Oil restrictor size hp500
#31
Registered

Joined: Nov 2004
Posts: 14,090
Likes: 3,679
From: On A Dirt Floor
Rbesola -
Let me be frank here. Sorry Frank !
Will you please answer my question on oil psi I asked earlier. We need to clear this up to see if you even have a psi problem.
Plus, I'd really like to take off my helmet and leave the corner so I can go home.
Thank you.
Let me be frank here. Sorry Frank !
Will you please answer my question on oil psi I asked earlier. We need to clear this up to see if you even have a psi problem.
Plus, I'd really like to take off my helmet and leave the corner so I can go home.
Thank you.
#32
Registered

Joined: Nov 2004
Posts: 14,090
Likes: 3,679
From: On A Dirt Floor
Oil psi is good in the 75psi range running, 50ish idling. When I say I lose some oil pressure I don't mean zero, but it drops to 20-25 very briefly if I pull back hard which is enough for the light to come on which made me nervous. Not that I ever do but just for the sake of figuring out the issue. Also I just have some cheap push in breathers and thinking maybe a baffled valve cover or a little more length might solve some of that.
And right after this run you are at 50 psi idling ?
Your worry is a drop to 25lbs right when you pull the throttle back abruptly ?
=======================================
Do I win a booby prize for insisting on this when/where/why/how oil question ? LOL.
I'm now not seeing an oil psi problem.
======================================
On to the other part:
You have non baffled valve covers and possibly a non baffled breather ?
Last edited by SB; 11-11-2014 at 06:35 PM.
#33
Thread Starter
Registered

Joined: May 2011
Posts: 576
Likes: 1
From: Varna, IL
Oil psi is good in the 75psi range running, 50ish idling. When I say I lose some oil pressure I don't mean zero, but it drops to 20-25 very briefly if I pull back hard which is enough for the light to come on which made me nervous. Not that I ever do but just for the sake of figuring out the issue. Also I just have some cheap push in breathers and thinking maybe a baffled valve cover or a little more length might solve some of that.
#34
Thread Starter
Registered

Joined: May 2011
Posts: 576
Likes: 1
From: Varna, IL
Oil temp. Motors are mostly hp500s with the exception of 7.6cr je pistons, Manley h-beam rods crane cams and some arp hardware with mega blowers on top. Balanced rotating assy. Stock windage tray. No screens. Basically just back to what it was aside from what I listed.
#36
Registered
Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Okay...so....at the end of the 2 minutes at 6,000 rpm you are still at 75 psi ?
And right after this run you are at 50 psi idling ?
Your worry is a drop to 25lbs right when you pull the throttle back abruptly ?
=======================================
Do I win a booby prize for insisting on this when/where/why/how oil question ? LOL.
I'm now not seeing an oil psi problem.
======================================
On to the other part:
You have non baffled valve covers and possibly a non baffled breather ?
And right after this run you are at 50 psi idling ?
Your worry is a drop to 25lbs right when you pull the throttle back abruptly ?
=======================================
Do I win a booby prize for insisting on this when/where/why/how oil question ? LOL.
I'm now not seeing an oil psi problem.
======================================
On to the other part:
You have non baffled valve covers and possibly a non baffled breather ?
#38
Registered

Joined: Nov 2004
Posts: 14,090
Likes: 3,679
From: On A Dirt Floor
I took the idle comment not literally...as in a maybe low to mid 1000rpm in gear. Not a sub 1k idle/idle.
You thinking psi reg spring/disc hanging up ? Nah, cause this wouldn't increase psi at low rpm.
Bigger helmet this time.
You thinking psi reg spring/disc hanging up ? Nah, cause this wouldn't increase psi at low rpm.
Bigger helmet this time.
#39
Registered
Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Hey helmet boy with a HV pump at idle not 1000 rpm. That's way off idle it should have 70 psi + I think mine is 80@ 500 rpm 90 WOT after 30 miles of 6000 rpm and back to idle still have 80. There is something wrong. Might be something stupid like a Fram (non HP) filter...
#40
Registered
Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Possible but I don't see it getting whipped at idle unless he thought he would make his own 14qt pan out of his 8 qt pan by adding 6 more qts of oil.


