On Fri, 19 Sep 2003, Douglas Morris wrote:
> While thumbing through catalogs, I saw a stiffer spring option for the oil
> pressure relief valve.
>
> Questions:
> - How much of an increase in normal oil pressure does this option provide?
The pressure is a bit greater.
> - Are there any drawbacks?
Parasitic drag, but the effect seems negligible.
> - Is that increased pressure useful when the existing oil pressure is near
> the low spec limit? (No, I haven't checked-out the oil pump yet, but I
> will.)
To be honest, you'd get more benefit from blueprinting the oil pump. And
you should do that (bluprint) the oil pump anyway.
FWIW, I run the HD oil pressure relief spring on both mt cars. You get
really high oil pressure when the motor is cold (close to 100 PSI with
20/50 in < 50 F ambient). But the oil warms up in a minute or two and then
oil press. is normal
> DougM (NC)
> 74TR6 CF18310OU
regards,
rml
74 CF14111U
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