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Author Topic:   Oil Pressure
posted March 30, 2002 05:09 PM
I've just been helping a friend start up his freshly rebuilt (self built) chevy 454.But we were a bit gutted when it only had 30 psi at tick over & 40 psi at 3000 rpm cold!
We checked the gauge out & that was fine then we swapped the oil filter (purolator L30040) because we had had problems with Fram in the past. Guess what we ran it up again (with another Purolator but with different batch number) & we got 60 psi at tick over & 75 psi at 3000 rpm & that was warmed up.
So are purolators standards slipping & if so what other make of filter would you recommend?

posted March 31, 2002 03:03 AM
I have collapsed three Fram filters,they will never be put on my car again.

posted April 08, 2002 06:52 PM
Cut open a Fram filter then cut open a Wix filter, you will never want to put a Fram on granny's car anymore. The only good thing Fram has going for them is a darn good advertising company.
I personally use a System 1 oil filter but if you use a conventional type filter I would only use Wix. Hastings is another good filter but should not be used on a race engine. They use a cotton media for filtering and it restricts to much for a racing application, this was told to me straight from a Hastings sales rep.

[This message has been edited by Racer14K (edited April 08, 2002).]

posted April 09, 2002 09:19 PM
I've never had a problem with NAPA Gold filters. Cheap and reliable!

posted April 10, 2002 09:23 AM
Napa filters are made by Wix.

We use only wix racing filters on race motors.

I have talked to a engine builder that had oil [pressure problems with the Fram's He told me they just don't flow oil through them as well as a Wix. He told ma all wix flow good even the standard ones.

I have also heard good things about the ACdelco filters.

posted April 12, 2002 12:49 AM
I agree with Racer14K,the System One is the way to go. I've been running the same one since 1991 on a SBC, I just this season replaced the stainless filter element,it was looking kinda ragged. Mine has been on every kind of racecar from a sprint to a bomber.
There are many advantages like no filters to dispose of, ease of disassembly for inspection, everyone DOES cut open their filters for inspection, don't they.....
Oh yea if you've ever compared the elements
inside the leading brands of filters,you would see that there's not enough paper in a Fram to wipe your rear......

posted April 15, 2002 10:29 AM
where are wix filters sold

posted April 15, 2002 11:53 AM
We get our Wix filters from the local Oreilly's but I am sure other stores would have them also.

posted April 15, 2002 04:56 PM
Here's something I discovered a few years ago with Fram filters. Some that will fit your engine are made for another purpose. That purpose is for upside down mounting. To keep oil from draining back a plastic insert is used like a check valve in the bottom of the filter. We lost an engine when this plastic part failed to stay in place. Under pressure, it went to the center outlet and blocked it off. The harder the pump worked the tighter it sealed.

I don't know if other brands have this insert. I now check, visually, every oil filter for that insert before I install it. I have only had to return one to the parts store. I do know that Fram was not interested in our problem. Guess what kind of filter I don't buy for any of my vehicles. SLEEPY

posted April 17, 2002 10:06 PM
What micron rating filter are you System One guys running? I used one last year, and found the main bearings were FULL of tiny particles that had passed through the filter! With a paper filter, I have never seen this before to this extent, and now it has me spooked. I know several different mesh filters are available, but without comparing them side by side, I don't know which I have.

posted April 18, 2002 09:42 AM
I am not a big fan of FRAM filters but the other day I was in a sprint car shop and there were alot of motors there with Fram filters on them. So now I am confused as to whether they are worth using or not.

If it makes a difference they were FRAM racing filters HP4, not just an off the shelf wal-mart filter. Are the filters we are talking about on this thread the standard Fram filters or the racing ones?

I plan on still using the WIX filters but now I would just like to know what the deal is with the FRAM's for future reference.

Maybe the Hendren motor guy can help?

[This message has been edited by dirtbuster (edited April 18, 2002).]

posted April 18, 2002 08:02 PM
I can't think of the part number for the WIX racing filter off the topof my head but yes it is a black canister and has the WIX racing logo on the side of it.

posted April 19, 2002 10:45 PM
Hey Monster, I think the System One element
that I'm running is 5 micron stainless.
I just pulled down a dirt short track engine
of mine that had a whole season on it, and the bearings looked like I just put them in
yesterday. This engine ran on 20-50 synthetic blend changing oil and cleaning filter every 3 weeks.

posted April 20, 2002 03:39 PM
WIX oil filter numbers.

WIX -- 51061
Carquest(WIX) -- 85061
NAPA Gold(WIX) -- 1061
These are 19 micron

The other filter that fits the small block chevy is for the later models which has an anti-drain back valve is the 51060

For the Ford guys

WIX -- 51515
Carquest(WIX) -- 85515
Napa Gold (WIX) -- 1515

posted April 22, 2002 07:47 PM
Thanks for the words of encouragement, Doc. System One finally has a web site up with all their products and contact info on it, so I'll try to get a smaller pass-thru filter element. You sure can't beat 'em for checking the element in quick time, and the filter replacement cost!

redneck bubbas racing
posted April 23, 2002 05:48 PM
The short Wix filter is 51069, in case you are wondering.

posted April 23, 2002 09:53 PM
I e-mailed System 1 Filters asking what micron rating their filters were and this is what they wrote back.
Quote "The actual filter rating is 35 micron. Now that being said you need to understand that this will trap particles below 10 microns. We have done extensive studies and there is a point where flow and restriction meet at that point your bypass opens. With a paper filter your bypass is open all the time and you are actually filtering only a percentage of your oil. The rest is flowing back to your motor unfiltered. With our stainless steel media you are filtering all your oil all the time."

If anybody has anymore question's about the System 1 Filters you can contact Louis Sweet at E-Mail

Hope this helps guys!!!

posted April 25, 2002 07:35 PM
Thanks for the legwork. They sent me a catalog(no help), my next step was a phone call, but now I think I'll use your approach.

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