A/F ratios
02-23-2008, 11:55 AM
#11
Senior Member
DYNO OPERATOR
Join Date: Aug 2005
Location: Rifle Colorado
Posts: 585
I'm sure MANY will disagree with this statement, but egt's aren't of much use until you know what your combo likes. Probe location, tube diameter & length, port design etc will effect the egt numbers. No one can say " x degrees is perfect". Once you tune your combo for max performance, whatever egt you have then is yours. Until then, the numbers don't mean much....JMO
02-26-2008, 08:00 AM
#12
Junior Member
APPRENTICE
Join Date: Oct 2003
Posts: 17
Originally Posted by johnracer
I'm sure MANY will disagree with this statement, but egt's aren't of much use until you know what your combo likes. Probe location, tube diameter & length, port design etc will effect the egt numbers. No one can say " x degrees is perfect". Once you tune your combo for max performance, whatever egt you have then is yours. Until then, the numbers don't mean much....JMO
I was a Diehard EGT man, gave the O2 a shot and love it! The EGT will read different from header to header and the O2 stays the same.
5/1 AFR is still on the fat side. FWIW mine likes 5.6/1 on Motor and 5.9/1 when i spray it. When I spray I enrich with Race Gas though.
Your best tool of all is you Plugs, reading them will tell you exactly where your at.
.........................Tyster
