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Brian,
My first guess is a sticky oil pressure relief valve that loosens up =
once warm. I=92m not sure how you could test it, but perhaps you can =
swap in a different one.
Duncan Charlton
Elgin, Texas USA
> On Oct 5, 2016, at 6:10 PM, Brian <britracer89@yahoo.com> wrote:
>=20
> New motor. 12:1 comp. At cold start up oil pressure fluctuates from =
20-60psi. Once warm (approx 180 deg Fahrenheit) pressure is consistent =
with rpm increase. At idle hot is 60psi. Upwards of 100psi at 5000rpm. =
5-7k is were it will rev during race condition.=20
> Now FYI - this is the first motor by the book with precise measures. =
Previously it's been "well this is what I can afford" . Getting older =
and get tired working the wheel so thought I'd try something a little =
different.=20
> My concern is the cold oil psi fluctuation and the higher than =
previous high rev psi.
>=20
> Thoughts please. Before I tow it to northern VT for hill climb next =
week.
> Thanks,=20
> Brian=20
> Foster, RI
> _______________________________________________
> fot@autox.team.net
>=20
> http://www.fot-racing.com
>=20
> Donate: http://www.team.net/donate.html
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>=20
>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Brian,<div class=3D""><br class=3D""></div><div class=3D"">My =
first guess is a sticky oil pressure relief valve that loosens up once =
warm. I=92m not sure how you could test it, but perhaps you can =
swap in a different one.</div><div class=3D""><br class=3D""><div =
class=3D"">
<div class=3D"">Duncan Charlton</div><div class=3D"">Elgin, Texas =
USA</div><div class=3D""><br class=3D""></div><br =
class=3D"Apple-interchange-newline">
</div>
<br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Oct 5, 2016, at 6:10 PM, Brian <<a =
href=3D"mailto:britracer89@yahoo.com"; =
class=3D"">britracer89@yahoo.com</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><meta =
http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dwindows-1252" =
class=3D""><div class=3D""><div class=3D""><div style=3D"font-family: =
Calibri,sans-serif; font-size: 11pt;" class=3D"">New motor. 12:1 comp. =
At cold start up oil pressure fluctuates from 20-60psi. Once warm =
(approx 180 deg Fahrenheit) pressure is consistent with rpm increase. At =
idle hot is 60psi. Upwards of 100psi at 5000rpm. 5-7k is were it will =
rev during race condition. <br class=3D"">Now FYI - this is the first =
motor by the book with precise measures. Previously it's been "well this =
is what I can afford" . Getting older and get tired working the wheel so =
thought I'd try something a little different. <br class=3D"">My concern =
is the cold oil psi fluctuation and the higher than previous high rev =
psi.<br class=3D""><br class=3D"">Thoughts please. Before I tow it to =
northern VT for hill climb next week.<br class=3D"">Thanks, <br =
class=3D"">Brian <br class=3D"">Foster, RI<br =
class=3D""></div></div></div>_____________________________________________=
__<br class=3D""><a href=3D"mailto:fot@autox.team.net"; =
class=3D"">fot@autox.team.net</a><br class=3D""><br =
class=3D"">http://www.fot-racing.com<br class=3D""><br class=3D"">Donate: =
http://www.team.net/forums<br class=3D"">Unsubscribe/Manage: =
http://autox.team.net/mailman/options/fot/duncan.charlton54@gmail.com<br =
class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br =
class=3D""></div></body></html>=
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