Author Topic: Aircooled Heads update  (Read 1640 times)

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Aircooled Heads update
« on: February 25, 2005, 08:24:10 pm »
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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Offline Filx

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Re: Aircooled Heads update
« Reply #1 on: February 26, 2005, 01:22:23 pm »
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?

FAIL - First Attempt In Learning


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Re: Aircooled Heads update
« Reply #2 on: February 26, 2005, 01:57:33 pm »
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...