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<p class="MsoNormal">We fit the pistons in our 250cc two stroke GP racer at .002 using Japanese pistons and turned 12 to 15k rpm…never cold get a Wiseco or other non-Japanese piston to tolerate that clearance<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Fot <fot-bounces@autox.team.net> <b>On Behalf Of
</b>fubog1 via Fot<br>
<b>Sent:</b> Saturday, February 4, 2023 2:31 PM<br>
<b>To:</b> fot@autox.team.net<br>
<b>Subject:</b> Re: [Fot] Pistons<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">I set the JE pistons w/coated skirts torque-plated to .004, much less than that I often find some skirt scuffing.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Glen Efinger<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">-----Original Message-----<br>
From: Joe Boruch via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>><br>
To: FOT Triumph <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>><br>
Sent: Sat, Feb 4, 2023 9:09 am<br>
Subject: Re: [Fot] Pistons<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:black">Tony, I was running 0.004" piston clearance back when I had the Wisecos. Do you have a spec sheet with them? Chris replied that he uses 0.13mm which is 0.005"
with forged pistons. 0.005 would probably have been better with my Wisecos. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:black">I use 0.004" with my Diamonds and my Miata with Ross pistons uses 0.004". Both are forged. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:black">JoeB<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">On Friday, February 3, 2023 at 11:27:06 PM EST, Tony Sheach via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Hi folks
<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">I have a set of Wiseco 89mm pistons that i bought maybe 10 years ago I was going to use in a torquey rally engine with a set of Carillo rods - is there an issue
with piston / liner clearances as some have said ? Or is it just a question of not letting the engine run over hot ?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">I have Venolia’s in my other bigger capacity engine and they have been great, but I’m not so sure about Uk supply any more. They also needed the longer Carillo
rods, so if I go that route I end up with a set of pistons I don’t need.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">What’s the advice from the wise ?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Regards<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Tony <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">Sent from my iPad<o:p></o:p></span></p>
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On 3 Feb 2023, at 16:22, DAVE HOGYE via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333">I believe that J&E owns Wiseco. The Kipp family in Ohio started Wiseco and owned it until a few years ago. I found this out when I called J&E about ordering
pistons, or I called Wiseco. Can't remember who I called first. Tom Kipp was a top AMA Super Sports and Super Bike racer during the '90s. Wiseco was a big sponsor of AMA and might still be. I installed a Wiseco 1200cc piston kit in my '93 H-D Sportster
way back in the '90s. <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Helvetica",sans-serif;color:#333333">Dave H.
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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#26282A">On 02/03/2023 4:41 AM Erik Jacobsen via Fot <<a href="mailto:fot@autox.team.net">fot@autox.team.net</a>> wrote:
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