Anyone who has a good table of how big exhaust really is needed on a engine. Single/dual system.

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GTA -89:383, 4-bolt,Free flow muffler,dual 3" HF cats, Edelbrock headers, Canfield heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTR, !plenum, 52 TB, MSD 6AL, TPIS level V prom, Superior shift-kit and all the minor mods,looking for a SR ...
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

 

This is a chart used by Dynomax and Hooker for sizing exhaust for HP.

HP-------Single----Dual
200-300----3"------2.25"
300-400---3.5"-----2.5"
375-450----4"-------3"
450-550---4.5"-----3.5"
550-650----5"------3.5"
650-800-------------4"
800-1000-----------4.5"
more than 1000------5"




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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI


[This message has been edited by IROCZTWENTYGR8 (edited August 26, 2001).]

 

That was big stuff.......I have clearence problems with my 3,5".....I wonder how I can get bigger exhaust to fit?

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GTA -89:383, 4-bolt,Free flow muffler,dual 3" HF cats, Edelbrock headers, Canfield heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTR, !plenum, 52 TB, MSD 6AL, TPIS level V prom, Superior shift-kit and all the minor mods,looking for a SR ...
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)