Subaru Enthusiasts Car Club of the Sierras - View Single Post

sperry · 2007-12-19, 01:24 PM

Since I'm on vacation this week, I'm shopping for engine parts to get my car back together. Since my turbo is el kaput, I'm thinking of going with a Perrin rotated kit... GT3076R. But I'm not sure what AR to pick... .63 or .82. Hell, I don't even really know the difference, other than the .82 is supposed to spool about 400 rpm later, but what are the gains? All I know is that I want 350-400 awhp on race gas, with full spool before 4500 rpm. But most importantly, I want good throttle response and good even torque between 4000 and 6000 rpm where the car will spend most its time at the race track.

So, let's talk turbos. I'm pretty sure I want the GT3076R, but if anyone else has some different opinions (like the GT3071R or GT3582R... or something non-rotated, like the GT52) I'm all ears.

2007-12-19, 01:24 PM	#1
sperry The Doink Real Name: Scott Join Date: Nov 2002 Location: Portland, OR Posts: 20,335 Car: '09 OBXT, '02 WRX, '96 Miata Class: PDX/TT-6 The way out is through	Let's Talk Turbos! Since I'm on vacation this week, I'm shopping for engine parts to get my car back together. Since my turbo is el kaput, I'm thinking of going with a Perrin rotated kit... GT3076R. But I'm not sure what AR to pick... .63 or .82. Hell, I don't even really know the difference, other than the .82 is supposed to spool about 400 rpm later, but what are the gains? All I know is that I want 350-400 awhp on race gas, with full spool before 4500 rpm. But most importantly, I want good throttle response and good even torque between 4000 and 6000 rpm where the car will spend most its time at the race track. So, let's talk turbos. I'm pretty sure I want the GT3076R, but if anyone else has some different opinions (like the GT3071R or GT3582R... or something non-rotated, like the GT52) I'm all ears. __________________ Is you is, or is you ain't, my con-stit-u-ints?