In a message dated 00-06-01 11:47:06 EDT, [EMAIL PROTECTED] writes: > The air > flow over the front cylinders causes the Cylinders to cool pulling heat
from > the exhaust gases. Also the air flowing back to the rear cyl. is pre heated > by the front cyl. Warren: I agree that everything you say is true. However, at normal cruise speeds and temps, the effect is relatively insignificant. The EGT probe is in the center of the exhaust stream, close to the exhaust valve, and the major effect is from the (still) burning fuel-air mixture. It's moving too fast and has too much volume to be significantly cooled by the cooler cylinder/stack temps. At low power the effect would be much more pronounced because the heat capacity of the exhaust is less compared to the surrounding metal. On the other hand, very slight difference in mixture from cylinder to cylinder can make a pronounced difference in the EGT. John __________________________________________________________________________ ______ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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