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Author Topic:   Oil Filter, Block Adaptor?
Kromulous
Dirt Forum Champ
Total posts: 796
posted June 08, 2005 08:21 AM  
The block adaptor that goes in a stock SBC, should you use that one in a racing engine, or do they make one with no bypass?

Could someone direct me to proper one i need please?

Thanks, Krom.

6pack
Dirt Maniac

Total posts: 171
posted June 08, 2005 08:37 AM  
Take the bypass valve and spring out of the stock one and tap the hole 1/4-18 NPT, then put a 1/4" pipe plug in it.

chomme
Dirt Freak

Total posts: 300
posted June 08, 2005 09:07 AM  
Okay, it sounds like you dont want to use a bypass type of deal. Thats what i was wondering.

The stock one was discarded when the machinist worked on the block, so i need to get a new one, and was wondering what to buy.

I'll order that one from summit, sounds like the best one for the price, thanks Chromme.


leapinlizard
Dirt Freak

Total posts: 402
posted June 08, 2005 01:00 PM  
Speedway has em for less

Kromulous
Dirt Forum Champ
Total posts: 796
posted June 08, 2005 01:31 PM  
I couldnt find one on the speedway site, that did have the bypass, that was cheap.

Maybe looking in the wrong area.

6pack
Dirt Maniac

Total posts: 171
posted June 08, 2005 06:20 PM  
Competition Products has them. From their home page click on "print catalog". It opens a pdf file, go to page 131.

autoshop
Dirt Freak

Total posts: 298
posted June 10, 2005 10:35 PM  
Krom , Here's what happens when you don't plug the bypass. They can stick open and you have o or at best 10 lbs . It happened to me last night. The crew member bolted the wrong one on and we did not find it until we had a problem. Just glad the car was idling waiting to go out for the hotlaps when it happened.

o5racer
Dirt Freak

Total posts: 402
posted June 11, 2005 12:18 PM  
The entire oiling system is under pressure. if a stock valve is used it will probably go through the bypass at high rpm instead of through the filter. The only way to loose oil pressure in this area is if it leaks to the outside or into the crankcase. If the valve sticks open its just going to bypass the filter. you will still have oil pressure, it will just be unfiltered oil.
Nick

autoshop
Dirt Freak

Total posts: 298
posted June 12, 2005 04:31 PM  
The presure comes from the pump thru the filter adapter to the filter(restriction equals pressure),if the bypass is open there is no way to build presure to force the oil to the top end . If you lucky the mains will have oil but not presure but the top end oil presure oil hole in the back of the block is a direct presure tap from the oil pump. If nothing comes out as was the case you have no oil pressure.There is enough leakage thru the rods and in this case lifters to have no pressure..

[This message has been edited by autoshop (edited June 12, 2005).]

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