What modifications running E85 requires, except bigger injectors and ECU tuning?
Could it still be run with ordinary gasoline, and if yes, will there be automatic program switch ( some Fords can do this ) or is manual switching necessary?
Who provides the required soft- & hardware?

As usual, using "search" was not much of a help...

 

And as usual, no answer for a specific technical question. Not even that std "Ask your tuner" quote...

BUT, I got information from a local Bosch representative about turbo's OEM injectors. According to Bosch datasheet they're rated 443 cc @ 3bar. Thats 500 cc @ 3.8 bar or 575cc @ 5bar.

BTW, here's a link to Bosch Motorsport datasheet about EV-14 injectors: http://www.bosch-motorsport.com/cont.../html/2659.htm

And a link to Bosch Motorsport datasheet about 5 bar fprs: http://www.bosch-motorsport.de/conte.../html/2829.htm

 

The question is how much HP are you looking to run.. I have done E85 conversion in cars and changed nothing at all.. Normal parts to be changed are Injectors, Pump & Tune.. Give us some more info to better help you.. Thanks!!

Mike

 

Hi pete95zhn
I think that the cars that run E85 an gasoline has a alcohole meter in the gas tank or fuel line that messures the fuel/E85 mixture and adjusts the ecu there after (Saab 93,95 biopower) but I'm not sure. If you’re switching between fuels you should switch prog manually. Then there’s the Q that always arise when you convert to E85 and that is if the material in seals/tank/hoses and the fuel pump can withstand the E85.
This is just my thoughts

 

Correct the flex fuel cars have a sensor that measure the Ethanol content so you can switch between fuels and ECu adjust mapping accordingly.. If you do it on a car that is not flex fuel standard you need to swap maps when you swap fuels yourself.. There are ways to add that sensor into a standalone type setup but its far too risky IMO relying on it to change mapping..

Mike

 

OK, thanks for the thoughts about map switching and sensors. To get most out of manual map changes ( and also out of E85 ) you'd need always fill in a full tank of fuel. Then there's the question about correct map with correct fuel in manual change and remembering to change.
Still -IMO- two maps is a necessity unless E85 is available in every pump in areas you're going to use that car.

I'm going to be at 500-550 crank hp area, but is there a rule of thumb -so to speak- how much larger injectors one should use with E85, compared to gasoline?

BTW, in that link above about FPR's the one suitable for 996 turbos is E85 compatible. I happened to buy one of the last old ones...

"For your future information, this pressure regulator is being upgraded to be compatable with E85 fuel. The new part number is 0 280 B02 722-02 and is more expensive. When our stock of the 113 fpr is depleted we will stock the new upgrade."