I was wanting to know what kind of setup needed to run this fuel? I have these mods, lexus afm, t4 turbo .70 cold side, .68 hotside, internals modified and fuel as well, with a hks s-afr for piggy back comp. Any help would be appreciated!
Running E85 straight?
- Thread starter JMBSupra
- Start date
This article is on a site for Mustangs, but most of the info will apply to other vehicles.
http://www.e85mustangs.com/tuning.html
-AM3
http://www.e85mustangs.com/tuning.html
-AM3
search figgie... he covered this a few years back. basically fuel rail has to be treated and injector size needs to be increased even on a full stock setup. Fuel pump needs to be re considered as well...
It REALLY leans out the af ratios with 20-30% mixes when compared to regular pump. Careful when tuning!
It REALLY leans out the af ratios with 20-30% mixes when compared to regular pump. Careful when tuning!
grimreaper;1448354 said:
Pump should be fine, rubber lines too, we have a guy on the MR2 boards running a high c/r stroker 4age, he is the on stock pump and fuel lines for 4+ years now no issues.
But if it was me, just to make me feel better at the end of the day, I would replace the fuel lines with some kind of -AN fitted stainless braided line from Aeroquip.
http://www.supramania.com/forums/showthread.php?t=17780
Im sure figgie can chime in later. watch the curb
(this isnt an mr2 setup, what some guy on another forum did has no relevance in tech )
and yes ive seen the scooby threads and replies from walbro about using their pumps in e85. Havent seen a definite answer if it will actually survive long term though...
Im sure figgie can chime in later. watch the curb
(this isnt an mr2 setup, what some guy on another forum did has no relevance in tech
)and yes ive seen the scooby threads and replies from walbro about using their pumps in e85. Havent seen a definite answer if it will actually survive long term though...
As a rule when we converted to E-85 on our FSAE car, we used the standard fuel multiplication factor on the AFR's to 1.6 times more fuel. This is what your wideband will read instead of normal. Basically, you have to dump 1.6 times as much fuel (estimated) into the combustion chamber. The problem that has arisen and the question behind the upgraded fuel pump, hard lines and rail is the extra corrosiveness of the E-85. It has a much higher potential to damage your lines and system than regular gasoline, plus it is flowing at a much higher rate. Just be careful and watch for leaks!
i was just looking into this the other day.
IIRC figgie was goin off about lambdas.
the wideband doesnt read in a/f it reads in lambda. therefore the wideband will read accurately wether you're running e85 or regular pump gas.
the pump, lines, injectors, and o-rings need to be changed at the very least or the e-85 WILL eat through everything.
IIRC figgie was goin off about lambdas.
the wideband doesnt read in a/f it reads in lambda. therefore the wideband will read accurately wether you're running e85 or regular pump gas.
the pump, lines, injectors, and o-rings need to be changed at the very least or the e-85 WILL eat through everything.
^ right, so if your wideband is set to translate lambda to gasoline scale, it will still output in the normal 14.7 stoich even though e85 is being run...
this guy says it better
this guy says it better
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Wow you guys think E85 is wayyy more corrosive than it really is. Most of your issues will be age of the lines and not what the material composition is.
Having personally converted a supra to E85 and running it this past season, the biggest issue I had was rust breakup in the tank, and having that clog filters, once that was fixed and a better filter installed all was good.
Having personally converted a supra to E85 and running it this past season, the biggest issue I had was rust breakup in the tank, and having that clog filters, once that was fixed and a better filter installed all was good.
I see perfect relevance here to an MR2 being converted, its E85 were talking about, not like they used some super special rubber fuel lines on the Supra but used something different on the 2.
Same with the fuel pump, its still Denso.
I do believe people overeact alot about its corrosiveness, is it more than regular gas sure but not like some put it. I would rather go off personal accounts of someone whos switched versus alot of what is out on the net which could be alot of speculation.
Same with the fuel pump, its still Denso.
I do believe people overeact alot about its corrosiveness, is it more than regular gas sure but not like some put it. I would rather go off personal accounts of someone whos switched versus alot of what is out on the net which could be alot of speculation.
your basing the assumtion that because it worked in an mr2 that it will work exactly the same in an mkiii supra. Thats not how the tech section works.
grimreaper;1448768 said:
I understand this is a MKIII Supra community, but were talking fuels, what needs to be done to "convert" is the same for any car not built in the E85 flex fuel age. So if you would like to point out specifically how E85 in a MR2 is different than E85 in a Supra please do.
Been reading up on E85 a bit more over on the E85 forum www.e85forum.com they all tend to agree standard fuel injection hose is just fine with E85.
Mainly due to them being made with Nitrile inner linings, and Ethyl alcohol has little to no effect on Nitrile, then your adding gas diluting it, so again the little to no effect gets even smaller. And comercial E85 has corrosion inhibitors, so thats a plus vs making your own ethanol blend at home.
Look here:
http://www.dupontelastomers.com/crg/tlargiguide.asp
Click on EthyL alcohol and see what it harms.
Heres a good read also on its contact with aluminum:
http://e85forum.com/about489.html&highlight=metal
and another about O-rings:
http://e85forum.com/about21.html&highlight=metal
The more I read up on it, the more it seems people really overeact to switching to E85, now there is 1 thing I would wonder about in the compatibility regard.. our fuel pump filter socks.. they are a plastic material. It may not like Ethanol.
steveaw11;1448904 said:
Most likely nylon, but that is a guess on my part.
I have run menthanol in cycle & kart engines, that had nylon parts on the carbs,
and had no problems what so ever.
I guess an e-mail to FuelPumps.net (Walbro distributor) will be in order here.
could have sworn this was about running a different fuel on a stock hardware supra (pump, lines, tank, rail, injectors). again, your word of mouth from some other forum about what some OTHER guy did is great but not what ANYBODY should base their decision on. Thats not what this section is about. If YOU have run it by all means post what your outcome is/was and the like... 3rd hand experience is BS when looking for HARD facts when it comes to something as critical as the fuel system.
grimreaper;1448921 said:
Other than the pump flow and injector size, its the same materials as 99% of every other Toyota made in the Era, Supras are not so special Toyota made them of all new materials from front to back.
Do you not see that relevance when it comes to talking about a fuel switch?
Your right this is the Tech section but honestly this could go in many different sections of the board and be relevant, maybe this board needs a alternate fuels section?
Thanks for all the info, I think I'll run gasoline for a while since I just got it back on the road. Sounds like to much work right now, I just want to put my foot in it since it has been over 1 year since I last drove it!!!!
Just got this from the Walbro people:
All Walbro automotive fuel pumps are designed to
work perfectly with ethanol/gasoline fuel mixes, including E85.
Chris Myer
http://www.Fuel-Pumps.net
All Walbro automotive fuel pumps are designed to
work perfectly with ethanol/gasoline fuel mixes, including E85.
Chris Myer
http://www.Fuel-Pumps.net
Aeromotive has changed thier "stance" on the A1000 fuel pumps and E85 useage. They also say that it is ok to run E85 on thier pumps now.