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      10-25-2011, 11:12 PM   #23
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If you have the ability, can you log fuel injector duty cycle when you do?

I'm curious if they need to go above 80% to keep up. Looking forward to the results.

I know that generally SRT4 guys and Evo guys don't get along, but I'm seriously thinking about converting the srt4 I have to a straight-e85 setup. There are a few pure-e85 Evo's around here that are scary fast. Of course 400-450 front wheel hp might be a tad much for the torque-steer-plagued car with 225 wide street tires (Which is probably better for my axle shafts if we are really honest)
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      10-25-2011, 11:49 PM   #24
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Originally Posted by RnmEvo9 View Post
Next Tuesday I will dyno my car with E85/93 mix with Jb4 on map 7.
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      10-26-2011, 11:01 AM   #25
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Well.I have a 2011 N55 JB4 with Berk dp I will be doing this mixture today with data logging on the JB tune software n will try to.post results. Keeping my fingers crosssed its Ftw
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      10-26-2011, 11:44 AM   #26
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u will love it when it adjust and the ethanol hits...nice lil power boost
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      10-26-2011, 04:28 PM   #27
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Quote:
Originally Posted by VegasJD View Post
u will love it when it adjust and the ethanol hits...nice lil power boost
SO i filled in with 4 gallons of E85 and the rest 93 octane, i feel a lil bit more of power but how will i feel its full effect?
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      10-26-2011, 05:50 PM   #28
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Quote:
Originally Posted by RnmEvo9 View Post
Next Tuesday I will dyno my car with E85/93 mix with Jb4 on map 7.
Can't wait to see the results! :-)
Thought you would want to run on Map 5 to see how auto tuning parameters change with 93 versus 93/E85?

I guess even Map 7 93 versus Map 7 93/E85 (what % mixture?) should demonstrate the power difference as well.
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      10-26-2011, 07:49 PM   #29
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Quote:
Originally Posted by 135i_vs_ View Post
Can't wait to see the results! :-)
Thought you would want to run on Map 5 to see how auto tuning parameters change with 93 versus 93/E85?

I guess even Map 7 93 versus Map 7 93/E85 (what % mixture?) should demonstrate the power difference as well.
I have never used map 5, too conservative for my tastes! I have a few months old plot of my jb4 on map 2 making 370rwhp on straight 93 and I'll compare that to a map 2 on 93/E85 mix on Tuesday as all I've been running lately is this 50/50 mix straight for the past 3 months. I'll be doing 3 pulls, 1 on map 7, 1 on map 2, and 1 on map 0 all on e85/93 and I'll pull up my old plot of straight 93 on map 2.
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      10-26-2011, 08:38 PM   #30
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Quote:
Originally Posted by RnmEvo9 View Post
I have never used map 5, too conservative for my tastes! I have a few months old plot of my jb4 on map 2 making 370rwhp on straight 93 and I'll compare that to a map 2 on 93/E85 mix on Tuesday as all I've been running lately is this 50/50 mix straight for the past 3 months. I'll be doing 3 pulls, 1 on map 7, 1 on map 2, and 1 on map 0 all on e85/93 and I'll pull up my old plot of straight 93 on map 2.
I am going to grab popcorn when you post these dyno charts...
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      10-26-2011, 11:34 PM   #31
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Quote:
Originally Posted by RnmEvo9 View Post
I have never used map 5, too conservative for my tastes! I have a few months old plot of my jb4 on map 2 making 370rwhp on straight 93 and I'll compare that to a map 2 on 93/E85 mix on Tuesday as all I've been running lately is this 50/50 mix straight for the past 3 months. I'll be doing 3 pulls, 1 on map 7, 1 on map 2, and 1 on map 0 all on e85/93 and I'll pull up my old plot of straight 93 on map 2.
So you've been running half 93/ half E85 for the last 3 months? If so how does it feel compared to map #2 on pure 93? Anxiously waiting the results from the next dyno!
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      10-27-2011, 01:26 AM   #32
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      10-27-2011, 07:25 AM   #33
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Quote:
Originally Posted by BFD99 View Post
So you've been running half 93/ half E85 for the last 3 months? If so how does it feel compared to map #2 on pure 93? Anxiously waiting the results from the next dyno!
Yeah, I've been running that mix for the past 3 months because I did go back to pure 93 at one point in map 2, but the car felt sluggish compared to map 7 with the mix. Another reason why I tried going back was because of how often I have to fill up at the gas station. I figure I took about a 20% mpg less than straight 93, but the performance advantage is clearly worth it to me. So yeah, I pay about the same if not less at the pump, but I fill up a bit sooner than normal like every 4-5 days instead of every 7-8 days (depending how much fun I want to have).
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      10-27-2011, 01:34 PM   #34
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Awesome. Thanks for the response on the clarification. Guess I'll have to try this out for myself. Been wanting to try map 7 anyways. Been having to resist the urge to fill up with the 101 octane across the street here from work, that's $7.00 a gallon. LOL
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      10-27-2011, 06:26 PM   #35
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guys i went data logging this afternoon and i had E85 with a mix of 93 and on the graph that i had done manual sport with launch control it read to almost read 19.5 - 20psi of boost in a heart beat off of the hole idk how dont ask me its what the graph show as soon as my tuner send me the graphs ill be sure to post.
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      10-27-2011, 06:29 PM   #36
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Quote:
Originally Posted by alpinewhite3series View Post
guys i went data logging this afternoon and i had E85 with a mix of 93 and on the graph that i had done manual sport with launch control it read to almost read 19.5 - 20psi of boost in a heart beat off of the hole idk how dont ask me its what the graph show as soon as my tuner send me the graphs ill be sure to post.
Did you give the system time to adjust for the "new" octane level?
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      10-27-2011, 06:37 PM   #37
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Quote:
Originally Posted by alpinewhite3series View Post
guys i went data logging this afternoon and i had E85 with a mix of 93 and on the graph that i had done manual sport with launch control it read to almost read 19.5 - 20psi of boost in a heart beat off of the hole idk how dont ask me its what the graph show as soon as my tuner send me the graphs ill be sure to post.
You'll want to compare what your timing advance looks like with this fuel (after at least a few adaptation pulls) vs timing on strait pump gas. I have a thread somwhere on the E90 N54 section with some good comments on what exactly to look for. Basically you want to see timing advance stead flat or slightly increasing during a pull vs dropping in value during the pull. The rest of the details of how to do this will depend on your tune... Good luck!
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      10-28-2011, 08:58 AM   #38
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      11-01-2011, 04:16 PM   #39
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Quote:
Originally Posted by RnmEvo9 View Post
I have never used map 5, too conservative for my tastes! I have a few months old plot of my jb4 on map 2 making 370rwhp on straight 93 and I'll compare that to a map 2 on 93/E85 mix on Tuesday as all I've been running lately is this 50/50 mix straight for the past 3 months. I'll be doing 3 pulls, 1 on map 7, 1 on map 2, and 1 on map 0 all on e85/93 and I'll pull up my old plot of straight 93 on map 2.
It's tuesday!
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      11-01-2011, 04:41 PM   #40
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Quote:
Originally Posted by RnmEvo9 View Post
Next Tuesday I will dyno my car with E85/93 mix with Jb4 on map 7.
I am ready to eat left over Halloween candy, just waiting to see your results while I eat.
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      11-01-2011, 05:19 PM   #41
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Originally Posted by 135i_vs_ View Post
I am ready to eat left over Halloween candy, just waiting to see your results while I eat.
I have the results, I'll make a new thread in a short bit.
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      11-01-2011, 06:20 PM   #42
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Results are here: http://www.1addicts.com/forums/showthread.php?t=605895
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      11-01-2011, 07:23 PM   #43
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nice numbers
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      11-01-2011, 08:59 PM   #44
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Thanks for sharing the results! Your car is like
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