KevinD did a road tune and the install. I never got a baseline. The data logger estimated 349whp and 351wtq. But those numbers cant be expected to be very accurate. But I can tell you that the seat of my pants dyno was in full effect and all I can say is omfg that crap was fast as hell compared to how it was before the install and tune.

 

well i dont know if i want 272 0r 280s now haha

 

280's are gonna increase your high end power and complement a large turbo better, but are gonna make idle a pain. The 272's seem to compliment the stock turbo better and I am sure they would do well with the 20glt or a 50 trim aswell

 

well, if i would see more usable power with the 272 i would rather do that...

 

280's with the right tune is a great thing...
...idle issues are a thing of the past.

 

i can get a good tune... would i see more power wih 280s with my setup or 272s? thats mainly what im asking.

 

280s, however, like pretty much everything on the boards, you will here mixed reviews.

 

I think Gruppe-S has a moving sale on Helix 272's w/ cam gears for like $350 shipped!!!!!

 

Does anyone know which cam company grinds the cams that XS Engineering markets? Are there any published specs on these cams?

 

HKS 280's straight up on stock cam gears. No aftermarket springs required. Idle is loppy but fine on stock ecu, and I picked up 35whp/40wtq peak and 43whp/50wtq in some areas. I've seen similar results with other cars and these cams and for a VIII on a stock (or stock-ish) turbo, I would go with nothing else.

 

comp 208's intake and exhaust

 

what turbo are you running? so where did you get your biggest gain as compared to say the 272 would be at?

 

280's*

 

what setup are you running? and how much power did you gain from your cams??

 

I have the spec sheet somewhere in my garage if I can find it I will scan it in and post it for yall. I am not sure who does the grind for them.