Sound when reving [Archive] - GrandAmGT.com Forum

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BiHStL
09-08-2004, 08:39 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?

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

BiHStL
09-08-2004, 08:48 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!!

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

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

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

UNCTYPE-S
09-08-2004, 08:54 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.