bbc oil restrictors?
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bbc oil restrictors?

  1. #1
    Senior Member ap67et10's Avatar
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    Default bbc oil restrictors?

    i'm going to go solid roller this weekend and want to know what size restrictors people are useing. i think you can get between .50-.80 to go into the back of the block, does it matter that much for what i'm doing or is it more just that i need them in and doesn;t matter what size? fairly mild bbc but do have high volumn pump with 10qt dooley pan. just want to make sure i'm not going to run the bottom end dry. thanks, AP

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    Rollin With Fink fasterthanu's Avatar
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    Quote Originally Posted by ap67et10 View Post
    i'm going to go solid roller this weekend and want to know what size restrictors people are useing. i think you can get between .50-.80 to go into the back of the block, does it matter that much for what i'm doing or is it more just that i need them in and doesn;t matter what size? fairly mild bbc but do have high volumn pump with 10qt dooley pan. just want to make sure i'm not going to run the bottom end dry. thanks, AP
    Personaly I would not use any, BBC's don't typicaly put as much oil on top llike a SBC. Every motor may act different tho. Does/did your motor ever spray oil across the room with the V covers off. I have yet to see a BBC do that. Although like I say some may, just none I have done. I would run it first and see. Proper windage and good drain back should be your focus. IMHO

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    E-7 Sheepdog (ret) SmokinLowriderSS's Avatar
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    Big Chevy's don't really have any drainback issues, so really do not need restrictors.


    Also, IMO, you have no need for a huge volume pump unless you plan on filling very loose bearing tolerances with it.

    Proper presure with ENOUGH flow, more work from the pump wastes HP, breaks distrib. drive roll pins (and pump drive shafts), and just generally makes a mess of a good working system.

    "More oil flow MUST be better tho, and the only thing better than more, is even more."

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    Razor Wire Militia 髯岙喢殮作's Avatar
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    just dont!!!!

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    Senior Member hotbo's Avatar
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    wow this is weird i have put several sets of these things in never ever had issues why in the hell would you want to put extra oil up top with solidsyou dont need it up there,oh ive heard to cool springs of,b.s imo there is still plenty getting there just not drownding the hell outta your valvetrain.i use the .060 ones,oh well we all have what we think is best just funny that every body i have ever dealt with if you go solid you need them.good luck on whatever you decide

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    Senior Member ap67et10's Avatar
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    i'm pretty sure i'm going to use them. it seems like an easy choice. you have very little need for any kind of excess oil on the top (especially with solids) and in a jet you have 3-4000 rpms at normal cruise with about 60-80% load on the engine for sometimes as long as 20...30...40 min almost constant (depending on how big the lake is or where you're going on the river) but to me it seems that you especially don't need the (possibly) excess oil on top so why put it there when a $15 parts could remedy it.

    my thoughts are that i am choosing the better of two possibilities in that i can restrict the oil up top because i really don't need it there, or i could just leave it flowing how it is (which may be perfectly fine) but there is the possiblity to starve the bottom which to me that seems to = very bad things and a lot of money.

    am i off??

    could or am i hurting anything at all by putting them in?

    could or am i hurting anything at all by not putting them in?

    thanks, AP

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    Senior Member vee-driven's Avatar
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    All my solid roller motors have oil restricters.


    It's not that i don't care, I just dont give a sh!t!

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    Rollin With Fink fasterthanu's Avatar
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    Oh yea thats right GM has been using them for years. LOL- go for it thats what keeps the aftermarket guys in business

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    Senior Member ap67et10's Avatar
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    can you give me a good reason not to run them? other than gm doesn't? i'm not really into the doing what other people (or manufacturers) are doing just because. i'm kind of big on having a specific reason. id rather have a choice and make it based on facts and pros and cons that are more closely related to my situatioin. just curious but why whould i ever run the engine with the covers off?

    AP

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    Senior Member vee-driven's Avatar
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    GM dosent sell their cars with solid fukn roller cams!!!!!
    Last edited by vee-driven; 03-11-2008 at 11:57 PM.


    It's not that i don't care, I just dont give a sh!t!

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    Senior Member ap67et10's Avatar
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    they did sell them with solids though...at one point.

    so why you against it?

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    Senior Member ap67et10's Avatar
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    oops answered your answer to fasterthanu coment. hard to keep all the sarcastic comments straight.

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    DJD
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    Im not a big fan of oil restrictors in my opinion chevys have enough oiling issues on the top end to start with why cut down the oil even more? Another issue to think about is that your oil helps cool the valve springs so if you start cutting down the oil you in turn stop cooling the springs as much as you would do without. Everyone has an opinion and if you wait long enough you will hear a ton of them. Do what you have always done if its always worked. good luck.

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    Senior Member vee-driven's Avatar
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    Quote Originally Posted by ap67et10 View Post
    they did sell them with solids though...at one point.

    so why you against it?
    A regular solid lifter is a flat surface against a flat surface which requires lubrication. A solid roller is self explanitory, the ROLLER. People are gonna do what they do, and thats fine, i built plenty of motors and am friends with people who are better that the biggest names out there, i'm not braggin just the way it is. I will tell you only once not to jump off the cliff after that it's on you.


    It's not that i don't care, I just dont give a sh!t!

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