HP difference between tight (1 3/4) and loose (2) header.
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From: East Tennessee
HP difference between tight (1 3/4) and loose (2) header. I got a good deal on Kooks 1 7/8 stepped to 2 inch to a 3.5 outlet. This is for a 383 stroker. I am guessing that with the exhaust I may not have effective scavenging and therefore will loose a few horses compared to a tighter exhaust.
Would you agree? Is this lose probably very small? Like 5 HP or would it be larger than that?
I know to really answer this I need to put them on and test and compare. But, I am justing wanting to make sure that I won't be loosing alot of horse power with this. The great price I got for the header will make up for loosing a few horse but not a ton of them!
Would you agree? Is this lose probably very small? Like 5 HP or would it be larger than that?
I know to really answer this I need to put them on and test and compare. But, I am justing wanting to make sure that I won't be loosing alot of horse power with this. The great price I got for the header will make up for loosing a few horse but not a ton of them!
Originally Posted by BB
I got a good deal on Kooks 1 7/8 stepped to 2 inch to a 3.5 outlet. This is for a 383 stroker. I am guessing that with the exhaust I may not have effective scavenging and therefore will loose a few horses compared to a tighter exhaust.
Would you agree? Is this lose probably very small? Like 5 HP or would it be larger than that?
I know to really answer this I need to put them on and test and compare. But, I am justing wanting to make sure that I won't be loosing alot of horse power with this. The great price I got for the header will make up for loosing a few horse but not a ton of them!
Would you agree? Is this lose probably very small? Like 5 HP or would it be larger than that?
I know to really answer this I need to put them on and test and compare. But, I am justing wanting to make sure that I won't be loosing alot of horse power with this. The great price I got for the header will make up for loosing a few horse but not a ton of them!
D
I have done back to back dyno testing on 427 street motors with 1 3/4 Vs 1 7/8 and didnt gain/lose any rwhp all other things being equal.
That is a rather large collector, but I think you would be fine.
That is a rather large collector, but I think you would be fine.
