Installing Blitz Supercharger

[LtNoogie]

Originally Posted by camelll

There are 2 different distinct noises that I hear with mine. The first is what we have determined to be pre-ignition and the second one is when the defrost or ac is on regardless if the sc is on or not and it sounds like a vibration that comes and goes with the engine loping when the ac compressor comes on and then goes off. Is this the noise you are talking about LT?

Yes. I had a friend in the car and he thought it sounded like some kind of vibration under the floor board. Wierd.