What is too rich WOT/Boost?
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Joined: Nov 1998
Posts: 14
From: New Westminster, BC
What is too rich WOT/Boost?
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?
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?
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Joined: Dec 1969
Posts: 10,745
From: Buffalo, New York
Re: What is too rich WOT/Boost?
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?
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?
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
Thread Starter
Registered User
Joined: Nov 1998
Posts: 14
From: New Westminster, BC
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Joined: Mar 2000
Posts: 520
From: Bellingham, WA, USA
Big power from an S-trim A4. Nice!
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
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