I was looking at your mods profile and it doesn't list any injector upgrades.. Are you still running the stock 19lb injectors ( yellow ones )? if so thats bad man. with a blower your should be at least 30lbs, man with a kenny bell, i would go 36's... how long have you been running the car since the blower install and what kind of mileage on the motor? reason I ask, maybe a head gasket is on the way out, it will ping from cross firing from from the adjacent cylinder. a compression test will detect this.. Fuel is your worst worries... to lean and your motor will melt down. buddy of mine with a paxton blew his motor from not enough fuel pressure and to lean. gas quality today sucks, so if your fuels system hasn't been upgraded, then time to do so and hopefully it will go away. if not something might have got hurt. i hate to be harsh, but better check it all now then later. a lifter knock will make itself known at idle. nice tapping sound. also can be confused with a rocker arm too. roller rockers do wonders for valtrain sound. let me know what you find.
|