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Discussion Starter · #1 ·
Taking a closer look at my dyno sheets. EGT's at 7300 are as follows:

#1-1240
#2-1290
#3-1250
#4-1240
#5-1280
#6-1240
#7-1320
#8-1290

BBC, Hogans sheetmetal w/dual ProSystems Dominators, conv. head.

Look o.k.?

Martin
 

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They are about 100 degrees colder than mine.
1453
1493
1390
1346
1435
1396
1452
1528
 

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Egt's are nothing more than a tool to use once you have the plugs looking like you want them.

One person's egts will not equal anothers.

Make the motor happy buy giving it the fuel it wants and reading the spark plugs for burn and timing. Then use the EGTs as a reference.
 

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Egt's are nothing more than a tool to use once you have the plugs looking like you want them.

One person's egts will not equal anothers.

Make the motor happy buy giving it the fuel it wants and reading the spark plugs for burn and timing. Then use the EGTs as a reference.
2x.
The only thing I would add is if your EGT has more then about 100 degrees from 1 cylinder to another I would swap thermocouples and see it is stays the same or goes with the thermocouple. At least that way you know what your equipment is seeing.
 

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I found that the dyno temps of each cyl and the actual temps of the cylinders change with the engine in the car going down the track. It was so different it actually shocked me. So like they say we don't race the dyno we race the car. G forces and air entry into the motor would seem to have a hugh effect based on what we saw on mine.
 
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