I was wondering what fuel filter people are using that are running E85. I put an inline filter on to tuck the lines. I am using a Russell 6AN 40 micron that measures about 1.5" OD x 3" long. I am putting down 515whp and my tuner says that I need to run a bigger filter. He says it should be as big or bigger than the fuel pump, at least 2"x4". He said I could go back to the stock filter (I was using an AEM replacement filter), but I didn't think paper filters were good with E85. Just wanted to hear what people were using as far as size and micron. Thanks.

 

I run a single fuel filter from a 2004 chevy tahoe. It was rated for flexfuel use, flows quite a bit... running 6 1200cc injectors out of dual 340lph in tank pumps.

 

^^^^How did you mount or use this filter

 

That's not a bad idea. I didn't even think about adapting a flex fuel vehicle fuel filter in the mix. Do you know if it is a paper or metal filter?

 

I'm running the Russell 649000. -8 in/out, 10 micron. Paper is fine as long as its rated for Ethanol. You want some smaller than 35 micron downstream of the pump.

 

Just changed over for e85 (actually going to run e98 more than likely) and I am running an Aeromotive filter housing with stainless element.

http://aeromotiveinc.com/products-pa...d-fuel-filter/

 

If your not concerned with looks and your not running an excessive fuel pressure (you shouldn't have to with an efficient fuel system) I'd use a fuel filter from a 2010 Ford E350. If it can handle enough fuel for a 5.4 liter V8, I'd think it could handle a lil honda motor
The reason I mention looks/no excessive pressure... it's a clamp-on style filter.

 

I ran one on a 400whp turbo D16 no prob... and I like the price $10!!

 

Thanks for the feedback. Anyone think 100 microns is too restrictive?

 

A micron is a unit of measure, like an inch. So a 100 micron hole is 10X bigger than a 10 micron hole.

If you're running a 255 in-tank with a filter on it, the fuel is being filtered down to 25 microns as it enters the pump. Installing a 100 micron filter after it will accomplish absolutely nothing.
Just like putting window screen under a coffee filter. The window screen won't catch anything the coffee filter didn't.

 

so the factory fuel filter is a no go?

 

I run 100 micron stainless steel aeromotive -12 in to the pump and an aeromotive 40 micron SS -10 after the pump

 

X2. Cause I've been on a factory filter for over a year now.

 

I get what you are saying about the unit of measure. As far as not being able to catch anything after the pump....... I just got a bad batch of gas recently and it turned my white 20 day old sock on my fuel pump black and my 40 micron filter before my fuel rail was also black with a clogged screen that needed cleaning out, so I would have to disagree with that. There were no holes in the fuel pump sock as it was brand new. Some stuff did get past the sock and the 40 micron filter did pick it up.

 

The ID injectors comes with 7 micron filters in them.... so you should want a filter than is less than 7 microns. Fuel lab makes a 6 micron filter which has a removable element that you can clean out... never worry about your injectors clogging again... just check the removable filter at oil changes (every other) and your good to go!