OIl Restrictiors

DO any of you guys run oil restrictors to your mains??


Tore

With a production block i don't.

Thanks


Tore

why would you ristict oil from the mains? That's what youu want to lube the most along with the rods.


Ace

Tore wrote:DO any of you guys run oil restrictors to your mains??

Tore

As said ... WHY ...?

Becasue I have seen where some people have.

Tore, people put restrictors in the cam feeds from the mains to slow the oil to the cam. That's probably what you saw. If the lifters are made right and clearances are correct you won't need them.

I had a Dove-A block a few years back that had restrictors in the Mains and I never understood WHY they did that a 20+ yrs. back

IDT-572 wrote:Tore, people put restrictors in the cam feeds from the mains to slow the oil to the cam. That's probably what you saw. If the lifters are made right and clearances are correct you won't need them.

That was my thought as well. I understand it for the cam, not so much for the mains...

Tore wrote:DO any of you guys run oil restrictors to your mains??


Tore

1] If you mean restricting oil to the mains....no.

2] If you mean putting a restrictor in the actual block main bore housing to restrict the oil to the cam bearings it'd be best described as 'goofy'...not need...was a an old cleveland Indian trick.

Tore wrote:DO any of you guys run oil restrictors to your mains?? Tore

IDT-572 wrote:Tore, people put restrictors in the cam feeds from the mains to slow the oil to the cam. That's probably what you saw. If the lifters are made right and clearances are correct you won't need them.

All have for the most part answered your question Tore. I have a different opinion as to why the restrictors can be used or are used. Instead of the camshaft being the primary target, I like to think it keeps a bit more oil at the mains, then on to the rods. Yes it is a restriction for the flow of oil to the camshaft bearings although I like to view it as restricting the amount of oil that can escape the crankshaft or suppling more oil (volume) to the crankshaft. Ford 385 production blocks share the same oiling blueprint as the Ford 335 production blocks, therefore the ideas of oil system blueprinting of the two series of Ford blocks are similar, as both will benefit from modifications proven to be an asset. Think of it this way, with a main journal diameter 1/4" larger, would more oil benefit the larger diameter journal or not? I will say however, if an engine is to see extended periods of service, restricting oil routing may not be in one's best interest.

Just my $0.02,
Dave.