T66 A/R? on 88' supra

[Shane@DBPerformance]

Q-trim is bigger than a P-trim, so it's a big laggier. The GTQ-trim versions aren't too bad though. A Q-trim over a P-trim can be worth worth up to more 50HP on a turbo that size.

[CarPsyco84]

So one can assume that Q-trim flows more air, and would be for like higher RPM hp than a P-trim, but you sacrifice spool time?

[Shane@DBPerformance]

Originally Posted by CarPsyco84

So one can assume that Q-trim flows more air, and would be for like higher RPM hp than a P-trim, but you sacrifice spool time?

Yea. But even a Q-trim is not anything all that huge in the Supra world. It all depends on how much power you want to make, how high you can rev the motor, and how much lag you want to put up with. A T67 with a P-trim is capable of around 700whp, a T66 should put out around the same.

Here is how Shaun's 3.0l Supra with a T67 P-trim .68 A/R spooled on the dyno. http://www.boostlogic.com/parts/supr...it67.html#dyno

[niterydr]

Originally Posted by ecoli

Yea. But even a Q-trim is not anything all that huge in the Supra world. It all depends on how much power you want to make, how high you can rev the motor, and how much lag you want to put up with. A T67 with a P-trim is capable of around 700whp, a T66 should put out around the same.

Here is how Shaun's 3.0l Supra with a T67 P-trim .68 A/R spooled on the dyno. http://www.boostlogic.com/parts/supr...it67.html#dyno

Wasn't that 689whp on a very unhealthy boost spike? (like 35psi?).
Still spools damm fast!