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-   -   CJM Report: Effects of E85 after 3 years? (http://www.the370z.com/forced-induction/89934-cjm-report-effects-e85-after-3-years.html)

phunk 05-13-2014 04:36 PM

Quote:

Originally Posted by SgtGoldy (Post 2817084)
This makes me feel a lot better about running e85 in my setup. Mind if I crosspost this to the BMW forum since most of us are TT there and run e85?

Doesnt bother me at all!

phunk 05-13-2014 04:37 PM

Quote:

Originally Posted by jofro6 (Post 2817164)
A little off topic, but would there be any performance benefit to E85 on an NA engine? Just curious as I see no one thats really done that here before? I just see all you boosted guys switching over (which i know is to help with safety as well)

I would expect little to no benefits. It would definitely require a retune, but you are probably aware of that. If I had every other bolt on and was pushing to around 350rwhp NA, than I might be interested to try and tune it with some E85 and see whats in it... But for now I can only guess. 3-10hp with tune? Perhaps it would be worth researching a little in the Honda scene since those guys try everything and have countless NA builds.

TopgunZ 05-13-2014 05:22 PM

Quote:

Originally Posted by Staples (Post 2817169)
Could have been corrosion from the fuel lines? They say high ethanol content likes to break down and corrode rubber. A lot of people upgrade their fuel lines to stainless braided to help with this issue.

The feed line is steel coated in a corrosive barrier of polyurethane. Besides the 6" or so that are in the fuel access area. So I guess that could be.

But stainless braided has nothing to do with what is inside the line. That is just a sheath for protection. The inside of those lines are plastics, nylon and Teflon.

Quote:

Originally Posted by SgtGoldy (Post 2817202)
to be honest I didn't know it had anything to do with safety. I use it cause its higher octane and cooling properties. Paired with my tune it's amazing how much of a difference it makes. It also allows me to boost at 22psi :D

source: E85 Vs Race Gas | Cooling advantage and tuning Ethanol

This is the same thing. Octane is safety.

megalapagas 05-13-2014 07:55 PM

Phunk what about Nitrous and E85?

phunk 05-13-2014 08:03 PM

I have never personally mixed the 2... but I know that it is done all the time. You just have to keep in mind that your jetting will have to configured for the higher fuel needs... and of course you will need quite a fuel system as both nitrous and E85 require tons of extra fuel.

jofro6 05-13-2014 10:43 PM

Thanks for the info on the E85 and NA. I was assuming the probable benefits based on running an E85 setup with a full custom tune on it. So basicly, none lol

phunk 05-13-2014 11:32 PM

Quote:

Originally Posted by jofro6 (Post 2817718)
Thanks for the info on the E85 and NA. I was assuming the probable benefits based on running an E85 setup with a full custom tune on it. So basicly, none lol

Well.. I wouldn't rule it out. Between the high compression and VVEL maybe the VHR could make something of it. Until someone tries it... We can only make guesses. If it made another 10 consistent HP, and was conveniently available.. That could make it worth the while. Who knows, maybe there's 20hp to find in it. I have rather little experience with all motor engine management tuning. Most of the cars I have worked on during my career were FI.. So I am far from an authority on the all motor stuff.

jofro6 05-14-2014 07:11 AM

Thanks Phunk... You sell a majority of the fuel supply items don't you? What would I need to make the conversion (and your price), cause i have it very available near me. You can PM so I dont derail your thread any further.

megalapagas 05-14-2014 07:56 AM

Quote:

Originally Posted by jofro6 (Post 2817948)
Thanks Phunk... You sell a majority of the fuel supply items don't you? What would I need to make the conversion (and your price), cause i have it very available near me. You can PM so I dont derail your thread any further.

No I want to know too but for the high pressure that E85 requires what fiel pump woyld I be needing?

Chuck33079 05-14-2014 07:58 AM

Quote:

Originally Posted by megalapagas (Post 2817990)
No I want to know too but for the high pressure that E85 requires what fiel pump woyld I be needing?

Does E85 require significantly higher pressure? I thought it was just a volume difference from pump gas and you'd be fine with a 340lph pump and bigger injectors for NA.

09nismo498 05-14-2014 09:52 AM

Phunk - you know I had that black plastic/tar/rubber stuff in my fuel pump housing too. Noticed it when I did my pump. I have also noticed it in a few customer cars at work when doing fuel pump related repairs. Still not sure what it is either, but I'm pretty sure its coming from bad fuel/contaminated fuel. I can't think of anything else that would cause it.

megalapagas 05-14-2014 10:08 AM

Quote:

Originally Posted by Chuck33079 (Post 2817993)
Does E85 require significantly higher pressure? I thought it was just a volume difference from pump gas and you'd be fine with a 340lph pump and bigger injectors for NA.

Ok then so pump, injectors wise 600cc is about right or too much or is there specific injectprs/fuel I pump I need?? Also once changed its only Strictly E85 or can I pour Premium Gas too?

jwick 05-14-2014 10:09 AM

Quote:

Originally Posted by megalapagas (Post 2818162)
Ok then so pump, injectors wise 600cc is about right or too much or is there specific injectprs/fuel I pump I need?? Also once changed its only Strictly E85 or can I pour Premium Gas too?

E85 or nothing. There is no current flexfuel option

Chuck33079 05-14-2014 10:12 AM

Quote:

Originally Posted by megalapagas (Post 2818162)
Ok then so pump, injectors wise 600cc is about right or too much or is there specific injectprs/fuel I pump I need?? Also once changed its only Strictly E85 or can I pour Premium Gas too?

Since you're planning a nitrous build I'd go larger on injector, but I'll defer on specifics to someone with more E85 knowledge. Going back and forth between E85 and pump gas is supposed to be a pain in the *** since you don't want to dilute the E85 down with leftover 93. I'd think really hard about this for a NA car. If you only gain 10-15whp but you have to pay for a re-tune along with a new pump and injectors, is it even worth it? Sure, E85 is cheaper, but mileage drops significantly so you're not really saving any money.

megalapagas 05-14-2014 10:16 AM

Quote:

Originally Posted by Chuck33079 (Post 2818171)
Since you're planning a nitrous build I'd go larger on injector, but I'll defer on specifics to someone with more E85 knowledge. Going back and forth between E85 and pump gas is supposed to be a pain in the *** since you don't want to dilute the E85 down with leftover 93. I'd think really hard about this for a NA car. If you only gain 10-15whp but you have to pay for a re-tune along with a new pump and injectors, is it even worth it? Sure, E85 is cheaper, but mileage drops significantly so you're not really saving any money.

Good Point, its a No Brainer.


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