Ethanol (E85) with walbro pump

[Swede2]

Hi!

I did some research in using E85 with Walbro 340 pump. I contacted Walbro and as I expected the answer was as follow:

Daniel,

In reply to your inquiry, GSS340 is not designed for use in ethanol. Use in E85 will dramatically shorten the life of the pump.

Regards,

Diana Hutchinson

Sales Account Representative

TI Automotive Systems LLC

Aftermarket Sales

Phone: 989-872-7243

Fax: 989-872-4957

Email: DHutchinson@US.TIAuto.com

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I had my toughts to test it for real... but now will I not do that.

Daniel

 

[salvageV6]

Got an old GSS242 in a bottle here for 6 months now, works well.

Don't tell Diana.

Came out of my car's gas tank after 13 years of use too.

I'm using pure Ethanol however, a good preservative.

 

[GNVYUS 1]

Even if that pump could work, you would need two of them as E85 needs at least 40% more fuel. So whatever power you want to make on your GN, you will need 40% more fuel to achieve it with E85. Good thing is that its 105 octane ( 15% 87 octane and 85% Ethanol ) and is usually the same price as 87 octane ( at least here in IL )

Then you have to deal with larger injectors, hard cold starts and all new fuel lines. If you have a bunch of E85 stations near you it might be worth changing over after many years and miles of running it. You will get less miles to the tank but if its your summer runner, than go for it!!

 

[Swede2]

Dr Booster, you got it all right. My intention was not to run on pure E85, but with some mix... But I dont think I dare to do that now. Here in Sweden they run on E85 in stock cars as Ford Mondeo, Volvo V70 and so on... without changing the fuel pump... strange...

Oh, I like the octane boost you get with E85 and also the cooling effect. Would be hard to tune thou, you dont know what your EGT:s should be with E85 vs gas.

Daniel