Fuel filters E85 EFI

[smurfbus]

Now that I have bought ID1000.60.40 and locked aeromotive A1000-6 FPR its time to look for optimum filtering. Criteria is money/quality/flow/usability. Looks dont matter to me so also stock filter might work although its almost unpossible to find any filtering specs on bosch OEM filters. They could be around 10 micron and my audis stock filter has worked fine for 5 years now with E85.

According to a study done by Bosch, motorsport injectors need 5 micron filtering to be safe so I need a 6 micron filter between pump and injectors and as close to the injectors as possible. One filter that has had good reviews is Fuelab 818 series microfiber 3in and 6 micron units.

81832 comes with an8 connectors. Fuelab has a bigger more expensive 845 series unit with 6 micron filter and aeromotive has 10 micron units at about same price point as the bigger Fuelab unit.

Is the Fuelab 81832 3in unit big enough for about 500whp?

Before the fuel pump a filter with 50 to 100 micron is suitable. These units cost about the same as the finer ones at around 150-180 usd. I found this smaller sytec filter for around 100usd and it has cleanable 55 micron ss filter for pre pump usage. Any advice pro or against using it?

FSE Sytec Anodised Bullet Fuel Filter With -8 JIC Fittings Post Or Pre Filtering
FSE SYTEC BULLET FILTER METAL FILTER ELEMENT 55 Micron

Most cost effective way would be the stock filter before injectors but without knowing if its ok I cant risk my ID1000 injectors so I think I need to invest a lot of money for the filters to be safe.

[TurboKraft]

Aeromotive Microglass filters, ex: #12346 with black hard anodized housing.

If you think you can fit a pre-filter before the tank and the front pump, you can use something like #12304 with an all-stainless element.

[Ken911]

who is it that was selling the extra capacity fuel tanks? wonder if you can buy one thats not welded together yet to put all that stuff in the tank.

[TurboKraft]

Filters are service items, I wouldn't want one inside the tank.
Front fuel pump inside the tank, sure.

[Pat RUFBTR]

There is also a fuel oil filter AEM. PN: 25-201BK
Tank=>pipe ptfe => pump044=>ptfe 6AN => pump044 => ptfe 6AN => Fuel filter AEM/Aeromotive 10AN => line ptfe 6AN => injector ID1300. ??? Is it good it for the circuit of gasoline(essence), is not the difference 6AN / 10AN too important?

[willtel]

ID teased thier own fuel filters a few months ago but I don't know if they are available yet.

https://www.youtube.com/watch?v=bm7_TEzwNGg

[pkabush]

That looks pretty sweet.

[scottrx7tt]

I am using the stock 3.2 filter and have had no issues

[xbmwguy]

I gutted a tank coated the inside with some 2 part ethanol resistant coating and put my a1000 in along with a holly mat filter secured with a few rare earth magnets and then have a 10 micron just before the fuel rail will be putting the tank in next week after our hurricane passes

[TurboKraft]

Originally Posted by Pat RUFBTR

There is also a fuel oil filter AEM. PN: 25-201BK
Tank=>pipe ptfe => pump044=>ptfe 6AN => pump044 => ptfe 6AN => Fuel filter AEM/Aeromotive 10AN => line ptfe 6AN => injector ID1300. ??? Is it good it for the circuit of gasoline(essence), is not the difference 6AN / 10AN too important?

Pat, that is a correct path.
The transition from 6An <10AN and back down to 6AN at the filter is not a cause of concern.
From the tank to the front pump, you can also use a nitrile-based hose of 0.5"/12mm inside diameter.

[willtel]

Radium Engineering has some cool stuff too.


Along with XRP.

[smurfbus]

I will try to use alu 10mm ID line through the stock fuel passages in the tunnel and 8mm return line. I wish we could get the price point for the ID filter already. Looks like it will be around 200usd with all the extras it has in_build.

That Aeromotive Microglass filter 12346 looks like a good candidate for injector protection and is a bit cheaper than the 6 micron Fuelab unit too.

The output on the tank is small maybe 8mm but I dont think I will have new bungs welded on it. So some adapters are needed for pump and then for the alu line.

[Pat RUFBTR]

Originally Posted by TurboKraft

Pat, that is a correct path.
The transition from 6An <10AN and back down to 6AN at the filter is not a cause of concern.
From the tank to the front pump, you can also use a nitrile-based hose of 0.5"/12mm inside diameter.

Thanks Chris !
Thus the fact of crossing of 10AN fuel filter in 6AN fuel banister/pipe engine is not too restrictive?
I imagine that ideally it would be to have a complete line of fuel there 10AN of the tank in fuel injectors, but it's impossible.

Hello Smurbus, c'est peut-être une très bonne idée la ligne 10mm ID en aluminium dans le tunel, pour une meilleure résistance dans le temps il faudrait peut-être la faire anodiser.
I hope that your project will succeed and thank you for sharing your experience(experiment), she can certainly help several people on this site.

[smurfbus]

I got that 10mm ID alu line idea from Chris too maybe from Toms yber 930 project? it might be too tight for me to work out with the engine still IN but its not that expensive to experiment. Teflon line would be easier to bend and manouver so I may have to go that route and its not that much smaller ID as teflon is also very strong material.

[smurfbus]

I just bought Aeromotives 12346 and 12304 filters from UK. Half the price of injectors but at least I dont have to worry about contamination screwing the injectors. FPR still to buy and it will be about 200usd shipped.

I already have used 40mm alublocks which Jnovak modded to accept long ev6 style injectors with his fuel rails. Fuel pumps are 2* bosch 044 or one 044 and one stock. I have to see if the front 044 still keeps scavenging after cleaning the tank filter and using lower EFI pressures. MS3 pro I bought over a year ago but its still in the box. I think I'm only missing the FPR and fuel pressure sender at the moment. Possibly flex fuel sensor if they get the readings more precise.

[Ken911]

Originally Posted by TurboKraft

Filters are service items, I wouldn't want one inside the tank.
Front fuel pump inside the tank, sure.

I was thinking more like a strainer screen like the stock tanks have with a 1/2 inch line instead of the 3/8th thats there. not an actual filter inside the tank. The large capacity tanks dont have the swirl pot and strainer like the stock ones.

[TurboKraft]

If you do aluminum tubing down the tunnel, make sure it is the type that is anodized. Usually available clear, black, etc. Otherwise SS tubing.

PTFE hose down the tunnel is good, too, and easier to work with than the hard lines.
Not all PTFE 6AN or 3/8 hose has the same bore, we have found some with a larger ID yet a smaller OD thanks to fewer and/or thinner outer layers.

Whether or not the tank needs a large pickup depends on your power level.
We recently tuned a 930 on e85 and hit 600whp, stock fuel tank, no drop in fuel pressure at the rails thus no problem with supply to the pumps.

[smurfbus]

600whp is more than I will need and at the upper limit of my holset anyway so good to know stock outlet is fine. The aluline we have here locally is anodized also inside and still relatively cheap.

[SexOnTheBeach]

For high filtration CM filters have canister type filters of 1 micron, been using them for years.

[Pat RUFBTR]

Hello Chris, hello everybody !

The stainless tubes 10mm OD and 8mm ID is good and sufficient for the E85. What is the diameter ID of origin in the central tunnel?

Thanks,

Pat