[Fot] 89MM piston question

[John Styduhar]

If you really had serious compliance with most group's rules, I would guess
half the TR cars would not pass muster.  Let's have fun together.


On Sat, Sep 1, 2018 at 9:40 AM Terry Stetler via Fot <fot at autox.team.net>
wrote:

> Indeed there are Glen.
>
>
>
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> ------------------------------
> *From:* Fot <fot-bounces at autox.team.net> on behalf of fubog1 via Fot <
> fot at autox.team.net>
> *Sent:* Saturday, September 1, 2018 7:34:26 AM
> *To:* rkramer56 at gmail.com
> *Cc:* fot at autox.team.net
> *Subject:* Re: [Fot] 89MM piston question
>
>
> everybody else seems to be using 89.
>
> HaHa not everybody, rules say 87mm, there are still a few guys running
> them (and winning)...
> Glen
>
>
>
> -----Original Message-----
> From: Bob Kramer via Fot <fot at autox.team.net>
> To: van.mulders.marcel <van.mulders.marcel at telenet.be>
> Cc: fot <fot at autox.team.net>
> Sent: Fri, Aug 31, 2018 11:26 pm
> Subject: Re: [Fot] 89MM piston question
>
> I've always used 87 MM due to the rules but everybody else seems to be
> using 89. The procedures are the same so It'll be the same. I blew a head
> gasket last time out, compression into the cooling system and blew off the
> bottom hose. I guess it wasn't tight enough, and scuffed two pistons
> before I could shut it down.
>
> Bob Kramer
>
> On Fri, Aug 31, 2018 at 12:43 PM, <van.mulders.marcel at telenet.be> wrote:
>
> Bob,
> It is definitely necessary to make that modification to the liners. The
> relieve should correspond to the shape of the combustion chambers : about 4
> mm wide on a 89mm engine.
> Marcel
>
> ------------------------------
> *Van: *"fot" <fot at autox.team.net>
> *Cc: *"fot" <fot at autox.team.net>
> *Verzonden: *Donderdag 30 augustus 2018 00:05:43
> *Onderwerp: *[Fot] 89MM piston question
>
> Do the guys running the 89MM pistons and liners need to relieve the liners
> to clear the intake valve, or does the extra MM make the difference?
>
> Bob Kramer
>
> On Tue,
>
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