VERY rich idle
#1
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VERY rich idle
I just finished detailing the car and pulled it into the garage where it was warming up. I revved a few times(under 3 dont worry, to listen to my exhaust and the sucking sound of the intake when I noticed something. I know this is normal, but this car runs ridiculously rich at idle! And we still get rough idle like it is not rich enough! I looked at the smoke coming out the exhaust and it was pouring out at idle. I revved it to 2-2.5 and held it and the smoke virtually disappeared. I know this could be because the faster velocity of exhaust gases would shoot they out of my eyesight but someone stood behind and witnessed much less exhaust. I guess there is no way to really cure this because leaning it out would get severely rough idle(practically chocking the engine/detonation?) Don't know if detonation really occurs at idle speed but I guess any incorrect air/fuel mixture could detonate which is why tuning is so important. This would also contribute to the gas mileage issue, I am aware everyone knows the 8 sucks it down at idle.
It was just an interesting observation and though some peeps might wanna discuss it. Is there any cure for this? As for as I know there is not because the design of the rotary and it's just the way it runs.
It was just an interesting observation and though some peeps might wanna discuss it. Is there any cure for this? As for as I know there is not because the design of the rotary and it's just the way it runs.
#4
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ok, I am going to see tomorrow morning how rough the idle is. That makes sense mysql cuz I always seem to notice rougher idle after it has warmed up. No I don't have a scanalyser and don't want to drop 200+ on hymees. Isn't it on mazdaparts? Or is there another place that has it cheaper, besides ebay.
#7
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Rotaries LOVE a rich idle..the more fuel you dump in at idle, the smoother it will idle. Talk to Tofuball on the RX7club about his tuning experiences on his 'Vert.
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