Catback on an LS1 actually add HP/Torque?

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Catback on an LS1 actually add HP/Torque?

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Camaro >> Brand Review >> Intake, Headers and Exhaust >> Catback on an LS1 actually add HP/Torque?

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Catback on an LS1 actually add HP/Torque? - 5/18/2008 1:17:11 AM

94conv/z

Posts: 6
Joined: 5/15/2008
Status: offline I have been debating with a friend who owns a 2002 Trans Am. He has claimed that catback systems on the LS1 that although sounding better, would not enhance the HP/Torque above the stock system, and this could be supported by diagnostic readings. This is not for all cars, just the '99 to 2002 V8 Camaro's and Trans Ams' and how they are built.

I'm interested in the what the members here opinion is on this.

Post #: 1

RE: Catback on an LS1 actually add HP/Torque? - 5/20/2008 3:12:37 PM

randopium

Posts: 85
Joined: 2/7/2008
Status: offline i could be wrong, but i think the hp gain is like 5 hp

(in reply to 94conv/z)

Post #: 2

RE: Catback on an LS1 actually add HP/Torque? - 5/21/2008 4:06:48 AM

blackz87

Posts: 1349
Status: offline Only improvement over the stock system would be mandrel bent pipes for a smoother exhaust flow and that is going to be a small gain.

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Post #: 3

RE: Catback on an LS1 actually add HP/Torque? - 5/21/2008 3:43:12 PM

94conv/z

Posts: 6
Joined: 5/15/2008
Status: offline I looked up the dyno page for an *unnamed catback system (not here to debunk a good dealer of exhaust systems) for my 94 LT1 and the website has a chart showing a 13hp and 17 lb-ft. gain. I'll agree that's pretty close to correct having the same system on my car.

The same chart was used for a 2002 SS LS1 but this chart also listed numbers on the side showing increased HP/Torque with the catback at a higher RPM :

     catback HP 322.6 @ 3900 RPM
          OEM HP 308.8 @ 3700 RPM
catback Torque 338.4 @ 3100 RPM
    OEM Torque 320.7 @ 3000 RPM

Why not all the same RPM?

On a side note, my opinion is it seems more realistic the stated "catback" numbers look more realistic to a stock LS1. But that's just my opinion.

(in reply to blackz87)

Post #: 4

RE: Catback on an LS1 actually add HP/Torque? - 5/21/2008 3:46:57 PM

SpecterGT260

Black Stig FTW
Posts: 4223
Joined: 6/5/2007
Status: online
a-baWHA?

who is recording hp at <4k rpm?

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quote:

ORIGINAL: BigNic
if she offers to shift for you its on.....

http://www.camaroforums.com/m_109346/mpage_1/key_/tm.htm#

(in reply to 94conv/z)

Post #: 5

RE: Catback on an LS1 actually add HP/Torque? - 5/22/2008 10:36:38 PM

95slvrZ28

Caretaker of the Ban Hamster
Posts: 3155
Joined: 8/31/2006
Status: offline
Wow, they have some really weird peak numbers in there...

Either way, a cat-back system is mostly about visual and sound. It will get you some stock HP, but usually not as much as the manufactures claim.

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Moroso CAI/Kooks 1 3/4 LT Headers/catted Y/!muffler/Hooker tips. 17X9.5 Chrome Z06 wheels

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(in reply to SpecterGT260)

Post #: 6

RE: Catback on an LS1 actually add HP/Torque? - 5/23/2008 9:04:58 PM

SpecterGT260

Black Stig FTW
Posts: 4223
Joined: 6/5/2007
Status: online
exactly

_____________________________

quote:

ORIGINAL: BigNic
if she offers to shift for you its on.....

http://www.camaroforums.com/m_109346/mpage_1/key_/tm.htm#

(in reply to 95slvrZ28)

Post #: 7

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