E85 ?

[gensei]

hi everone not sure if this subject has been covered before in other forums . If wanting to convert to E85 is it just a tuning issue or is there more detailed fuel system mods to consider.Also if it would void warranty on 3MPS. Any cons involved with a change to E85 .Am i crazy to even consider this changeover any advice positive or negative would be most welcome.

Thank you gensei

[DISIMS3]

You're crazy

[steviekfc]

e85 as in petrol?

[Jmac]

From what I recall, using e85 in a car not originally designed for it can cause premature wear in any plastic or rubber based material it comes in direct contact with.
While admittedly I only have limited knowledge in this matter I would initially advise against it.

I know that they are advertising this with the V8 Supercar series but I am not sure of any success stories retuning a forced induction street car for use with E85, and if there is.. I have not heard of an MPS. I suppose someone has to give it a go though?

Here are some other threads based around E10 you may find helpful or interesting.

Ethanol (E10) less economical
Fuel - What do you use?

Curious to see what others more knowledgeable than myself on this topic have to say *subscribes*

[owhat]

On a skyline forum about a year ago there was a chap with a heavily modified r33 skyline that had to pass emissions. He was a tuner and was a pro on the power fc.
he was able to tune the car to run on e85, the fuel economy was pretty crap though. (from memory if the car was at 10L/100 he was getting about 15L/100 with the e85)

He passed the emssions test even with a larger injector/turbo combo.

I forget what forum it was bu t is use to see the guy around newcastle some years ago.

as you would have to tune the car you can say goodbyw to you warranty

[MattMPS3]

A mate of mine is running it in his very tough corolla (track toy), just by switching he has gained 20hp (atw) at 6k rpm (which is a pretty hefty jump for an NA engine), all his temps have dropped considerably, i.e coolant etc, due to the better cooling properties of alcohol over petroleum based fuels, and you can tune your timing a lot more aggressively to take advantage of the properties of the fuel, now the downside, he is running 1000cc injectors to cope with the additional fuel required in order to maintain a stoichiometric AFR, ethanol's stoichiometric ratio is 9:1, petroleum is 14:1, as as mentioned the majority of parts in your fuel system are not designed to run alcohol based fuel through them, you may not have any issues doing this, but it is worth considering.

So yes a tune will be critical, and you may max out the stock injectors and fuel pump, and being a DI engine I would imagine all these types of parts are outrageously expensive.

Heres some good reading on E85,
E85 in standard engines - Wikipedia, the free encyclopedia

[SarcasticOne]

I'm surprised the response is a civil as it has been =)
personally, i would say no... as whilst the octane rating is apparently higher, if the engine isnt designed to run on it, it probably shouldnt be... wikipedia says that cars need to be designed with E85 in mind...
E85 - Wikipedia, the free encyclopedia

[gensei]

thanks for your input i was mainly considering e85 from an environmental standpoint due to the very low co emissions.Also to stop our reliance on overseas oil interests regards gensei

[Reedy]

Salesman that I just bought MPS Gen II from said it was fine to run on E10 fuel. Not that I will, but thats straight from the horses mouth. It wont run as well but it might save a bit of money, depending on how badly the fuel economy suffers as a result.

[Jmac]

E10 isn't e85.