JCviggen Posted January 4, 2012 Report Share Posted January 4, 2012 I went from using 1 NA cam to both and kind of wished I had stuck with the 1. (all euro GLT models were NA hence some confusion) I didn't notice much improvement in top end but certainly lost something in the midrange. That said I have no dyno data before/after. Link to comment Share on other sites More sharing options...
dublin14 Posted January 4, 2012 Report Share Posted January 4, 2012 I already did...I've had them for a long while. And I didn't notice much. Maybe a little, but not enough to claim a specific power gain from the butt dyno. But looking at the differences in lift/duration/lobe center compared to the turbo cams, 20+hp seems mighty optimistic. At best, they're a half-step toward a mild aftermarket street cam set. I don't think I got 20hp @ peak even with my T3/T04E @ 18-20psi...let alone putting them into a 15G car. But that's just my opinion - only reason I didn't dyno the N/A cams was because it honestly seemed like a waste of time/money. I didn't think I was going to see a gain on the dyno. Its all about how you have the car setup with timing ect. Quite a few guys over the years said they noticed a nice increase and others not so much. So that tells you something. And if I only got 15hp for a setup like mine with the NA cams over turbo cams, isnt that worth it? I mean they cost $60-70 vs say $200 for an IPD Coldair that doesnt really do much at all. Link to comment Share on other sites More sharing options...
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