Just wondering if it's possible to run e85 on the ss/tc! Are the injectors capable of running it and also the motor? I would imagine fuel lines would have to be changed and car would prolly have to be retuned to account for the fuel difference! Just looking for some info about it and maybe some suggestions to go about putting it together? Correct me if I'm wrong but I would think the actuall performance of the car would increase such as hp and tq curve with what I have heard it does only get 2 to3 mpg less then running 93 oct! Let me know what you guys think about the idea please correct me if in wrong, just be gentle!!

 

The engine can handle E85. There are a few members who run it. But you will need it tuned for it.

 

i figured there would be easier ways to get more power than this, considering you will have much higher fuel needs and that seems to be one of the physical limits of the LNF

 

You will get about 70% of your normal mileage with E85.

So, if you normally average 10 mpg, then yes, you'll only get 2 or 3 mpg less. More like 7 to 10 mpg less on a Cobalt though.

 

Who's running it? I'm interested if we have enough fuel available for the injectors pulse width. I doubt it though.

 

E85 does not work well on the LNF. You lose more HP from widening the injection pulse than you can ideally gain from switching to E85.

 

Thanks Matt. I was looking at it from the cyl cooling angle as well as KR that is constantly an issue for me.

If it's about the same HP and it'll have enough fuel for 7k rpm's I'd be willing to try it. I've read about the pulse widths not being wide enough to support the amount of fuel needed though.

 

I would convert my LNF to take hydrogen = more power and fuel effiencent. If it was possible. Hydrogen is really the true alternative fuel of all, done a paper on it in college. Better than running on electric battery and E85.

 

A quick conversion using the Stoich of 14.7 for gasoline and 9.765 for E85 means my Lambda at cruse would be .666 to compared to 1.0 on gas and .586 would be the ~.88 I run WOT now if I did it right. Lots more fuel needed. Be nice to know if it'd work or eat anything up.

 

That is the nice thing about using Lambda instead of A/F ratio. 1.00 Lambda = 14.697 A/F on gasoline, but 1.00 lambda = 9.765 on E-85. The LTFT will shift to +20 or so and the STFT to +10 or so to compensate normally. We need at least 30% more fuel pump volume and 20-30% higher injection pressures to help properly atomize the mixture.

 

So from what I can tell the lnf does not benifit as well as other cars do by the switch?

 

Not even close.

 

A fully bolted LNF runs very close to its fuel limits. E-85 requires about 30% more fuel.
for the RPM range where you arent runing close to the physical limit of the pump your car would a decent power boost until you reached static flow from injectors and then your car would die.

 

On standard fuel injection cars, this would be true. DI setups make less power as the injection pulse approaches the limits of the injection window.(approximately 35% duty cycle) We did quite a bit of E85 testing on the LNF. We saw gains when we were when the duty cycle on gas was less than 24% and the duty cycle on E85 was less than 32%. This is only about 275whp range on stock fuel pressure, or ~315whp on raised fuel pressure.

 

what is the point of e85, i mean im sure it runs cooler, but u get less gas milage and less power. why do people run it?

 

The octane rating of E85 is well over 100, and by taking advantage of this through tuning a car can make significantly more power on E85 than regular gas, or even race gas in some cases.

Plus is smells like popcorn.

 

E85's octane rating is higher than 93 Premieum, and cheaper to run than 87 Regular. In other words, you can have insanely advanced timing but not have to pay for race gas.

Plus for those who give a crap, good for enviornment.. blah blah blah.

 

did quite a few projects on this subject. Definitely not that good for the enviroment, really ends up being a wash when you look at all the effects

 

All the hoses and such that are used for fuel are not made for E85, you would have to change some of the stuff out.

 

so it basically does the same thing as meth injection without the meth injection. well i guess it is 85% meth so that would be why. Another reason to run meth even without a tune, it ups ur octane so no worries about getting cheap ass gas as some stations have.

 

um. no. thanks for playing.

 

hahah^^^ agreed

 

All the hoses and components that handle fuel on our car are rated for atleast E20. The process for making hoses E20 proof is much the same as making the E85 proof.

 

The LSJ is capable of E85 without an issue. The main things needing to be done are just larger injectors and a tune.