Mufflers Popping/Backfire when hot

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Mar 25, 2008 | 06:09 PM

Net Exploit

Thread Starter

Burning Brakes

Joined: Aug 2000

Posts: 1,218

Likes: 1

From: MD

Mufflers Popping/Backfire when hot

Lately, once my 2000 FRC warms up, I have been getting some popping coming from the mufflers. I have a bottom breather, headers, and a Bassani exhaust system with X-Pipe.

I have not checked, but it seems when I get into it, I don't have the problem, but low RPMs and when starting off, I get a few pops.

Anyone had this problem, or have any ideas.

thanks,

Dan

Mar 25, 2008 | 06:47 PM

xlr8nflorida

Race Director

Joined: May 2002

Posts: 10,306

Likes: 15

Quote:

Originally Posted by Net Exploit

I'm not an expert on the C5, but often times when you run headers, or no cats you get popping. It can be due to the tune, or because of emissions controls and it can usually be fixed by tweaking your chip.

Mar 25, 2008 | 07:41 PM

big red vette

Instructor

Joined: Sep 2006

Posts: 162

Likes: 0

From: lockport IL

just about every c5 with cat backs pops on deccel

Mar 25, 2008 | 09:21 PM

Last C5

Safety Car

Joined: Jul 2004

Posts: 3,904

Likes: 29

From: Vancouver Washington

I reduced the popping (a little) on my track car by changing plugs and regapping them at .050 instead of the .055 I had been using.

By the way, I like your avatar

Mar 26, 2008 | 06:40 AM

Net Exploit

Thread Starter

Burning Brakes

Joined: Aug 2000

Posts: 1,218

Likes: 1

From: MD

A little bump.

I guess I will take it into the local Corvette Shop for a checkup. It only started this about 6 months ago and is steadly getting worse, with a hesitation upon low acceleration, but seems to accelerate fine once the RPMs come up.

I am use to the popping on de-acceleration, but not sure what the occassional pop is when I start off, or just idling.

Thanks for your input. Any more ideas.

thanks,

Dan

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