View Single Post
TThom TThom is offline
Registered User
 
Join Date: Feb 2011
Posts: 19
Quote:
Originally Posted by vanosman View Post
You say don't worry about cooling to reduced detonation or make power, just advance the timing ?

So you believe the stock air box is cold as ice and has little heat sink, just advance timing to reduce knock and forget CAI config with AFM because factory is best ?
Did I really say that? I don't think so.
I was saying that a cone filter won't make a difference knock-wise with the airbox/snorkel with chips such as the "Cup 290bhp" which, unless you know already, feature a very agressive timing curve in higher RPM compared to stock or even aftermarkets such as Guru/MaxHP (etc).

Quote:
Originally Posted by vanosman View Post
How does one advance timing with Cup chips and stock AFM? Chips are already advanced. I don't have knock.
...and you wouldn't get any more knock running the stock airbox/snorkel.
The original "290bhp" Cup fuel/timing mapping done by Snobeck for the 1990 Cup series in France are knock-safe, even in very hot weather, but that is when running a stock K26/8 turbo, not some Garrett/KKK hybrid with, I assume, a different compressor map, which seems to be your case.
__________________
1990 S2 - mostly stock
1990 951 - 3.0 8V

Last edited by TThom; 03-12-2011 at 12:50 AM..
Old 03-12-2011, 12:47 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #12 (permalink)