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Oil pressure drop #673480 04/18/10 08:37 AM 04/18/10 08:37 AM
Joined: Nov 2009 Posts: 101 NE MISSOURI P Purpleracer OP member
Purpleracer OP member P Joined: Nov 2009 Posts: 101 NE MISSOURI	Has anyone else experienced oil pressure drop when engine is warm with roller bearing rockers and Indy SR heads?

Re: Oil pressure drop [Re: Purpleracer] #673481 04/18/10 09:20 AM 04/18/10 09:20 AM
Joined: Mar 2005 Posts: 2,060 Pendleton NY T terzmo top fuel
terzmo top fuel T Joined: Mar 2005 Posts: 2,060 Pendleton NY	how much of a drop and under what conditions ?

Re: Oil pressure drop [Re: terzmo] #673482 04/18/10 10:28 AM 04/18/10 10:28 AM
Joined: Nov 2009 Posts: 101 NE MISSOURI P Purpleracer OP member
Purpleracer OP member P Joined: Nov 2009 Posts: 101 NE MISSOURI	It drops to about 30 PSI at 1200 RPM and goes back to 55 psi under acceleration. It use to run a range between 55 to 65 with iron heads and Crane adjustable rockers.

Re: Oil pressure drop [Re: Purpleracer] #673483 04/18/10 12:53 PM 04/18/10 12:53 PM
Joined: Mar 2008 Posts: 5,746 Ontario, Canada Dodgem master
Dodgem master Joined: Mar 2008 Posts: 5,746 Ontario, Canada	Yea the sr's really let a lot of oil in restricted it at the fittings in the back of the head to .050 or so.

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