Re: (tech) Extrude honing

[Ron Pieper <rapieper@yahoo.com>]

My $0.02...I trust ExtrudeHone...the results are very
dependent on what the owner asked for in the first
place.  Perhaps he/she simply specified that too much
be removed?  For different polymers, abrasives, and
cycles, the ExtrudeHone process can be tightly
controlled.  It can be set up to polish a surface or
remove higher amounts of material. I'd ask either
ExtrudeHone themselves or the shops with their
equipment.  It's one hell of a novel machining
process.

Ron

--- Ben Rogowski <bgr13@mn.rr.com> wrote:
> No first hand experience with it, but I've heard bad
> things about Extrude
> honing the 16V head.  Apparently it takes away too
> much material and
> actually causes the head to flow less than stock. 
> It may be a good bet for
> the exh. manifold though.  There's a fair amount of
> excess there and the
> shape of the ports/tubes is less critical through
> the manifold.
> 
> Ben R
> '79 Scirocco 1.8 16V
> '86.5 Quantum Syncro Wagon
> '00 Suzuki SV650
> 
> 
> 
> Anyone had any experience with this process on the
> head/ exhaust manifold of
> a
> 1.8L 16V? How expensive? TIA, Cathy
> 
>
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