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Author Topic:   Mufflers
Dirt Maniac

Total posts: 194
posted July 15, 2004 06:57 AM  
Quick question concerning mufflers. Bought a DW8 that came with headers that had mufflers welded to them. Fired the car for the first time last night and it's nice and quiet(er), but I'm questioning to what performance I will loose by keeping them on. They're not required where I'll be running. If it doesn't hurt, just looking to leave them on. Anyone?

Dirt Freak

Total posts: 233
posted July 15, 2004 07:16 AM  
They say they take away a few horsepower, but I have ran them before and did not notice any difference.

unregistered Total posts: 233
posted July 15, 2004 10:35 AM           send a private message to droper23   Edit/Delete Message   Reply w/QuoteBBBBBB
Acouple of horses in a mod is unnoticeable, and it can help to be able to hear the other cars around you.

Dirt Forum Champ
Total posts: 2007
posted July 15, 2004 10:42 AM  
I cant really imagine they lose that much that it would be noticeable. I'd just leave them, you never know when you might go to a track that requires them, or your track changes its rules. Then you'll be one step ahead.

Dirt Maniac

Total posts: 194
posted July 15, 2004 12:29 PM  
Thanx guys. I appreciate the feedback. I like he idea that was mentioned about being able to hear the other cars. Plus, it's just one thing less I'll have to do to the car. hahahaha.......

Dirt Roller

Total posts: 24
posted July 16, 2004 08:38 PM  
had our car on the dyno a few weeks back 420hp at rear wheels lost 5hp with mufflers that insert into the header collector

Dirt Freak

Total posts: 324
posted July 18, 2004 07:49 AM  

Dirt Freak

Total posts: 298
posted July 22, 2004 08:53 PM  
Take them off if you don't need them... You can hear the other cars, BUT, they can't hear you and you sure want them to hear you when you are pulling up on their right side between them and the wall. I used to run the type of header that just pointed staight out and other cars gave me lots more room when they heard those noisy things.


Dirt Newbie

Total posts: 3
posted July 24, 2004 10:23 PM  
I've been running mufflers for a few years now and really like them, mostly because it sort of takes the edge off. I've got hearing problems anyway and every little bit helps. Even with ear protectors when the car is running in the shop, I can tell the difference. Haven't noticed any power loss on the track.

Dirt Maniac

Total posts: 170
posted July 29, 2004 02:14 PM  
one of the biggest problems we see with the use of mufflers is most people use a muffler that flows less air than their exhaust system and therefore costs them some power. we often go so far as to flow our header and then with a pipe installed and then with the muffler just to make sure none of the individual components restricts the flow. it has worked incredibly well. if you spend the time you can match components that will quiet the car without any sacrifice in power.
you can usually find the flow numbers of any muffler from the manufacturer. luckily we have a bench to verify them.

Dirt Maniac

Total posts: 165
posted July 29, 2004 06:29 PM  
hey its eazy if u don't have to why run them if u cry bout your ears use ear plugs or even eazyer just quit if u can't take it lol fuc* mufflers

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