Unequal & Equal Length Tubular Headers...
24 May 2010, 07:47 PM
#1
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Unequal & Equal Length Tubular Headers...
Which are best for performance?
I've got equal length ScoobySport ones at the minute, but i'm missing my 'burble' so guna swap them to unequal tubular/ported ones... I wont be, however, if its going to be detremental (spelling!) to performance.
Cheers, Mark
I've got equal length ScoobySport ones at the minute, but i'm missing my 'burble' so guna swap them to unequal tubular/ported ones... I wont be, however, if its going to be detremental (spelling!) to performance.
Cheers, Mark
24 May 2010, 07:52 PM
#2
Unequal are still good for up to 400bhp I believe. And also, you're better off with polished and ported OEM ones, such as those sold off the shelf by harvey. PM/email him with your full engine spec, and he'll advise and also advise on the most appropriate ported uppipe for your spec, so as to retain max spool too... 
Fitting tubular ones, if below c.400bhp, can be detrimental to bhp gains/spool-up and a could actually be a "backward step".
Fitting tubular ones, if below c.400bhp, can be detrimental to bhp gains/spool-up and a could actually be a "backward step".
Last edited by joz8968; 24 May 2010 at 07:57 PM.
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