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

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!

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

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

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.

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

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.

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...

Man, your sit it is toooo underated

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.

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

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

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

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.

Very interesting, Richard. Thank you for doing this.

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

Wonderful work from the most amazing teacher 🙏

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 🤗

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

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

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)

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..

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

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!

Favorite channel for sure.

You set the standard for decency! Thank you

Awesome video! Love the hands on videos

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

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.

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

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.

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

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

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

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?

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

My favourite RU-vidr, high from OZ ( Australia )😀

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

Love your vids, very informative.

That's a pretty cool looking 2 to 1 intercooler

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

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

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😃

Pure awesomeness, so much info.

Great video! We love you Richard!!!

I can’t wait for the next video!!

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

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

been waiting for this

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.

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

That’s a badass set up for the dyno 😂

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

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.

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

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.

Turbos! 🔥

Living the life

i want to see the final result .is worth to doe twins or no't

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

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

Excellente'

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.

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.

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!!!!😁

Can you test out On3 performance turbo parts?

Right on

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.

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

Good video subscribed

** 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

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

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.

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

NO SQUIRRELS HERE😁

Where would I get the cooling water from for the air-water intercooler? Would you run from the radiator or a separate system altogether?

What are you using to control fuel? What would you use on a GMC Sierra 5.3L?

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?

Can you do a twin turbo gen2 lt1?

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

Do convert all the maf engines to speed density? And how much boost can the factory MAF handle

I feel like the twins will win.

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

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

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 ?

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

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

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

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.

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

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.

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

How are you welding that stainless v-band to that exhaust pipe using a mig welder. Always heard you had to tig weld stainless

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

Where you get oil feed from turbos? What size is the turbo exhaust exit pipes

Gt35 Ar.63?

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

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

Why does the turbo have to use gravity to drain back to the oil pan? Why not use the oil pressure to push the oil back to the oil pan in the case of a low mounted turbo? I want to mount a turbo under the bed of my truck. Do I have to have some sort of special return system?

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

Where can you get a pair of these gt3582 turbos that don't require water to cool them?