Is this to Lean of an idle?
11-05-2013, 08:45 AM
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Is this to Lean of an idle? Hey guess been loosing some sleep over night about this. My car idles at 15-16.8 air/fuel ratio through my wide band also my vacuum is @15inches of vacuum. I notice this after I replaced #7 piston during cruising the A/F is at 14.6-15.2 the cam on the engine is (Int. 226 Exh. 240 lift is Int. 605 Exh. 589 lobe sep 115+5) the car runs fine but I'm a lil worried about the vacuum reading a to low any input is appreciated thanks!!
11-05-2013, 10:04 AM
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Hey guess been loosing some sleep over night about this. My car idles at 15-16.8 air/fuel ratio through my wide band also my vacuum is @15inches of vacuum. I notice this after I replaced #7 piston during cruising the A/F is at 14.6-15.2 the cam on the engine is (Int. 226 Exh. 240 lift is Int. 605 Exh. 589 lobe sep 115+5) the car runs fine but I'm a lil worried about the vacuum reading a to low any input is appreciated thanks!!
11-05-2013, 10:18 AM
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I'm running pump 91 with meth I'm just worried if something else is damaged on the engine since it reads 15 inches of vacuum at idle then you give it some throttle and it picks up to 20 inches of vacuum n drops again when you let off the throttle @ idle I checked for leaks and didn't find any
11-05-2013, 10:37 AM
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I'm running pump 91 with meth I'm just worried if something else is damaged on the engine since it reads 15 inches of vacuum at idle then you give it some throttle and it picks up to 20 inches of vacuum n drops again when you let off the throttle @ idle I checked for leaks and didn't find any
11-05-2013, 10:58 AM
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Why do you think that is a problem? I don't see an issue with your amount of vacuum. That number is to be expected for the camshaft of your size and LSA. Does the car idle higher than normal? Is it surging? Leaner than stoich (roughly 15-16 AFR) would be what I'd tune for with that camshaft.
