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Engine: Injected Performance BC 4.2L, Cosworth Heads, IP Cams, L19 Headstuds
Transmission: Powerglide
Turbo setup: Custom Injected Performance Single Turbo (GT47-88)
Management: Haltech Platinum PnP Standalone (coming soon!)
__________________ Phone: 859.230.9027. We are a performance parts distributor, with services including
dyno tuning, high performance engine building, and turn-key packages from 400-1000+whp Like us on Facebook for shop news and sales!
Last edited by Hal@Dynosty; 07-20-2007 at 12:41 PM.
Congrats guys !! But why does the HP fall off so much??
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Email me @ XXSUPRAXX@AOL.COM Cell # 630-205-6690 Please do not PM me!! SP Record 1/4mile Pass
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Turbo Cars are like hot women. A little edgy, every guy wants one, some guys can't handle them and if you throw a little alcohol in the mix they'll rock your world!!
I have been running a GT47-80 on my Supra for a little over a year now. We took a lot from what we know on the Supra and are using it on the Z. With 1.2L more displacement on the Z, a GT47-80 just felt small
Well, the reason I mentioned this is that to me, from my research, this turbo, seemed wayyy too big. And the power drop off is likely NOT from the lower manifold entirely, but from the turbine A/R choice.
Did you get the .96, 1.08, 1.23, or the 1.39 A/R exhaust housing? The reason I say this is that he exhaust/turbine side exduceer diameter+the blade-to-wall clearance together have to be considered together with the A/R of the turbine. So, you already start out with a very large exducer blade diameter, and if you pick a too high a A/R, the turbo spool will be affected, while picking too low an A/R may spool up the turbos too quickly and hit the surge line on the compressor (since the compressor is really big).
I think that hte shape of your power curve has a lot to do with the above compressor/turbine choices. But, it doesn't really matter to you guys it seems since this is obviously a drag car project, not a well-balanced street car. I am not raining on your parade, that's truly incredible power that the car is making now, but was just curious of your research on the turbocharger sizing.
Congrats, great to see the Brian Crower Stroker Kit showing what it is really worth.
On a side note, technically wasn't Performance Motorsport the first in the four digits? They had something like 1500 hp two years ago and that was still a VQ35 I believe.
I hope this doesn't start a huge debate, but why haven't we seen any twin turbos put out this kind of power yet? Isn't the SFR kit supposed to be good up to this hp level, using the appropriate turbos?
Injected Performance bringing in the first four digit dyno number: 1016rwhp DD
