Changing exhaust system, manifolds too?
Thread Starter
Intermediate
Joined: Nov 2004
Posts: 41
Likes: 4
From: Texas
Changing exhaust system, manifolds too?
My 72 has a old exhaust system, know it's at least 15 years old. Been having engine issues when she gets warm. Had a terrific backfire today and blew both mufflers out. Recommendations on mufflers? Going to change exhaust system out, but not sure on changing the manifolds though, any great thoughts there?
Appreciate it.
Appreciate it.
Melting Slicks
Joined: Feb 2006
Posts: 2,092
Likes: 5
From: Fayetteville Arkansas
my 72 is the same way as with the age of the exhaust. I bought summit headers, plain black and plan on getting a pre fabbed 2.5" setup from corvette central. I'd get the other issues addressed quickly too if you are having that kind of a backfire.
Sully
Sully
Thread Starter
Intermediate
Joined: Nov 2004
Posts: 41
Likes: 4
From: Texas
Roger on the getting the backfire issue solved.
Seems the rough running and (now backfire) occur after the car has been running at normal temp for awhile, 20-30 minutes, runs beautifully till then. Cranks right over on start. Just replaced the coil and condenser chasing another problem. Ran well for a month and now this. Any issues/difficulty going though the whole timing regiment tune-up process with exhaust off the car? Giving serious consideration to new plug wires and plugs if the plugs are left after that backfire at all, Wow!
Seems the rough running and (now backfire) occur after the car has been running at normal temp for awhile, 20-30 minutes, runs beautifully till then. Cranks right over on start. Just replaced the coil and condenser chasing another problem. Ran well for a month and now this. Any issues/difficulty going though the whole timing regiment tune-up process with exhaust off the car? Giving serious consideration to new plug wires and plugs if the plugs are left after that backfire at all, Wow!
Le Mans Master
Joined: Jul 2000
Posts: 6,664
Likes: 162
From: columbia city in
do you want more performance?do you want louder ?headers are good for those things .but stock manifolds dont have a lot of problems and will last a long time.your muffler choice depends on what you are after .
Thread Starter
Intermediate
Joined: Nov 2004
Posts: 41
Likes: 4
From: Texas
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Burning Brakes
Joined: Nov 2012
Posts: 788
Likes: 100
From: Indianapolis IN
Anytime you have that bad of a backfire, whether your starting or while running.
Mine ran fine before and after a backfire that swelled the muffler to twice it's thickness.(sounded like a shotgun blast)
I had the three cam gear bolts - loose to finger tight.
Mine ran fine before and after a backfire that swelled the muffler to twice it's thickness.(sounded like a shotgun blast)
I had the three cam gear bolts - loose to finger tight.
