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Anyone used Extrude Honing or Abrasive flow machining (AFM)

795 Views 3 Replies 3 Participants Last post by  The Ring-In
I was talking to Adam from about getting a set of heads done, he happend to have a pair there he was hand doing for a customer but said he would start extrude honing them if there was enough interest, obviously price would depend on how many he had lined up. He does all the top mx bikes here in Aus and seem to think the TL head would be very suitable and benefit well from extrude honing and would be a better option than manual porting. So has anyboy used this before and would anybody be interested in getting it done?
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There is a possibility you may even lose performance on a tl head with this process.

they are VERY good std.

I have posted the flow figures of both round and small port heads as well as some ported for me by geoff chesterton.

on the road at the moment but when i'm home you may want to talk about them .
I think it would be interesting to see a before and after chart. There used to be a lot of talk about this over here (US), especially in the hot rod world, but I haven't heard a lot about it for quite some time.
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