ENDEE666

I see a lot of GT guys going with 2.8 heads & cams, would the cams alone be worth it on my well tuned stage 3+ with custom tune? What would the trade offs be like? I know you may lose some low end, but how much? And how much mid or top end gain? What would the effects be like? And would it be best to use only the intake or only the exhaust cams or anything like that?

Thanks

complacentsee

Probably best to just grab the whole heads. Atlesat I imagine it would be less money to pull the heads from whatever 2.8 you can find.

ENDEE666

I have full heads with bad valves. From what I heard, the heads are a waste on a K04 car, but great on a GT car. The cams can be put in much easier than swapping the head. So the most I would do is the cams since its a much easier install & the motor can stay in.

complacentsee

Yeah, then go for that. I thought Mike had a post a long while back about the 2.8 cams.

ENDEE666

Who's Mike? Whats his user name or something I should search for to find that post cause I didn't find much...

ENDEE666

Anyone else know where I can find that thread or some more data on how the cams would effect a stage 3+?

complacentsee

Sorry I missed the follow up. I ment Piggie/Mike/Mike@vast. Link to post inside.

https://www.audiworld.com/forums/sho...php?p=13367808


Not sure how worthwhile it is. You could try asking at QW as well.

ENDEE666

Looked over that thread & the tests all seemed to be on K03's (and many years ago) so it would not really indicate what a stage 3 car would get out of them. Anyone have an idea what the effects would be on a K04 setup? I know there will be high rpm gains, but I am looking to see what kind of trade off there would be on the low & mid rpm power..

complacentsee

edit: From what I've read the cams are only good for the highend. And slightly hurt the lowend. On K04s.. the performance might just me minimal? Sorry I can't be of more help.

timsias

not worth it, k04s still run out of breath at liek 6k, and thats only like 1k after the 2.8s start to make a difference