HOW TO: CHEAP, DIY TWIN TURBO LS KIT (GT3582s)

BOOST BUILT-LOW BUCK, TWIN TURBO LS KIT-STEP BY STEP, TIL IT RUNS! EVER WONDERED HOW TO BUILD A DIY LS TURBO KIT? HERE'S HOW! USING STOCK TRUCK MANIFOLDS, HERE IS HOW I BUILT A TWIN TURBO KIT TO RUN ON A 4.8L. THE KIT WAS DESIGNED TO ACCEPT T3-T6 TURBOS, SO YOU CAN INSTALL WHAT SIZE YOU NEED. THIS 4.8L WAS RUN WITH GT3582s. CHECK IT OUT.

[@weallsobad7320]

Greetings from Oshawa Canada. Where we just handed America the gold medal in the World Jr hockey Championship! Congrats America. You guys earned it! Losing still sucked. But YOU guys took advantage!

[@richardholdener1727]

I hope it was a good game-the boys up north are tough to beat

[@TwoLotus2]

Hockey-- is that like shuffleboard?

[@KreatorOfDeath1985]

Exactly the video I needed today. I finally found a 6.0 today! The chevelle has a heart now!

[@christopherH402]

Are you doing any engine work to the 6.0 or is it just stock?

[@KreatorOfDeath1985]

@@christopherH402 It's going to be a 404 stroker with a t56 6 speed.

[@ricomarshall4318]

@@KreatorOfDeath1985 qqq1111111

[@KreatorOfDeath1985]

@@joeknowski675 6.0 will make more power everywhere. So no not true

[@themrjones]

Bucs playoff game on, shhhh Richard's building a twin turbo kit.

[@tfriesen3866]

Richard building stuff is more important than a playoff game.

[@aaronkeller8269]

I've had twin VS GT3582s in my foxbody street car for about 4 years now. First with a 5.3 and now with an LFA (aluminum 6.0) with similar routing (truck manifolds as well). These have been great. They light off fast and make good power with low boost. With the 5.3, it made 600whp on 10psi and 770whp on 15psi (through a t56 and full 2.5" exhaust including flowmaster mufflers). You actually answered a few questions for me while I was brainstorming the idea on Sloppy Mechanics. Cool to see more people using these.

[@smokinboostedduece1170]

I cant believe your doing this build.I literally just bought these turbos and im putting them on my 4.8 in my chevelle.I am so wanting to see you test this setup at alittle bit of boost.Will be watching close for a update on this build...

[@Censord]

4.8? My 69 wouldn't accept anything less then a 6.0

[@trentdawg2832]

@@Censord good for you.....that big 69 needs a 4" bore ....a lil 4.8 or 5.3 would just be working to damn hard......now you need a supercharger or some turbos. ....me myself I'm a supercharger guy. Gotta lsa supercharger on my built 370" with 64cc ls3 heads for 11.2:1 compression and a 2.45" pulley for roughly 15lbs boost although I've seen upto 19lbs on some data logs, that's in a '74 nova converted to a '71. .....but man I must admit my favorite chevelles are the '68/'69s........rolling works of art

[@squarepegroundhole132]

I've said it before but I really appreciate all you do. Your videos are awesome

[@Levibetz]

Hey Richard, here's an idea for some easy testing. Crush bent vs. mandrel bent exhaust! Build two exhausts with some bends like for an axle etc, one with mandrel bends, one with crush bends. Run it on some sort of NA combo, or NA and turbo if you're feeling spicy! I have a feeling the crush bends would be almost no difference. On my sloppy turbo Subaru I used a tailpipe section from a silverado to get lots of bends and pipe for very little money into my hotside.

[@vantharasc9967]

I would kill to have this man guide me through rebuilding the engine in my LS1 02 Corvette. So much knowledge and I want to absorb it all.

[@johnhazel5385]

Thankyou! this is exactly what I need to guide me in putting a pair of GT45 on a 454!

[@smp3745]

Dude just selling out all the good secrets wtf. Took us 10+ years to figure this knowledge out and you just giving it away for free to a bunch of idiots. Thanks

[@richardholdener1727]

took you 10 years to figure out using cheap turbos?

[@orangetruckman]

Love it 🤣 Can we get someone to donate an exhaust pipe bender for Richard?!?! It’d save him time and provide more videos for us 🤗

[@jinglingbabygarage7030]

You crack me up😂. You look like you’re having so much fun!

[@davidsabyan2481]

Thank you Richard for detailing the twin build. Really looking forward to the comparison to boost, hp and backpressure to the singles.

[@jarebb1]

Really cool stuff your doing on the channel. I really like the budget turbo tests. It would interesting to try to replicate a rear mount turbo setup and compare to a turbo right off the manifold just to show the difference in boost response and torque curves.

[@richardholdener1727]

that is tonite

[@calvinevans8305]

Very interesting, Richard. Thank you for doing this.

[@tptrsn]

HELL. YES. RICHARD!! This video helps illustrate some of the grind you go through to do the testing. Still nothing like the grind required to test a dozen cams N/A and boosted, but still..

[@Synthfidel]

Richard, you rock, dude! This video and the 5 turbo test, have both been watched, & rewatched! Fabulous work, sir, please keep ‘em coming. If you could dive deeper into wastegates, sizing, and electronic controllers, in an upcoming video, that would be great. Thanks!

[@themrjones]

@1:00 you got my 4 year old dancing, doo doo doo doo do do.

[@richardholdener1727]

YES!

[@Hogiewan1]

Now I can make my own super Ritchie twin turbo setup! All joking aside, thanks for the great videos. We truly enjoy them!

[@182QKFTW]

Man, your sit it is toooo underated

[@johnboy9769]

Favorite channel for sure.

[@user-cj8pz2gp2m]

Wonderful work from the most amazing teacher 🙏

[@donjuan8124]

Making it look easy. Guess I’m gonna give it a go an find out

[@3800TURBO]

Be a wild little combo. Twin GT35s on our 3800 took us to 8s@160mph pretty easily. Great vid once again Richard. Band for bucks.

[@harryharrison483]

My favourite KZbinr, high from OZ ( Australia )😀

[@Troy427Troy]

Dude, this was an awesome video. I just subscribed to your channel. It's the first. Channel I have ever subscribed to. Thank you.

[@richardholdener1727]

Welcome aboard!

[@dreece2000]

You set the standard for decency! Thank you

[@Follett2121]

Awesome video! Love the hands on videos

[@richardscarlett7942]

@ 11:31 it looks like a mastadon. Those are some huge tack welds , should have just kept going at that point LOL

[@lucasmullins5100]

This video was awesome, and makes me wanna Twin Turbo everything

[@dennisroberts2857]

Always enjoy watching Richard's setups there simple and easy gives you good ideas how to make ur own setup for your truck or car.

[@Itsme-mx5tl]

Only needs to be higher unless you want to run a scavenge pump....great video

[@superior3384]

Thank you. This video was very informative. I might try installing a twin set up on my truck

[@flux_core_fx]

Hi Richard, maybe a video idea.. turbo "secondary" length? Would that affect torque output? Thanks for all the work you do😊

[@richardholdener1727]

what is secondary length?

[@flux_core_fx]

@@richardholdener1727 I made it up haha. I was thinking the exhaust length past the turbine. Supposedly there is power to be had by adding secondary length past the collector NA, I was wondering if there was a similar effect with turbos?

[@richardholdener1727]

you just want it big and free flowing as possible after the turbo

[@flux_core_fx]

@@richardholdener1727 thanks Richard! Best wishes

[@GreatLakesLogger]

For some stupid reason gm used different flanges side to side. Ok so I didn't need to say that, but hey, I hear more comments help the algorithm so here's my free gift Richard😃

[@timothybayliss6680]

There is something like 7 different styles of exhaust manifolds for the gen3 engines. Camaro corvette truck tbss all have different ones. I don't know about The gto or hd trucks. The gen4 engines have a different head flange pattern so there is even more.

[@GreatLakesLogger]

@@timothybayliss6680 what socks is when you buy cheap ebay shorty headers and they put the flange on upside down

[@richardholdener1727]

there are a lot

[@sinistersilverado965]

been waiting for this

[@BearFulmer]

fun to watch and catch those nuggets of knowledge, I just got my 65 wagon swapped 4.8/4l80e running yesterday, now to pull it out and drop in the turbo engine (ring gapped/cammed 6.0)

[@BobHoehn218]

What's the Part# for your DIY Twin Turbo kit? LOL

[@martinwieczorek8208]

I would like to see him do a sick threw carberated twin turbo and compare that to a blow threw design just for something different

[@brianmiller1149]

I can’t wait for the next video!!

[@mrman880]

Great video! We love you Richard!!!

[@richardholdener1727]

Thanks so much!

[@kylemilligan752]

Mr Holdener, i have an idea for a test that would generate some interesting data. Use a centrifugal blower. Make a dyno baseline. Start restricting the exhaust, measuring exhaust backpressure, and it's effect on output. Start with 0 backpressure, then work up to a 3X backpressure. We could learn the effects of high backpressure in turbo motors!!!!😁

[@richardholdener1727]

that doesn't translate directly over to turbos, but we could see what change back pressure has on blowers

[@fascistpedant758]

That's what I was thinking yesterday too, but you could also just throttle the exhaust on a turbo set-up.

[@kylemilligan752]

My thought process is that a centrifugal blower keeps a fixed ratio. Restricting the exhaust up to 3 times boost/manifold pressure should show some data that would help to correlate the effects of pressure differential boost/backpressure in turbo motors. The effects on total output, and required changes in ignition timing as backpressure goes up😀

[@kylemilligan752]

As backpressure goes up from the restricted exhaust we should see the intake pressure rise, and the engine getting more pissed off, and taking less ignition timing before spark knock.

[@kylemilligan752]

@@richardholdener1727 I am certain excessive exhaust pressure leads to a higher "gauge" inlet pressure on a supercharged deal. My question is how higher exhaust pressures effect the tune-up and potential output. The fixed ratio centrifugal should start getting pissed, and tolerate less timing as ex pressure goes up from 0 to 3x

[@mattmanske4651]

I like how excited you get, you are a true gearhead my friend I'm the same way, when am I going to be an Oldsmobile motor?

[@johnwehunt4305]

Love you brother Richard. Ready to see it. Are these the Maxpeeding turbos?

[@Grosflam]

Pure awesomeness, so much info.

[@james10739]

I've been planning on doing a single on my suburban for a while I need to go thru the motor first it had all the blow by before I parked it and a 4l80e

[@randallmason9687]

This is the video I have ben waiting for. Trying to decide between a single, or twins on My 02 Mustang ? V6 daily driver.

[@kylemilligan752]

NO SQUIRRELS HERE😁

[@yolofullsend]

I run a pair of these.. looking forward to seeing how they compare to a big single.

[@bcbloc02]

I feel like the twins will win.

[@supernova5end]

I would like to see the limits of the stock manifolds on twins vs the stainless ones with the same turbos etc.

[@supernova5end]

Also did you do a video of logs vs manifolds vs stainless vs shorty/mid-length/long tube headers for a single and twin set up?

[@tumbleweed8231]

@@supernova5end Stock manifolds will make 2k easy.

[@Stevesbe]

Living the life

[@curtis4u2]

Love your vids, very informative.

[@james10739]

That's a pretty cool looking 2 to 1 intercooler

[@johnrawls8584]

Thank you so much for your videos very informative and helpful. Trying this on my gen3 5.3 truck build

[@dbjxxl4822]

I'd be curious to see if there's any change whatsoever adding a crossover pipe between the two exhaust pipes that connect the manifolds to turbos.

[@mvpolo2k3]

One side is the flat flange, one side is the ball and socket. every 99-07 is this way, and most past that are the same design. ive never seen one that uses either 2 flat flanges or 2 ball and sockets, they are always one and one.

[@masentrippin903]

That’s a badass set up for the dyno 😂

[@necrofool]

Dang, I had a single garrett gt35 too, just needed another one. Went with a single 7875 instead. Curious to see the results

[@trondvidardalseng894]

Very interesting video. What if you turned those exhaust manifolds up side down and then made additional pipes and welded t 3 flanges on? How would that work? Just less tubing.

[@richardholdener1727]

would work fine

[@fortnoxz71]

** Richard, do you use the maF sensor in this setup at all? or are you just using a maP setup? I wish you would go more detail on how you setup the computer on these setups.. thanks

[@richardholdener1727]

the Holley does not use a MAF-its speed desnity

[@ohhthepatpat]

Turbos! 🔥

[@akinshok]

What a great guy! Spoon-feeding us goombas.. 😂

[@petepalazzolo7849]

Can you do a 6.0 ls with twin T35s vs T45s turbos

[@GreatLakesLogger]

Think there's nothing better than a turbo?????? Wrong! Two is always better than one.

[@Itsme-mx5tl]

Sometimes, it's like having two girlfriends..... could run into some complications.

[@Prestiged_peck]

And four is better than 2

[@madmod]

I think big singles still outperform two smaller ones as far as maximum power potential. In drag racing where your leaving under boost either on a 2step or trans break, you are not worried about boost response of a laggy big single.

[@GreatLakesLogger]

@@madmod in very fast cars you are, some of the low 4 high 3 second (1/8th mile) cars are ramping boost as quickly as possible and if they use too big a turbo it can't accelerate fast enough to bring boost in as quick as they want it. Granted, 99% of us will never be at that level, but its technically possible

[@Prestiged_peck]

@@madmod I mean idek what you're talking about I street my car, and I plan to street her till she's in the big wrecking yard in the sky, which is why I'm going for the mod motor world record with a twincharge setup (think twins feeding a whipple/kenne bell/vmp/whoever I can make fit cause I'm using B heads.)

[@bryanphipps9131]

Got it 4.8. Maybe I should wait til the end of the video. Lol

[@crxh2dvtec]

My 08 'Burban 2500 is about to go a weee bit faster. Don't tell the wife.

[@richardholdener1727]

your secret is safe

[@chomin3025]

@@richardholdener1727 Speed Secret

[@rayjon237]

Look at the sloppy mechanics 2500

[@BrianS2464]

I don’t know about Tom Nelson. Don’t always sound like he knows what’s what. These videos are the best though.

[@kerrygatling663]

Richard interesting videos you post, I was referred from you of the forums I'm in.i have a question. What your thoughts on a set of are small frame 88's /75ar housing on a 500 " motor?

[@richardholdener1727]

ask a question without the word thoughts in it

[@babbitbearings590]

Another great video... just a comment: The stock 2010 Camaro manifolds are also fairly cheap since many people swap in headers... and they are much easier to fit between the front frame rails, they hug much closer to the side of the block.

[@richardholdener1727]

NICE

[@antwain7942]

Richard. Please tell me what video you used the tfs205 heads on. I've looked threw all my mags. I think I remember you mentioning them in one of your videos also but can't find it.

[@richardholdener1727]

used them lots-see the 4.8l or 5.3l power recipes

[@dino8402]

I understand this question is different... but why don’t companies ceramic coat the exhaust housing on turbos... to control heat...

[@chomin3025]

It's an option but only for the high $ turbos, like garrets

[@Prestiged_peck]

@@chomin3025 why stop at just the housing? Do the whole hot side! Manifolds and all!

[@besearchingforwisdom6267]

Why does your goofy mystery teaser at the end... work on me?

[@richardholdener1727]

me too

[@tome3405]

Ring their necks Richard, ive got the billet gt3582r twins on a 5.7 ls

[@benzermeno1850]

Question 🙋‍♂️. I have a new stock LQ9 6.0 with LS3 heads. It’s a new crate engine from GM. What size turbo would you recommend I start my Selection process. Or twin set up. I’m trying to stay under 10psi. Thanks

[@richardholdener1727]

s475 or vs racing 7875

[@firebry23]

Its it bad to mount the waste gates on the bend like that. The exhaust is blowing straight into it. Wouldn't it be better mounted on the side out of direct flow?

[@richardholdener1727]

it works best in the direction of exhaust flow

[@tptrsn]

That's actually the preferred way/place to mount wastegates. It's referred to as "wastegate priority." It helps ensure the wastegates are able to provide good control over the boost level.

[@daveb1870]

Great video, been bouncing back and forth over single or twin, still havent made mind up yet. That exhaust stuff wasnt galvanized was it?

[@richardholdener1727]

they both work

[@maxstatarcos7584]

What’s this intercooler? brand? size?... any info where do i get it?

[@rdub79lx]

I just installed one and it's a tank! 35 lbs at least. The mounts could be welded better, but overall it's a nice intercooler for $400.

[@richardholdener1727]

CXRACING

[@dennisrobinson8008]

Richard when are twins worth it? It seems like for most situations at least under 1000hp, where you could get it done with twins, there is a single larger turbo that could get the job done better. You showed alot of dynos where the single had quicker response and more power than the duals. It seems now that from the data you provided that duals and more come into play where you need excess power levels. We had always assumed two smaller turbos would provide better response, but your dynos show differently.

[@richardholdener1727]

the tests have been specific turbos vs specific turbos-not simply twin vs single

[@dennisrobinson8008]

@@richardholdener1727 True. I dont think you where trying to display a trend but its hard not to notice. Most of us assumed two smaller turbos will usually have a better response and more power than a larger single.

[@gapdragon01]

Where can I find out more about your intercooler? I'm very interested to know how it combine the two streams of pressurized air.

[@richardholdener1727]

search cx racing

[@gapdragon01]

@@richardholdener1727 I know very little about building cars or engines, but I always thought turbos and superchargers were crazy cool! Thanks!!

[@ardelljenks6579]

The P 38 had a vertical shaft turbo charger sitting behind each engine how hard is it to mount modern turbo chargers that way?

[@B0RN2RACE100]

Yeah but they were huge and axial flow designed to be placed in that way for negative/positive Gs, most car turbos would not last long without that oil draining aided by gravity.

[@richardholdener1727]

wasn't that a supercharger?

[@fascistpedant758]

Oil drainage might be a problem.

[@B0RN2RACE100]

@@richardholdener1727 it had a centrifugal supercharger, but with altitude it would lose power, unlike the Merlin and German counter parts, it did not have a variable speed control because the army wanted Allison to focus on “turbine driven” superchargers, but it was too big to be placed in the P51, so they just used the Merlin 1650, but for the p38 they had space in the back of the engines and used the “turbos” to supply the extra pressure difference with the altitude. The engineered called the first p38s sent to Euro with out the turbine as “castrated P38s”

[@B0RN2RACE100]

kzbin.info/door/ynGrIaI5vsJQgHJAIp9oSg this guy has a lot of good info and goes into great details, under rated channel for aircraft engines

[@johnl7634]

Hey buddy, I’ve got a 5.3 gen3 stock Ls with a monster trans for 600+hp with Holley term x max and trans control. If you know could you tell me how to get the torque converter clutch control (tcc) to function in this setup? I’ve spent several hrs trying to reach a Holley tech with no luck. Thanks if you can for the help.

[@richardholdener1727]

I'm not the guy for that-sorry

[@arayalynn03]

In the Transmission GCF there is a place for it. If you loaded the correct configuration id inagine it would be enabled. Pull your tune and load it into your labtop. Open the software and look at your setting in the transmission ICF. Lots of good remote tuners out there I used TCtuned and then learned what I needed to make my Tremec work

[@larrythomas3624]

Have you ever done a dynamometer test comparing different weight engine oils? The owner of the machine shop that I use is recommending that I use 15/50 in my BBC street engine. I'll take his advice, but I used to run straight 30 weight back in the day. Just wondering what effect that might have on horsepower.

[@SawmillerSmith]

I have a 2009 4.8 that could use a like boost. I like cheap. Be nice ro have an idea what it would cost

[@FatalReactionPB]

Gt3582s are usually around 400 each on eBay, intercooler is whatever fits your car and power goals, anywhere from $200-$1500. Then it's up to fuel system and piping, so anywhere from $1200 to $5k. Really depends on your fabrication skills and creativity

[@Superspeeeed]

I’m trying to do a 5.3 twin turbo I’m wondering what is the best size turbos to run that won’t be to big and cause lag which ones u think are the best to run with least lag but most performance

[@richardholdener1727]

for what power level?

[@Superspeeeed]

@@richardholdener1727 1200hp

[@Superspeeeed]

@@richardholdener1727 900-1200 hp

[@Kingcadillac816]

like see him do these then play with the tune per cylinder dial each cylinder in good see what it's actually doing per cylinder see how equal it is

[@richardholdener1727]

see the video where I compared carb to efi (batch) to efi (sequential) to efi (sequential with individual cylinder tuning)

[@datasailor8132]

OK. Now plunk that into a realistic engine compartment. I really like the concept of counter-rotating turbos, since most dual turbo builds I have seen have one fairly neat side while the other is a jumble of pipes.

[@EpicScandinavian]

Was the intercooler on the floor an adapter for the water return hose?

[@richardholdener1727]

FOR THE SINGLE TURBO

[@donpop_gxp]

Love your videos, do u think I can put one turbo on a ls4 5.3l gxp?

[@richardholdener1727]

YES-BUT YOUR TRANS WON'T LAST

[@donpop_gxp]

@@richardholdener1727 yea I was acared.of that I just got a rebuild with a small cooler imna add another ice to water cooler in truck do u think that will help or the turbo will still fry the trans?

[@mikemcc3758]

Can you run these turbos and use oil only? Or do you absolutely have to use the water side or can I just block it off? I am planning on running these on a blowthrough setup on a 5.3 ls.

[@richardholdener1727]

we didn't run the water cooled on the dyno

[@mikemcc3758]

Do you think they would be OK to run on the street without the water?

[@Takeit2kyle]

If running a twin turbo set up would it be a good idea to run either a high pressure stock volume oil pump or a high pressure high volume oil pump ?

[@richardholdener1727]

high vol pump would help

[@Takeit2kyle]

@@richardholdener1727 thanks for reply I’ll go ahead and order the 10296 oil pump then 🤟🏻

[@dynamicdopamine]

I've got a serious question to ask. I've got a 99 Z28 with a 5.3 T56 six-speed with a 12-volt Moser rear end. It's going to be a turbo car soon. Do I need to go twin turbo or single turbo it will be a street strip car

[@dynamicdopamine]

I'm actually thinking of pulling the 5-3 out of my Camaro and putting it in my wife's Cadillac CTS and if I do that it will be naturally aspirated and I will get a 6.0 for my Z28 and put a turbo on it instead of the five three. I still need to know single turbo or twin turbo

[@richardholdener1727]

either will work-that is usually packaging

[@vettster89]

What size twins do I need for my 6.0 LS to make 1000 hp?

[@richardholdener1727]

GT3582

[@ts302]

Awesome work Richard-love the twin turbo setups! Is a H-pipe between the turbos worth the effort? I'm thinking balanced exhaust pulses/pressure, the pipe would also provide additional support and a convenient location to mount the waste gates (engine compartment space permitting). What say you Richard.

[@richardholdener1727]

try it

[@ts302]

@@richardholdener1727 Brother, I live through you LOL. One day, hopefully soon. Thank you.

[@michaelmichels5168]

Will one oil return 10 an work for two gt35 or should I have two ..?

[@richardholdener1727]

we use two 5/8 or 3/4 hoses

[@canadianbabe4205]

Honestly I wanna see some junkyard turbos like some hx35s some holsets off the old 6.5s ect. Maybe some old 7.3 powerstroke turbos or some off a wrecked duramax. I think a twin turbo 4.8 with a set of hx35s with bigger exhaust housings should make 650-700hp on a $75 wrecker turbo could build a True junkyard turbo kit for $300 decapped injectors ect.

[@bjornjonsson8488]

I wold like to se this combo on a 6.0 and i wold like to know what ar those turbine housings are ?

[@vettster89]

Are those elbows, your welding, stainless or mild steel?

[@richardholdener1727]

MILD

[@bryanphipps9131]

5.3 or 4.8? Another win for the general!!!!

[@stoneroastery]

Man you dont get no burns on your head? I got scars all over for not covering my skin. Now I am older and not so tough. So I wear a hat and some long pants and shirts

[@richardholdener1727]

I wear a hat outside when running or junkyard