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So, just to follow up. Thanks for those that replied.=C2=A0
As for the fluctuation, Kas mentioned possible debris in the pressure relie=
f valve. I cleaned it out although I did not find any debris.=C2=A0
I also replaced the spring with a stock spring. I had been running a HD spr=
ing.=C2=A0
Result, steady pressure.
Still had excessive pressure. Played with various copper washers with diffe=
rent thicknesses. Was able to get 45psi at hot idle 1500rpm and 95psi at ho=
t 6000 rpm. =C2=A0
Off to the races we go. New motor was good for first in class up Mt. Philo =
VT.
Thanks again.Brian
=20
From: John Styduhar <johnstydo@gmail.com>
To: Duncan Charlton <duncan.charlton54@gmail.com>=20
Cc: Brian <britracer89@yahoo.com>; FOT <fot@autox.team.net>
Sent: Monday, October 10, 2016 8:47 PM
Subject: Re: [Fot] Gt6 oil pressure?
=20
Are you running an accusump and have you preloaded the pressure setting cor=
rectly?=C2=A0 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 w=
arm.=C2=A0 I=E2=80=99m not sure how you could test it, but perhaps you can =
swap in a different one.
Duncan CharltonElgin, 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 20-60ps=
i. Once warm (approx 180 deg Fahrenheit) pressure is consistent with rpm in=
crease. 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. Previo=
usly it's been "well this is what I can afford" . Getting older and get tir=
ed 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 hig=
h rev psi.
Thoughts please. Before I tow it to northern VT for hill climb next week.
Thanks,=20
Brian=20
Foster, RI
______________________________ _________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
ton54@ gmail.com
______________________________ _________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
ail. com
=20
=20
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<html><head></head><body><div style=3D"color:#000; background-color:#fff; f=
ont-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, =
sans-serif;font-size:16px"><div id=3D"yui_3_16_0_ym19_1_1476832926413_49841=
"><span id=3D"yui_3_16_0_ym19_1_1476832926413_49950">So, just to follow up.=
Thanks for those that replied. </span></div><div id=3D"yui_3_16_0_ym1=
9_1_1476832926413_49841"><span><br></span></div><div id=3D"yui_3_16_0_ym19_=
1_1476832926413_49841"><span id=3D"yui_3_16_0_ym19_1_1476832926413_49948">A=
s for the fluctuation, Kas mentioned possible debris in the pressure relief=
valve. I cleaned it out although I did not find any debris. </span></=
div><div id=3D"yui_3_16_0_ym19_1_1476832926413_49841"><span><br></span></di=
v><div id=3D"yui_3_16_0_ym19_1_1476832926413_49841" dir=3D"ltr"><span id=3D=
"yui_3_16_0_ym19_1_1476832926413_50425">I also replaced the spring with a s=
tock spring. I had been running a HD spring. </span></div><div id=3D"y=
ui_3_16_0_ym19_1_1476832926413_49841" dir=3D"ltr"><span><br></span></div><d=
iv id=3D"yui_3_16_0_ym19_1_1476832926413_49841" dir=3D"ltr"><span>Result, s=
teady pressure.</span></div><div id=3D"yui_3_16_0_ym19_1_1476832926413_4984=
1" dir=3D"ltr"><span><br></span></div><div id=3D"yui_3_16_0_ym19_1_14768329=
26413_49841" dir=3D"ltr"><span id=3D"yui_3_16_0_ym19_1_1476832926413_50426"=
>Still had excessive pressure. Played with various copper washers with diff=
erent thicknesses. Was able to get 45psi at hot idle 1500rpm and 95psi at h=
ot 6000 rpm. </span></div><div class=3D"qtdSeparateBR" id=3D"yui_3_16=
_0_ym19_1_1476832926413_49816"><br></div><div class=3D"qtdSeparateBR" id=3D=
"yui_3_16_0_ym19_1_1476832926413_49816">Off to the races we go. New motor w=
as good for first in class up Mt. Philo VT.</div><div class=3D"qtdSeparateB=
R" id=3D"yui_3_16_0_ym19_1_1476832926413_49816"><br></div><div class=3D"qtd=
SeparateBR" id=3D"yui_3_16_0_ym19_1_1476832926413_49816">Thanks again.</div=
><div class=3D"qtdSeparateBR" id=3D"yui_3_16_0_ym19_1_1476832926413_49816">=
Brian<br><br></div><div class=3D"yahoo_quoted" id=3D"yui_3_16_0_ym19_1_1476=
832926413_49846" style=3D"display: block;"> <blockquote style=3D"border-lef=
t: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-l=
eft: 5px;" id=3D"yui_3_16_0_ym19_1_1476832926413_49845"> <div style=3D"font=
-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sa=
ns-serif; font-size: 16px;" id=3D"yui_3_16_0_ym19_1_1476832926413_49844"> <=
div style=3D"font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, =
Lucida Grande, sans-serif; font-size: 16px;" id=3D"yui_3_16_0_ym19_1_147683=
2926413_49843"> <div dir=3D"ltr" id=3D"yui_3_16_0_ym19_1_1476832926413_4984=
2"> <font size=3D"2" face=3D"Arial" id=3D"yui_3_16_0_ym19_1_1476832926413_4=
9848"> <hr size=3D"1" id=3D"yui_3_16_0_ym19_1_1476832926413_49847"> <b><spa=
n style=3D"font-weight:bold;">From:</span></b> John Styduhar <johnstydo@=
gmail.com><br> <b><span style=3D"font-weight: bold;">To:</span></b> Dunc=
an Charlton <duncan.charlton54@gmail.com> <br><b><span style=3D"font-=
weight: bold;">Cc:</span></b> Brian <britracer89@yahoo.com>; FOT <=
fot@autox.team.net><br> <b><span style=3D"font-weight: bold;">Sent:</spa=
n></b> Monday, October 10, 2016 8:47 PM<br> <b><span style=3D"font-weight: =
bold;">Subject:</span></b> Re: [Fot] Gt6 oil pressure?<br> </font> </div> <=
div class=3D"y_msg_container"><br><div id=3D"yiv1344518869"><div><div dir=
=3D"ltr"><div class=3D"yiv1344518869gmail_default" style=3D"font-size:small=
;">Are you running an accusump and have you preloaded the pressure setting =
correctly? Incorrect setup will cause the oil pressure to fluctuate.<=
/div></div><div class=3D"yiv1344518869gmail_extra"><br clear=3D"none"><div =
class=3D"yiv1344518869gmail_quote">On Thu, Oct 6, 2016 at 1:28 PM, Duncan C=
harlton <span dir=3D"ltr"><<a rel=3D"nofollow" shape=3D"rect" ymailto=3D=
"mailto:duncan.charlton54@gmail.com"; target=3D"_blank" href=3D"mailto:dunca=
n.charlton54@gmail.com">duncan.charlton54@gmail.com</a>></span> wrote:<b=
r clear=3D"none"><blockquote class=3D"yiv1344518869gmail_quote" style=3D"ma=
rgin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class=3D=
"yiv1344518869yqt3215344883" id=3D"yiv1344518869yqt74656"><div style=3D"wor=
d-wrap:break-word;">Brian,<div><br clear=3D"none"></div><div>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 swap in a di=
fferent one.</div><div><br clear=3D"none"><div>
<div>Duncan Charlton</div><div>Elgin, Texas USA</div><div><br clear=3D"none=
"></div><br clear=3D"none" class=3D"yiv1344518869m_-7453972624223047048Appl=
e-interchange-newline">
</div>
<br clear=3D"none"><div><blockquote type=3D"cite"><span class=3D"yiv1344518=
869"></span><div>On Oct 5, 2016, at 6:10 PM, Brian <<a rel=3D"nofollow" =
shape=3D"rect" ymailto=3D"mailto:britracer89@yahoo.com"; target=3D"_blank" h=
ref=3D"mailto:britracer89@yahoo.com";>britracer89@yahoo.com</a>> wrote:</=
div><br clear=3D"none" class=3D"yiv1344518869m_-7453972624223047048Apple-in=
terchange-newline"><div><span class=3D"yiv1344518869"></span><div><div><div=
style=3D"font-family:Calibri, sans-serif;font-size:11pt;">New motor. 12:1 =
comp. At cold start up oil pressure fluctuates from 20-60psi. Once warm (ap=
prox 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 clear=3D"none">Now FYI - this is the first motor by th=
e 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 clear=3D"none">My concern is the cold oi=
l psi fluctuation and the higher than previous high rev psi.<br clear=3D"no=
ne"><br clear=3D"none">Thoughts please. Before I tow it to northern VT for =
hill climb next week.<br clear=3D"none">Thanks, <br clear=3D"none">Brian <b=
r clear=3D"none">Foster, RI<br clear=3D"none"></div></div></div>___________=
___________________ _________________<br clear=3D"none"><a rel=3D"nofollow"=
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r clear=3D"none"><a rel=3D"nofollow" shape=3D"rect" target=3D"_blank" href=
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one"><br clear=3D"none">Donate: <a rel=3D"nofollow" shape=3D"rect" target=
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><br clear=3D"none">______________________________ _________________<br cle=
ar=3D"none">
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Archive: http://www.team.net/archive
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