GNVYUS 1
Well-Known Member
- Joined
- Dec 15, 2002
Well, this is why I always said to install a new fuel filter and to check it out after converting. The pics below are probably the worst I've seen concerning this crap and I've got maybe 1000 miles on E85, definitely not that much more. The car did sit for most of 09' into April of 10' with a full tank of E85.
I had the car running great for probably 2 weeks until one night the car got some knock while tracking down a kid in a new BMW who wanted to see how he'd do. I knew I was in trouble after having the Walbro issue so I did another run and bigger than #hit, the fuel pressure isn't 1:1 at WOT and the Wideband is quickly going from low 11's to 17 AF/R with a nice backfire to inform you you're setup sucks.
Pulled everything apart and here's what I got.
1) Magnafuel SS 25 Micron Fuel filter is full of these tiny chunks in which some are gooey and some are hard and turn to dust when you crush them. WTF??? And there were 10x more chunks initially, but pulling it out of the filter and transporting it home in a Ziplock bag knocked most of them out.
2) I had the aluminum anodized fittings for the Fuel Filter custom cut and you can clearly see the aluminum corroded but the anodized parts are fine. These were the only fittings that weren't 100% Stainless or Anodized and now I see why aluminum sucks for E85.
3) Injectors were a tad black and some had some goo in them, super.
4) I drained and pulled the tank, nothing inside except a couple gooey spots on the bottom of the pump. Tanks bowl was totally clean and nothing is in the fuel.
5) Tore apart the Denso fuel sock, nothing inside it, no gooey chunks on the outside either.
I'm calling Magnafuel Monday to see what they say since they've been dealing with Ethanol for decades and their filter was what they recommended for E85 on an FI car.
Off to Caspers Tuesday to get the injectors cleaned and flowed.
I get my GN fuel from one E85 station and my E85 GTO's from another. I wonder if I'm seeing water build up at the filter. Not sure since I've never dealt with this in person.
I had the car running great for probably 2 weeks until one night the car got some knock while tracking down a kid in a new BMW who wanted to see how he'd do. I knew I was in trouble after having the Walbro issue so I did another run and bigger than #hit, the fuel pressure isn't 1:1 at WOT and the Wideband is quickly going from low 11's to 17 AF/R with a nice backfire to inform you you're setup sucks.
Pulled everything apart and here's what I got.
1) Magnafuel SS 25 Micron Fuel filter is full of these tiny chunks in which some are gooey and some are hard and turn to dust when you crush them. WTF??? And there were 10x more chunks initially, but pulling it out of the filter and transporting it home in a Ziplock bag knocked most of them out.
2) I had the aluminum anodized fittings for the Fuel Filter custom cut and you can clearly see the aluminum corroded but the anodized parts are fine. These were the only fittings that weren't 100% Stainless or Anodized and now I see why aluminum sucks for E85.
3) Injectors were a tad black and some had some goo in them, super.
4) I drained and pulled the tank, nothing inside except a couple gooey spots on the bottom of the pump. Tanks bowl was totally clean and nothing is in the fuel.
5) Tore apart the Denso fuel sock, nothing inside it, no gooey chunks on the outside either.
I'm calling Magnafuel Monday to see what they say since they've been dealing with Ethanol for decades and their filter was what they recommended for E85 on an FI car.
Off to Caspers Tuesday to get the injectors cleaned and flowed.
I get my GN fuel from one E85 station and my E85 GTO's from another. I wonder if I'm seeing water build up at the filter. Not sure since I've never dealt with this in person.