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Porting 03' Supercharger

Mali1966

Regular
May 26, 2005
114
0
Has anyone had any experience with porting their 03-04 supercharger ?If so where did you take it or who did the porting for you ? Did you upgrade your injectors to 60lbs. and add a fuel pump? I have heard some people say this is good for 60hp at the wheels (did this happen for you) ? Wanted to take it to a local shop if one is available. (Chicago area)

Thanks for any feedback guys.
 

Flyn

Go ahead. I'll catch up.
Moderator
TCG Premium
Mar 1, 2004
68,053
27,986
Selling homes on the Gulf Coast of Florida
Stiegemeier in St. Louis is usually thought of as the best porting company. A pullied and ported '03/'04 will usually be dynoing somewhere around 500 rwhp at which point the stock fuel system starts to run out. Then your choices are the Kenne Bell Boost a pump or dual Focus fuel pumps replacing the single Cobra pump. Both methods work. 60 lb. injectors are sometimes needed, sometimes not depending on which pulley you have and whether your stock injectors are maxing out. Send a PM to Dun4791 if you want more info. He has a 2.76 pulley, ported blower, plenum, and throttle body, and 60 lb. injectors along with the Boost a pump.
 

mosconiac

Regular
Jan 5, 2005
274
0
I removed my SC/TB/Plenum myself (no additional help), sent it to Stiegemeier's in St Louis for a Stage III port, and reinstalled. Probably picked up 30-35 rwhp. I didn't need the MAFXtender I installed. Stock injectors, pumps, and MAF.

EDIT: Forgot to say that I'm running an 8# lower, too.
 

tom03Cobra

YEEOWZZAA
Dec 13, 2004
182
0
I have stiege stage III on the eaton, ported TB and plenum, NGK-TR6 plugs, SCT tune from Steige (mail order), no mufflers, Cone filter, and dyno'd at 501 rwhp and 484 rwtq at Sound Performance (mustang dyno).

Car is a viper killer from a roll (can beat a headers, exhaust, roller rockers, intake, viper through about 135-145).
 
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