Cosworth Plenum: The Good, The Bad & The Ugly
And its a beast. Wish we had some more time to have a match up. I'm sure if the strip was long enough you would have spanked me around, so I'll be looking for some really short tracks when I'm next in Chi-Town. Haha.
Thanks for the support while I was there.
The Good, The Bad, The Results:
Unfortunately due to my time constraints, we did not have the opportunity to get a before and after dyno comparison with exhaust and without exhaust cut-outs. The results are final and include the Addition of the Cosworth in place of the Crawford intake manifold and the addition of the boost actuated exhaust cut-out.
Previous set-up & numbers:
Built motor, Greddy TT, Greddy EVO TT exhaust and Crawford set-up: Yielded 686 rwhp
Built Motor, Greddy TT, Greddy Exhaust w/cut-out and Cosworth yielded: 693 rwhp
I was anticipating a loss of anywhere near 50 rwhp with the removal of the Crawford and replacing it with the Cosworth, based on my discussion with Larry. But again the purpose of going with the Cosworth was not for performance enhancement. I was quite happy with the previous set-up, but the problem was functional...The raised set-up prevented me from closing the hood. But while making modifications, I did not want to take a hit, so why not use this trip as an excuse to get another mod to offset this loss.
Seems to have worked out well after all was said and done. Top notch work as always and took advantage of getting my hands on the 1st Z-designed SP Catch Can.
Unfortunately due to my time constraints, we did not have the opportunity to get a before and after dyno comparison with exhaust and without exhaust cut-outs. The results are final and include the Addition of the Cosworth in place of the Crawford intake manifold and the addition of the boost actuated exhaust cut-out.
Previous set-up & numbers:
Built motor, Greddy TT, Greddy EVO TT exhaust and Crawford set-up: Yielded 686 rwhp
Built Motor, Greddy TT, Greddy Exhaust w/cut-out and Cosworth yielded: 693 rwhp
I was anticipating a loss of anywhere near 50 rwhp with the removal of the Crawford and replacing it with the Cosworth, based on my discussion with Larry. But again the purpose of going with the Cosworth was not for performance enhancement. I was quite happy with the previous set-up, but the problem was functional...The raised set-up prevented me from closing the hood. But while making modifications, I did not want to take a hit, so why not use this trip as an excuse to get another mod to offset this loss.
Seems to have worked out well after all was said and done. Top notch work as always and took advantage of getting my hands on the 1st Z-designed SP Catch Can.
why couldnt you just unplug the cutout for a "before" and after?
be interesting nonetheless to see how much the curve shifted to the left with the cutout with comparison dyno charts.
be interesting nonetheless to see how much the curve shifted to the left with the cutout with comparison dyno charts.
Plain and Simple.
A bunch of dyno high power runs followed by a 12 hour road trip. And service with a smile. Well... kind of a Mona-Lisa smile (if you know Larry), but a smile none-the-less. Gotcha Larry! LOL
Anybody want another Egg-McMuffin? - inside joke.
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Lt_Ballzacki
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