Which 1.8T Should You Build?

[@COMotorsports]

It's that time of year and we have lots of cool stuff in the works. Stay tuned.

[@mk4geo822]

love the content keep it coming

[@chadbenjamin8118]

I'm pumped....Thanks Dave and Clayton for the effort, much appreciated.

[@fyuni-tek9422]

next episode, how about asking the same question to the cameraman

[@COMotorsports]

@@fyuni-tek9422 Not sure I follow this comment.

[@michaellockey6414]

What can you rev a standeed 1.8t 20v auq engine

[@mk4geo822]

I think this video deserves a part 2. Definitely deserves a series.

[@CatsBanana-1983]

I agree. That was a super cool video.

[@Euro_Rat]

Awesome video guys! One note for anyone that is curious. with an aeb block if you go with forged rods you need to grind down a small portion of the inside of the block(intake side) to clear the cylinder 2 rod. If you go with a aba crank in an aeb block you need to remove about 60% of the intermediate shaft gear in order to clear cylinder 4 rod. I have pictures and measurements if anyone needs them.

[@b5Bart]

doesnt seem like there is many of us left, atleast here in the states. people are moving onto the newer 2.0s and im seeing a lot of people do 07k stuff lately.

[@Euro_Rat]

@@b5Bart yup I completely agree alot of aftermarket 058 parts are being discontinued. There is def some like us out there but not many left for sure which sucks. I’ve been seeing the same 07k is sweet though. Are you on vwvortex or Audizine we may have crossed paths before if you are.

[@b5Bart]

@@Euro_Rat sure am and im sure we did at one point, ive been doing vw audi stuff for almost 20 years now 👌🤟🤟

[@Euro_Rat]

@@b5Bart hell yeah that’s awesome to Hear. Have a good one sir. What’s your username on the forums?

[@ag-workshop]

I have a question, someone is offering a set of ARP head bolts for £180 which is a lot of money, question is are they worth it over the standard £30 bolts on a 320 bhp car, have you ever had a head lift? At 1.2 bar of boost ?

[@Ανδρεαςπατ-γ5ω]

I have a golf mk2 with ajl code block(058) with adr big port head and cams, k03s, full 70mm exhaust, tt 225 injectors(386cc) and a seat sport cooler. I don't know the power of the car but runs very nice. The n/a cams from adr can keep the power higher and it's a good and cheap mod. Your informations are good and you know 20vt engine. Keep up with a part 2!!

[@4BillC]

What exhaust valves are better than stock and not $1000 for a set? Currently building a 1.8T with a goal of 350-400whp but more is definitely welcome. Capable of 8000rpm "safely" so springs are a must but I really want this to be a cheap dirty rebuild. Don't judge me! Nothing is going to a machine shop, it's getting a ball hone and new bearings, rods, springs and apparently exhaust valve. Again don't judge me, I have kids and I'm broke!

[@daleevans9029]

Supertech do amazing valves for the 1.8t. Inlet valves are never a problem. Must do exhaust valves as valves fail and the head falls off the stem.

[@sleepergli3080]

Mad scientist at CO Motorsports throwing the switch for power like Frankenstein!!! Hyped up!!!

[@btwlbchris3360]

I really want you guys to talk about head gaskets and stuff

[@MadAdventure919]

My AWP engine setup (Made 720whp 50psi kill mode) E85 2450# weight 8 point roll cage 8.5-1 SPA Piston IE Rod Stock heads and cam Supertech valve and springs to rev up to 9k Clutch Master 725 heavy duty spring Forger Oil pan with buffler External catch can 3071GT turbo for track day and 4088GT for big power Tial 50mm wastgate Tial 44mm blow off valve

[@shawnlibby4762]

Do you have a KZbin channel or a Facebook would love to see that monster

[@xJonnyStealthx]

I used an app head with a amk bottom end Running 327 bhp on my k03 hybrid in a mk2 golf, been running decent for a while on an omex 600 aftermarket ecu Works well for what it is

[@craighrodgers8443]

In South Africa seems the most common mk1 swap is a 2.0 8v or the abf swap. Lots of the guys do that swop. Nice to see and hear other ideas of other swaps.

[@CleanBa]

In Bosnia was Like that few years ago , but then it exploded with this engines with turbo.

[@alwinhugo5279]

But you know nothing runs like a cape town golf with a 8valve in hehe😂

[@craighrodgers8443]

@@alwinhugo5279 lol

[@wayneywayna]

Awp 1.8 for sure

[@johan5818]

The AEB has a cast crank, Agu, bam, apy, aum, amk, bjx, Bex all are forged cranks but there are mush more forged. Aeb and Agu are big port. But on my bam small port head I could easily make 500hp. I also went to stainless steel exzhost valves. Stock pistons are very strong.

[@liam-lh2nm]

Im searching for bam 225hp TT for the simple fact i hear a lot of it is forged from factory apart from con rods. I plan to run 350hp on stock rods and internals

[@BalticMotorSport]

Also 058 - AEB, AJL has M11 head bolts. 06A - AWP, AWM etc has M10.

[@COMotorsports]

Yes correct. The video is way longer than we expected. Point mainly...is if you're building it...it doesn't matter.

[@jquillenwest6168]

Build a aeb 1.8t😉 I’m also commenting before watching the video all the way through lol

[@aleksandaraleksandrov8213]

This is very difficult topic, essentially all 20vt are the same but very different when you start comparing engine codes. You should consider engine code when you are going to run stock ECU because thats were the biggest difference is. Some come with narrowband, some with wideband, cable throttle, drive by wire etc etc. Proven combination for low budget sub 500hp is 225hp(if you have later model 150 or 180 with me7.5 just buy a second hand 20mm wristpins pistons) to start with because it has the 20mm wristpin, me7.5 ECU. Buy a set of rods and exhaust valves and thats about it. Turbo choises are endless, very good solution for turbo is a k04-064 from next gen S3 with adapter plate that will give you about 400hp with spool from 2500rpm.

[@COMotorsports]

The engine doesn't care what ECUs controlling it.

[@aleksandaraleksandrov8213]

​@@COMotorsports correct but if you are to start with a car with narrowband ecu, cable throttle body it is a pain converting to later model me7.5 wideband ECU and drive by wire. Again thats if you are planning on using stock ECU and not standalone, if you are going straight for standalone ecu doesn't really matter whichever engine you pick.

[@COMotorsports]

@@aleksandaraleksandrov8213 I understand your point however this video wasn't about the vehicles they came in, which is why we didn't discuss that. It was strictly about building a 1.8t engine.

[@MrOki419]

Hi, I just seen your comment. I have a cupra r 1.8t 2005 bam 225bhp. I’m looking to achieve around 350-400bhp, what do you reckon I need to achieve this power? Will a hybrid turbo be sufficient? Or like u mentioned a later s3 turbo from 2.0tsfi be better ? Will exhaust valves and rods be enough? I would appreciate any information. Thanks.

[@aleksandaraleksandrov8213]

@MrOki419 Hi, depending on what you would like to do with the car. If you want nice easy to drive quick street car, definitely the k04-064 is the way to go. Rods are a must as well as exhaust valves. Also, you will need a minimum of 630cc injectors, bosch 044, or equivalent fuel pump and decent size bar and plate intercooler with at least 2.5" pipework to go with it, 3" downpipe with ideally 3" catback system and a very good tuner who could make work of the hardware on the stock me7.5 ecu.

[@terifi13]

AEB, ADR heads has biger port intake and also have biger camshafts all 225hp engines and 20 pin pistons has forged internals so the 19 pin piston isnt forged and handle less boost

[@longgoneg60]

I swapped an AEB in my corrado and although I love it, if I could do it over Id go with an 06A block vs 058. At the time I had all new G60 parts so I made it all work on a crappy worn out AEB. Anywho, great video, appreciate the info. Btw aeb came out in 97, earliest I know of. My block is stamped 97 production date.

[@sauvageaustudios]

I have an '03 AWM 1.8T B5.5 Passat 5 speed wagon with a K03S I need to fix... Damn deer... Now is the time to build it I suppose... This video was encouraging

[@ytho5912]

You should also do the 2.0 fsi / tsi please🖤

[@justlifeel1211]

I literally just bought a 1.8t to chuck in my mk3 mr2 after watching some of you old videos on the 1.8t. gonna gun for 400 with some rods with a Bam.

[@lopesmotorsport]

I have an aeb with 244000 kms 1.5 bar with stock engine only made an me 7.5swap and remap always treating it bad and it not bends do a long block love your videos

[@juddfyah]

You guys should do a video about buildings aba/16v turbo

[@euroberto85]

On the subject of pistons. I'm assuming new OEM pistons with aftermarket rods would be more advisable than using the old pistons out of my 205k mile engine. And on that same note, would you advise just trying to find the 20mm wrist pin pistons since the aftermarket rods are easier to find in that size? My old MK4 is tired and i want to show it some love after 6 and a half years of service.

[@xo7966]

You can reuse the pistons out of your motor as long as they are not damaged. (I.e. valves never made contact). If you have the smaller wrist pins and want upgrade to 20mil wrist pins, then yes, get new pistons

[@matk22]

Aeb or agu pistons. Check piston to wall clearance if your worried

[@pudermcgavin4462]

I own a mk7 1.8 about to install the full unitronic exhaust system and download the stage 2

[@Thatgameronps3]

Would you say it’s worth it to do a “stroker” with the 2.0 crank?

[@HidRomail]

1.8T question: How do you do 1.8t breathers on higher hp cars? Is it normal to have more oil coming up from the head compared with the block breather? Also, could a very restrictive (valved muffler, when closed) to cause a bit more breather blow by? Keep up the good work!

[@matk22]

Change the elbow on the block to a metal one. Then use 19mm oil/fuel grade rubber hose link the crank and cam breathers and either run to atmosphere or to a high flow lol can. And the atmosphere back to the inlet. Personally I run mine to atmosphere to avoid any oil blow by or condensation going back through the system.

[@HidRomail]

@@matk22 This is ruffly what I have at the moment, but with plastic connectors. The thing is, I see quite some oil being dumped, as it's venting to atmosphere. And I suspect it's coming from the head, not the block.

[@matk22]

@@HidRomail you could run seperate hoses and check. If it's from the head might just be poor oil or old oil If it's from the crank then it'll be due blow by and that's down to work rings. Can do a compression test to see what the engines doing

[@jellekorthuis9018]

@@HidRomail Get a Cloude9Customs billet breather elbow. They're amazing

[@XXSNIPERUKXX]

Small port head Stock Vs ported on same tune .. curious to see what gains could be made

[@matk22]

To many variables. Small port is good up to 450bhp but even then people have used a small port over 600bhp The real difference will be small port flows better down low in the revs due to port velocity The large port flows better up high revs due to port size and volume over the small port

[@MaxiimTribe]

That list is curiously missing the ATC engine code, thats what I had in my TT. Canadian car imported into US 01 TT Quattro 5spd with a k03.

[@richardalbanese5485]

I was wondering what your thoughts are on running the vvt tensioner in the head as opposed to non vvt tensioners. Is the extra potential power worth the added complication? lastly, I have a Link standalone ecu, so is tuning vvt on 1.8ts as simple as setting on and off based on rpm or is it variable in any way on these engines?

[@garyhowe88]

It's on and off, you can use it to help boost onset. Very easy to install also.

[@danielleon6782]

Could you guys do a 2.0 8v video? Like this video. Different ways to get more power, difference between parts you can swap out from 1.8t’s, 1.9’s and mix Match parts?

[@COMotorsports]

Unlikely, in my nearly 2 decades of doing this I haven't turbo'd one single 2L 8v. So needless to say they're not common, nor do I have any parts around that I could chuck at one. If someone wants to donate a decent manifold sometime I could likely make it happen.

[@Jrmquattto]

Aba block with aeb head aka 20/20 swap Aba came with thicker beefer pistons, forge crank, and oil squiters.

[@ivonevistic3776]

Unfortunately I cant provide you a video but I used to have a MK3 Gti 2.0 8v turbo`ed here in Argentina and made around 260 chp on stock internals using a electromotive stand alone in those times (2008) was very exciting back in the day!

[@jonathonwilliams93]

My 1.8t question, and you guys could turn this into a video: What is needed for a 1.8t stroker kit to 2008cc! I believe its just a TFSI ea113 crank but I'm eager to know more about it

[@rcm57238]

ea113 crank (92.4 mm stroke), adequate pistons (with smaller compression height and 20 mm wrist pins while you're at it) and 82.5 bore oversize will get you to 2.0 rods are all 144 mm long btw i think u can up the capacity to about 2.1 if you use the tdi crank (95.5 mm stroke)

[@halvdan7978]

@@rcm57238 bless you👍🏻

[@jonathonwilliams93]

@@rcm57238 piston suggestion on this dude?

[@rcm57238]

@@jonathonwilliams93 no actual tested results on this engine as i have never built one before but wiseco has proven to be a reliable brand (at least from what i've seen, obviously with proper installation) and they happen to offer stroker pistons for this engine

[@ziggyortiz37]

I wish yoy guys were located closer because I'd let you guys build up my 1.8t in my a4 quattro

[@r1sk3z]

Thanks guys for all the info you share on your videos. Taking the opportunity to see some of my doubts anwsered. I bought a TT 225 (APX) as a project car, aiming to push it as far as possible while keep it in realiable for its purpuse. Would like to see +750hp crank. VVT or No VVT Valve guide angles? Which? Oversized valves? Which ones? Exhaust? Intake? Both? How big do I need to go on the turbo for the 750hp? G30-900? How much of a difference does going 2L makes, other than spooling? TDI or TFSI crank?

[@MycketTuff]

Get on a forum my man, you'll get a lot more conversation out of the people who are there. KZbin really isn't good for that sadly. Unless you live in a very remote area you'll be able to go to car meets and stuff with the people you talk to, added bonus

[@andrewwright.]

the limit is 300ft/lb of torque on pump gas "99" on any 1.8t from Volkswagen/Audi/Skoda/seat.

[@andrewwright.]

the limit of the block is 900hp. will split after a few runs. block can't really handle 700hp for to long.

[@nivenbidassi2432]

I absolutely love this channel. You guys are super informative and entertaining. Here in south africa the guys say it's easier to make power with the agu engine code. Can't wait for the next videos.

[@chadbenjamin8118]

Thought I was the only South African here lol. Yeah the AGU seems to be the favoured one, if I speak under correction this one came with a forged crank.

[@nivenbidassi2432]

@Chad Benjamin yes it is also has big port.

[@dujuanjohnson5025]

Another thing the TT225 engine is a webbed block with oil squirters in different location then the other 1.8t’s. The AEB block has a external water pump and shaft driven oil pump.

[@matk22]

No the 225 engine really doesn't lol

[@dujuanjohnson5025]

@@matk22 really doesn’t what

[@izzyvw7510]

Great video. Right now I have an AGU and the APX engine and haven’t figured out what to do when it comes to my build. I have rods but can’t figure out which one to start with 🤦🏾‍♂️.

[@jellekorthuis9018]

I'd go for the 06A engine

[@johan5818]

Awsome content, I would say big port head Agu 18t.

[@MischaGielen]

Awesome video !! What would be the 1.8T engine to go if, like in my case, you want to upgrade from a 1.4TSI (CAXA) exchange-wise? Are there parts I can use from my CAXA to build on the 1.8T? Is there a better fit for a 20V compared to a 16V? I know the airco compressor can be re-used. The power I have in mind is just what's achievable with a good reflash of the chip, as it's a road car and I want reliability.

[@BOOSTEDDUDE]

That's super impressive the stock 1.8t Pistons can handle upto 500whp.Looking forward to the 1.8t turbo video. Interesting info between AEB and AWP heads. The AEB does look like it would have more flow.

[@CatsBanana-1983]

It does, but I saw in another video that the AEB engine has rod that runs through it and if someone wanted to do after market pistons, they have to have a portion trimmed off of p3 and p4 (I believe).

[@Jamk14]

​@Seth Ewan oil pump shaft. Yes rods u have to notch the block. Not a big deal

[@CatsBanana-1983]

@@Jamk14 thanks. Good to know it isn’t a big issue.

[@LAEdgar]

I’m hoping to rebuild my MK1 Audi TT 1.8T lol I die inside everyday I look at it. Hopefully one day it makes 300hp+

[@sebastianlorenzo4935]

I know you guys said don’t stress between the AEB or AWP heads. How does the VVT factor into power ? Does it restrict what you can do?

[@COMotorsports]

No, when you're shooting for big power it's deleted anyways.

[@dantesinfernopurgatory7826]

@@COMotorsports VVT in those engines is geared towards improved emissions more than power.

[@COMotorsports]

@@dantesinfernopurgatory7826 it can help with spool but again big power it's not used.

[@electricitize3332]

Bought a 1.8t Jetta….Went completely oem my motor has been totally resurrected/resurfaced. Everything has been gone through besides fuel pump. Got some gauges. My air/fuel ratio is 22.1. Should be around 14.1. Also I was told I need a tune…. New to the vw scene. Starting from scratch with all stock internals. It has a front mount intercooler and full exhaust. Not trying to make a ton of power I just want it to be healthy. 2004 1.8t awp manual 5-Speed. I need tips ab a tune and my afr

[@Austin-bc1yh]

So the "tune" aka ecu flash should help solve your afr ratio unless theres a nasty sensor feeding it the wrong air or fuel intake data

[@zakattack467]

How about the oil pumps between the two different types of blocks? Aeb (058) or awp (06a). Do either of the oil pumps fail more often than the other?

[@061garage]

1.8t question: could you guys look at the differences in 1.8t and 1.8N/A cams. You probably have a few you could put a vainer to, to see the lift. Maybe see if the part numbers are the same. I think my 1.8t has N/A cams in it😂

[@COMotorsports]

We never got NA 1.8t here so I'm not getting my hands on any. Sorry.

[@dialgia111]

Catcams released specs on the adr cams. It's on their website

[@matk22]

Yea Google it, it's been researched and tested. The higher longer lift aids turbo spool but kills down low drivability. Like anything. There's a compromise.

[@061garage]

@dialgia111 thanks mate.

[@joshuapellegrino7915]

I want to see you build a AWD. Considering that’s what I have and i want to learn how to pull a rabbit out of a hat so to speak…I love your guy’s channel

[@COMotorsports]

There's a couple on the channel already.

[@joshuapellegrino7915]

Not all wheel drive lol I seen those and makes me want to swap it but I was talking about the AWD head on 06a block has forged crank but none VVT the year before the AWP came out. I love y’all’s all wheel drive content you guys make it seem so simple but it’s very expensive to do! I can’t wait to learn about all the 1.8t no matter what you guys build!

[@COMotorsports]

@@joshuapellegrino7915 Ahh.. but if you watch this video... you will see it really doesn't matter. The different codes are irrelevant. It's basically big port or small port, that's it. So building an AWD head, or AWP or any of the others it makes no difference it's all the same.

[@gavinford9918]

Need to know everything about the atc 200 audi tt 180

[@alexandrepankoski6636]

2.0 stroker with g35 900 garret 20v heads with NA camshaft and supertech kit

[@cameronearly6581]

I have a BT Audi TTQ with a 3076, if you’d be down to chat about a few things that’d be great!

[@GreatLakesLogger]

I have a stroker 1.8t (2008cc). I wanted to drive it and didn't have the time or money at the time to build out the head. It has a EFR 6258 turbo. Is it worth me poking around and finding an aeb head if I'm gonna build one? I'm thinking about buying another head and having it built and ready so I can hopefully swap everything relatively quickly. Do you guys have certain brands you feel make pretty good valvetrain products, or are most of the common brands pretty decent

[@coultl6556]

You guys ever work on a 5 cylinder 2.2? Classic engine. Would love to see some old school stuff.

[@COMotorsports]

They basically don't exist around here. I do have a 2.3 coupe Quattro for a future build but I will be ditching the 2.3 for an 07k swap.

[@anoneyme5923]

Many thanks guys, juste a question, what about screws.. heads / puley cranksahft ... Etc

[@COMotorsports]

What is your question in regards to?

[@3duckit]

I am new and want to swap CIS to carb. Any suggestion’s? 1985 vw golf. Built in Pa! Thank you for these vids. Super helpful!!

[@COMotorsports]

My suggestion is don't do either. Lol

[@3duckit]

@@COMotorsports I purchased a 1985 golf for the intent of fixing it up for just an around town drive. Nothing crazy but what if not carburetor and I can’t get the cis working?

[@anthonygalvez5400]

Great video!!! Lots of great info. Thank you.

[@Tdeese6]

I just picked up a 2002 Audi A4 Quattro 1.8t and I don’t know what is a good upgraded fuel pump on a budget. So far I have Front mount intercooler , ko4 turbo , has a eBay diverter valve, and stainless 3 inch down pipe with 3 inch straight pipe exhaust all the way back. Also what would be good for my next mods

[@FrancisBaker-zt7wc]

I'm buying a MK4 golf eventually to modify looking at 500hp

[@rjack151]

Spaghetti connecting rods? Hotboi translation? ALL THE BOOST ALL THE TWO STEP. Y KOR BREAK. 🤣 I’m currently doing TDI Caddy things, boring I know. The full TDI swap was basically free (via part out) Plus owning a Caddy has been #1 on my dream car list. So I’m excited haha

[@CatsBanana-1983]

I have a 2001 VW Passat made in March. It was made in Germany, which is pretty cool. The engine has the AWM code, which is only for 2001. What engine is interchangeable? From the list of engine codes, the only other ones listed for Passat with 170 HP are AWT and AWM. ATW is listed for Passat, but it is only 150 HP. Will the Audi engine with 170 HP work (AMB)? Thanks.

[@COMotorsports]

If it's an external water pump engine then any external water pump 1.8t will bolt right up. If it's an internal water pump engine then any internal water pump 1.8t will bolt right in.

[@CatsBanana-1983]

@@COMotorsports Awesome. Thank you for letting me know. I can relax a bit.

[@pilot554]

Excited for Hoopte teardown, maybe it really had rods in it? can never tell with these used cars.

[@COMotorsports]

Time will tell. :)

[@OldManShoutsAtClouds]

Yes! Specific 1.8 question, what MAP sensor should I be running if I'm targeting 25ish lbs of boost? Aiming for 350chp.

[@COMotorsports]

Whatever your software is calibrated for. You can't just chuck a larger map in and expect it to work.

[@rkstuntz5278]

you have external waterpump 058 type block in a mk4 golf in canada (the 2.0l 8v where you talk about)? in europe its also a 06a engine with internal water pump. in europe the 1.8t 06a have also a forged crank, alot of 1.8t's are a AUQ code, 180hp, 19mm pin, forged crank, smallport head, 06a block

[@COMotorsports]

No internal waterpump 06a in mk4 2.0l and 1.8t.

[@TypicalBlue-rq8ri]

Ey up I have a A3 large Port AJQ and a TT small port Bam which would be the best to build bud 🔥🔥🔥🔥🔥🔥

[@georgeconner2742]

I have 2016 jetta sport 1.8t. Want to swap turbo to is38. Cannot find any videos on this

[@jamesmedina2062]

I-Beam rods can be very strong and your test proved it. 1.8 rods never looked like spaghetti to me

[@guitariste47]

Very interesting video; thank you ; I have the 225 apx engine; I would like to knowwhich connecting rods I should get (makes),and also which exhaust valves?Concerning the ecu, can I keep the oem one? thank you

[@derrickmd18]

what did you do to the 1.8t block to fit the 16v head?

[@COMotorsports]

There's a few things in regards to timing set-up. Nothing physical when it comes to the actual block or cylinder head.

[@asperf5708]

Thank guys , i love your video. I 'm french , my english not perfect but i learn a lot of the 1.8T. about that , i hve question concerne 1.8t ( BJX engine code ) mount in Polo Mk4 ( 9n3). so do you know if all piston in 1.8T are forged piston. also with stock piston and connecting rods after market, how many horse power safe able to, for all days usage ( street). Have a good one

[@StrongFreeLovin]

Are you sure that problem with exhaust valves is in the valves or maybe in the loose chain?

[@danieloshaughnessy8476]

Hey guys, glad to have found your channel. I am pulling my hair out with my cam chain roller count. Everyone says 16 but then it really counts 15. I have tried 16 inbetween notches and it ran terribly, I have 15 in between notches and it runs great. Even my Chiltons book has a poor diagram, that doesnt show truly the correct amount, as we all know the timing marks dont truly line up with a roller or a sproket tooth. Can you or do you have a video that clearly shows this step? Yes there are others out there but they "all" really have a bad video angle, or they just seem to count incorrectly. (I have an 04 Passat auto, with the AWM engine.) Thanks!

[@COMotorsports]

Sorry we don't do DIY's, we've discovered over the years that people interpret things as they want and we don't want to be responsible for people trashing their engine because of it. Those folks will likely do that anyways, but we'd rather not contribute to that. There is lots of great info on that engine out there, follow the book and it will run correctly, if it's not then you likely have something wrong elsewhere or your interpreting something wrong.

[@danieloshaughnessy8476]

@@COMotorsports Thanks for the awesome reply, I completely understand where you are coming from. I guess the old addage, is if it aint broke dont fix it. Which to that I would add "but you can still make it better." Thanks again! Shameless plug if you do need a diy on the 09a vavle body for the 1.8T autos, i have a playlist i created to help others not go through the frustration i went through to learn the install!

[@danieloshaughnessy8476]

I was able to swap it out no problem, after closer inspection it was more clear(ish) which roller lined up with the timing mark more than the other, so I went with my gut and all is well. Thanks again guys. PS Ive often thought about taking the longitudinal 1.8T with the front wheel drive and moving it to the back to make a mid engine rear wheel drive car. That would be a build I would love to do, but also love to watch someone else do.

[@speedracermccool3552]

I would definitely like to know your thoughts on the amb motors what kind of power can you make on a stock motor with bolt ons differences between amb motors and the others etc

[@COMotorsports]

As mentioned in the video, and sort of the point of it... They're all basically the same.

[@prettygood1976]

Can you comment on the APH engine? Specifically a sense of safe and reliable power ceiling, and thoughts on the fixed vs variable cam? I have upgraded a ton on the car, including a K04 and full intake/exhaust path, but never cracked open the internals.

[@COMotorsports]

As the video implies. They're all mostly the same.

[@MauriceEllerbee]

I’m building a big turbo Gen 3 1.8t. I’m stroking it to a 2.0 with ie Tucson rods and pistons with other supporting goodies and making an entire Frankenstein shooting for 500whp/wtq either or. Am I wasting my time?

[@beastman.330]

How much power can you make on a forged crankshaft before it breaks and what is the best headgasket that can handle 800 bhp.

[@COMotorsports]

I've made 700 whp on stock cast crank and stock MLS gasket.

[@andyhnio]

06А Block is the latest revision of all which is found in S3 8L’s , Leon Cupra’s , TT’s They all share the same Forged Crank, 20mm Wrist Pin, Small Port Head’s in all of 210/225HP cars. They also use 9.0:1 Comp Ratio and their Pistons are the latest and strongest revision of all factory ones made by Mahle. The best you can get out of 1.8T is making it Stroker with Early TFSI Forged Crank & Ligther crank than 1.8T’s one. Wider Bore diameter up to 83mm. Worst and weakest point of 1.8T is the Head and it’s been like so always. Going over 550/600 is well worth to invest money into Gridle Kit with billet Main Caps and ARP hardware and last but not least Fluidampr for better harmonics ofcourse. Building the head is well worth to be Big Port , port matched , port flowed. The rest is personal preference. And last but important! Use HEPU waterpump and Pierburg Oil Pump only, these two are proven to be the best OEM substitution!

[@COMotorsports]

A lot of this is incorrect and I have to disagree sorry.

[@andyhnio]

@@COMotorsports Which part of the written is wrong exactly? I own 1.8T S3 8L for 8 years now and it’s been thru few builts. All the info i wrote about stock components is very correct and I can assure that by the 1.8T list you show in your Video of which I know about way before I even own 1.8T I’ve seen many stock S3 pistons to be used on many 1.8t drag cars in my country ( Bulgaria ) on well over 500whp easy. I know few of them to live still.

[@COMotorsports]

@@andyhnio Without wasting 30mins typing everything out.. quickly. 1. not all 06A blocks are 20mm pins, for example this one is 19mm. 2. Stroker isn't' require to make power. 3. TFSI isn't the only crank that can be used for stroker, also I highly doubt the TFSI crank is lighter than the forge 1.8t crank. 4. Boring to 83mm is just taking material out of block, in turn making it weaker.... again not needed, and we typically avoid going that far. We'll find another block before going up to 83mm. 5. Girdle is 100% not required even up to 800whp+ as we've proven. Those are to name a few.

[@andyhnio]

@@COMotorsports Well, everyone choose how to built their engine by their choice right? What people get in America and in Europe is something completly different in term of final factory product. the followed vehicles I mention above share the same components all over. There are few people who proven the lighter crank on scale already, anyway that's not a point to be proven to anyone. 82.5 to 83mm is very common procedure in the UK especially. Regarding the Gridle kit I didn’t ask for an opinion I just commented my personal opinion based on years of following big companies in this type of industry building these engines from reliability to it’s limits. 99% of the Greekish 1.8T builts and not only 1.8 engines have been using Gridle kits to reduce the stress and prevent the block from flexing during high power applications. Cheap mod for what it is. Never mind, I do follow your content guys and I do respect everything you do and the information you share. Don't get me wrong I'm not a hater. Appreciate the replies.

[@COMotorsports]

@@andyhnio I appreciate the comments and following along. My points are for the people reading comments in the future. Maybe at one point people thought 600whp required a girdle but it 100% is not.

[@alejandrocasillas2466]

Hello guys love you channel. Question I have 2000 Vw Jetta mrk 4 with a 06A block engine code AWD trying to build it for daily driver/street car to push 450 hp to the wheels. Should I run with forged pistons if so which ones work best with IE connecting rods? And what size turbo should I go with let me know thanks guys. Much love from California!

[@sheldondombar1473]

We need a 2.5 built. Uncommon!

[@COMotorsports]

There's one scheduled for my daily..... all parts are here for built engine, G900, standalone, etc etc... but no time to do it. We need more subs so I can focus on all our own projects. lol

[@bryanjenkins7810]

What type of material are you using for your cylinder sleeves in your drag car or a high horsepower build engine 1.8T? Also what piston rings are you pairing them with? Ty

[@matk22]

Just stay stock. No need to be coating cylinder walls

[@THEBENASZESKIS]

04 Jetta Wagon AWP running Stage 2 Eurodyne software. Looking to flash Stage 3 soon, what reliable power level would you need to drop some rods in? And also rod choice, IE?

[@GTIZane]

Not a 1.8t question but about fsi 2.0t, what are the power limits of the stock internals and would i need a hybrid turbo to get to that limit or would a normal k04 be able to get to a safe power level for the stock internals.

[@tuurkishman]

Hi guys loving your 1.8t videos, I have a question about my seat leon mk1 cupra sport 180bhp App engine and it is whats the easiest way to make some cheap power ,also I've had to change my maf sensor twice because when the sensor is plugged in the car runs really bad now I've had to just unplug the maf/map sensor to make the engine happy question is this OK to do ? Any how lovering your vids

[@COMotorsports]

You have a leak

[@thecolemangarage]

I would like to inquire about purchasing a built 1.8t from you guys. Need a motor for my Mk4 GLI

[@COMotorsports]

No problem, email us with your goals and requirements and we can make it happen.

[@joshuaraines7574]

I gots one for ya 🎉 I’m tryna get to 300 give or take.. 05 AWP 1.8t with cold 🥶 intake, 3in downpipe all way back, Boost peaks around 21-23 settles at 18-19psi Traded my 225 TT for this GTI and would love to get past where I was with it.. was told there’s a “stage 1” tune but haven’t pulled the ecu to check label or anything.. my question is what is going to be the quickest way to 275-300.. turbo inlet pipe, intercooler,ko4 and/or equivalent..? Do I need to upgrade the spark and fuel pump? 93 octane. Any leads would be greatly appreciated 🫡

[@btbdesire4675]

do every single supporting mod(minus internals ofc) and get a tune spiking at 25psi on a ko4, im just under 300

[@COMotorsports]

K04 are a waste on these IMO. You want lager if your goals are 300whp.

[@btbdesire4675]

@@COMotorsports I agree 100%, I’m basically pushing my ko4 to the max. Go with a gt28rs so you can be “reliably” push 285+

[@conorjamesthomson]

What about a girdle? Did your 700hp wabbit have one? What power level would you recommend one??

[@COMotorsports]

My 850whp setup didn't have a girdle either. But I did have billet mains on that one.

[@electrifyingish]

how do I reset my active shutters and how do I make sure they are closing when the 1.8T is activated

[@christopherwright1261]

How about what manual transmission to swap my 1.8t from automatic I have a 03 vw golf 4 door

[@stephenjones4013]

What was your reason to 16v head on 1.8T build

[@COMotorsports]

A bit easier to work on. Less valves, less lifters, less valves to lash in, not much difference in flow.

[@RickyRussell-uz7jr]

Is the 1.8t 16v worth building upon?

[@iso-silence6228]

I got an aeb with all bolt ons but man the thing needs a tune and no one tunes them bc of the throttle differences

[@COMotorsports]

Has nothing to do with the throttle body, it had to do with it being a narrowband ecu.

[@DS-ed9nn]

great video. looking forward to the next!

[@yeahaight5692]

Please big turbo vr6 the hooptie I wanna see more vr content 😩how much boost can a stock vr take ?!

[@dujuanjohnson5025]

A good topic would be Vvt vs non Vvt.

[@matk22]

It's a non topic really. Vvt is used to add cold start up but people have used it for tuning as it gives 22 degree cam movement and 22 degree intake cam phase position is good for improving volumetric efficiency down low: even with the intake valve opening "overlapped" into the exhaust cycle, the earlier closure nets improvement in airflow. But only to a point. Past approx. 4800rpm the zero position is more effective.

[@dujuanjohnson5025]

@@matk22 I think it’s a interesting topic when there’s power to made down low especially when you lose torque from bigger cams, bigger turbo, large port heads etc.

[@matk22]

@@dujuanjohnson5025 yes but it's already been discussed on KZbin and on forums. Its nothing special. Just use vvt to switch at a set rpm. Nothing too it since it's a on off switch there's no variable timing between the set 0 and 22 degree

[@alexfrancis7509]

Yea boys I got a question should I go single groove valves or triple groove valves so confused thanks fellas

[@turbo16vgti61]

What do you consider good exhaust valves? Supertech stainless good? I'm building a 350whp setup gtx2860r

[@COMotorsports]

Inconel

[@turbo16vgti61]

@@COMotorsports ya... I already bought the stainless nitrate supertech..... hope they work

[@jamesatkinson120]

What about exhaust runner diameter on a tube manifold have you had much experience with 1.1/4” vs 1.5” what’s your opinion

[@jungillestt02]

I have a 02 Audi TT awp engine. I was looking at a stroker kit, because I wanted to change the rods, thought might as well change it all once in there. Is a stroker kit for these a good route to take?

[@motheomothei]

Can a BAM sub assembly work on bjx?

[@dubCanuck1]

What block does Clayton have under his AEB head? Just planning for my second 18T build and have a second AEB head.

[@COMotorsports]

AWP

[@kaneferguson-t5c]

Was wondering what 1.8t power mods would be best for the first upgrades?

[@COMotorsports]

tune it.

[@1.8t5spd]

Don't pre-facelift A4's like the AEB 1.8t have smaller (flow less) injectors?

[@mattrico1633]

Hey Dave and Clayton I have put in a k04 from apr to my 1.8 mk4 jetta. I want to make more power out of it (around 325-350hp). Will that turbo hold or am I going to need to look into something different?

[@matk22]

A stock k04 even on an engine with the best intake and exhaust won't make more than 300. Mine has a 2.5" intercooler pipe work. Huge fmic them porter exhaust and 3 inch turbo back. And makes 284bhp Your turbo limited at that power. The turbo just runs outta puff

[@COMotorsports]

Buy a different turbo

[@CliffB5A4]

Try a GT2871r, it will do that easy.

[@prim3time3]

Question?! 2.2 5cyl na turbo build or to build a 1.8t?

[@COMotorsports]

2.5 turbo