[jgoens]

Originally Posted by sicmadek

First off never run e85 with any map other than map 2 if you dont know what youre doing. If you run map 5 or 7 you will have to raise your fol!!!!

I always leave it on Map 5 even on non e85 weeks. I've ran logs on all the maps and they are pretty similiar.

[sicmadek]

Originally Posted by jgoens

I always leave it on Map 5 even on non e85 weeks. I've ran logs on all the maps and they are pretty similiar.

I know how to read the logs. I run e45 and i test the e at the pump everytime. Fol does matter if you are running high e85 mix and high boost. That is why i said map 5 & 7. Chances are none of you are testing at the pump and you just throw 5 gals in. If its e50 out the pump then you are barely getting a e20 mix. So many details missing in this thread.

[F30Beast335i]

Originally Posted by sicmadek

I know how to read the logs. I run e45 and i test the e at the pump everytime. Fol does matter if you are running high e85 mix and high boost. That is why i said map 5 & 7. Chances are none of you are testing at the pump and you just throw 5 gals in. If its e50 out the pump then you are barely getting a e20 mix. So many details missing in this thread.

I always test before I pump , my e85 at local station stays about e75-e83 normally . That's why on occasion I will run it with a 110 octane . The true upgrade to all this is PI !

[JaredG_F30]

I pump into portable fuel tanks and test in the garage. If I plan to run E30 mix then I just make sure to keep 4 gals of E85, which has already been tested, in the trunk and strapped down. That way I can mix even if I need gas when there is no corn around.

Originally Posted by F30Beast335i

I always test before I pump , my e85 at local station stays about e75-e83 normally . That's why on occasion I will run it with a 110 octane . The true upgrade to all this is PI !

[jgoens]

Originally Posted by sicmadek

I know how to read the logs. I run e45 and i test the e at the pump everytime. Fol does matter if you are running high e85 mix and high boost. That is why i said map 5 & 7. Chances are none of you are testing at the pump and you just throw 5 gals in. If its e50 out the pump then you are barely getting a e20 mix. So many details missing in this thread.

Yeah, honestly I'm pretty casual about it--I put in less than 5 gallons and more than 4 gallons with the exact number basically wherever I feel like stopping. I keep it conservative.

If it is less than e85 no big deal--just an increase in ethanol makes a difference and it's not like I get lots of races or go to the track. But, I do respect those that want to get things exactly specific and push their cars.

[s2kvee]

Alrite.. so I got my supporting mods done..

Jb4 installed, currently running map 2
Afe momentum cold air intake
Catless Downpipe
MPE axleback
ER Charge Pipe
vRSF intercooler..

Do I need anything else? Can I just throw in 2-3gallons of e85 mixed with my 91 and work my way up?

Do I need any additional sensors or hardware to install (aftermarket flex fuel kit?) I already have the JB4 flex fuel wires plugged in..

How can I get an ethanol content reading out of my JB4? So I know what mixture i should or am running .

[Eternal]

Subscribing to learn more.

[badbread]

Originally Posted by s2kvee

Alrite.. so I got my supporting mods done..

Jb4 installed, currently running map 2
Afe momentum cold air intake
Catless Downpipe
MPE axleback
ER Charge Pipe
vRSF intercooler..

Do I need anything else? Can I just throw in 2-3gallons of e85 mixed with my 91 and work my way up?

Do I need any additional sensors or hardware to install (aftermarket flex fuel kit?) I already have the JB4 flex fuel wires plugged in..

How can I get an ethanol content reading out of my JB4? So I know what mixture i should or am running .

I started with about 3.5 gallons of e85 on my 2013 PWG and worked my way up every fill up. Once I hit about 3.8 gallons my car didn't like it so much.

Originally Posted by F30Beast335i

I always test before I pump , my e85 at local station stays about e75-e83 normally . That's why on occasion I will run it with a 110 octane . The true upgrade to all this is PI !

Mind sharing how are you testing at the pump?

Thanks!

[jgoens]

Originally Posted by badbread

I started with about 3.5 gallons of e85 on my 2013 PWG and worked my way up every fill up. Once I hit about 3.8 gallons my car didn't like it

Thanks!

Interesting..I have a 13 pwg as well and I put 4.5 or more in and have not had any issues. What does your car do if you put in more than 4 gal?

[badbread]

Originally Posted by jgoens

Interesting..I have a 13 pwg as well and I put 4.5 or more in and have not had any issues. What does your car do if you put in more than 4 gal?

Freeway speeds at high RPM's it was stuttering and losing power. I read over at n54tech this was a symptom of too much e85. I just got my fuel pump replaced via the recall, I wonder if I can run more now...?

[yoandry]

Originally Posted by badbread

I started with about 3.5 gallons of e85 on my 2013 PWG and worked my way up every fill up. Once I hit about 3.8 gallons my car didn't like it so much.



Mind sharing how are you testing at the pump?

Thanks!

3.8g and how many for pump? I put 5gl of E and 10gl 93 and not issues at all.

[badbread]

Originally Posted by yoandry

3.8g and how many for pump? I put 5gl of E and 10gl 93 and not issues at all.

On average about 10 gallons, I'm going to try more next time for sure. I have a PWG and from what BMS says the PWG's can handle more e85 than the EWG's...

I'm on the MHD beta program so I'll try as soon as they release an e85 map.

[JaredG_F30]

Originally Posted by badbread

I started with about 3.5 gallons of e85 on my 2013 PWG and worked my way up every fill up. Once I hit about 3.8 gallons my car didn't like it so much.



Mind sharing how are you testing at the pump?

Thanks!

Fuel it ethanol tester...

http://www.fuel-it.biz/ethanol-content-tester/

[kevinjt]

Subbed for Science

[s2kvee]

havnt done any Ethanol content testing but i did throw in 3 gals of E85... ran fine... no hiccups... might go with a bit more next time.

[F30Beast335i]

Originally Posted by s2kvee

Alrite.. so I got my supporting mods done..

Jb4 installed, currently running map 2
Afe momentum cold air intake
Catless Downpipe
MPE axleback
ER Charge Pipe
vRSF intercooler..

Do I need anything else? Can I just throw in 2-3gallons of e85 mixed with my 91 and work my way up?

Do I need any additional sensors or hardware to install (aftermarket flex fuel kit?) I already have the JB4 flex fuel wires plugged in..

How can I get an ethanol content reading out of my JB4? So I know what mixture i should or am running .

If your truly wanting to run more than 3 gallons of e85 you need to upgrade your LPFP . A stage 2 will do it . Walbro 450 pump

[s2kvee]

would it be safe to run map2 with a E30 mix?... from what ive been noticing, ive only been hitting 10-12psi with Map5 both 100% 91oct as well as E30 mix, however with Map2 on 100% 91, ive been able to peak 14-16psi, at one point, i hit 18-19psi

[F30Beast335i]

Originally Posted by s2kvee

would it be safe to run map2 with a E30 mix?... from what ive been noticing, ive only been hitting 10-12psi with Map5 both 100% 91oct as well as E30 mix, however with Map2 on 100% 91, ive been able to peak 14-16psi, at one point, i hit 18-19psi

Yeah that's not a problem at all but you'll be better off running map 5 tho .

[the dope steez]

Originally Posted by F30Beast335i

Yeah that's not a problem at all but you'll be better off running map 5 tho .

Bumping this thread with a question, I tried E85 for the first time today... car f'in rips. Too bad I can't get it anywhere near where I live, I just happened to be on a road trip with the laptop.

Anyways I'm on bootmod3 stage 2 and ran the E30 map with a little over 5 gallons of E85 mixed with Costco 91 (ethanol free) to fill the tank. I referred to the calculator provided earlier in this thread to formulate the ratio. I was only able to take one log due to traffic, but aside from a brief overboost/throttle closure the log looked solid to me.

I see that nobody here recommends starting with that much, so what should I keep an eye out for on my logs? HPFP seems strong at over 2000 psi, timing looks good. I'm on PWG w/ fuel pump recall.

Thanks in advance.

http://www.bootmod3.net/log?id=5b429adbd10b43793494a39e

[ChillVibeF30]

Originally Posted by the dope steez

Bumping this thread with a question, I tried E85 for the first time today... car f'in rips. Too bad I can't get it anywhere near where I live, I just happened to be on a road trip with the laptop.

Anyways I'm on bootmod3 stage 2 and ran the E30 map with a little over 5 gallons of E85 mixed with Costco 91 (ethanol free) to fill the tank. I referred to the calculator provided earlier in this thread to formulate the ratio. I was only able to take one log due to traffic, but aside from a brief overboost/throttle closure the log looked solid to me.

I see that nobody here recommends starting with that much, so what should I keep an eye out for on my logs? HPFP seems strong at over 2000 psi, timing looks good. I'm on PWG w/ fuel pump recall.

Thanks in advance.

http://www.bootmod3.net/log?id=5b429adbd10b43793494a39e

Have you ran E85 in your car since?

Im getting ready to switch to the E30 map and start running E85 as well, once I get my stage 2 LPFP installed.

[the dope steez]

Originally Posted by ChillVibeF30

Have you ran E85 in your car since?

Im getting ready to switch to the E30 map and start running E85 as well, once I get my stage 2 LPFP installed.

Nope, only filled one tank and now have no means of getting any more without driving three hours

Car ran f'in awesome, not only more powerful but felt smoother and cleaner. Probably sounds crazy but it didn't feel like the engine was working as hard, more effortless torque I guess...

If you can, get a tester if you plan to run it often, and do the calculation as per the link earlier in this thread. Definitely a lot of fun and also a cost-effective way to increase octane safely.

[JaredG_F30]

I've been running the bm3 E30 OTS map with about 2.5 gals of E85 per tank for the last 3 months. Car runs great and the smell with catless DP is less noticeable. I'm about to bump up to 3 gals on next fill-up.