1 reply to this topic

[HUBBA.HUBBA]

Sport spec Head with valve sizes 35.7 inlet, 29.5 outlet compared to race spec with 35.7 inlet, 31 outlet.
I know the inlets at the same size but, would the race spec still work better than the sport spec using a super charger?
Cheers

Edited by HUBBA.HUBBA, 06 November 2011 - 07:50 PM.

[Turbo Phil]

There is an advantage to be seen when using the larger ex valve, yes. But it leaves little material between the valves when used with a 36mm inlet, unless the exhaust is offset of course ....
Saying that decent results can still be had with the smaller ex