headers installed longtube! Popping problem

[firehawkzach22]

Whenever I release the clutch on regular acceleration it does not pop but when I get on it in first gear it pops and sounds like something is not right underneath. Also the engine just doesn't seem right I know it will sound different with headers but this is weird. Nothing was done to upset the drivetrain. I put 1 3/4 pacesetter headers on my car, 2000 firehawk. If anyone can help I would appreciate it.

[sunsetorangess]

Are you throwing any codes? Did you happen to chip any of your plugs while instailing? Wires look good? Do you have any leaks? What exhaust are you running?
J

[Wesman]

Sounds like you might have an exhaust leak between where the cylinder head meets the header. Does the "popping" sound almost like a Harley?? Check to make sure the seal between the header and the head are good, if there is a slight gap or the gasket blew out, it will run like crap and sound like a 2 stroke.

[firehawkzach22]

I'm pretty sure that the header isn't leaking at the head I read the post on projecttransam.com about the AIR pipes and restricting the flow. According to that tech article the exhaust flutter eventually ruins the check valves? I think the new 3" y-pipe is rubbing against some part of the body or the driveshaft. It seems like when the car begins to accelerate and the body shifts it sounds like the y-pipe is rubbing a moving part which could only be the driveshaft! At any rate I'm taking it back to the exhaust shop tomorrow. I have 3" Borla catback.

[sgt0704]

i don't know. i thought it was normal. hell, my 98 Z does that now with a complete stock exhaust. maybe it's just pressure that give is the popping sound. kinda like a backfire, only not really.

my 91 rs did it too with the shorties and 3" flowmaster..

[slims00ls1z28]

Sounds more like a cracked or chipped plug especially if its under acceleration. Pull em all and check them.