EGTs, not just for breakfast anymore
#53
wannaspeed.com
iTrader: (23)
Ok so I've been working on my base tune. At about 2/3 throttle I'm hitting 1650 degrees rear rotor and about 1500 front rotor. This is with a series 5 LIM (no flow imbalance). Boost is about 13.5 psi, leading advance 15 degrees with 15 split, 8.5:1 rotors.
So how hot is "too hot" on straight 93 pump fuel?
So how hot is "too hot" on straight 93 pump fuel?
Or maybe because the coolant runs from the radiator to the water pump, then to the front rotor, then through the centerplate and finally to the rear housing, maybe the water cannot remove as much heat since it's already been heated by the first housing. Thoughts?
Arghx are you running or plan to run any aux injection? Glad to see your project has been coming along, you seem to document your results quite thoroughly. I've seen people report much higher EGT's then that, but the general idea has been to keep them under 1700 if possible. I don't even have any idea what mine are, maybe ignorance is bliss lol... that is unless mine are low then I wouldn't mind knowing.
#54
Mad Man
iTrader: (5)
Before you make changes in the fuel balance swap rotor EGT probes. I would also check temp at ambient and after driving (engine not running) to so if you see the same imbalance. It may not be an imbalance in the manifold but an imbalance in the EGT probes and amplifier. It doesn't take much difference in resistance to cause large changes in temperature reads.
#55
rotorhead
iTrader: (3)
Have you tried adding fuel to the rear rotor via lag settings to see if it changes at all? Maybe the exhaust manifold causes differences in flow?
Before you make changes in the fuel balance swap rotor EGT probes. I would also check temp at ambient and after driving (engine not running) to so if you see the same imbalance. It may not be an imbalance in the manifold but an imbalance in the EGT probes and amplifier. It doesn't take much difference in resistance to cause large changes in temperature reads.
Or maybe because the coolant runs from the radiator to the water pump, then to the front rotor, then through the centerplate and finally to the rear housing, maybe the water cannot remove as much heat since it's already been heated by the first housing. Thoughts?
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