[Gmecm] Re: E85 compatible?

[SubZero350@att.net]

----- Original Message ----- 

> on the e85 vehicles that i am familiar with gm and
> dodge the entire fuel supply is plastic or composite
> they have a flex fuel sensor that measures the amount
> of ethanol and the temp to determine the amount
> ignition timing, fuel mixture etc the fuel injectors
> are very different in which the orings are not sold
> seperately and made from a material to deal with
> ethanol along with the injector itself (denso)
> as far as tuning if you can get the fuel system to
> live with the ethanol fuel lines, injectors, etc and
> possibly install a heated o2 sensor you will be able
> to work what bugs out that you have also it will need
> more flow to get the the a/f ratio right.
> terry
>

Thanks for the info, Terry.  Well I have my 1987 Pontiac Fiero in which I 
have installed a 3800 Series 2 Turbocharged that I would like to convert to 
exclusively run E85 in.  I recently purchased and installed Delphi 42.5 
lb/hr injectors which the vendor who sells them claims they are 100% 
compatible with alternative fuels (i.e. Methanol) so I think they should be 
ok to run with E85.  I am running a Walbro307 fuel pump which I am not quite 
sure is 100% ethanol compatible but it uses stainless steel components.  I 
know the rubber lines and O-rings throughout the fuel system will need to be 
changed out.  I guess the most pressing question I have is: Will the metal 
lines and fuel tank as well as the plastic baffles in the fuel tank hold up 
to E85?  If not will an additive such as Marvel Mystery Oil help?

I already have a heated O2 sensor and the means to increase fuel delivery 
and adjust A/F ratio in the chip if needed.

Again, thanks for the info.

-ryan