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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > BMW N54 AccessPORT Beta Race Fuel and E-30 Maps



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      09-07-2012, 12:12 AM   #133
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Quote:
Originally Posted by sparkyblue View Post
Two issues for me, I currently am running DCI/Catless DP/Catless Mids/Berk Axleback. How big of a deal is it if I run the E30 map without an upgraded IC? Assuming I don't do anything crazy like track it or what not. Just some fun highway pulls, or maybe even possibly a spirited canyon run. Is it safe or tolerable to run with my current setup?

Second issue is that I live in CA with the terrible ACN91 gas. Can I
mix my ACN91 with E85 to achieve E30? I have a 135i, which holds approximately 14 gallons.
That's fine. There are people running E30 maps completely stock.
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      09-07-2012, 01:08 AM   #134
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Originally Posted by Evil///M View Post
That's fine. There are people running E30 maps completely stock.
Really?! Could you link me to a thread please. I've searched everywhere!
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      09-07-2012, 01:28 AM   #135
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Quote:
Originally Posted by sparkyblue View Post
Really?! Could you link me to a thread please. I've searched everywhere!
You haven't seen Shiv's E85 thread??
http://www.e90post.com/forums/showthread.php?t=729717

And here's a guy who's also using stock IC
http://www.e90post.com/forums/showthread.php?t=741204
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      09-07-2012, 01:45 AM   #136
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Quote:
Originally Posted by Evil///M View Post
You haven't seen Shiv's E85 thread??
http://www.e90post.com/forums/showthread.php?t=729717

And here's a guy who's also using stock IC
http://www.e90post.com/forums/showthread.php?t=741204
Yes, I saw his Stock E85 thread. But thats for Procede! I would think that these Cobb maps are designed for FBO as required, however being that I'm only missing the IC component only difference that makes is lower charge temps during long pulls or hard driving.

I saw on the other forums thread that people were running 45% E85 / 55% CALI 91. But they were messing with fuel trims?!
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      09-07-2012, 07:08 AM   #137
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Quote:
Originally Posted by blisstik View Post
If I put 10 gallons of 91 octane, how many gallons of E85 do I need to put for this map? It didn't say it supported 91 octane, only 93.

I'm doing a custom tune anyway but just wondering...
Quote:
Originally Posted by sparkyblue View Post
Two issues for me, I currently am running DCI/Catless DP/Catless Mids/Berk Axleback. How big of a deal is it if I run the E30 map without an upgraded IC? Assuming I don't do anything crazy like track it or what not. Just some fun highway pulls, or maybe even possibly a spirited canyon run. Is it safe or tolerable to run with my current setup?

Second issue is that I live in CA with the terrible ACN91 gas. Can I
mix my ACN91 with E85 to achieve E30?
I have a 135i, which holds approximately 14 gallons.
+3. I'm moving to a place that only have 91 octane and E85. Am I SOL after I move?
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      09-07-2012, 08:50 AM   #138
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Originally Posted by sparkyblue View Post
I saw on the other forums thread that people were running 45% E85 / 55% CALI 91. But they were messing with fuel trims?!
The fuel in Cali tends to be of lesser quality, so I don't blame them.
You should check with your state to see what the minimum legal ethanol content is, usually it should say it on the pump.

For example, here in Colorado, our fuel is rated up to 10% ethanol content, while our e85 needs to be a minimum of 70% ethanol for resale.
I use 2 gallons of 91 per 1 gallon of e85 which would put me at a minimum of e30. It's ok if you over 30 a little, but could be bad if you under calculate. Better safe than sorry.

Quote:
Originally Posted by Manny_World View Post
+3. I'm moving to a place that only have 91 octane and E85. Am I SOL after I move?
Not exactly, you can just flash another tune if you need to run regular gas.
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      09-07-2012, 09:56 AM   #139
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Quote:
Originally Posted by Evil///M View Post
That's fine. There are people running E30 maps completely stock.
Quote:
Originally Posted by sparkyblue View Post
Really?! Could you link me to a thread please. I've searched everywhere!
Quote:
Originally Posted by Evil///M View Post
You haven't seen Shiv's E85 thread??
http://www.e90post.com/forums/showthread.php?t=729717

And here's a guy who's also using stock IC
http://www.e90post.com/forums/showthread.php?t=741204
Guys, I would honestly hold off on running the e30 maps on an otherwise stock car.

18psi-13psi is a pretty hefty boost curve coupled with an aggressive timing map, there is going to be A LOT of back pressure(and in turn excessive EGTs) in the system. You'll see Shiv argue over and over that e85 negates that effect, I'm not going to argue that e85 will have a positive effect on back pressure and EGTs. HOWEVER at the same time in ALL his testing of stock, FBO and single turbos he has yet go install a single EGT probe in the manifolds to demonstrate how much of an effect it actually has(not sure why, honestly.)
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      09-07-2012, 09:57 AM   #140
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Guys,

COBB's E30 MAPs are specifically to FBO S2+. With 30% ethanol. I wouldn't use these maps otherwise. If you are looking to take advantage of E85 on your build, I would get a protune etune. I am S1+ or will be this weekend, with E30, ACN 91 and E85, and working with Jake @ Pro Tuning Freaks. By doing so will maximize my tune with 91 octane and ethanol. I am sure COBB will come out with more E30 MAPs, but in The meantime you'll just have to find other ways of getting maximum power of ethanol.
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      09-07-2012, 10:47 AM   #141
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I'm running a modified version of the E30 map on my stock+DCI car. Charge temps get hot. I run it at 50/50 with the scalars at 1.2 and I've been logging and pulling timing in a few spots. The biggest change I've made is in how much timing gets pulled due to air charge temps. I'm generally happy with it, but I never run full throttle for more than 1/4 mile at a time. It's definitely smoother than the E50 map I'd been creating previously on my own based on Stg1+.
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      09-07-2012, 04:50 PM   #142
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My car isn't stock, I've got DCI/DP/Full exhaust. Just missing the IC part which is "required" on the E30 map.

And my second issue is the fuel itself as I can only get ACN91
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      09-07-2012, 05:25 PM   #143
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Car feels great with the e30 map when I mix correctly... I just have a bit of trouble getting my mixes right. Going to try again this weekend. The power increase is definitely noticeable over Stage 2+ Sport, so much so that it'll break loose coming into power in 2nd gear

Tried logging at the track but it kept failing - AP was likely full. I was peaking 13.4psi on my best run of the night. Highest I saw all night was 18.4psi. Car felt like it was really picking up boost around 5500rpm, but struggled before that.

I need to try logging again, hopefully that'll explain what's up.
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      09-07-2012, 06:46 PM   #144
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Quote:
Originally Posted by sparkyblue View Post
My car isn't stock, I've got DCI/DP/Full exhaust. Just missing the IC part which is "required" on the E30 map.

And my second issue is the fuel itself as I can only get ACN91
Yeah no doubt cali 91 sucks, I am in the same boat. I have to mix 20% E85 just to run S1 Aggressive. A pro tune will optimize the use of ACN 91, since most of COBBs OTS MAPs are tested with 93.

FMIC is a must, with hot temps here in the valley, I average 140 IAT with stock IC. Bay area is cooler though, but prone to more heat stroke with long aggressive driving with stock IC.
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      09-07-2012, 09:04 PM   #145
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Either I have crappy tires or the E50 map I made from S1+agg is dialed. I can break loose in 2nd easily and it's on edge through max tQ in 3rd.

T
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      09-07-2012, 10:08 PM   #146
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This is somewhat related to this thread as I am trying to get some e85 working!...hoping someone can help me with an issue I am having with the accessport ... went to load a new map (e85 map!) and accessport got stuck trying to communicate with vehicle. So i tried to monitor live data and it says "cannot communicate with vehicle". I did update to the latest firmware just before trying this map change. Thing is, I did some logging just last week and no problems.

I did notice that the cobb cable is wobbly where it connects to OBD port when connected and if I push downward lightly on the connector the AP loses connection/power until i push it back up. However, it was the same last week when i was logging.

SO i am thinking it could be the firmware update OR the cable OR (praying it is not) the OBD port somehow got messed up. I took a pic of the OBD port if anyone can compare and see if anything looks "funny". Thanks for any advice. Yes, I posted this in the other cobb thread, just hoping for some quick help to get some e85 running this weekend.

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      09-08-2012, 02:31 AM   #147
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Quote:
Originally Posted by COMplex View Post
Car feels great with the e30 map when I mix correctly... I just have a bit of trouble getting my mixes right. Going to try again this weekend. The power increase is definitely noticeable over Stage 2+ Sport, so much so that it'll break loose coming into power in 2nd gear

Tried logging at the track but it kept failing - AP was likely full. I was peaking 13.4psi on my best run of the night. Highest I saw all night was 18.4psi. Car felt like it was really picking up boost around 5500rpm, but struggled before that.

I need to try logging again, hopefully that'll explain what's up.
Quote:
Originally Posted by Mangler View Post
Either I have crappy tires or the E50 map I made from S1+agg is dialed. I can break loose in 2nd easily and it's on edge through max tQ in 3rd.

T
Tried out the E30 Map with an approx 45-50% mix of E85 in the tank. Considering I was Stage 1 up until the last few days when I got my DP's in and went up to Stage 2. The jump to this E30 map is insane! Even with my Michelin PSS on Stage 2 V401 I couldn't break the tires loose in 1st gear on a roll out. But with this E30 map, I break 1st, and even 2nd no problem!

The rear end gets very scary under hard acceleration, and I get a side to side motion which is very un-nerving.

But this new found power is so amazing. I have been logging all day and will pull up the maps to check my LTFT/STFT & Timing corrections. My fingers are crossed that they are looking good, and from my butt dyno it feels to be running very strong.
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      09-08-2012, 05:33 AM   #148
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I've been running the E30 race maps for a few days. I've found that with my hardware(VRSF DPs, ETS FMIC, DCI) a mix consistent with about E35 (mix of E85 and Shell vPower 99 in Sweden) works best. With E30 it was a bit aggressive but E35 works very well.

The biggest issue for me with 6MT is the shift BOG/throttle closure (from high boost?!) and post shift corrections. I believe these are known issues but have sent logs to Cobb.

VD calculates about 430 whp with my setup and the car pulls great.

Edit: STFT will have great variance for a while after switching fuel while ECU gets used to environment.
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      09-08-2012, 08:13 AM   #149
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THis whole adaptations thing. If the DME is making 'adaptations' to the maps that we adjust, then how the hell do we know if the map we end up with is dialed? When everyone says wait for the car to adapt, how much are you talking about? Is it fuel map contingencies? Ign map changes that are held in a different map that it references in addition to the ign map we tune and load?

With all the years of tuning standalone EMS's, I just don't see how this happens.

T
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      09-08-2012, 08:25 AM   #150
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Adaptions after mapping is one thing, and sometimes you can feel a little hesitation when you step on it right after changing map.
What I was referring to was adapting fuel trims because of change in fuel. I see high variance on STFT right after refueling but they go down as ECU learns. At least that is how I interpret it as it runs very well and STFT gets less active. I guess LTFT should show if it learning or not..right?
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      09-08-2012, 12:30 PM   #151
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Quote:
Originally Posted by johmei View Post
Adaptions after mapping is one thing, and sometimes you can feel a little hesitation when you step on it right after changing map.
What I was referring to was adapting fuel trims because of change in fuel. I see high variance on STFT right after refueling but they go down as ECU learns. At least that is how I interpret it as it runs very well and STFT gets less active. I guess LTFT should show if it learning or not..right?
So adaptations only effect the fuel trims and thats it? Everyone always made it sound like it was making adaptations to all the maps that is why I was wondering.

T
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      09-08-2012, 02:39 PM   #152
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Quote:
Originally Posted by Mangler View Post
Either I have crappy tires or the E50 map I made from S1+agg is dialed. I can break loose in 2nd easily and it's on edge through max tQ in 3rd.

T
Would you care to share your map?
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      09-08-2012, 02:49 PM   #153
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Would you care to share your map?
I have. Search for some of my posts. I'm on my phone. I'll post it up in tho thread later.

T
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      09-08-2012, 03:24 PM   #154
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