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Are you running an accusump and have you preloaded the pressure setting
correctly? Incorrect setup will cause the oil pressure to fluctuate.
On Thu, Oct 6, 2016 at 1:28 PM, Duncan Charlton <duncan.charlton54@gmail.co=
m
> wrote:
> Brian,
>
> My first guess is a sticky oil pressure relief valve that loosens up once
> warm. I=E2=80=99m not sure how you could test it, but perhaps you can sw=
ap in a
> different one.
>
> Duncan Charlton
> Elgin, Texas USA
>
>
>
> On Oct 5, 2016, at 6:10 PM, Brian <britracer89@yahoo.com> wrote:
>
> New motor. 12:1 comp. At cold start up oil pressure fluctuates from
> 20-60psi. Once warm (approx 180 deg Fahrenheit) pressure is consistent wi=
th
> rpm increase. At idle hot is 60psi. Upwards of 100psi at 5000rpm. 5-7k is
> were it will rev during race condition.
> 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.
> My concern is the cold oil psi fluctuation and the higher than previous
> high rev psi.
>
> Thoughts please. Before I tow it to northern VT for hill climb next week.
> Thanks,
> Brian
> Foster, RI
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">Are=
you running an accusump and have you preloaded the pressure setting correc=
tly?=C2=A0 Incorrect setup will cause the oil pressure to fluctuate.</div><=
/div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Thu, Oct =
6, 2016 at 1:28 PM, Duncan Charlton <span dir=3D"ltr"><<a href=3D"mailto=
:duncan.charlton54@gmail.com" target=3D"_blank">duncan.charlton54@gmail.com=
</a>></span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin=
:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style=3D"word=
-wrap:break-word">Brian,<div><br></div><div>My first guess is a sticky oil =
pressure relief valve that loosens up once warm.=C2=A0 I=E2=80=99m not sure=
how you could test it, but perhaps you can swap in a different one.</div><=
div><br><div>
<div>Duncan Charlton</div><div>Elgin, Texas USA</div><div><br></div><br cla=
ss=3D"m_-7453972624223047048Apple-interchange-newline">
</div>
<br><div><blockquote type=3D"cite"><span class=3D""><div>On Oct 5, 2016, at=
6:10 PM, Brian <<a href=3D"mailto:britracer89@yahoo.com"; target=3D"_bla=
nk">britracer89@yahoo.com</a>> wrote:</div><br class=3D"m_-7453972624223=
047048Apple-interchange-newline"></span><div><span class=3D""><div><div><di=
v style=3D"font-family:Calibri,sans-serif;font-size:11pt">New motor. 12:1 c=
omp. At cold start up oil pressure fluctuates from 20-60psi. Once warm (app=
rox 180 deg Fahrenheit) pressure is consistent with rpm increase. At idle h=
ot is 60psi. Upwards of 100psi at 5000rpm. 5-7k is were it will rev during =
race condition. <br>Now FYI - this is the first motor by the book with prec=
ise measures. Previously it's been "well this is what I can afford=
" . Getting older and get tired working the wheel so thought I'd t=
ry something a little different. <br>My concern is the cold oil psi fluctua=
tion and the higher than previous high rev psi.<br><br>Thoughts please. Bef=
ore I tow it to northern VT for hill climb next week.<br>Thanks, <br>Brian =
<br>Foster, RI<br></div></div></div></span>______________________________<w=
br>_________________<br><a href=3D"mailto:fot@autox.team.net"; target=3D"_bl=
ank">fot@autox.team.net</a><br><br><a href=3D"http://www.fot-racing.com"; ta=
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<br></blockquote></div><br></div>
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