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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Everyone making good points, but just to th=
row this out there: we=E2=80=99ve built a couple of =E2=80=9Cbudget=E2=80=9D=
engines with cast flat top pistons to good effect. We shift at 6000 a=
nd have good life and good power (over 140 Hp at the wheels). So you can run=
those with no fear if set up correctly.<div>With forged pistons set to prop=
er clearance we would expect less sliding friction and hence more power ( th=
e pistons are the single biggest area of friction-based parasitic loss in an=
engine) due to both slipper design and less distortion under load for forge=
d pistons. Have been building an engine with Arias pistons (yes, they a=
re now owned by Carillo) - it=E2=80=99s been a work in progress for a while,=
and Dave now running Wiseco pistons.</div><div>You choose your path and mak=
e it work, just =E2=80=9Cdon=E2=80=99t be beaten by equipment!=E2=80=9D</div=
><div>Phil Gott<br><br><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D=
"ltr"><br><blockquote type=3D"cite">On Feb 4, 2023, at 3:06 AM, Chris Marx v=
ia Fot <fot@autox.team.net> wrote:<br><br></blockquote></div><blockquo=
te type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<meta http-equiv=3D"Content-Type"=
content=3D"text/html; charset=3Dutf-8"><meta name=3D"Generator" content=3D"=
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</o:shapelayout></xml><![endif]--><div class=3D"WordSection1"><p class=3D"Ms=
oNormal"><span lang=3D"DE">Hi Tony,<o:p></o:p></span></p><p class=3D"MsoNorm=
al"><span lang=3D"DE"><o:p> </o:p></span></p><p class=3D"MsoNormal">reg=
ardless what the manufacturer says I set forged pistons on 0,13mm clearance.=
<o:p></o:p></p><p class=3D"MsoNormal">Runs forever, never any issues, no pis=
ton slap. That=E2=80=99s my engine man recommended and so we did.<o:p></o:p>=
</p><p class=3D"MsoNormal">My TR4 runs on the same pistons now for 10 years w=
ith one change of rings inbetween.<o:p></o:p></p><p class=3D"MsoNormal"><o:p=
> </o:p></p><p class=3D"MsoNormal">On aluminum engines =E2=80=93 differ=
ent story.<o:p></o:p></p><p class=3D"MsoNormal"><o:p> </o:p></p><p clas=
s=3D"MsoNormal">Cheers<o:p></o:p></p><p class=3D"MsoNormal">Chris<o:p></o:p>=
</p><p class=3D"MsoNormal"><o:p> </o:p></p><div><div style=3D"border:no=
ne;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class=3D"Mso=
Normal"><b><span lang=3D"DE">Von:</span></b><span lang=3D"DE"> Fot <fot-b=
ounces@autox.team.net> <b>Im Auftrag von </b>Tony Sheach via Fot<br><b>Ge=
sendet:</b> Freitag, 3. Februar 2023 17:44<br><b>An:</b> DAVE HOGYE <dlho=
gye@comcast.net><br><b>Cc:</b> Erik Jacobsen via Fot <fot@autox.team.n=
et><br><b>Betreff:</b> Re: [Fot] Pistons<o:p></o:p></span></p></div></div=
><p class=3D"MsoNormal"><o:p> </o:p></p><p class=3D"MsoNormal">Hi folks=
<o:p></o:p></p><div><p class=3D"MsoNormal"><o:p> </o:p></p></div><div>=
<p class=3D"MsoNormal">I have a set of Wiseco 89mm pistons that i bought may=
be 10 years ago I was going to use in a torquey rally engine with a set of C=
arillo rods - is there an issue with piston / liner clearances as some have s=
aid ? Or is it just a question of not letting the engine run over hot ?<o:p>=
</o:p></p></div><div><p class=3D"MsoNormal"><o:p> </o:p></p></div><div>=
<p class=3D"MsoNormal">I have Venolia=E2=80=99s in my other bigger capacity e=
ngine and they have been great, but I=E2=80=99m not so sure about Uk supply a=
ny more. They also needed the longer Carillo rods, so if I go that route I e=
nd up with a set of pistons I don=E2=80=99t need.<o:p></o:p></p></div><div><=
p class=3D"MsoNormal"><o:p> </o:p></p></div><div><p class=3D"MsoNormal"=
>What=E2=80=99s the advice from the wise ?<o:p></o:p></p></div><div><p class=
=3D"MsoNormal"><o:p> </o:p></p></div><div><p class=3D"MsoNormal">Regard=
s<o:p></o:p></p></div><div><p class=3D"MsoNormal"><o:p> </o:p></p></div=
><div><p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">Tony <o:p><=
/o:p></p><div><p class=3D"MsoNormal">Sent from my iPad<o:p></o:p></p></div><=
div><p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><br>On 3 Feb 2023,=
at 16:22, DAVE HOGYE via Fot <<a href=3D"mailto:fot@autox.team.net";>fot@=
autox.team.net</a>> wrote:<o:p></o:p></p></div><div><p class=3D"MsoNormal=
">=EF=BB=BF <o:p></o:p></p><div><p class=3D"MsoNormal"><span style=3D"font-s=
ize:12.0pt;font-family:"Helvetica",sans-serif;color:#333333">I bel=
ieve that J&E owns Wiseco. The Kipp family in Ohio started Wiseco a=
nd owned it until a few years ago. I found this out when I called J&am=
p;E about ordering pistons, or I called Wiseco. Can't remember who I c=
alled first. Tom Kipp was a top AMA Super Sports and Super Bike racer d=
uring the '90s. Wiseco was a big sponsor of AMA and might still be.&nb=
sp; I installed a Wiseco 1200cc piston kit in my '93 H-D Sportster way back i=
n the '90s. <o:p></o:p></span></p></div><div><p class=3D"MsoNormal"><s=
pan style=3D"font-size:12.0pt;font-family:"Helvetica",sans-serif;c=
olor:#333333">Dave H. <o:p></o:p></span></p></div><blockquote style=3D=
"margin-top:5.0pt;margin-bottom:5.0pt"><div><p class=3D"MsoNormal">On 02/03/=
2023 4:41 AM Erik Jacobsen via Fot <<a href=3D"mailto:fot@autox.team.net"=
>fot@autox.team.net</a>> wrote: <o:p></o:p></p></div><div><p class=3D"Mso=
Normal"><o:p> </o:p></p></div><div><p class=3D"MsoNormal"><o:p> </=
o:p></p></div><div><div><p class=3D"MsoNormal"><span style=3D"font-size:12.0=
pt;font-family:"Helvetica",sans-serif"><o:p> </o:p></span></p=
></div></div><p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt"><o:p>&nbs=
p;</o:p></p></blockquote><p class=3D"MsoNormal" style=3D"margin-bottom:12.0p=
t">_______________________________________________<br><a href=3D"mailto:fot@=
autox.team.net">fot@autox.team.net</a><br><br><a href=3D"http://www.fot-raci=
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