Quote:
Originally Posted by LuckyX2
It should be similar in power output to a 71 (slightly less) but with a 8mm smaller turbine wheel so obviously more responsive.
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While I think it was a typo on your end, for everyone else just note that it is 8mm smaller compresosr wheel. With that considered though you need to remember that the 28RS was a 60mm wheel, but it was an older design. These new billet 11 blade wheels should (in all aspects) be lighter and more efficient so i'd say the 63 wheel should spool close to the 28RS (maybe even a smidge sooner), and the 67 (so far) seems to spool near the old 28RS just off the gate. I'm sure with the boost controller things will change though.
Again though, these differences are hard to measure over an RPM graph though...over time is where these really show their differences. Heck my good buddies 28RS car and mine are almost similar...but night and day difference with timeframe and response.
Quote:
Originally Posted by LuckyX2
only looking for 375-400whp so the 63 may be the one for me.
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I'd say if you're set on the GTX series and 400 whp top end, that the 63 would be the way to go too.
Quote:
Originally Posted by LuckyX2
I'm guessing 450whp or so for the 67 and 400whp or so for the 63 but only time will tell for sure. I'm anxious to see what you do with the 67 and what R/T tuning does with the 63.  |
I hope the 67 sees 400whp, but now there is the other piece of the puzzle that I may need to address. Sure the S3's worked well with the 2871, but I'm curious as to if S4's work BETTER with the 2867. Hard to say.
The other thing i need to sit down and play with are cam gears...I've been reluctant for no other reason than lazyness.