will121
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| posted on 1/8/10 at 08:43 PM |
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exhaust diameter/max bhp
anyone know of a rule of thumb for exhaust system diameter/max bhp for a normally aspirated exhaust system on a tin top, i currently have a 2.5"
system which is a bit noisy and want to swap it to a 2" system but wonder if a 2" system is to small for 180bhp??
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Dave Bailey
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| posted on 1/8/10 at 08:46 PM |
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I hope not I have just gone 2"... It was recommended to me by an exhaust manufacturer...
Dave B
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PSpirine
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| posted on 1/8/10 at 08:47 PM |
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You may notice a slight drop off at the top end, but I'd say that your choice of silencers will play a bigger role.
We used to fit 3" pipes on 300hp turbo nissans to give you an idea.
I wouldn't worry about it to be honest!
[Edited on 1/8/10 by PSpirine]
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franky
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| posted on 1/8/10 at 09:11 PM |
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its more to do with engine(cc) size then broken down into cylinder size(cc per bore) and max rpm and where you want the power.
Its a huge area to cover as such there's no rule of thumb.
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