View Poll Results: Pump & meth or E85
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Pump & Meth
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2 |
5.00% |
E85
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38 |
95.00% |
11-24-2009
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#21
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Join Date: Apr 2008
Location: Willmar, MN
Drives: 91GSX; 98 GSX; 92 Tsi AWD; Kawasaki ZR7
Posts: 319
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Re: Pump & meth vs. E85
The best mileage I've got on E85 was 23, the best on gas was between 25 & 26. Even in town I only lose a couple MPG's. I save like $10 per tank, and only lose a couple MPG's, I'm still saving money while making the most HP. I was running the stock o2 on gas, and was running my LC1 for closed loop when I got my best E85 mileage of 23, and it was set for around 11.5:1 (17.25:1 gas equiv AFR) and I was still using the 95 EPROM ECU at the time.
I've been running E85 for a few years in my DSM's and I've never noticed a difference in AFR's throughout the year, and I drive mine all through winter too. If you run closed loop it shouldn't change as open loop uses the high fuel trim (even though loggers don't show it that way), at least on 1g's and 2g's. I'm running full open loop now and I still don't see a difference, even though I'm sure the gas percentage has went up. One of these day's I'll test the fuel to see for sure.
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11-24-2009
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#22
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Join Date: Jun 2004
Location: Prior Lake
Drives: Icarus
Posts: 1,375
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Re: Pump & meth vs. E85
At 370 stations serving E85, Minnesota has the largest capacity in the nation by far. I Recommend you take advantage of it... while you can.
I use my DSM only for personal entertainment. It is running on a stand alone in open loop only (~11.5 afr, 25* timing) I get 14 mpg with a heavy throttle and small turbo. At the same AFR, just cursing to Duluth, a few triple digit bursts here and there, I got 18 MPG. I am sure if I lean it out and increase the timing at cruising, I could do mid 20's (AWD). I haven't tried DD e85 though, so it might be a PITA scheduling fillups.
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11-24-2009
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#23
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: Pump & meth vs. E85
Thanks for the insight guys a good thread here, a lot better posts.
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11-24-2009
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#24
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Join Date: Oct 2003
Location: Big Lake MN
Drives: 98 Eclipse GSX Auto
Posts: 1,516
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Re: Pump & meth vs. E85
I voted E85. I love it and will never go back to pump gas as long as its available.
I almost always fill up at the same station on my way home from work. Ive never had a problem with my injectors gumming up since my station has a new e85 tank. The gumming problem usually only happensif you fill at a station that uses a storage tank that was used for gasoline before E85.
The lower cost of E85 will make up for your loss in fuel milage. The only downfall would be the availiblity and cold starting Isues. If your tune is conservitive you shouldnt need to retune mutch between the blends. You also have to factor in the added cost of a good meth kit and the meth its self.
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11-24-2009
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#25
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Join Date: Sep 2006
Location: new brighton
Drives: 04 evo
Posts: 1,212
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Re: Pump & meth vs. E85
I would say just stay with e85 since you have the holiday just down the road from you and there are a few other ones in the blaine/coon rapids area. I love the extra power with e85
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12-01-2009
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#26
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*Resting In Peace*
Join Date: Aug 2009
Location: Heaven
Drives: 94 Plymouth Acclaim/2008 EvoX
Posts: 2,430
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Re: Pump & meth vs. E85
Shane will be converting me to E85 on Monday.
I originally planned to go with meth but after looking into it, I decided that I wasn't comfortable with the safety level (at least on the X since it doesn't have ECU map switching yet). If anything goes wrong then it's all up to your failsafes to keep you from losing the motor. E85 doesn't have that (rather large) caveat and it's a lot less complex.
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12-01-2009
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#27
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Join Date: Mar 2005
Location: Blaine, MN
Drives: '91 Automagic
Posts: 13,908
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Re: Pump & meth vs. E85
Well after driving home from OK (14hrs each way), I have decided that yes I will keep E85 when I get home, but just have a pump tune.
Esp. now that link has switchable maps (they have had it for a while, i just found out about 2 months ago)
thanks for the helpful words.
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12-01-2009
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#28
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Join Date: Mar 2009
Location: The shities
Drives: 95 TSi AWD POS
Posts: 132
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Re: Pump & meth vs. E85
I got to say thanks for posting that thread. I have been on the fence about what I should do with my car and its appearing that E85 is the way to go.
I am thinking when I get the Flash ecu for my talon this spring E85 is what its going to get set up for. Should be pretty sweet.
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Last edited by deadeye; 12-01-2009 at 04:54 PM..
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12-01-2009
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#29
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Join Date: Sep 2007
Location: Minnesota
Drives: DSM
Posts: 319
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Re: Pump & meth vs. E85
One obvious con of pump+meth: What if meth injection fail right in the middle of the pull? Just those split seconds of knock can be devastating.
E85 will never fail like that. If injectors get dirty/gummed up, it will be slow and gradually, you will feel the difference.
E85 is magical. It burns so much cooler. It is cheap, smells better than gas too I was able to get away with 23* of timing with 11.5-12.0 AFR's with stock SMIC, heatsoaking through the gears in 90*F day. NO KNOCK.
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12-01-2009
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#30
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Shit Rocket Pilot
Join Date: Oct 2003
Location: Shoreview, MN
Drives: 2003 Evolution VIII
Posts: 7,752
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Re: Pump & meth vs. E85
Quote:
Originally Posted by Fran05
One obvious con of pump+meth: What if meth injection fail right in the middle of the pull? Just those split seconds of knock can be devastating.
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With the proper setup the system is failsafe and fool proof. Scheides has his meth injection system dialed in to be as safe as possible aside from a severe malfunction.
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"If everything seems under control, you're just not going fast enough." -Mario Andretti
03 Mitsubishi Lancer Evolution VIII
Quote:
Originally Posted by Tachyon
Every minute you spend in your Evo, not in boost, is a minute of your life you'll never get back.
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12-01-2009
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#31
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Banned
Join Date: Aug 2009
Location: Suburbs
Drives: FS-T
Posts: 346
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Re: Pump & meth vs. E85
I keep it simple and stick to just BP 92, maybe someday if I go to something else it would be E85 because I only like to fill up one tank . Just sucks to have to worry about the change in the grade of the E85 through the seasons.
Last edited by Forced Fed; 12-01-2009 at 09:23 PM..
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03-02-2011
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#32
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Banned
Join Date: Feb 2011
Location: Minneapolis
Drives: 2g
Posts: 38
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Re: Pump & meth vs. E85
is there a write up on a meth injection for a DSM?
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03-03-2011
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#33
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flips McGee
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Re: Pump & meth vs. E85
Yea, pretty much any thread with Evo info is applicable to a dsm. Do some research and then start a thread with any questions you have.
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Quote:
Originally Posted by Murlo26
I need to listen to Scheides more often i think :)
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Originally Posted by turbotalon1g
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Originally Posted by JV
S2000: For those of us that know the Miata is the best car on the planet, but also want extra power and to not have to turn in our man cards.
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03-03-2011
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#34
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AznKraut
Join Date: Feb 2006
Location: Stillwater
Drives: '03 325i, '98 Ranger '03 Duramax
Posts: 1,374
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Re: Pump & meth vs. E85
Personally, I have never ran meth. But the idea of just filling up your tank with e85 sounds a lot better than having to fill up both your fuel and meth tank. And, like many others who have posted I am weary of the "what-if's" associated with meth injection. I think it all comes down to where and how you will be using the car. I can see both being viable options.
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