jm93rx7

iTrader: (7)

Master Power Super T 70 with .68 A/R Turbine Housing for
Is that .68 too small for a ported S5 TII?

RoninRX7

depends on how much boost you want to run, and where you want the boost to hit

RotaryEvolution

iTrader: (30)

.68 is a small hotside, it is mainly for quick spool(auto-x and hillclimbs)

~.96 is an interim and what most rotary owners will use, spools a little slower but peak power is around the 7500RPM range

1.15 and higher is a dyno queen turbo, slow spool but big numbers

13b4me

.68 is pretty small. I wouldn't expect to make alot of power with it, but as Karack said, you'll make a nominal amount of power very quickly.

RotaryEvolution

iTrader: (30)

i wouldn't call 400RWHP+ any small amount though, i have that turbo as well and it is hardly anything to laugh at. (though i opted for the .96 hotside)

i have begun tuning one with this exact setup and .68 hotside and it was fully spooled by 3500, which is not bad considering it is a big turbo and is not ball bearing.

jm93rx7

iTrader: (7)

max boost 14 psi
w/o too much lag

RotaryEvolution

iTrader: (30)

should do about 350 to the wheels at that with full spool around 3500. the turbo is capable of 600WHP with a large hotside at 30PSI they claim.

jm93rx7

iTrader: (7)

i would of expected it to be a little more in the 370 ish range. Interesting. Thanks for the info

RotaryEvolution

iTrader: (30)

those are just guesses since with each setup the power put down will vary, that hotside is not designed for power, it's designed to spool the turbo quick.

13b4me

Wow 350-370whp @ 14psi spooling at 3500rpm? Is that getting close to the max efficiency range of the .68 hotside, or would you have a little headroom left? I'm surprised at even those numbers from such a small turbine. "Small" being a relative term of course.

Slammedblk7

iTrader: (7)

I was making 380-390rwhp at 13.5psi on the MP T-70 back in 05' and 480rwhp@19-20psi.

jm93rx7

iTrader: (7)

what back side?

Slammedblk7

iTrader: (7)

.96