Lightweight catback systems

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Feb 6, 2008 | 03:43 AM

#21

daktruckie99

Registered User

Joined: May 2007

Posts: 8,742

Likes: 4

From: Berkshires, MA

The weight difference of the lightest exhaust vs. OEM isn't even as large as the weight difference between a full tank of gas and a tank that's almost empty.

Do you notice that difference?

Feb 21, 2008 | 12:55 PM

#22

EngineerX

Joined: May 2006

Posts: 431

Likes: 1

From: Dodging bullets in L.A. Calif

Quote:

Originally Posted by daktruckie99,Feb 6 2008, 04:43 AM

......as the weight difference between a full tank of gas and a tank that's almost empty.

Do you notice that difference?

yes, you can. Just ask anyone here who frequents track events.

Feb 21, 2008 | 02:32 PM

#23

azap1

Registered User

Joined: Dec 2007

Posts: 566

Likes: 0

isnt it something like 15-20 lbs for every 1 whp or something like that... I dont know dont quote me I saw that from a autoXer here in s2ki somewhere

Feb 21, 2008 | 03:23 PM

#24

slackfaster

Joined: Jul 2004

Posts: 1,628

Likes: 1

From: lost angeles

^^^see just a little bit higher up this page....

Quote:

Originally Posted by slackfaster,Feb 4 2008, 12:03 PM

...the formula starts out at around 1whp per 11lbs lost... (ratio goes down the lighter you get obviously)...

Feb 21, 2008 | 03:26 PM

#25

EJinc

Registered User

Joined: Feb 2008

Posts: 33

Likes: 0

Quote:

Originally Posted by slackfaster,Feb 4 2008, 03:03 PM

the formula starts out at around 1whp per 11lbs lost... (ratio goes down the lighter you get obviously)

so if you loose 40 lbs you gain about 3.6 whp

Joke or not but this is how inaccurate data gets quoted.

Losing weight reduces HP/LB ratio. It does not increase WHP.

You stated you auto cross. If you are a national competitor and the extra weight will help you cut down on tenths of a second then do it. However, you probably don't so I would take the Tanabe (sounds great) and spend the money else wear to improve your car. (Front Sway Bar, Tires, Suspension, etc)

Feb 21, 2008 | 09:57 PM

#26

slackfaster

Joined: Jul 2004

Posts: 1,628

Likes: 1

From: lost angeles

^^^ Come on ---

Any person that would read the above to mean that loosing weight will make your actual WHP physically get higher...

well, it serves them right.

I think you have to expect a minimal minimal intelligence on this site.

You should hang out in the Racing and Competition forums a bit..
you might learn something...

Although there are people talking about "vortex generators" and "powerneo magnets" on their fuel line adding horse power...
So you may be right.