E85 also has a higher octane although less energy per unit so with a new map and bigger injectors it can perform better in boost applications then the 93 everyone is running. Most 93 is E10 now anyway which is probably why modern fuel systems can handle E85 and 95.

 

Misinfomation yet again....

Umm, YES there is a fuel filter, its built into the pump housing itself. This has been shown and discussed many many times.

 

Re-read what he wrote, slowly. It makes sense.

E85 does not cause hesitation and bad idle.

Reread.

 

Hope he is tuned for that, if not, bad things are bound to happen.

 

Curious about that....Doesn't depend on the tune...if he is tuned for 93 octane but has a mix that boosts the octane rating to say 98 or higher with his 93/E85 mix....how will it be damaging. Not being i dick I'm actually curious. I'm about to go E85 and thats been a concern of mine (switching back and forth between E85 and 93 since I'll be using the alt-map switch.

 

E85 is not simply higher octane., it is a completely different fuel It requires much more fuel to run the same a/f ratio. You cannot run E85 without the car being tuned for it.

 

The AFR ratio's are totally different. Stoich ratio's that is...

 

That's not necessary true. The Evo X runs so rich stock that the A/R are around 9.5:1. That just happens to be around what e85 wants to be for stoich.

If you car is tuned so that the A/R ratios are around 11:1 then I wouldn't recommend running a 50/50 mix.

My car is tuned to 11:1 on 91 pump and I've bumped the octane up to 92.5 by adding a couple of gallons of e85. It feels a little stronger but my butt dyno isn't that accurate. Usually, you shouldn't feel any difference if the car isn't tuned for the additional octane. I theorize that my car may be pulling some timing due to the crappy 91 and it doesn't now with the added octane.

I'm really liking the e85 so I'm probably going to pop some injectors in and get a full tune soon.

 

While it is true that 9.5 is very close to stoich for E85, that's under WOT, not while the car is in open loop fueling.

You don't want to run Stoich under WOT.

Basically, the thinking seems to be backwards.

 

stoich AFR on a gasoline wideband is different than stoich AFR on a ethanol wideband. This is a common mistake. Now if you would have said 1 Lambda is stoich for Ethanol and Gasoline, then you would be correct.

9.5:1 with Gasoline on a Gasoline calibrated wideband is just as far from stoich as 9.5:1 with E85 on a Gasoline calibrated wideband would be.

I think the issue with people being scared of E85 is there is so much misinformation posted it's getting recockulious.

-Bryan

 

Truth right thurr.

 

I have run E85 in my IX for almost three years, 46,000 miles so far on E85 with zero issues and all gains!

Also been running E85 in my 95 Talon for four years which sits for 8 months out of the year. Zero issues so far.

 

therefore E85 is just as reliable as 93 octance gasoline?

 

why not just run full e-85 instead of mixing?

 

I found an inline fuel filter that I will be using with my Buschur Double Pumper system.
http://www.jayracing.com/index.php?m...roducts_id=263