[Fot] Question 2: (Maybe stupid?) Turning down a piston size

[MadMarx]

I think the difficult thing would be to match the skirt shape with a lathe.
As the sides of a piston is not straight that would be nothing that you can do
with normal tools.

http://www.tr4-racing.de/
One Ring to rule them all, One Ring to find them, One Ring to bring them all
in the green hell and bind them.

----- Original Message -----
From: "Scott Cypher" <spitfireracer at xsmail.com>
To: "Friends of Triumph" <fot at autox.team.net>
Sent: Wednesday, July 30, 2008 10:11 PM
Subject: [Fot] Question 2: (Maybe stupid?) Turning down a piston size


> I have +60 pistons I never intend on using given SCCA limits on over-
> sizing, but the pistons are too nice just to get rid of.
>
> Has anyone taken a set of oversize pistons and turned them & the ring
> grooves down to be +40 or even down to +10 or STD so they can be
> used?  I can understand the precision lathe-ing that would need to be
> done to make sure they are true, but has anyone ever tried this, good
> bad or indifferent?
>
> Thanks
>
> -Scott Cypher
> spitfireracer at xsmail.com
> SCCA #57 HP Spitfire 1500 #362573
> Reading, PA
> http://gallery.mac.com/srcypher
>
> 1971 Spit MkIV/1500 RaceCar
> 1971 TR6 TBD
> 1976 TR7 Street
> 1968 GT6 Vintage
>
> "I'm so excited I can barely sit still or hold a thought in my head.
> Its the excitement only a free man can feel.  A free man at the start
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