mike13

iTrader: (27)

What is the horsepower potential of a TC76 with a .96 turbine housing? I emailed Turbonetics and they said 700 crank horsepower because of the small compressor housing. This doesn't sound right, isn't a TC76 capable of 900-950 crank horsepower?

eviltwin_1987

iTrader: (18)

a friend of mine made 600/600 to the wheels on 10psi through a t56. 6.0, mild cam, stage 2 heads

stock48

iTrader: (17)

I've been 129mph in a 4900lbs 4x4 truck with a Tc76, .96Ar. Thats showing a tad over 800Hp based off MPH VS weight. My 4x4 truck has to be loosing 4-5 mph over a rwd car at the same weight.

mike13

iTrader: (27)

Wow that's impressive, how much boost did you need to run to make that kind of power? Also what was the spec's of the motor?

stock48

iTrader: (17)

Thanks! It's between 14-15psi. The Tc76 is done at 15psi on my combo.
-370CI, 9.2:1
-Hand ported 317's
-Isky 215 cam
-Truck manifold, and TB.

HydroStream6

iTrader: (16)

I've gone as high as 136mph on my TC76 with a .81 exhaust. This was with a 4200lbs raceweight.

I'm shooting for over 140mph on the TC76 this year with a .96

mike13

iTrader: (27)

How much boost are you running?

HydroStream6

iTrader: (16)

Probably like 16psi. Boost is irrelevent.

mike13

iTrader: (27)

It is except I noticed that you and stock48 have the same size motors except he has a different cam and ported heads and was curious at the boost difference between the two combinations to achieve your results.

HydroStream6

iTrader: (16)

His truck manifold kit most likely flows WAYYY better than my old STS kit as well. I'm going to max out this turbo this year and see what she'll do now that I did my own front mount kit.

mike13

iTrader: (27)

You went 136 on a STS rear mount?

digitalsolo

iTrader: (24)

TC76/.96AR here, shooting for 700-725 RWHP through a 6 speed. 347" LS1, big heads, CheaTR cam, pump gas + meth.

Hopefully my 2900 lbs race weight will get me close to some of the excellent times posted here.

mike13

iTrader: (27)

sounds cool, 700rwhp & 2900lbs.

Photochop

iTrader: (74)

Should be pretty easily attainable. I'm at a lil over 600rwhp thru a 6 speed with junk stock 853s, stock ls1 intake, and an ittybitty t70. I'd love to put a good set of heads on this thing, ls6 intake and a TC76 of the same specs...one of these days.

HydroStream6

iTrader: (16)

Yep all my track times are from the STS rear mount, stock STS piping. Best ET was 10.4@134mph, best mph 136.

Hoping to better those by about 6-8 10ths this season after doing my own front mount kit.

ZL1Killa

iTrader: (17)

i just got my setup done, ls6 heads, fast 90 intake, forged ls1, 10:1 compression, t56 built, 12 bolt w/3.42 with tc76. running 12lbs, don't even know what it will make nor have I put enough miles on it to dyno....still breaking in.

stock48

iTrader: (17)

My kit is a log manifold, completly different than the truck manifold F body kits. That was back when I had the smaller 2.5" log.

dreamls1

iTrader: (25)

I made 900 crank hp on a stock block @ 15 psi and 680rwhp through a m6 on a mustang dyno at 10psi

oh and whole turbo kit is for sale

6speediroc

iTrader: (5)

What difference would a 1.15 vs 0.96 AR housing make on a TC76 on a 370ci?
Spool time?
RPM difference?
HP capability?

Johnv

Should give much better top end, I had a .96 on my 383 and it would fall over around 5k rpm, went to a 1.32 ar, spools dam ne'er as fast and pulls hard to the limiter 6700 rpm.