is there a pre-built kit available to twin-turbocharge an LS1 motor ??.....I am willing to build one from scratch and do all the custom programming necessary but a kit would be much simpler and more complete (this is a long-term project....not a tomorrow thing)

I am also looking for specifics on how much intercooled boost you can run comfortably on a street-driven 6.0 that has to live a long productive trailer-towing life

I realize that a supercharger is probably an easier way to go but I have always been a fan of dual small turbochargers on a large displacement motor (no lag and decent boost at reasonable rpm's)

TIA.....Al

 

I don't know if they sell a kit, but a few years back Lingenfelter put twins on a truck just like yours (except they used a 346 LS1 instead of the 6.0). John ran 12.93 with it, on 6lbs. of boost.

I still have the Truck Trend magazine article about it. I can try to scan it and email it to you if you would like.

Lingenfelter has also put twins in a few Escalades & EXT's recently. There is a 427 Twin Turbo EXT running around somewhere.

 

Here is a link to a twin turbo setup.

 

Neil 6.0.....please scan the article if you get a chance.....send it to yelostoner@earthlink.net

2ksleeper....I have seeen that one before...but it is not slated for production nor is the power output what it should be from a twin-turbo LS1 (300 RWHP and 400 RWTQ...not very impressive)...thank you for the link though

 

hey Neil, could you list my name on the e-mail too? It is rcleary23@hotmail.com I would like to see what they did on that truck. Thanks man

 

i am going to build my own set up someday, not for awhile though, thinking about a couple of big units like 2 t60's or larger. i would say you can get away with an intercooled 8psi on a 6.0 for a very long time, running pump gas even(good pump gas). if your towing a alot you might want to set them at 6psi just to make sure it will last.

you may need to beef up that tranny at some point. a stock 4l60e wouldn't last at all but that 4l80e just might and if it let go it can be built to take ALOT of power.

i have been doing some research on the subject and it looks like it would be easiest to just build your own set up. you can have an intercooler made to any specs you want. i plan on making my own headers out of stainless but just tacking them together and having a pro weld them up nice. you can buy the turbos, flanges, mandrel bent tubing, aluminum tubing, silicone couplings, wastegates, blowoff valeves, oil lines and intercoolers. i see moving the battery and ECM, running an electric fan. puting an air filter where the batery was and where the stock one is, each turbo just inside the air filters, 2 2-1/2" feed lines down to a giant intercooler with a shared center 3"dump. that runs back up to the throttle body. not sure where the exhaust will run, plug wires and coil packes may have to be modified.

the best part about the whole thing would be that no one else is doing it other than lingerfilder and i dont count his $100k set up's. probably be 6months before i start gathering parts and who knows how long to get it done. maybe you can get a cool custom intercooeler set up figured out and i can just copy you. one place makes a cad drawing first and then build the unit so they could reproduce one prety easialy.

 

parish8...that was my idea originally (to build my own setup)but was put off by a lack of knowledge on the subject...can you answer a couple of questions that may be able to overcome that barrier ??

1. are wastegates adjustable at will for desired boost pressure?? ie: 6-10 psi
2. why would you use large turbos as opposed to small ones??...don't the larger ones create more lag at low rpm's
3. what size intercooler is required for a 6-8 psi twin-turbo setup

as for the headers...since exhaust restriction is a non-issue with turbcharging skip the expensive stainless headers and just reverse the stock mainfolds and install them upside-down (the outlet now points up and toward the front of the motor), this also makes for a good place to mount the turbos....it puts them near the front of the motor in a relatively open area to aid in plumbing them to the intercooler

if I do this in the near future I will keep you informed and anything that works for me you are free to copy

Al

 

Hey Parish8 and even Yelo if you decide to go this route, check out www.burnsstainless.com They have everything you can imagine in tubes. They make awesome turbo collectors. I just ordered some nice aluminum from them Honestly, I think a turbo would be easy to set up on a truck application, but the tuning You might have to be looking for a FAST management system which is as much as a turbo.

Good Luck guys. Ryan

 

Parish.... a pair of Garrett T3's would feed a 6.0 at about 6-8 psi with the right wastegates......correct??

Bentley is using twin T3's on it's 6.75 liter V8 Arnage and making around 11 psi so I should be able to do the same thing only at lower boost levels with the T3's on my 6.0 right??

the reason I ask is that I can get a complete pair of Garrett T3's for around $150...all I will have to do is change the wastegates to the units that I want....and after buying the turbos the rest of it is fairly cheap and easy

 

I didn't forget about you guys, just been real busy with other stuff. Check your mail, I hope it goes thru, the file is a little over 1MB.