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Discussion Starter · #1 ·
2.5" or 3" Exhaust???

I'm building a 3.2 L NA VR6 with 280 Cams and I would like to know wich diameter give more power on a VR6
I'm planning to rev it at about 7500 - 8000 http://****************.com/smile/emthup.gif




[Modified by eweber, 1:10 AM 4-5-2002]
 

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Re: 2.5" or 3" Exhaust??? (eweber)

Go with the 2.5" or check with your motor builder for advice. I can't think of one header with a collector bigger than 2.5" anyways.
Hope you're running alot of compression to get those 280s to idle. I'm having enough trouble with the 276s!
 

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Discussion Starter · #5 ·
Re: 2.5" or 3" Exhaust??? (need_a_VR6)

I'm building it my self, I'm running 11:1 CR http://****************.com/smile/emthup.gif
If you have any Dyno runs of your car, can you post them
 

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Re: 2.5" or 3" Exhaust??? (eweber)

Motor still isn't broken in, and Garrett is having some trouble finding the file he thought would work with the car. Still under 4.5k for a few more miles (987!)

Belive me, when I dyno, you'll know, they'll be a thread for it.
 
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