6.0knightmare

Hey all - I've been trolling these forums for awhile and finally thinking of starting my build. It will be a stock LQ4 with twins. I have a friend that sold me two on3 performance 76mm's for dirt cheap...

The question is how will these do on a 6.0? they have a 65mm exhaust side so I figured spool time shouldn't be extremely awful due to the small exhaust turbine.. i'll be running a t56 with a 3.42 gear if that helps any

DavidPHumes

iTrader: (1)

You will have more power than you know what to do with using that T56. IMO they're too big for a 6.0 but that's just my opinion. I think 6262 sized turbos would be a better fit, or even twin T70s. I mean it will work... and it will scream, but lag is going to be an issue.

canada4g63

Twin 76's have made over 800whp.

c0ncEpT

iTrader: (4)

Twin 76's have made double that.

9sectruck

iTrader: (9)

if your set on twins sell and make some money off your buddy and go down to 60isg mm turbos or go lil bigger on a single

6.0knightmare

When would the 76's spool? this is going to be a high speed highway car. its an 07 vette that threw a rod so i went with an lq4. i would much rather do a big single but i don't know where to put it...

i was thinking fender mounting the twins

TurboS10

iTrader: (12)

Twin 61's will make more power than a stock head will hold and aren't too expensive.
-they are good for 1300 to 1400 fwhp-
A 62-65mm turbine is what you'll want with a 61-67 compressor.

00MaroonZ28

iTrader: (3)

This. No point running twins when a big single is all you need.

6.0knightmare

I'd rather go single but I dont know of a way to keep A/C and heat in a c6 with a single. I guess ill sell off these and try to get some smaller twins... If anyone has a suggestion on how to fit a single let me know haha

qqwqeqwrqwqtq

Well, that's if you don't care about lag/response.

Timmy2Stage

iTrader: (56)

A 60-62mm compressor and a 65-67mm turbine would be perfect. All the boost will be in by 35-3800rpm.

SVTconfused

this...

00MaroonZ28

iTrader: (3)

If he's looking to drag race then that's not a huge deal when you can spool it up on the line. I know a ton of guys that were running twins then went to a single and picked up huge ET by running just a single big turbo.

qqwqeqwrqwqtq

It's fine at the dragstrip sure, I didn't realize the op was just building a race car that was not going to be driven on the street.

As for your second statement, if you are trying to imply that a single is more capable than twins you would be incorrect. Show me any single turbo and I'll show you twins that can match the power and have faster response.

2000RATA

This^^^. I never could get my head around why so many guys here are hung up on a single?

Timmy2Stage

iTrader: (56)

People are stuck on singles because they have no experience with twin's.

The fastest street car in the world is running a twin turbo setup.

98blackbirdta

iTrader: (7)

I bet you will turn those 76s just fine. You have them already why not run them??

boostedsl2

single is more efficient and doesn't usually cost as much. the more complexity to a system, the more that can go wrong. most guys don't really take that into account until something breaks.

Depending on your power level i would think one 76 would be fine. Seems like that turbine might be a little small though. twin 76's seem like they'd be pretty sluggish, although you do have smaller turbine wheels. think 35r's run a 64mm turbine, so it might not be too bad.

Not sure about fastest street cars running twins, but ok....

831jd

iTrader: (3)

What about twin on3 70's would that be better. How much power u looking for?

Timmy2Stage

iTrader: (56)

Larry Larson. Twin Turbo BBC running twin 88mm precision turbos.

Car has gone 6.9's @ 209mph. Driven to the track and back.