2" Headers are Better!?

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Aug 24, 2014 | 09:54 AM

throwit

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From: Atlanta GA

2" Headers are Better!?

So I'm in the market for some headers to go on a ~600whp 427 track only engine, and after reading a TON of posts, I had my mind pretty much set on 1 7/8 until I came across this thread...

http://www.camaro5.com/forums/showth...ghlight=header

Seems like it is legit, but it is the only one I have ever seen that does NOT show ANY loss of anything anywhere with the 2" headers.

Thoughts?

Aug 25, 2014 | 07:46 PM

throwit

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Drifting

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From: Atlanta GA

I guess 2" headers out performing 1 3/4 and 1 7/8 at all RPM ranges is of no interest to anyone? I actually thought it was a pretty big deal.

Aug 25, 2014 | 11:44 PM

HOXXOH

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Quote:

Originally Posted by throwit

I guess 2" headers out performing 1 3/4 and 1 7/8 at all RPM ranges is of no interest to anyone? I actually thought it was a pretty big deal.

That chart was a little strange, especially where the TQ and HP curves crossed. Too bad they didn't twist that up higher than 6300.

Aug 26, 2014 | 01:32 AM

Guinzu

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I believe I read in there there was no change in tune...so does that mean it's optimized for each size headers? Doesn't sound like it.

Aug 26, 2014 | 08:23 AM

throwit

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From: Atlanta GA

Quote:

Originally Posted by Guinzu

I believe I read in there there was no change in tune...so does that mean it's optimized for each size headers? Doesn't sound like it.

Just a guess, but I have read many places that ARH sells "tuned" headers...maybe that's why there were no adjustments made.

It is still a shock to me that the 2" system produced more tq/hp everywhere...if this was a legit test (which it seems to be), this definitely goes against popular belief.

Last edited by throwit; Aug 26, 2014 at 08:29 AM.