Anyone fill up e85 yesterday for .85 cents a gallon ? My buddy filled up like 11.5 gallons of e85 for like 10 bucks from Thorntons, they had the discount for Black Friday.

 

Just checking in that I have been running E85 in my near daily driver since Jan. 2007--almost four years now. Have accumulated about 45K miles using strictly E85. It's been fun and trouble-free. I run up to 25psi in 5th gear on GT3076R. :D

 

1 there aint that many E85 stations.

2 Gas is cheaper then E85.



Think about if you were going on a road or to a place that is 3 hours away and your car need gas and theres no station that sells E85. Your pretty much fuked on that. My point is that it is better to run on gas because there alot more options for gas stations.

 

But like most you have 2 maps one E85 and the other 91

 

There are plenty of E85 stations around, just in my town alone there are about 5.

Gas is not cheaper than E85, last I checked E85 is much cheaper.

I hear you on the road trip part, thats the only complaint I have about it. Planning trips ahead of time is what you would end up having to do, there are sites that list nearly every gas station in our country that has E85 available

But to be able to run a fuel Equivalent to 105 octane is awesome. You use a little bit more fuel than with regular pump gas, but to be honest it all equals out in the end.

im not worried about fuel economy when it comes my car because I usually beat the **** out of it.. kinda negates the point of trying to get good gas mileage.

 

87 octane is $2.87 in my area
E85 is $2.22 in my area hmmmmm...


my tuner was able to run alot leaner AFR's while i'm just cruising around. the gas mileage is about the same as pump gas if not better if you never beat on your car for a full tank. but there is no fun in that lol.

 

Yeah the RC550s will be getting replaced with FIC 900s that I picked up. My turbo kit isn't on yet, but I know the RC550s max out on a similar setup to mine on 12-13psi with e85. I still have a single TRE intank pump, so I'm thinking that will be my limit right now. TRE is comparable to walbro, and they say it can handle pressures up to 125 psi.

 

Tuned my engine [1.8ltr B] on E85 last saturday. Stopped at 760whp@8500rpm because the twin in tank walbro's couldnt keep up. The engine makes peak power @ 9500rpm. A full run should top at least 820+whp.
My FIC2150's were still at 65% DC.
I thinks its time for 2 deatschwerks.

Just sharing

 

E85 cranked right up this morning at 18*F IATs. Took about 2-3 more cranks than a normal warm start.

 

does anyone know the limit of rdx 410cc injectors running e85, im trying to get 250whp all motor on a h2b

don't know if the rdx will do it

even if i bump it up to 70psi of fuel psi to make them 550cc?

they are rated to 410cc at 38psi or 550cc at 70psi

thanks

 

Saw this and thougt id share mine.

1.9L, 9.7:1, Garrett 4294 journal bearing, PTE 1600's, Aeromotive A1000, -8 line, Skunk2 Pro1's. Just the basics...721whp 483tq on 24psi.

Will be putting my DSM project on E85 as soon as i get a legit pump and injectors. Maybe tryin E98.

 

So.....has anyone tinkered with how much power (through whatever injector) those new aeromotive 340s will hold?

 

bump

 

I've maxed out a single A340 pump on our dyno at just over 500HP with 2150cc injectors.

 

So to run e85 to HAVE to be tuned on it? Sorry for the newb question. I've just been always wondering. And if you don't,can you switch between e85 and pump when you please?

 

You definately HAVE to be tuned for it. It does not run at or is tuned to the same fuel to air ratio as gasoline.

If your tuned on gas and you put e85 in, it would lean out quite a bit and you would be riding a tow truck home in short order.

 

I think you'd need more than 70psi to get enough fuel flow to reach 250whp on e85 with a safe duty cycle... and then you might be out of the efficiency range of your pump, depending on which one you're going with. 250 flywheel hp would probably be doable.

 

Just a clarification, but I'm pretty sure you don't have to get a "custom tune" per se but you will need to increase fueling +30%.

 

No. you do need a "custom tune" because the injector duty cycle and ms timing are different. you don't just "add fuel" by 30% as a blanket approach.

 

Are you saying he could just add 30% fuel across the board and it would be ok. No less, how would you add 30% fuel without tuning changes, just slap in some 30% larger injectors on the tune is has maybe.



Tuning is required to properly change to e85 from gasoline, or for that matter any change in fuel type you should check your tune and adjust accordingly. Just adding 30% more fuel is not the answer. It is not a constant that 30% more fuel than what you ran on gas will result in the correct a/f. Tuning is always "custom", well... it should be (lol) and thats the point. Each and every setup is unique, so each setup requires a unique amount of fuel and timing at any given point in the rpm to operate safely/ maximize your power.

 

I'm saying if you upgrade the injectors/fuel pressure to compensate for the difference in energy density it'll run just fine, that's it though neither great nor bad. E85 timing is not that different than Gasoline unless you get really rich or lean. A custom tune is still the best approach. But if you're just trying E85, upping the fuel flow first is the easiest way to get started.

 

I would think tuning between pump and e85 would be a huge difference. You're going from 105 octane (roughly) to 93 (or 91 depending what state you live in). That much of a difference in octane would require much more than just adding more fuel.

Just to be safe, do NOT run pump gas if you're tuned on E85 or vice versa. I'd be scared to find out the consequences

Just my .02

 

That's a myth. E50-E85 is 95.4-95.6 AKI octane. http://delphi.com/pdf/techpapers/2010-01-0619.pdf. You can thank the Ethanol lobby for that one.

Consider this, all FFVs run on 87 AKI octane.

Running Gasoline on an E85 tune is dangerous, no doubt about it. But I've yet to hear of an engine failure from running E85 on a Gasoline tune. Call me crazy but I only ever read stories of how E10 destroys. Coincidence? I think not!

 

I keep forgetting you minnesotans are sold on E85 like its p**sy, or as though they have as much stock in it as though Facebook were on IPO. Wait until those subsidies end next year... hahaha.

You'll never change the mind of a Minnesotan or a Wisconsin resident, as they don't know what its like to not have it everywhere.

 

corn smells so much better than regular old gasoline