|February 2nd, 2008, 01:39 PM||#1|
Join Date: Jul 2005
Location: Orlando/Daytona, FL
GT500 exhaust testing: O/R H pipe results on big blower car WOW
A local customer brought his car over yesterday so we could test the JBA Off Road X pipe on his Stage 3 KB GT500 (running 3 inch pulley and pump gas). Exhaust system was otherwise stock.
I could not believe the top end gain of 32RWHP. Boost dropped about .5-.75psi from 3000rpm on up.
Longtubes seem to add area under the curve everywhere, whereas this only helped above 5000RPM.
I'm not big on the raspyness that no cats creates. I may try making an X pipe for my TVS GT500 that has a set of high flow cats farther away from the motor (to reduce chance of melting them). The stock X pipe has a much nicer stamped X, than the JBA pipe.
Anyone have a stock cat pipe they want to get rid of?
Justin Starkey - VMP Tuning - Ford & GM Tuning
Mobile DynoJet 224xLC Load Control
2007 Shelby GT500 Ford Racing TVS Blower, VMP 2.6" Pulley, IW 10% OD lower, TB, 697RWHP/702RWTQ
2006 F250 6.0 14.3@93
2000 Mustang 3.8 A4 TT 450RWHP@17psi & email@example.com 1.74 60ft@17psi stock motor
2006 Mustang 4.0 M5 Vortech 15psi 395RWHP 12.5@110 wife's car
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