great test

 

I have been running on e85 since april on my setup. It made 471whp on a dyno dynamics machine. I get about 22mpg on the highway and see intake temps around 10 degrees warmer than outside temp. Great stuff, smells horrible but i can't complain at $2.39 a gallon.

 

I'm wondering what exactly you had to do to the fuel system to make it compatible with the E85.

Please share!

 

On triple_s1x's setup we're just using A/N lines from the fuel filter to the rail but other than that it's OEM and no problems for a couple of months.

 

That is cool.

 

Yeah about the only things that I can think of, that you would need to change are just any rubber hoses in the fuel system. The E85 is just like alcohol and it hardens and eats the rubber. I run methanol in my kart and it acts the same way, makes the lines hard and is really hard on any rubber or plastic components. I've been thinking about just converting my completely stock 94 civic to use E85. Almost every gas station here in SD has E85 too so it is super easy to get.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gLok &raquo;</TD></TR><TR><TD CLASS="quote">

No pre-mix 85% in barrels? I guess it defeats the purpose anyhow.</TD></TR></TABLE>

It is mixed at the pump from what I know.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alphajesse &raquo;</TD></TR><TR><TD CLASS="quote">I'm wondering what exactly you had to do to the fuel system to make it compatible with the E85.

Please share!</TD></TR></TABLE>

From what I have seen, (only months not years) short term, you do not have a problem. Time will tell.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDcompman &raquo;</TD></TR><TR><TD CLASS="quote">Yeah about the only things that I can think of, that you would need to change are just any rubber hoses in the fuel system. The E85 is just like alcohol and it hardens and eats the rubber. I run methanol in my kart and it acts the same way, makes the lines hard and is really hard on any rubber or plastic components. I've been thinking about just converting my completely stock 94 civic to use E85. Almost every gas station here in SD has E85 too so it is super easy to get.</TD></TR></TABLE>

Methanol and E85 are completely different animals. E85 isn't nearly as corrosive as methanol and will live with pretty much everything in a factory fuel system.

Regards,
Justin

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">

Methanol and E85 are completely different animals. E85 isn't nearly as corrosive as methanol and will live with pretty much everything in a factory fuel system.

Regards,
Justin</TD></TR></TABLE>

Agreed. I am of the school of thought that any car from 88-on (which is when I believe the government started requiring car makers to be tolerant to 10% ethanol) will not have a problem. There is a guy on the subaru forums that has been running it for something like 2 years straight in his WRX without any problems with corrosion.

With the car in the test, we changed nothing with the fuel system for E85 except that we bumped up the fuel pressure. All stock lines. I have another customer who made 209whp N/A using a stock pump and lines.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AF-P Dunc &raquo;</TD></TR><TR><TD CLASS="quote">

Did you log the runs? If so, what was the injector duty cycle on the gas vs. E85? </TD></TR></TABLE>

As a matter of fact, I logged every single WOT run. I keep forgetting to take a look at the IAT's but I can do that tonight. I will also look up the duty cycle at WOT for gas as well.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by servion &raquo;</TD></TR><TR><TD CLASS="quote">(which is when I believe the government started requiring car makers to be tolerant to 10% ethanol)</TD></TR></TABLE>

You would be correct.

Allmotor forum is talking about it too and has some good links.

https://honda-tech.com/zerothread/1699640

 

How did the NA car perform on E85? I'd imagine you could run a 13-14:1 CR on the stuff without a problem.

Regards,
Justin

 

As a matter of fact, he was telling me that his setup was 13:1 I can't verify since I didn't put the motor together, but his compression test was 250psi in all 4 (and that is up at 6500 feet) He loves it. I think its an excellent fuel for n/a cars because its not hard at all to get the fuel system to handle that amound of fuel demand, and its great for high compression motors that need the higher octane fuels all the time.

 

i was under the impression that you needed a bigger pump+bigger injectors as it requires more fuel?

 

It is true that you'll need more injector and fuel pump capacity. Dual bosch 044 pumps and 1600cc injectors would be a really solid setup for 30psi on E85. I have a audi friend running 33psi on E85, so it will handle the boost.

http://www.mswanson.com/~jgreen/car_home.html

 

Excellent test... I have been doing a fair bit of research with e85 lately and I really hope it becomes more readily available.

So I assume all of honda's fuel components are e85 compatible?

 

awesome test

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by servion &raquo;</TD></TR><TR><TD CLASS="quote">

As a matter of fact, I logged every single WOT run. I keep forgetting to take a look at the IAT's but I can do that tonight. I will also look up the duty cycle at WOT for gas as well.</TD></TR></TABLE>

Thanks The only thing I'd be worried about it running near 85% DC on gas. That wouldn't leave much room at all if I switched over to E85 and wanted the same amount of power......maybe I'll have to buy some 1600cc's haha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrecisionH23a &raquo;</TD></TR><TR><TD CLASS="quote">Excellent test... I have been doing a fair bit of research with e85 lately and I really hope it becomes more readily available.

So I assume all of honda's fuel components are e85 compatible?</TD></TR></TABLE>


Since 1988 the gov. had been requiring cars to be 10% ethanol tolerant. I have no long-tem data of my own (well nothing beyond ~4 months) to say that e85 is fine in stock honda fuel systems in the long run (if we're talking about a number of years +), but I'd bet money on it being fine. It has been fine in every single car that I have tuned with it thus far, and I can't find anyone who has had a problem with it and stock honda fuel components.

This car is going to the track tonight, I'll post results

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AF-P Dunc &raquo;</TD></TR><TR><TD CLASS="quote">

Thanks The only thing I'd be worried about it running near 85% DC on gas. That wouldn't leave much room at all if I switched over to E85 and wanted the same amount of power......maybe I'll have to buy some 1600cc's haha</TD></TR></TABLE>

If you're at 85% duty cycle on gasoline, you'd definitely have to change something to run E85. If I remember correctly, they went from somewhere around 60% to somewhere around 80-85%. I'll get exact #'s later

 

promising

 

I feel blessed that E85 is at nearly every station here in IL. at least where I live. I guess this is what we deserve since we are surrounded by corn fields.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDcompman &raquo;</TD></TR><TR><TD CLASS="quote">Yeah about the only things that I can think of, that you would need to change are just any rubber hoses in the fuel system. </TD></TR></TABLE>

just to err on the side of caution, i changed all my fuel lines out to Earl's prolite, since it is fine for methanol, it will easily handle the e85...

my 240 i am building i set it up with dual intank walbros, dual -6 feeds to a -12 line all prolite... should work well

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">It is true that you'll need more injector and fuel pump capacity. Dual bosch 044 pumps and 1600cc injectors would be a really solid setup for 30psi on E85. I have a audi friend running 33psi on E85, so it will handle the boost.

http://www.mswanson.com/~jgreen/car_home.html</TD></TR></TABLE>

perfect. I'm picking up some 1000cc injectors today and will probably pick up a single bosch 044 pump

 

How much power could 1000cc injectors make with E85? Without running the duty cycle past 90%.