aFBatw!

after replacing my cat and installing a new rb header my exaust sounds like a tin can when i realy get on it, ihave a flowmaster mufler but it didnt make tha sound before. ive read before that i could be detonation but i didnt touch the timing or any ignition parts.

aFBatw!

so um yeah i guess my question is, is this normal or should i worry?

Jaime Enriquez

headers + flowmaster = tincan. Flows and rotaries just don't go.

aFBatw!

ah thanks guys i knew about folwmasters but it was free so i figured it was better than stock.

FirebirdSlayer666

iTrader: (3)

Yeah the header opens the sound up more. The stock manifold does a good job and quieting the system and giving it a meety tone

twinkletoes

iTrader: (17)

It's not your header, even though it will make it louder, but not the tingyness. Its the flowmaster you put on. Get a borla or something with similar quality. Not ones that are fiberglassed packed.

tallbozo

iTrader: (5)

magnaflow...shakes change in other cars...

aFBatw!

well i had a *cough*pacesetter*cough* on it before and it didnt make that sound i realize now that their garbage but shouldnt it have made the same sound

aFBatw!

^i also had the flowmaster on at the time^

Kentetsu

It could be that you are now able to hear detonation where before you weren't. I would check the timing to be sure...

aFBatw!

thanks kentetsu, yeah i checked the timing and its dead on so i guess its my stupid muffler, and it might not have made the sound before due to a cloged cat.

thanks to all, Kent D.

dbragg

iTrader: (7)

check your timing by your flywheel

aFBatw!

Whaaaa? how do i do that

Jeezus

iTrader: (4)

The side inspection plate on the engine, take it off and spin the engine over until the flat side of the flywheel is parallel to the flat side of the engine block, that makes your engine at TDC. Then check your timing marks.


Also, if you are running aftermarket exhaust tubing, it will cause a ringing or pinging sound. Mine is ran with mostly import tubing (1/16"), and I know that with a 1/8" tubing the pinging would be MUCH less. Although with 2 flow-through mufflers, I can barely hear it.