Help me build it(LY6 turbo set up)
 

I’m pretty new to this stuff and the LS series engines so I need some help. What would you guys do if you were me? I have a 2008 LY6/4L80E that’s going into an 87 grand national. Plans for the car is going to be mainly street driven, not so much a weekend warrior but something I can get in and drive anywhere and not be worried about a hopped up race car that going to be a pain to drive.

I’m going to most likely build my own headers or may just use the truck manifold turned forward. So here’s what I need help with. What would you guys recommend for a turbo, BOV, fuel system ect. I won’t do the turbo right away I want to get the motor in and make sure everything runs good and then go from there.

Any and all help is appreciated!:chug:

i plan on doing samething.. the ly6 is already in my chevelle running..just saving up for turbo turbo stuff... i plan on 60lb injectors.. already have a single walbro 255..might put in double.. stock ls3 rails.. for fuel system.. or stock truck ones will work fine. im wanting a nic 76 mm or 88mm turbo..88 might be tad big.. owell.. i already have a 44mm wastegate from my last turbo 5.3.. i plan on doing a log type manifold.. keep driver side stock manifold on.. routing it into a log custom made on passenger side. for hot side..cleaner look.. i wanna boost the stock cam vvt.. but i dont kno bout the vvt springs..somewhere i read that there made just for the vvt motor.. and if u boost a motor u have to upgrade springs..and that would mess with vvt is what im thinking..i could be wrong.. but i already have a ls3 cam im probly going to stick in there when im ready to boost it..

Learn to tune

Stock manifolds
LS6 springs or PAC 1218 springs
Aftermarket pushrods
70-76mm or 60-1 twins
Turbo timer or water cooled CHRA
FP gauge in dash
WB o2
Single walbro will depend on boost/HP level.
For a single, plan on replacing it every few years as a maintenance item.

A/R will depend on how much boost you plan on.
65mm for twins, 68mm for single

I've been checking your build it's looking pretty good.

I'm going to run a 255 pump, and probably a T76 turbo, not sure about the BOV.

Was hoping someone would help me out with what they would build or what components to use

def 255 pump,, t-76 will be fine.. turbonetics would be nice if affordable for u.. certinly not for me.. blow offs im using cheap ebay ones 2 of them,, 30 bucks a pop.. work fine. depends on how much money u want to spend..

Like most people that don't have alot of money i want to be on the cheap as much as possible. I won't go cheap on a good turbo though i think that's going to be the biggest $$$ of this build for sure. The turbo's probably going to cost more then the engine and tranny though :eyes: I'm sure the turbo's one of those "you get what you pay for" deals.

Somebody has to have a some input on a decent set up.

Come on guys help me out:bang:

it's not a LSX build but I put a 62-1 turbonetics turbo on my 6.8L V10 Ford Excursion. It was installed the same way chevellepowered plans on doing his turbo. I had a Snyapse 50mm WG, single 255 pump, 39lb cobra injectors. My tuner said the way the numbers were coming up with the maf redings and injector PW/DC compaired to the lightnings he tuned It should have been making around 500WHP with 8lb I was only turning it to 5000rpm though. Here is a couple nice Youtube videos.

http://www.youtube.com/watch?v=G7oObDUkY-A

http://www.youtube.com/watch?v=eFCC-hDlBz8&NR=1

The biggest issue is i'm not sure what size turbo to run. I got a feeling i'm going to run a 76 trim turbo

You want at least a 76mm. Preferably with a 75mm S turbine.
The 68mm turbine will be insta boost.
You have room for a BW S400-80mm which will give you more turbine options.

:huh:

Other then knowing how a turbo works i don't know much about different company models (garret, turonetics, presicion) I know the 76MM is pretty common from what i read on here. Looking on Ebay for varying price looks like you can spend any where from 500 to 2K. Being that it's going into a grand national as far as the I/C set up i'm going to order an aftermarket set up with the I/C and piping so that much of it should bolt up.