header primary size
#1
Motorhead
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header primary size
Could any of you please tell me what size the primary tubes are on a typical run of the mill street header (1985 GSL 12A)? I searched and couldn't find it. Thanks!
#2
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your "run of the mill" header is actually a plain ol' manifold that doesn't have runners/ tubes. it's a log.
if you are referring to a performance header, i believe the average size is 2".
if you are referring to a performance header, i believe the average size is 2".
#3
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Originally Posted by FB II
your "run of the mill" header is actually a plain ol' manifold that doesn't have runners/ tubes. it's a log.
if you are referring to a performance header, i believe the average size is 2".
if you are referring to a performance header, i believe the average size is 2".
#4
GSSL-SE
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If by primaries you mean each tube before they collect, I think I read somewhere that racers use 100" primaries for optimum power, but If you search there are a few good threads to read such as an awesome one on pressure wave tuning, and probably some that will pop up if you search header primary tooo.
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