Aircooled Heads update

Started by notagain, February 25, 2005, 08:24:10 PM

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notagain

Thought some of you might be interested in these. The flow chart and pic is of my new heads that are sailing from Canada in a week or two. Compared to the old ones they have much better flow at the bottom end (torque baby) and more at the top end (HP). They have a smaller port volume than my old heads, which promotes better airspeed and better VE. Valve size is 44mm on the in and 37.5 on the out.

They have a 4 angle valve job and should be good for 180 - 200 hp, depending on my tuning ability !!

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Filx

They look very sweet. What sort of cam specs are you using to get that power? When you say "tuning" are you using efi or carbs?

Cheers
FAIL - First Attempt In Learning

notagain

A CB performance K8 copy cam. About .555" lift and 260 duration @.050". Tuning - Carbs. Takes a while to get it right on the money, jetting, timing, plug gaps etc...