cjordan

iTrader: (1)

I am starting a new build, I am looking for a strong 1/4 mile car, but something that is decent on the street as well. Race gas power level around 700whp and 400 whp on pump gas.

I currently am running a GT35R on a 84.5mm B16, I have been looking at the GT4294R and the Borg Warner S366. I am looking for opinions and personal experience with both. I will be using a Full Race Top Mount Manifold, also looking for opinions on divided or non divided manifolds with using these turbos.

It will be going on a 85mm AEBS sleeved LS Block with a B16 Head. I am running ITR Cams currently, is it worthwhile to upgrade to Skunk 2 Pro 2's??

chimmike

a GT40R will make 700whp. But for a street car with only 400whp daily, will have some MAJOR lag. for comparison, I drove a 500awhp GT-R with a GT40R and the thing didn't start to spool until over 4000rpm, didn't hit full boost until 5000-5500.

cjordan

iTrader: (1)

Thanks man I hadn't even looked at a 40R really, any other turbos that I might want to look at??

chimmike

I don't know enough about the bullseye to give info on 'em, but from what I've read they're a great option. I'm sure The Shodan will post in here and give you more useful info.

boostedcivicsir

the 366 is nasty, i have no personal exp with it.

a friend has a 35r on an 81mm gsr, made 650 on race gas. the car is nersty on the street.

my car made 710 on c16, and never saw the street except for 3 years ago when i drove it to get the cage installed with the old b16 in it and a t3t67h0.

with the little motor it was light switch power. but with the gsr it seems to not stop pulling.

cjordan

iTrader: (1)

thanks, anymore info or experience out there? Will a t4/t67 hit 700whp on a 85mm LS?? What would spool time be like??

cjordan

iTrader: (1)

I was just looking on Full Race's website and the T4/T67 looks like it will do what I want. Anybody have any experience with this turbo? What A/R should I get a .84 or 1.00 ?

TheShodan

iTrader: (14)

I'd put the T4 S366 over the T4/T67 any day because of the lower IATs that allow for a bit more boost, with less work to make 700whp. These are a Journal bearing setup, and there is no need to try to hybridize a ball-bearing cartridge for the response and power that this turbo has. A -4AN line is required to run this turbocharger, and no oil feed restrictors are used. They are a little more expensive than the T67, but you get a LOT of turbo for the money, honestly with this model.

Here. This is what the standard S366 looks like in polish housing:






These are from Tepid1's setup. Most of the pictures of the S366 are custom high heat coated.








Both T3 and T4 models use an 8" diameter anti-surge compressor cover with a 4" inlet. Fitment is best with Top mount manifolds, or Kooks-style (Ramhorns) that have a bit extra room.






The T4 model uses a 80.3mm exhaust wheel in a T4 divided housing, which is larger than the the P-trim model used in the T67 version. This helps with top end power.

Because of this, the T4 model needs to have a special V-band clamp for the downpipe (it is 3.25" as opposed to just 3"). The T3 model can come with the same exhaust wheel in a .70A/R 3" vband turbine housing.




Notice how the compressor wheel is an extended tip compared to the Garrett models




Here's an example of an extended tip compressor wheel vs a standard Garrett wheel. BW on the left, Garrett on the right. This is most prevelant in the larger models.


Tepid1's dyno at about 14psi


Video of the 14psi run





Modified by TheShodan at 8:58 AM 9/2/2008