Oil Pressure ???

tin-bits Casual Dubber

45 posts · joined Sep 2009 · 8 Jul 2012, 5:16 pm

#911627

I know this is a how long is a piece of string question but here goes.

What would be normal oil pressure expected in the following setup.

New build 1835 twin 40 webbers scat C35 cam running full flow external filter and cooler and motor is now holding approx 4.5 ltrs of oil

Cold startup 29 psi
Warn idle 14.5 psi
Hot idle 11 psi

Cheers Ian

h fractals - an ever changing lifestyle

7,671 posts · joined Feb 2005 · 8 Jul 2012, 5:19 pm

#911630

hmmm
If it takes a week to walk a fortnight
how long is a piece of string..
indeed ??

mate..
how about you put your data up here n peeps in the know may be able to give you some ideas?

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vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 8 Jul 2012, 6:05 pm

#911644

What oil pressure is it at 3000RPM, 11 PSI at hot idle sounds alright, my 2054 is 20PSI at hot idle and 60PSI at 3000RPM.

grumble Son of Jim - Creator of Good

2,672 posts · joined Jun 2008 · 8 Jul 2012, 6:15 pm

#911650

Another few more factors that will affect the pressure are the bearing clearances,oil pump (HD 30mm gears or std),the length of the oil pressure relief valve springs,ignition timing and the oil operating temperature.

vwo60 Veteran Volks Folk

2,036 posts · joined Feb 2007 · 10 Jul 2012, 10:47 am

#911914

What is your oil pressure at 3000RPM.