyno

A little break down of this big turbo MK4 1.8T. With some pulls on the dyno to see how much power it can make.
Eurodyne Maestro 7 Tuning Suite
comotorsports....
IE Drop in Rods
comotorsports....
Supertech Exhaust Valves
CTS 1.8t Turbo Kit (with Precision 6262 .63
comotorsports....
CTS Front Mount Intercooler Kit
comotorsports....
1000cc Injectors
comotorsports....
Deatchwerks in-tank fuel pump
Vibrant Vented Catch Can
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Fluidampr
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ClutchMaster FX400
Innovate Boost Controller/AF Gauge
CO Motorsports "Fast Coast" Hoodie
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Camera Gear
Sony Alpha ZV-E10
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Rode Compact On-Camera Microphone
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67'' Phone Tripod Stand & Selfie
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Audio Video Capture Cards Cam Link Card HDMI
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25ft HDMI to Micro HDMI
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Camera Tripod, Mini Flexible Tripod Stand
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Tools
Bolt Extractor Set, Easy-Out Screw Extraction
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3M Safety Glasses
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TITAN 16138 9-Piece Low Profile Impact Triple Square Bit Socket Set
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Digital Timing Light
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Swivel Magnetic Spark Plug Socket
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GEARWRENCH 20 Pc. Screwdriver Set
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Milling
Carbide End Mill 2 Flute Square End Standard 1/4" Diameter x 3/4"
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Accusize Industrial Tools 1/8'' Thickness 10 Pairs Precision Parallel Sets
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Precision 123 Blocks, Two Pack
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[@teemill450]

New to the channel. You & your crew are legit VW gearhead 1000% Best VW tuning i found on the KZbin. Sharing all the vids 👍👊

[@COMotorsports]

We appreciate the feedback, and thanks for the love and sharing. We're trying.

[@ngeniousjames866]

Love the video. Got me excited for my 1.8t Big turbo(GTX3071r) build I’m doing on my channel😁

[@COMotorsports]

Thanks man, good luck, and great turbo.

[@andre-77]

I’ve the same configuration but on a 225hp version (APX)....that generation of engine was amazing, strong, powerful and funny to drive! Great job 👍🏼👍🏼

[@COMotorsports]

Although stronger it was only slightly stronger from what I've seen. Is yours is a 6262 also?

[@andre-77]

CO Motorsports mine it’s a 06A block 💪🏼

[@COMotorsports]

@@andre-77 Yes same with the car in this video. All 1.8T's that are internally waterpump are 06a.

[@coddymaveric5434]

Muy buenos videos amigo espero sigas con estos contenidos excelentes soy un seguidor más de tus vídeos saludos de México

[@Billboi805]

Dyno results at 7:54

[@southeastbanditracingsebr1404]

How much do you charge to build a big turbo Jetta like that one

[@jerryfullen5043]

Big money!! I’m building one at the moment I’m prob 10 grand deep and still going

[@elliottness6810]

I have a 1995 mk3 vw golf 2 liters. I need to increase my power but don't know where to start. The car is obd1 hence, I was thinking about changing the wire harness and ecu to a vw mk4 ecu where it can be turned, then I was considering to boost it with a ko4 turbocharger. Am trying my best to work with what have. To make power with what I have. Minimizing cost. What do u think is the best way of achieving this goal?

[@wyattklimczak9054]

Sorry but these numbers are weak, not sure what's missing in the set up but 6262 @29psi should be making well over 400.Most likely in the tuning as I was able to make 360awhp on a gtx2860rs @22psi on a mustang dyno at that. Also If your gonna pull the motor on a customer's build at least wash the engine bay.

[@COMotorsports]

Weak but it made more power than you? ;) In all serious stock valve springs are holding it back so I couldn't rev it any further. This turbo needs RPM. I've made ~700whp with the same turbo on a 1.8t with a built head. The turbo is not even getting to it's effecieniny range yet. I assure you there's nothing weak about the potential in this setup.

[@MisterMuffin_]

This makes me want to go big instead of bolting on a K04...

[@COMotorsports]

A K04 is not worth it on a 1.8t in my opinion. Little power to be had. There are other options I would look at over a K04.

[@MisterMuffin_]

@@COMotorsports What would be some good examples?

[@COMotorsports]

@@MisterMuffin_ Our big turbo program is built around what the vehicle is going to be used for... and the end goals. So it's sort of changes from build to build.

[@christianharnisch3936]

KO4 cost per hp is the worst upgrade by far for the 1.8t think the best bang for the buck is the disco potato setup, unless you go big turbo.

[@scottricci7154]

Im not so sure about the rivets on the stock diff

[@louwgreeff4195]

Has to be the very worst sounding exhaust i have ever heard, thankful i dont need to listen to that noise every day. Good job on the motor though.

[@COMotorsports]

Not the worst I've heard but up there. Lol

[@597jc]

Any experience with the Link standalone ecu for vw/audi? Building my b6 a4 1.8t, from what i hear its one of the easiest to plug in and tune. Any thoughts?

[@COMotorsports]

Haven't used it, but tuning with most standalones is going to be similar. There will be no plug in a and go options, they will all need to be tuned. Much like the plug-in Haltech we used in on of our recent videos on a 1.8t, it still needs to be tuned for the application.

[@597jc]

@@COMotorsports I knew itd need tuning no matter what, just wondering if theres a benefit Haltech vs Link. Ill do some research, thank you! Love the channel btw, one of my favorite channels

[@COMotorsports]

@@597jc appreciate the feedback, honestly from what I know of both I think either is a good option. I just haven't personally used Link yet.

[@Khumry]

you should think about opening up a vw shop in south wales uk, gwent vw so called specialist's in south wales are rip off's, they say they fix your car but leave bolts lose in the engine so it brakes and then they wont to charge you 1000s more on top of say £5000 you've all ready paid them. im gutted as a friend own's welsh coast customs he stopped doing tunning and moding like he used to because of ill health.

[@fabrizioescalon4392]

Saludos desde argentina 🇦🇷

[@Janet_Airlines802]

It amazes me how much HP these little 1.8 can produce.

[@COMotorsports]

This isn't a 1.8L (or 1.8t). This is a 2L 16v.

[@Reinlofi]

CO Motorsports why did you name it like this??

[@COMotorsports]

@@Reinlofi sorry thought this comment was on a different video. This is 100% a 1.8t in this video. Sorry for the confusion.

[@StaxxxCmd]

What fuel pump size?im going gt3582r with 1000cc

[@COMotorsports]

DW in tank.

[@TechX1320]

is there a major difference between golf gti 1.8t's and jetta 1.8t's? I swear i see more jetta's built than golf's. I hate a 1.8t jetta myself but has some issues, and like the golf more

[@COMotorsports]

If you're talking MK4, all the same stuff.

[@johng2779]

My man's looking jammed ..hells series. Lol. But no doubt he's got the skills. That Jetta must fly .. Makes me wish I wasn't hopping up s Passat.

[@dougslate7095]

I wanted to know if you would be interested and some sponsorship I have an empty for Volkswagen Jetta 460 over it's got a guarantee 30 Turbo je rods IE Pistons stage 3 tune everything is there there's a couple other things that need to be addressed so we can really lay the power down like it should. I going to beg me not to. So I held on to it . Now

[@COMotorsports]

Not sure I follow

[@dougslate7095]

@@COMotorsports I have a full built 1.8t and wanted to know if you would tune it I have unitronic stage 3 now but the car has some much more it can take . Would you sponsor me I take it to the drag strip by my house . Last pass 11.34 with shit tires came threw the traps at 128 that's some 123 to but I want more pore and boost

[@willdadon6590]

How much would it take to get a 1.8l mk4 golf to these types of power

[@COMotorsports]

Watch our 18hoopt cost video. Does a pretty good breakdown.

[@iJusttin45]

Awesome work guys 👍.

[@COMotorsports]

Thank you sir.

[@joannac1397]

Is there any reason why I couldn’t use a gfb g-force 3? Do I need to change anything in maestro to switch boost control into open loop? Or does it just force to turbo to do as it’s told?

[@COMotorsports]

If you unplug the n75, then the stock ECU doesn't have control over boost anymore. Then use an EBC to control boost.

[@joannac1397]

Thankyou so much

[@tylerjdubbs3141]

you should run a maf if you're running boost over the stock pressure sensor limit with stock ecu

[@COMotorsports]

Seemed to work ok. ;)

[@tylerjdubbs3141]

CO Motorsports yea sure, if not having load based compensation for anything past 22.5psi “seems ok” 🙄

[@COMotorsports]

@@tylerjdubbs3141 I hear what you're saying... but unfortunately this is the way Maestro is, and plenty of cars have made much more power than this. In fact on this platform, most tuning providers maxed out the stock map on their larger injector files as common practice. Doesn't mean there isn't a better way to do it, but if it works it works.

[@tylerjdubbs3141]

CO Motorsports it has nothing to do with maestro, this is the way ME7 is... the car has plenty of room for a MAF so why not run one instead of relying on knock based corrections for timing and lambda control for fueling, that’s just such a hack job

[@COMotorsports]

@@tylerjdubbs3141 I'm aware it's not a Maestro issue, hence my previous reply. The client wanted a BOV... hence why it has no MAF. Anyways, I'll keep hacking cars. Thanks for your input.

[@jarridforrence4072]

What 1000cc injectors Did you end up going with

[@COMotorsports]

Bosch

[@jarridforrence4072]

CO Motorsports you have the part number handy? I ran out of fuel in my 630’s at 447whp need more uo top

[@COMotorsports]

@@jarridforrence4072 comotorsports.ca/bosch-95lb-1000cc-high-impedance-fuel-injector-inj95hb.html

[@jarridforrence4072]

CO Motorsports did you also need to add the injector spacers for the Bosch or do they fit oem rail/length

[@COMotorsports]

@@jarridforrence4072 the ones I linked fit without spacers, some do require them.

[@erikfossum3293]

Did u went catch can to atmosphere or back into inlet pipe.

[@COMotorsports]

It's a mafless car so it can be either way, but we vent to atmosphere when mafless.

[@jdportwerks6795]

Great job!!!💪🏼 what compression is that? I was under the impression it would’ve made that same power at a lesser boost?

[@COMotorsports]

Stock compression 9.5:1. It's using stock pistons, and the head has not been decked, and using stock head gasket. And I don't follow your question about made same power at lesser boost... what are you comparing too?

[@jdportwerks6795]

CO Motorsports sorry I was under the impression these motors were 10.5.1 or 11.1 compression. If that were the case the motor would have made the power it made with less boost. That’s what I was trying to explain.

[@jdportwerks6795]

CO Motorsports with that size turbo

[@COMotorsports]

@@jdportwerks6795 Ahh... the newer direct port injected engines have higher compression but the older port injected 1.8t engines have lower compression. But yes with higher compression it would make more power with same boost level. The issue then is you can't run as much boost due to detonation so it's a trade off if you don't have good fuel to support the compression.

[@MARS-GREENH0USE]

7:19 hose gets plump

[@johnzubac4293]

That is alot of boost 29 psi for our shitty canadian 91 gas. Great numbers. I like watching because your a crazy canuck like me. Im stuck with the shity 91 in the GTA as well.

[@jettamaster3297]

we have 93 and 94 at the pumps in the GTA

[@michaeltremblay9229]

Hey bud that’s a 3 port solenoid I see you up there? I’ve been trying to find out how to do this because I have a mk4 big turbo set up gt3071 turbo border 60 over 60 over je piston cp rod the list goes on man . Just can hook up . Anyways where are you located? I’m in New Jersey and wanted to get the car retuned

[@COMotorsports]

Were east coast Canada. We have a 1.8t video coming with a 3071 that we do alright with.

[@johnmoser2689]

Actually watched this and the awd vr6 turbo video back to back and was surprised the 1.8t made more power I always thought the vr6 would easily out perform a 1.8t

[@COMotorsports]

That wouldn't be apples to apples, although this 1.8t has a similar size turbo 62mm it's much newer technology, and brand new. The other is very old and tired. Next up, we had decent fuel in this one at the end which allowed more timing... which in turn makes more power. If we were able to play with timing on the VR and add better fuel it would have made more power for sure.

[@johnmoser2689]

@@COMotorsports thanks for demystifying that for me...I appreciate the response

[@COMotorsports]

@@johnmoser2689 Glad to help.

[@steambuns2283]

hey man do u have any video on how did remove the sai? did u remove the n112 aswell?

[@COMotorsports]

You don't need a video. Remove and plug holes that aren't needed. Easy

[@steambuns2283]

@@COMotorsports did u remove the n249 aswell? or just relocate? i tried to remove both sai and n249 and my 1.8t began in limp mode after that

[@knowitalls8079]

Those injectors are maxed out.

[@fowleraj26]

Great job man! Can I ship my 01 bug to y’all?😂 it’s my daughters car and runs like crap on takeoff but moves pretty well when the turbo spools up. I keep getting 2 codes fuel pump circuit and camshaft sensor a. Any feedback is appreciated thanks

[@COMotorsports]

Ship it. :)

[@hawaiianpunch20v]

I saw in another comment you really like the gtx28 series turbos. What kind of numbers would you see out of a 2867 gen2 on a fully built 1.8t aeb on e85?

[@COMotorsports]

You could make similar power to this on a gen2 gtx2867. You'd just have to lean on it harder. The turbo selection did this one was chosen based on the guys goals and future plans. I've made near 700whp on this same turbo on a 1.8t.

[@hawaiianpunch20v]

CO Motorsports yeah I already have it I just haven’t got it tuned yet, I was wondering what my numbers would be haha It’s in a b5 a4 so I’m going to lose some whp with Quattro

[@COMotorsports]

@@hawaiianpunch20v Comes down to boost, engine specs and fuel... oh and how big your balls are. :) The turbo itself is capable of making decent power. That little turbo with quattro is going to be fun on the street.

[@hawaiianpunch20v]

CO Motorsports yeah that’s what I was hoping for lol

[@guillenalex2908]

Love to see it, building a caddy and throwing a 1.8 hope to be done around summer next year.

[@COMotorsports]

Best of luck with your build.

[@ffspablo8739]

Make a video of it mate. Make it easier for me to do 👍

[@OliG2]

I think it’s a crappy setup ! It’s missing at least 1k RPM up top to have useable power ! It finally wakes up at 5k and hits cutoff at 6.5k…if it revved to 7.5k it would make more sense but as is you’re much better with a smaller turbo that kicks in earlier in the RPM range ! Perfectly tuned with a K04 it would be much quicker on the street !

[@COMotorsports]

K04 are dumb on 1.8ts. However this setup was built to make 600+ originally. This was just step one hence the lazzy setup, however it got abandoned and this car doesn't exist anymore.

[@OliG2]

@@COMotorsports that makes a lot of sense, thanks for the reply, you guys are quite good 👍🏻

[@COMotorsports]

@@OliG2 no problem, and much appreciated

[@Chrismay0987]

Is e85 good for big turbo 1.8ts?

[@COMotorsports]

E85 is great for making power, and it burns cleaner. Just make sure your fuel system is up to the task.

[@kasugster7568]

Stock intake mani?!?

[@COMotorsports]

Correct, stock TB as well.

[@TONIBLADE]

I’m going to build a r32 mkiv motor, going to install a bw8374 turbo that was in my other car and I want to know what Parts you recommend for the motor, internals wise.

[@COMotorsports]

All comes down to power goals. We have a few 3.2 VR turbo builds on our channel, be sure to check some of those out.

[@paullatour7012]

I’m mid-mounting an AEB engine from a Passat with the Passat 5 speed. Do you see any difference in performance between the inline vs transverse intake manifolds? I can run either.

[@COMotorsports]

Zero proof in performance, but the longitudinal intake is more of a center feed which is what I'd use in this instance.

[@AlphaWolfElectronics]

Just curious how come the torque is lower vs the HP on a big turbo. I have a K03 sport on my 1.8T awm engine. And my Torque is quite a bit higher then my HP. Was just curious

[@COMotorsports]

Many things play factor in that. However the biggest one in your case is turbo size. The tiny K03 is good a making low end power and torque, but doesn't flow much after 5000 RPM, which is why it feels peppy in the city, but no fun at all on the highway when you try and rev it out further. Put a larger turbo on and it can make similar torque but more peak HP. But with proper turbo selection you can have the best of both worlds up to a certain point. I stopped caring about TQ on a street car at around 400wtq as it becomes useless and just breaks a lot of stuff, so after that it's more so about obtaining peak power. Also note cam selection plays a very large factor in this as well when you start to modify the engine. I've made higher 400wtq, low 400whp then just switched cams and completely changed the graph. Making higher HP and lower TQ... which is exactly what I was trying to accomplish on it.

[@AlphaWolfElectronics]

@@COMotorsports thank you so much for explaining this. Have you or anyone else had any experience with either of these cams. Brian Crower Stage 2+ Cam Camshaft 262 / 272 for Volkswagen VW Audi 1.8T 20V www.ebay.com/itm/362956065824 Or Piper Ultimate Road Cams Camshafts for VAG 1.8T 20V PN: AUD20TBP285 www.ebay.com/itm/323654890675 Or any of the piper ultimate road cams I was really hoping to find a set of Integrated Engineering Street and strip cams but they have been out of stock for years. Really wish you were closer to Pennsylvania. Thanks

[@knowitalls8079]

I tune better without a wideband and and no dyno

[@COMotorsports]

Probably don't need a computer either.

[@knowitalls8079]

A simple google injector calculator will show you the injectors are over 80% duty cycle on pump gas. Put the rev litter lower so it don’t hit injector duty limit. Do a data log and you will see it go over 100% duty cycle. It’s not boost cut your hearing you have to small of injectors ask me how I know

[@bernier161616]

Did I you have some problem lately with that fuel pump ?

[@COMotorsports]

???

[@bernier161616]

@@COMotorsports been reading a lot of bad review about the dw65 fuel pump lately

[@COMotorsports]

@@bernier161616 we've used them lots

[@joes.7536]

I hope this is my future. I have a 1.8t aeb manual B5 Passat in my garage. Full bolt ons with stock turbo. The desire to go big turbo has really increased in the last year. Finally caught up in all the maintenance with high-quality parts. Definitely a maintenance heavy car that only likes premium parts.

[@COMotorsports]

Best of luck.

[@agabaga1073]

8:07 what is the torque measured in nm? And second question has anything been done to the trans ? How would this build go with drags what are the weak points drive train wise ?

[@COMotorsports]

In North America we measure in WHP and WTQ. VW transmissions are generally always the weak point.

[@Crypto_Chino]

He def saved money by using stock intake manifold and TB.... with that being said, how much would a build like this cost, parts and labor please ?

[@COMotorsports]

All depending on the mods you have, power you're trying to achieve, future goals and where you're located. We're located in Canada so parts are a bit more expensive here due to our crappy dollar.

[@brentkailbourne6152]

Cost of this with parts roughly

[@COMotorsports]

Watch this video, it will give you a good idea. kzbin.info/www/bejne/iIeshWl5nbOEa68

[@jorgerivera6555]

I've been thinking of running my 1.9 tdi mk4 Jetta just the thought of it makes me happy tbh

[@COMotorsports]

Unfortunately you're not going to make anywhere close to this power. :)

[@lukecowell7516]

@@COMotorsports you sure about that theres plenty of 400+ 1.9 TDI's in the uk

[@COMotorsports]

@@lukecowell7516 l'm sure. ;)

[@winky_ice]

Planning on doing a rebuild like this. Got some questions for you guys: My car 1.8t has 240,000 miles and change my oil every 5k miles and hasn't seen overheating issues in the 17 years that I have owned this little guy . Doesn't smoke or anything like that. Just want to put rods and do a bigger turbo. Something reliable and fun to drive. Do you recommend changing the main bearings or just leave them in there and do the rod bearings? Also did you install calico or standard coated rod bearings? Planning on using the same pistons. Whats piston rings do you recommend? Is Grant fine? Thanks again and keep on rocking this 1.8t builds!!

[@COMotorsports]

If the compression is good then you don't really need to change the rings, however since it has high mileage and you're going to have it apart than it only makes sense to do them. I use ACL Race bearings.. in regards to the mains, that's up to you... I've done plenty with stock main bearings. Just depends on power level you're chasing and what it will be used for.

[@winky_ice]

@@COMotorsports Thank you so much! Definitely would like to reach close to 400hp or a little more. A fun street daily!! I'll go ahead and change the rings and throw in some H-Beam rods! Great video!

[@COMotorsports]

@@winky_ice Appreciate the feedback, don't forget to hone it before installing new rings. If you're using old rings don't hone and put in same holes, if you're using new rings you must hone it first.

[@winky_ice]

@@COMotorsports For sure its getting honed. Thinking about getting those supertech exhaust valves and changing the valve seals and not decking the surface. Maybe clean the valve seats. What you think? should I send it out to a machine shop?

[@COMotorsports]

@@winky_ice If you're trying to make big boost and are unsure of the state of the head then for sure. But if it's straight then chuck it back on. Exhaust valves are a good idea though.

[@peterbarrett531]

Where are u based in the uk

[@COMotorsports]

Canada

[@anonlincracing2484]

Iv got the BORA front end on my 3 Door golf by far the best looking mine is also a 1.8T20v but an early 1 so biggest turbo I can get on it is a K04 absolute riots to drive especially when mine weighs 1104 kg

[@COMotorsports]

Lots of turbo options available for this.

[@anonlincracing2484]

@@COMotorsports see I thought you was limited due to it being an older system I was looking at a GT28 after your video.but got told it wont work due to it not working on vacuum pressure. I know of a K300 turbo but never seen 1. So Iv just stuck with a K04

[@robertmartinez5173]

Nice great work just bought a 1.8 turbo unfortunately it's automatic thinking of throwing in a k04 cuz the stock turbo is pretty much done for not trying to race it really just trying to get a little more horsepower and better response out of it it's a daily driver would love to do a big turbo but as a daily driver not sure if that's the way to go

[@COMotorsports]

Big turbo's can be daily's no problem. Should you take on a big turbo project with your only car... not a great idea. lol

[@yeromartin7443]

I have a 2003 vw Jetta 1.8t, is a K04 turbo a good upgrade?

[@COMotorsports]

There's better options for a bit more imo.

[@calebfletcher1.8t9]

Did you do headstuds ?

[@COMotorsports]

On this one yes sir. Generally always do.

[@jorgelopezTLA]

Hi... stock engine?

[@COMotorsports]

No

[@kennyfisher9216]

how to by pass n75

[@COMotorsports]

Disconnect vacuum lines to it and hook to electronic boost controller.

[@luispadilla1675]

Excellent video, as a tuner what are your thoughts about adding nitrous to setups like this one? my turbo already max out so I was thinking on adding a 50 wet shot on e85

[@COMotorsports]

I guess it comes down to what you're doing with the vehicle, what size turbo, when you're looking to spray it.. before or after turbo is spooled etc. Nitrous is an effective power adder, but for the cost.. I bet you could find a newer tech turbo to do exactly what you're looking to achieve with zero sacrafice.

[@MrPengu33]

Where you based ?

[@COMotorsports]

East Coast Canada

[@joannac1397]

Also love your content absolutely love the channel and I’m always on the lookout for your next video

[@COMotorsports]

Awesome! Thank you!

[@joannac1397]

But please share some wisdom on boost control and maestro

[@noreagabugatti1724]

I'm coming to you guys to build my car...

[@COMotorsports]

We're ready

[@wolfmooo6501]

I have an audi 1.8T AMU engine, can i run that CTS turbo pipe the same way as that one is? I'm just familiarizing myself with the 1 8 platform

[@COMotorsports]

It would depend on what you have that AMU engine in I guess.

[@wolfmooo6501]

@@COMotorsports It's in a TT

[@COMotorsports]

@@wolfmooo6501 I didn't want to assume incase it was a swap. But I don't really understand your question, what "turbo pipe" are you referring too? This is a complete CTS turbo kit. So all pipes (intake, charge, and downpipe) are CTS.

[@wolfmooo6501]

@@COMotorsports I'm sort of new to the whole terminology that has to do with the 1.8. Yes, I like the looks of the CTS turbo kit on the right side of the engine bay. The engine in mine currently just has a K&N cone filter, and I'd certainly like to consider getting that same kit that's on that one!

[@xlunalifex]

You have more details on how you ran that catch can? That's slick

[@COMotorsports]

This is my typical go to setup on MK4's. in behind the bumper behind on headlight. -10 line running from valve cover and crank case over to it. Slick, and out of sight.

[@DriveCarToBar]

These were always great little motors as long as you didn't get one of the ones with the incorrect (or incorrectly installed) rings from the factory that used oil like crazy. I'm guessing those have all either been retired or rebuilt at this point. I'd love to do a little project with one of these, something like a Triumph Spitfire. Nothing crazy, just a decent turbo and injector upgrade. Get up above 300hp at the wheels.

[@COMotorsports]

Yeah pretty simple to make 300whp.

[@DriveCarToBar]

@@COMotorsports yeah, I was collecting parts to swap one in my old mk3 GTI, but life happened. Back then, the hot ticket was a K04 turbo, bigger injectors and a tune. They aren't even breathing hard at 300whp.

[@COMotorsports]

@@DriveCarToBar yeah k04 I've always thought was a complete waste on these.

[@DriveCarToBar]

@@COMotorsports probably, but back then, that was what you used because the K03 they came with would pop if you turned them up too much. The death shriek of a K03 is a sound you never forget.

[@schattenbund]

330 torques??? WTF thats very very bad

[@COMotorsports]

It's a big turbo with no rpm. What do you expect?

[@tombosixer7342]

You guys ever do 8v 2.0 turbo jobs?

[@COMotorsports]

Mostly swap to 1.8ts. But no problem boosting an 8v. It just more costly for usually less power.

[@adamhawk160]

Bought to pull a 1.8t for my mk3 Jetta thanks for showing me how to get good hp out if it

[@COMotorsports]

No problem, glad you like. We have another 1.8t build coming very soon. First vid of that series should be later in the week.

[@tysonmandela9265]

What turbo is the car running ?

[@COMotorsports]

Pretty sure it's in the video.

[@genezaiser2424]

I like the video! Makes me excited to start working on going big turbo

[@COMotorsports]

I appreciate the feedback. Definitely a learning curve, I'm not much for being on camera. But we'll get there. Good luck with your project.

[@genezaiser2424]

CO Motorsports thank you! Ill be tuning in for some future videos

[@COMotorsports]

@@genezaiser2424 Already in the works. :)

[@stevecvntniko8271]

Stock rods? Or forged

[@losprod.6210]

Where state are you based out of?

[@COMotorsports]

We’re located in east coast Canada.

[@MarkNealon]

How much does a build/tune like that cost?

[@COMotorsports]

Depends on parts, location and what you're starting out with.

[@shawnlibby675]

Awesome tuning

[@COMotorsports]

Thanks.

[@tirecchatman547]

U have a serious look on your face 😂... Love it

[@COMotorsports]

Stressed about filming myself. Lol

[@TokyoCollins]

thats a hell of a fun street car! just needs an LSD now so she dont pull for the rubarb when ya giver the beans!

[@COMotorsports]

It really needs valve springs, another 1000rpm will make it a lot more fun, with lots of power band.

[@I53-624]

What’s done to the engine internals

[@COMotorsports]

It's in the video

[@samshadi]

Awesome gain! What state ya from? I would like to get my car tune too?

[@COMotorsports]

We're actually on the Eastcoast of Canada.

[@samshadi]

CO Motorsports damn. You guys have a website?

[@COMotorsports]

@@samshadi comotorsports.ca

[@samshadi]

CO Motorsports thanks. Btw you guys do etuning maps for eurodyne?

[@COMotorsports]

@@samshadi WE can, drop an email to [e-mail] with your build sheet.

[@giveusone143]

Dave does great work, thanks for the vid , shel

[@CtdnCA]

All in all how much would a set up like this go for? Nice build!

[@COMotorsports]

Price really comes down to what mods you're starting with, quality of parts and location. Here in Canada our dollar isn't as strong as the USD so it costs us about 30% more for parts then say someone in the US.

[@noreagabugatti1724]

Where is your shop?

[@COMotorsports]

East coast Canada

[@stealthjuni]

whats boost cut and why ??

[@COMotorsports]

Truth. lol

[@MaalyFoo_]

Stock head studs or ARP?

[@COMotorsports]

ARP of course.

[@Vladdog247]

tune my 1.8? lol

[@COMotorsports]

No problem

[@jeancharlesrabaux5658]

No 1800 cc is the 2L yes ok

[@yoyomaster4545]

How much torque is the fx400 rated for?

[@COMotorsports]

There's lots more to clutch selection then just Torque.. like what are you doing with the vehicle. Drag racing, road course, daily? In short you can't have something that does it all. No problem having two different clutches that will hold the same amount of torque, however one can be suited for more daily use and less abuse, where another won't last as long on the street but will take more abuse. Just comes down to what you're doing with it. But we've seen 400wtq, and track abused for many years on FX400's.

[@yoyomaster4545]

CO Motorsports ok cool thanks for the reply, I’m building a 1.8t and looking into an fx400 for the engine that will soon be in my daily, my goal is 350-400 hp

[@COMotorsports]

@@yoyomaster4545 For dailys.... I typically do the FX350's for that power level.

[@WhiteJawz1]

@@yoyomaster4545 get an fx400 it might last 400kms lol

[@ervinhernandez3137]

are you in . N America ?

[@COMotorsports]

Yep, East Coast Canada.

[@ervinhernandez3137]

@@COMotorsports thanks

[@shepardman993]

Love your opinion whats the max power on 98 fuel on a golf R max??

[@COMotorsports]

6 or 7r? They both have totally different limitations. If you're talking about stock turbo on either, the turbo will run out of steam before the engines capabilities.

[@shepardman993]

CO Motorsports it’s a Mk7

[@COMotorsports]

@@shepardman993 Plenty have made 500 with stock engines.

[@shepardman993]

CO Motorsports on standard turbo?

[@COMotorsports]

@@shepardman993 Look at any of the major tuning providers, the numbers are all well documented.

[@zion1493]

How much is the tune

[@COMotorsports]

Depends on provider, options and setup.

[@zion1493]

CO Motorsports r u guys in Colorado?

[@COMotorsports]

@@zion1493 East Coast Canada

[@SteveDidThtat]

What tuner are you using?

[@COMotorsports]

His name's Dave, he's in the video.

[@SteveDidThtat]

Lmao I met software, I love Dave

[@COMotorsports]

@@SteveDidThtat Eurodyne Maestro 7

[@SteveDidThtat]

@@COMotorsports appreciate it! Anxious for more MK4 1.8t content

[@COMotorsports]

@@SteveDidThtat No problem. There's a bunch more on the channel, if you haven't checked it out already.

[@tirecchatman547]

Nice... we're u location

[@COMotorsports]

Eastcoast Canada

[@tristan8035]

CO Motorsports what province

[@juice3906]

Going big turbo soon in my mk1 1.8t

[@COMotorsports]

Good luck. Great engine in that car.

[@juice3906]

CO Motorsports hell yea already rips with a ko3

[@Bo0sted_mkiv]

I have a gt3071r turbo kit for sale. Will have IE rods on AWP pistons as well soon for sale.

[@miguelalvarado8120]

@@Bo0sted_mkiv could you ship to 77083 ? And how much for turbo setup?

[@2Fast2Furious2011]

Where are you guys located I have a refresh block with IE rods and calico bearings pretty part for part setup only difference is I’m working gt3076.63 and atp mani. Are the exhaust valves necessary I’ve seen yes and necessary alot of mixed answer out there I have meth to try and keep temps down regardless.

[@COMotorsports]

stock exhaust valves are a common failure. If you're shooting for 350 plus HP it's not a matter of if, it's a matter of when.

[@2Fast2Furious2011]

@@COMotorsports ok thanks for the prompt response so even with meth helping I should still refresh head ditch the sodium filled valves and then I’m good to send it? It’s a street car too idk if that matters. And 350 crank or wheel?

[@COMotorsports]

@@2Fast2Furious2011 With upgraded exhaust valves, and a set of upgraded rods we're comfortable to around 500whp.

[@2Fast2Furious2011]

@@COMotorsports wow ok cool thanks a lot you guys are located in Canada? I’m in New Jersey so sadly it’s a trek unless you guys have a sister shop or something but if not do you guys do remote tuning I have maestro 7 but I’d have to locate a dyno rental somewhere

[@COMotorsports]

@@2Fast2Furious2011 yeah we can. Drop us an email with your engine and fueling specs and your power goals.

[@matthewpetercsak6203]

Is it a gen 1 precision turbo ?

[@COMotorsports]

2

[@matthewpetercsak6203]

@@COMotorsports I have a gen 2 6062 but .82 billet wheel and dbb. It seems to perform better that the 6262. I thought the 6262 was only in old tech and absolute when gen 2 came around.

[@COMotorsports]

@@matthewpetercsak6203 This is on a stock small port 1.8t and only 7200rpm. Also this is the smaller .63 AR. A 6262 will make 700whp... it's the rest of the setup that's sort of holding it back.

[@matthewpetercsak6203]

@@COMotorsports same as me. Small port, stock intake manifold etc .

[@GeroCastreje]

Isnt that turbo too big? i have a 5557 .64 here and im scared of the lag, when hits full boost?

[@COMotorsports]

I would not spec this turbo out for a 400whp tops HP build, definitely not. I chat with each client to ensure we're building the setup to their needs, be it autoX, drag racing, street or road course. In this case the customer wanted power and intends to go further with the build...meaning this was just step one. Since the next step wasn't going to be too far off in time I sized the turbo for the end goals in this case, which was more power.

[@GeroCastreje]

@@COMotorsports Thats great, i have mine fully built except for cams with a MasterPower r494 and i intend to use this Precision 5557 but i dont know if i want full boost at 6k with stock cams, im thinking about it haha, i want more than 390hp though, somewhere around 450 would be fine, you think that with the 5557 i will get there? with water/meth injection?

[@COMotorsports]

@@GeroCastreje I've used the 5557 on a few street cars, they're decent. My favorite probably is a GTX28, or 3071. But... you have to remember the quicker the spool the more of a tire fryer it's going to be, if it's FWD.

[@GeroCastreje]

@@COMotorsports thats true used small turbos before and i dont like the feeling, im not looking for the best build or the more expensive one, just a fun one for the street, that 5557 came cheap (980usd in Argentina) avoided the customs taxes etc. Maybe i just give it a try

[@COMotorsports]

@@GeroCastreje Perfect, well get to it! :)

[@mcanzy]

Hi, well, im trading my a3 quattro 1.8t 8l 370hp for a 1.9diesel quattro. Because, 1-cheap, 2-torque-, 3- can handle stock 550hp (with build trans and haldex). I had so many issue on build motor, head is not holding and expensive.

[@COMotorsports]

Switching from a big turbo 1.8t to a TDI, sorry to hear.

[@mcanzy]

@@COMotorsports yes.. Tdi can handle big turbo any better then a built 1.8t! I have been there. Strocker 2.0t (1.8t bam 58) and head build. I used it on circuit and daily, and my tdi with profiled rings ONLY is making more than 3x power/money then i spend on my 2.0 strocked 1.8t bam engine. Is not that i am cheap.. But i want performance. Haldex stage 4 (gti 6 rear) with haldex controler. Currently 75k km clock. I like your settup, but you aint racing it for long.

[@COMotorsports]

@@mcanzy I disagree, and you will quickly realize why. Best of luck with your TDI.

[@mcanzy]

@@COMotorsports You aint racing 500km in that engine for sure. 4hours. But ok. I understand you. Oil shaft going fail you, like it did me at 320km in race. But fine. Anyway, nice setup. Take care.

[@COMotorsports]

@@mcanzy the fact that you think your going to make that power in a TDI and cheaper then a 1.8t is the part that I disagree with.

[@lexomotorsports]

Right on

[@BobbyChubby69]

Nice video! What would be de whp number if you where using pump gaz instead of c12 race fuel on same 29 psi?

[@COMotorsports]

Thanks, we only have 91oct here ... and it's trash. No e85 either. So it will see around 20psi on pump gas on the street. Which made about 350whp on this setup. However I just finished another one which did 404whp on 91oct with a similar setup.. the difference was that one had valves and cams so we were able to rev it out more and make some more power that way.

[@BobbyChubby69]

I was running Unitronic 630cc bt software on mi built(similar built to this one) and whanted to upgrade to Eurodyne maestro7.A guy here in Montreal was a eurodyne dealer and told me that he was capeble of tunning eurodyne maestro.So i puchase the 1000$ kit and made the switch.The guy never be able to make mi car run correcly.Mi car was hiting boost cut after each pull,car was dying at each stop signe..it was total crap.So i whent back to mi good old Unitronic 630cc tune and the car running fine since then.I know it as nothing to do whit the software.In the end i have lost 1100$ in this story.Now im thinking to go full stanalone like aem infinity pnp or haltech 1500 pnp and running 1000cc.What would be all the benefic vs mi Unitronic tune?I would like you to make a video and explaning all the benefic of Oem ecu vs stanalone ecu.It wolud be great. Thank you for you good video great chanel!

[@COMotorsports]

@@BobbyChubby69 I've used the Eurodyne Maestro 630 files many many times directly off the server and they're decent. Something else was up I suspect.