Filter problem?

[Razor]

I have been having weird pressures with my system and realized its due to the purolator filter. It appears to not flow, maybe it gets air or???

Anyone else out there have an issue with it?

I was running tonite and it looks like it gets air or??? and doesnt flow.

Time for a different one?

I'll run some more tests tommorrow..

Post results tommorrow.

 

[Red Regal T]

TIME TO FORGET ABOUT USING ANY KIND OF FILTER. UNECESSARY.

 

[Razor]

Wow..where have you been

Even tho you use one

hehe

 

[VIN7]

Julio,

Let us know what you find.

Maybe move the filter to the pressure side of the pump would work out better.

Mike

 

[Razor]

On the phone with engineering at purolator..

they'll call me back.

 

[6SENSE]

Thanks Julio. Got your email too. Keep us posted. I have been having some performance issues, but not sure if it is in any relation to that. Have to do more tests, dont have enough info yet to pinpoint anything.

 

[Razor]

Problem is due to the fine filter media its made off..the purolator filter is designed to go the pressure side.

The standard mist nozzles have a 120 micron mesh, this filter will capture less than 5 microns., burst pressure 900 PSI and have a pressure drop of only 1 PSI.. but it wont suck through

So i'm on the hunt for cheap SAE J2044 connectors..then apply them to the pressure side and see what happens.

Keep ya'll posted

Julio

 

[turbogto]

I've been sucking through one of those little clear glass parts store filters for a few months using denatured and it seems to work fine.

I like being able to see into it because it has caught lotsa little black things. I have no idea how they got in there because I am real careful about keeping it clean. Even rigged up a filter on the filler cap so dust from the air can't get in.

 

[VIN7]

Hmmm, I noticed some black particles when I was testing my pump voltage and running the discharge into a catch can. I wonder if it is the fuel line hose breaking up?

Mike

 

[Razor]

Okay..heres what I got done today..whew..
I had a hose made #7 teflon and a set of compression fittings placed on it. Those compression fittings went on the filter end(purolator). And added a 1/8 pipe to #6 fitting on the nozzle.

Dropped in and went for a ride..no more spray problems. So the filter after the pump produces no issue. I'll be testing a similar setup on my car monday afternoon. And post results. Also getting a brass filter to go inline as well and post those results as well.

One thing for sure, removing the filter before the pump produced an additional 50-70 PSI pump pressure.

I ran 11.80 on thursday nite with the filter pre-pump..but my pressure guage never went over 80 PSI. I like to be able and throttle it to 125-150 if needed.

More results to follow.. getting a handle on this.

 

[turbogto]

I dunno, I like the idea of filtering on the other side of the pump to catch as much stuff as possible, but if it's the same Purolator filter I got from you, it is totally smooth on the inlet and outlet side, not even a nub at the end to help hold the hose on. Not to mention it's 2 different hose sizes. I don't know if I'd want to hit it with 100 psi.

 

[Razor]

Industrial compression fittings 2500 PSI ..they are neato

I have another style filter coming in on Monday i'm going to try.

One thing for sure, that shureflow is sensitive to flow restrictions placed before it...makes a world of difference.

Pete..I'll email ya latter

 

[6SENSE]

Maybe some of my issues are coming from this filter. No bogging problems after I really stand on the pedal for a little while and get the sureflo pumping.............hmmm. Maybe its affecting me a little worse because of my different engine configuration . My brother seems to think his is flowing fine ('86TR), then again he aint used to alky injection. If he thinks its okay now, wait till he gains that extra [lost] psi

 

[granitestategn]

cavitation?

It's probably a bad idea to put the filter on the suction (inlet) side of the pump. This could cause cavitation in the pump if there is much restriction in the filter. This is bad for all pumps but especially bad for positive displacement pumps (diaphragm pumps, like Shurflo's). You can rupture the diaphragms. At best you'll get poor pump performance, at worst you'll rupture the diaphrams and loose your alky (and maybe your motor). All that being said, if there's no restiction, there's no problem. I just wouldn't go looking for trouble. If the particles are small, they probably won't do much damage to the pump. Just my 0.02 that cost me 20 large to get. Happy to share.

 

[Razor]

I hear ya..heres the fix for that..Methanol Filter



Also the hose feeding the pump should be as large as possible.. I use 3/8

Thx