CJM Report: Effects of E85 after 3 years?

phunk · 05-13-2014, 04:36 PM

Quote:

Originally Posted by SgtGoldy

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

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

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

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

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

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

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

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

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

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

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

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.

05-13-2014, 07:55 PM	#19 (permalink)
megalapagas Enthusiast Member Join Date: May 2013 Location: McAllen,TX Posts: 457 Drives: '10 370Z Tour A/T Rep Power: 11	Phunk what about Nitrous and E85? __________________ GTM 34 Row Oil Cooler \| K&N Drop Ins w/ Z1's Post MAF Tubes \| F.I Non-Res'd 2.5" T.P w/ CF CBE \| Axis Wheels \| Piecing together My Own Custom T4 Top Mount Single Turbo Kit Still in the works \|

05-13-2014, 08:03 PM	#20 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,655 Drives: 370 Rep Power: 944523	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. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph

05-13-2014, 10:43 PM	#21 (permalink)
jofro6 Track Member Join Date: Mar 2012 Location: Long Island, NY Posts: 603 Drives: 2012 370Z Touring Rep Power: 14	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 __________________ 2012 Red 6Spd Touring/Nav.. FI CF NonRes CBE and Res TP #682 Fly1 RS1 CF Fenders

05-14-2014, 07:11 AM	#23 (permalink)
jofro6 Track Member Join Date: Mar 2012 Location: Long Island, NY Posts: 603 Drives: 2012 370Z Touring Rep Power: 14	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 likes this. __________________ 2012 Red 6Spd Touring/Nav.. FI CF NonRes CBE and Res TP #682 Fly1 RS1 CF Fenders

05-14-2014, 09:52 AM	#26 (permalink)
09nismo498 Base Member Join Date: Sep 2010 Location: Chicago burbs Posts: 207 Drives: 14 GTR Rep Power: 15	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. __________________ 2013 370z Nismo Turbo 2017 Lexus IS200T F Sport (DD)

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