Bob 96STrimA4
04-01-2003, 04:56 PM
637RWHP 396cu.in. LT1
15lbs boost
9.0-1 Static Comp. ratio
94 Octane
I'm trying to get my exhaust temps below 1500* WOT. Some cylinders are as high as 1625*.
My question: Is 11.5 to 1 AFR to rich? Will this damage my engine to run this rich WOT?
rskrause
04-01-2003, 05:02 PM
Originally posted by Bob 96STrimA4
637RWHP 396cu.in. LT1
15lbs boost
9.0-1 Static Comp. ratio
94 Octane
I'm trying to get my exhaust temps below 1500* WOT. Some cylinders are as high as 1625*.
My question: Is 11.5 to 1 AFR to rich? Will this damage my engine to run this rich WOT?
Big power from an S-trim A4. Nice!
You will make a few more hp if it's leaner, but rich is safe! I aim for 12.5:1 on the dyno, with some account taken of test conditions vs. likely operating conditions. IOW, if testing is on a day with low air density, we make it richer to account for operation under better conditions, and vice versa.
Do you know the test conditions?
Rich Krause
Bob 96STrimA4
04-01-2003, 05:06 PM
My dyno chart is on my web page:
www.blackknightcamaro.com
zturbo
04-02-2003, 03:24 AM
Big power from an S-trim A4. Nice!
t-trim cogged setup... Think he has a t56 in the car now (at least think he did last time at the track...
Bob,
Drop a line if you need a hand with anything at the track. Should be going soon with a diff motor to try out. (non turboed for now)
Steven
Highlander
04-15-2003, 12:23 AM
Its not just the 11.5 is that that line is not FLAT!!!!
You have 12.0 all the way which I'd stay there and then richens up.
Bob 96STrimA4
04-15-2003, 10:38 AM
I wanted to richen it up at the top end for saftey with 15 lbs of boost and 94 octane.
You think 11.5 is too rich?
Highlander
04-15-2003, 05:21 PM
Honestly no... but... you should have a smoother curve... f you do... the car will like it more...
LTOne4Fun
04-18-2003, 09:42 PM
those cylinders runnign pretty hot