Tom,
This is an old time racer's trick to raise the oil pressure as you
speculated. It is not sophisticated, but it works. Plus, if you have a LOT
of time and oil pan gaskets on your hands, you can calibrate it to the
pressure that you want.
Sid
>From: "Tom Phelan" <tomph@ispchannel.com>
>Reply-To: datsunroadsters@egroups.com
>To: "Roadster List" <datsun-roadsters@autox.team.net>, "One List Roadster
>List" <datsunroadsters@egroups.com>
>Subject: [datsunroadsters] Oil pump
>Date: Wed, 26 Jul 2000 00:03:24 -0400
>
>Hi All,
>
>Got a question for you racers out there. While checking over the oil pump
>on
>a 2L race engine I'm working on I found a 3/8" stack of washers in the cap
>for the regulator spring on the side of the pump. I assume this was done to
>raise the oil regulator/bypass opening pressure to a higher lb/psi. Anyone
>ever heard of doing this? Any comments on the pro's or con's? What is the
>normal pressure at which the bypass is activated?
>
>Tom (road warrior) P
>Hendersonville NC
>68 2L #2771
>
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