Sizing an exhaust system?

[72.RS/SS]

Just food for thought. You can get any header from Jet Hot and it is way cheaper then buying some and sending them to them.

[Z-man]

This site seems to have quite a bit of good info...

Exhaust Science Link

[nancejd]

Thanks for the link, that's the article I remember reading but didn't have a copy of.

[nancejd]

OK, so I read the article, and what I'm wondering is where you find the flow rating of a muffler?

[Z-man]

I think you have to check with each manufacturer. Here's a list compiled from the Vette site...
The numbers are CFM.


OEM..................................... ........................................ ...225
Gibson SuperFlow 788200.................................. ............311
TTS Bullet Cat Converter............................... ..................324
Flowmaster 40 series 42540................................... .......352
Flowmaster 50 Series.................................. ...................362
Flowmaster 40 series 43040................................... .......392
Dynomax Super Turbo................................... .................410
Flowmaster 62631................................... .......................435
Carsound Cat Converter............................... ..................436
FLP Cat Converter............................... ............................440
Edelbrock Victor 5535.................................... ..................562
Flowmaster 40 series 435409.................................. ........576
Edelbrock RPM series 5511.................................... ..........579
Flowmaster Delta Force Racing 54040-10........................634
Edelbrock 304 series 5560.................................... ...........640
Edelbrock Gen App 5505.................................... ..............708
Dynomax Race Magnum Welded 17216...........................711
Borla XR-1 40600................................... ..........................836
Borla XR-1 40615................................... ..........................854
Dynomax UltraFlow SS 17263................................... .......1000
Dynomax Race Magnum Welded 17218...........................1000
Borla XR-1 40575................................... ..........................1100
Dynomax UltraFlow............................... ...........................1133
Edelbrock Victor 5537.................................... ..................1400
Borla XR-1 40450................................... ..........................1400
Borla XR-1 40741................................... ..........................1450
Dynomax UltraFlow SS 17296, 17268..............................2200
Dynomax Race Magnum Welded 17220, 17224...............2200
Dynomax Race Magnum Welded 17225...........................2600

[USAZR1]

Sanderson intermediates will work with a manual trans. Patriots won't. I'm not sure about Hedmans.