hot lean restarts
#7
Hot starts are the bane of my life. I find the only way to get going is to crank for several seconds then blip the throttle as I release the key. If I don't do that then it might sometimes fire up but will then stumble along at 400-500 rpm until I blip the throttle. I've tried alternately increasing and decreasing the cranking pulsewidth by 10% or even 20% but neither seemed to improve.
I stopped to fill up today and it took me three tries to get started. Embarrassing with a queue at the pump.
I stopped to fill up today and it took me three tries to get started. Embarrassing with a queue at the pump.
#9
I see intake temps around 140F from heat soaked everything after the car sits for 30m-1hr after a session. The last event I did the ran 2 out of 3 run groups and the restart after the 30 minute pause was never pretty. Usually have to keep the throttle open a bit and the RPMs at 2-3k for 30s-45s to give the intake tract a chance to cool down a bit before the idle is stable.
One thing I need to do is move the sensor so it's not on the same side of the intake tubing as the radiator, currently it's about 4" off the throttle body coming out the drivers side. Another thing I need to do is switch to a metal intake pipe vs the plastic I have now.
One thing I need to do is move the sensor so it's not on the same side of the intake tubing as the radiator, currently it's about 4" off the throttle body coming out the drivers side. Another thing I need to do is switch to a metal intake pipe vs the plastic I have now.
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StratoBlue1109
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09-30-2018 01:09 PM