Idle fueling
05-07-2008, 09:16 AM
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Idle fueling How do you nail down the idle fueling? I understand the spark needs to be where it makes the best vacuum via map sensor; but how do you figure out the fuel. I've read several times never trust a wide band at idle and I understand why. Just not 100% on the correct way to get the idle VE where it needs to be. Any help is greatly appreciated.
05-08-2008, 10:46 AM
#4
WB assumes complete combustion and that doesn't happen at idle. AFR: Just run what works within reason. The exact AFR won't matter at idle.
Mine shakes around from day to day. I can never get it exact. It never reads the exact same from stop light to stop light either. Minor differences.
Mine shakes around from day to day. I can never get it exact. It never reads the exact same from stop light to stop light either. Minor differences.
05-08-2008, 11:53 AM
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Thanks! I'm gonna start from scratch on my buddies WS6 with the F13 we just put in. Got one tune in there just to get it to idle and mobile. Works okay; but needs tweaked some more.
05-09-2008, 07:16 AM
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Using HP tuners. Full bolt-ons, 4.10s, 3500 stall, and a 150 horse plate kit. Before the cam and pulley, the car went 7.304 at full weight with a so so tune I had put together. Oh, this was with a single nozzle that didn't even have a name on it, bone stock suspension, and 3.73s instead of the 4.10s last fall.