While doing a lab for school, I noticed a trend in EGT vs ignition timing and IMEP.  When the EGT was at a minimum, the IMEP was at a maximum.  Is this trend a coincidence, or is it robust enough to tune the engine's timing by?

The test engine was the 1.6L from a 1991 miata spinning at 2000rpm and a manifold absolute pressure of 7.68 psi (0.53 bar) and stoichometric AFR.

Aaron Buster

IMEP is mean cylinder pressure. You want that as high as possible. That is directly related
to torque. You want the most torque at any RPM because HP = T X RPM.

The best BSFC comes leaner than max power and the EGT is about 100 F lower than
peak power.

Paul Lamar

The Rotary Engine News Letter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net.
You Tube http://tinyurl.com/beqqxas.
Copyright 1998-2014 All world wide rights reserved.