The Bogan Posted May 28, 2012 Share Posted May 28, 2012 Im running around 90 psi or 6 bar at around 6000rpm, Im wondering if this may be causing some of my oil problems, Ive read that some are running 70 psi, Im able to lower my oil pressure by a bleed system and Im wondering what would be the best/safest psi to run.. What oil pressures are you guys/girls running. Thanks, Mark Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/ Share on other sites More sharing options...
abr33 Posted May 28, 2012 Share Posted May 28, 2012 Depends on your oil type, weight, crank clearance etc, im running 2.5 thou journal clearance and redline 15w/50 with pump (tomei) at 65 (more like 70) psi. What pump are you using? Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6374838 Share on other sites More sharing options...
The Bogan Posted May 28, 2012 Author Share Posted May 28, 2012 Depends on your oil type, weight, crank clearance etc, im running 2.5 thou journal clearance and redline 15w/50 with pump (tomei) at 65 (more like 70) psi. What pump are you using? Tomei pump 10 - 40 oil in a newish (5000k) motor Thanks, Mark Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6374853 Share on other sites More sharing options...
abr33 Posted May 28, 2012 Share Posted May 28, 2012 Lucky, no need to take motor out to adjust it :-) In my opinion, provided your not making alot over 300-350 kw 70 psi will be ok, Double check this, i may be incorrect. Oh and is it an ester synthetic oil or cheaper synthetic? Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6375083 Share on other sites More sharing options...
The Bogan Posted May 28, 2012 Author Share Posted May 28, 2012 Lucky, no need to take motor out to adjust it :-) In my opinion, provided your not making alot over 300-350 kw 70 psi will be ok, Double check this, i may be incorrect. Oh and is it an ester synthetic oil or cheaper synthetic? making 350 on low boost and about 380 on high ATM, the oil is Nulon. Thanks, Mark Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6375107 Share on other sites More sharing options...
The Dan Posted May 28, 2012 Share Posted May 28, 2012 Your oil pressure is fine don't touch it Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6375190 Share on other sites More sharing options...
kitto Posted May 29, 2012 Share Posted May 29, 2012 High oil pressure is better than low oil pressure. 90 lb @ 6,000rpm is pretty good though. Shows that your engine wasnt built with stupidly large clearances. Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6375403 Share on other sites More sharing options...
abr33 Posted May 29, 2012 Share Posted May 29, 2012 Ok thats a shit of a lot of power lol. 90 is alright imo. Food for thought is v8's that typically have 5 main journals that are usually similar size to an rb which has 7.. and most run 60 ish psi with average oil. And for similar outputs it works perfectly for alot of them. Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376008 Share on other sites More sharing options...
The Bogan Posted May 29, 2012 Author Share Posted May 29, 2012 I may look at getting a lighter synth oil (for drainage), and knocking the oil pressure down to about 80 psi, . I need to do something to slow the volume oil getting into the head. Thanks for the info, Mark Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376267 Share on other sites More sharing options...
abr33 Posted May 29, 2012 Share Posted May 29, 2012 lighter will increase the amount in your head, i found this before fitting restrictors etc when i had an n1 pump, lighter atomises and blows out easier, also more will get to the head and so on... I learned it wont help lol. Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376307 Share on other sites More sharing options...
The Bogan Posted May 29, 2012 Author Share Posted May 29, 2012 lighter will increase the amount in your head, i found this before fitting restrictors etc when i had an n1 pump, lighter atomises and blows out easier, also more will get to the head and so on... I learned it wont help lol. Nothing is ever easy is it, what weight oil you using now ? Thanks, Mark Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376402 Share on other sites More sharing options...
The Dan Posted May 29, 2012 Share Posted May 29, 2012 I may look at getting a lighter synth oil (for drainage), and knocking the oil pressure down to about 80 psi, . I need to do something to slow the volume oil getting into the head. Thanks for the info, Mark You're fixing the wrong thing Fix the breathing problem your engine has, not the oil pumping thing it's supposed to do Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376539 Share on other sites More sharing options...
The Dan Posted May 29, 2012 Share Posted May 29, 2012 lighter will increase the amount in your head, i found this before fitting restrictors etc when i had an n1 pump, lighter atomises and blows out easier, also more will get to the head and so on... I learned it wont help lol. That statement is more incorrect than 10 incorrect things Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376541 Share on other sites More sharing options...
r33_racer Posted May 29, 2012 Share Posted May 29, 2012 That statement is more incorrect than 10 incorrect things And that statement couldnt be more correct! Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376809 Share on other sites More sharing options...
The Bogan Posted May 29, 2012 Author Share Posted May 29, 2012 You're fixing the wrong thing Fix the breathing problem your engine has, not the oil pumping thing it's supposed to do Leak down was good, I cannot remember reading but it was apparently OK, head drains were drilled out, has - 12 head drains/vents to sump, has - 12 return from catch can to sump, has 1 x 0.8mm restrictor for the head feed, 1 x 0.6mm for the VCT. The motor was pulled and tolerances double checked. Its fine at the drags, the only time it isnt is when Im getting up it hard and going around corners. I dont know what else to do, my brain hurts bad.. Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6376814 Share on other sites More sharing options...
abr33 Posted May 30, 2012 Share Posted May 30, 2012 That statement is more incorrect than 10 incorrect things Like I said, I found this on my engine originally. Between running 5w/30 and 10w/60, the lighter was an absolute oil spewing mess, the thicker pumped some out but nothing like the 5w/30. So how do you figure this? Im not saying its the solution by any means, but thats what I personally experienced so my statement stands. Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6377805 Share on other sites More sharing options...
The Dan Posted May 30, 2012 Share Posted May 30, 2012 lighter atomises and blows out easier More specifically this Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6378401 Share on other sites More sharing options...
abr33 Posted May 31, 2012 Share Posted May 31, 2012 More specifically this Ok, it seemed to blow out more as oil in vapour and paint the whole engine bay, well, how i see it anyways, that was the 5w/30 (all edge sport) then the 0w/40 was a tiny bit thicker and sorta ran out more than spray and then 10w/60 used to just dribble a bit.. Thats how I came to such a conclusion Link to comment https://www.sau.com.au/forums/topic/401258-what-oil-pressure-do-you-have-at-around-6000rpm/#findComment-6379402 Share on other sites More sharing options...
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