View Single Post
Old 01-19-2009, 08:27 PM   #11 (permalink)
18rgcelica73
Enthusiast Member
 
18rgcelica73's Avatar
 
Join Date: Dec 2008
Location: Fresno
Posts: 330
Drives: 03 ep3 vbp 6speed
Rep Power: 16
18rgcelica73 will become famous soon enough
Default

Quote:
Originally Posted by JoeyD View Post
Yes your car would be tuned. However, a tune won't change your compression ratio. High Compression and FI don't go together well. If the VQ is seeing knock with no boost it is undoubtably pulling timing and that results in a net power loss. Same will be true with FI only more timing will be pulled.
No a tune won't help the compression ratio go down any but actually compression is great with FI as long as it is safely tuned. You can get a lot more power per pound of pressure with higher compression. Just look at rsx-s boosted usually with 11.5:1 compression ratio and turboed making 500whp and safely tuned. It is ALL in the tune.
__________________
I have a 350rwhp 1973 18rg turbo powered Toyota celica, a 2003 civic si which will be my down payment for a beautiful MONTEREY BLUE 370z. THE370Z.COM F'IN RULES!
18rgcelica73 is offline   Reply With Quote