Back Pressure...???

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Jan 6, 2007 | 08:56 PM

Z-51 POWER

Thread Starter

Instructor

Joined: May 2006

Posts: 145

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From: Guaynabo, Puerto Rico

Back Pressure...???

Please advise!!!
I have 433rwh and 407torque with the mod's that I have on...I have the Borla Stinger with the LG Longtubes with no cat's. I am thinking of changing the Borla's for a set of Bullet's and thoughts on loosing back pressure..and this affecting my top-end???

Thanks in advance for your feedback,
Manuel

My mod's:
MTI RACING TUNE
LG LONG TUBES NO CATS
BORLA STINGER
HALTECH STINGER
LG UNDERDRIVE CRANK PULLEY
160 DEGREE THERMOSTAT
TR6 PLUGS WITH LG COATED CONDUCTOR WIRES
LG CAM G5X3 WITH THE SPRINGS, RETAINERS, AND ROD COMBO
3:90 DTE STAGE 2 DIFFERENTIAL

Last edited by Z-51 POWER; Jan 6, 2007 at 08:59 PM.

Jan 6, 2007 | 10:12 PM

Armored Saint

Racer

Joined: Dec 2006

Posts: 330

Likes: 0

From: Alabama

By decreasing back pressure you gain high end horsepower at the cost of low end torque.. hope this helps

Jan 6, 2007 | 10:36 PM

shopdog

Race Director

Joined: Oct 2004

Posts: 10,089

Likes: 14

Back pressure is never good. The lower you can make it, the better the engine becomes as an air pump, and that means more power, up top, down low, everywhere across the power band.

Jan 6, 2007 | 10:37 PM

VET4LES

Team Owner

Joined: Oct 2004

Posts: 27,420

Likes: 64

From: San Clemente CA

Quote:

Originally Posted by Armored Saint

By decreasing back pressure you gain high end horsepower at the cost of low end torque.. hope this helps

Jan 6, 2007 | 10:47 PM

Z-51 POWER

Thread Starter

Instructor

Joined: May 2006

Posts: 145

Likes: 0

From: Guaynabo, Puerto Rico

I use to have a 996 Porsche Carrera 2002 and ran it with mufflers bypass pipes, highflow cats and headers...extremely loud. The car cars top end went down in compared to my friend stock 996 with the stock exhaust set-up. This is my concern.

Thanks,
Manuel