Quote:
Originally Posted by harkbrz
My car was actually the one that made "only" 190 :P with the twin screw. What we learned from tuning my car was that how restrictive the oem header really is. It limits the potential significantly. From my understanding Sasha didn't feel comfortable pushing it any further than he did because of the heat being built up/pushed back up through the header. Also, 91 (what I was tuned for) vs 94 octane apparantly also makes a world of difference.
NA Application w/ header and 94 octane will make 180-190
Twin Screw w/ OEM header on 91 made around 190
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Vihn's car made 180whp on the stock header, just AEM intake and miltek exhaust. "BatStig" made 170whp with a JDL header, full exhaust and 94 octane.
Brutally bad california 91 octane (read the whole article to see just how bad), CARB legal off the shelf tune made 193whp:
http://www.motoiq.com/MagazineArticl...ercharger.aspx
There's also this chart:
The stock header isn't nearly as bad as on most cars, if people are making 200whp N/A on e85 on it, I can't see it being that bad of a restriction. You should be able to get WELL over 200whp with the Innovate kit on the stock header.
There might be something more to the 91 vs 94 octane up here though. I found that I got a lot of knock on Shell 91 in the midrange (but not WOT) on a 91 octane tune, but with Petro 94 on a 93 octane tune I'm getting no knock in the midrange at all. It was bad enough on the 91 octane tune that I was dropping the IAM down to like 0.5 when I was stuck in traffic.