Sound when reving [Archive] - Forum


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09-08-2004, 07:39 PM
Just wondering if this is normal, when i rev my car, the moment i let go i hear like a little roar from the exhaust , seems normal, is IT?

09-08-2004, 07:41 PM
mine does the same so i assume it is

09-08-2004, 07:48 PM
what is backfire, from what i have been reading from the net, and from what my friend (he is real good aboutcars) say, it doesnt seem like backfire, it kinda gives the exhaust a growl right when you let off the gas!!

09-08-2004, 07:49 PM
actually i should have said backpressure.

09-08-2004, 07:50 PM
backpressure, is that bad, what is it?

09-08-2004, 07:51 PM
backpressure, i think thats exactly what my friend said too

09-08-2004, 07:54 PM
i would have to hear it, but back pressure is the resistance the air
encounters as it leaves the cylinders and goes down your exhaust.