ValdezeEvo

So I've been messing with my E85 tune (switched on thurs) and I started out by leaning my map out to hit 12's during spool and WOT....I went and did a pull, put my info into VDR and my numbers for E85 came out lower than pump gas. My pump gas with cf of 1 is 271whp/296wtq while E85 was 252/262. I thought there was suppose to be gains from E85 straight from pump (even if minimal). Both pulls were same boost, but different places. Same timing map with different AFR's.

SyZyGy1394

iTrader: (4)

Well there you go, e85 burns slower, so you have to increase the timing advance in some areas...

ValdezeEvo

Saw this in mrfred's E85 tuning notes that's why i asked.

Colt4g63

iTrader: (8)

Go do some more runs ad make sure the road is FLAT. Mrfred is correct in his statement.

Splatzjackson

iTrader: (15)

I couldn't read through all the posts but does anyone have a recommendation for a fuel injector cleaner for E85 tuned engines?

Thanks,
Jesse

skiracer

iTrader: (1)

E85 itself is a heavy duty cleaner. Ever try using alcohol to clean something off?

If you want to clean your injectors, i highly recommend these guys:
http://www.rceng.com/Fuel-Injector-C...ajb3lsSogjJL24

buchnerj

iTrader: (19)

No, this is not the case. If you just put E-85 in a car that is prepped and ready for 93 it is going to run like ***. Its a good thing you changed your fuel map or you could have really damaged the motor by running it way too lean.

The whole benefit to E-85 is the fact that it has an octane rating (RON) of around 105 (depending on season and actual content of EtOH) With that heightened octane rating it has the ability to be run with much more timing. It also burns cooler for the motor, thus leading to happy, cooler EGTs, etc.

You must edit the timing map and then turn the wick up on the boost and then you will see the gains you want. This is the same for any type of race fuel you want to run. The whole advantage of them is the high octane, and the ability to run more timing and throw more boost at it. So, edit those tables and you'll be set. Just keep an eye on the AFR's keep them in the high 11's to mid 12's at WOT, and you will be alright.

buchnerj

iTrader: (19)

That is really unnecessary. As stated before, E-85 and primarily ethanol is a great cleaner by itself. No need to throw more unnecessary cleaners/detergents/chemicals into the mix that could have possible adverse reactions to what you are doing.

Unless you have a serious problem with injector gunk, then its not needed. There are some issues with gunk, but I am pretty sure that was from detergents used by the gas stations/companies that was used in their 93-87 octane they mixed with the E-100 on site (to make the final E-85) and it is not widespread. Just search around for a picture of a gas motor after X amount of miles, then a motor that has run on E-85 or ethanol after the same amount of miles. You will see what I mean.

Splatzjackson

iTrader: (15)

I haven't taken my injectors out to see if there is a build-up or not. I'll check it before I buy anything. Thanks, Jesse

buchnerj

iTrader: (19)

Just a quick question. What AFR are most of you shooting for at idle? Just curious.

mrfred

iTrader: (50)

Stoich.

10isace

iTrader: (12)

Since I'm on an stock 8 turbo, should I assume have my timing set about 4 degrees more than this evo 9 map? From what I've been logging with my theory is that 6 degrees at 3500-4000 at WOT is too much timing. I'm getting 3-4 counts of knock. This is the same area I'm getting knock during part throttle, which is considered false knock by a lot of tuners. Is this false knock too? I've tried lowering the timing a degree at a time as low as 4 degrees with not much relief. AFR's are at 12.0.

TKEVO

iTrader: (43)

So i read yesterday that they are going to stop E85 production here soon

1outlaw

Why would that be?

TKEVO

iTrader: (43)

http://i.autoblog.com/2011/06/17/sen...nol-subsidies/