flowmasters on 454?

[3r!c84]

here we go again

Originally Posted by Moostifer

had them on mine... I'm now using the 30's. no difference in sound at all (but my motor isn't stock either), just got more torque from the added back pressure.

Originally Posted by Redcap

A complete myth.

Originally Posted by Moostifer

my dyno pulls prove you wrong. sorry

Originally Posted by INSIDIOUS '86

True, put a wet rag in your mouth and tell me if you run a marathon faster.

No engine made likes back pressure. Your gain in torque was possibly from increased exhaust velocity. This is why some engines will run better overall with a 2-1/5 inch pipe over a 3 inch pipe. There is more exhaust velocity a lower rpm/smaller engine will get more flow from a small pipe over a 3" pipe!

Apply this to cyl heads as well on the intake port runners
Posted via Mobile Device

Originally Posted by Redcap

Your dyno pulls didn't improve because of 'back pressure', kiddo. If you actually believe that drivel, you have a lot of research to do.

[87Lowrider]

I'm about ready for new exhaust on the ole' girl.. this is my 454 with Hookers to 2 1/2" to turbos and pipes out the rear... thinking about 3" pipes and Flowmasters with pipes straight out the back... but, I don't want it to sound like a mustang!

http://www.youtube.com/watch?v=DRDKCZHjn50

[Smoke_Dog]

Ooowee

Originally Posted by 87lowrider

i'm about ready for new exhaust on the ole' girl.. This is my 454 with hookers to 2 1/2" to turbos and pipes out the rear... Thinking about 3" pipes and flowmasters with pipes straight out the back... But, i don't want it to sound like a mustang!

http://www.youtube.com/watch?v=drdkczhjn50