Update on E85 testing and adding E98 to mine
#2757857
03/31/20 02:03 AM
03/31/20 02:03 AM
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Joined: Aug 2003
Posts: 43,719 Bend,OR USA
Cab_Burge
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I'm seeing a difference in the percentage of alcohol in the local pump E 85 I use to race with when testing it, it seems to gain alcolol when it has sat in the plastic jugs during the winter from 2 to 3 %, from 85 to 88% I bought some 98% ethanol medical alcohol and want to make all the race fuel the same by adding more ethanol to what I have. What are your thoughts on this and what do you think of making it 90% and will I need to jet up or down I haven't done much testing on the jetting on my carb. yet, shame on me The car does run very consistent with the E85 pump fuel no matter if I run the 85% or the 87% with no tuning changes .I will and do mix them in the 7.5 gallon fuel cell at the races while racing after using up each jug I'll add another post to the bottom on this
Last edited by Cab_Burge; 04/01/20 04:34 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: 1980volare]
#2758032
03/31/20 03:00 PM
03/31/20 03:00 PM
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Cab_Burge
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Last edited by Cab_Burge; 03/31/20 03:02 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: Cab_Burge]
#2758084
03/31/20 05:17 PM
03/31/20 05:17 PM
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Joined: May 2011
Posts: 625 Oakville, Wa
HOTMOPR
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mopar
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I just ran E98. Stuff runs clean! I got it from your neck of the woods. Thunderbolt race fuels
67 Barracuda, 470" B, Glide, FuelTech FT600, Precision, Ptc, QA1, Calvert, Smith racecraft, Afco, Dana 60. 275 radials
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: Cab_Burge]
#2758087
03/31/20 05:27 PM
03/31/20 05:27 PM
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440Jim
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I ran E85 from 2008 to 2012 when I switched to methanol (cost). IMO, a couple percent difference is not a big deal as long as you are rich, not lean. I used an oxygen sensor for tuning on my car, but took it out for normal racing. I would rather use 93 octane gasoline to bring down the 88% stuff to 85% and use 85% as your baseline. (or just leave it 88%). Now if you had 75%, I would add ethanol or E98 to bring it up to the baseline (85%).
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: 440Jim]
#2758092
03/31/20 05:43 PM
03/31/20 05:43 PM
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Cab_Burge
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I call Quick Fuel this morning with a few questions on using their E85 tester, how long to wait to see the percentage and ,of course, got one of there less experienced tech guy. He had to go ask another tech so I figure I would learn it well enough on my own for me to trust the results on the readings. I'm going to let it sit for at least 5 minutes between shaking the water and fuel together before reading the results. I had tested some last night and let it sit in the tester overnight, it changed from 85% to between 83 and 84% over night. It was a little cloudy last night and completely clear this morning I'm adding E98 to all my fuel jugs and have seen and increase from 87 to 90 % so far with letting the tester sit for 10 to 15 minutes between shaking it and reading it, one down and four more jugs to test I'm going to let the tester sit overnight again on the last test, more to come I read a little on one of the E85 forum I have bookmark on my favorites and didn't get much useful information from the little I looked at it,I'll look some more now
Last edited by Cab_Burge; 03/31/20 05:45 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: dodger mope]
#2758101
03/31/20 06:06 PM
03/31/20 06:06 PM
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HOTMOPR
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mopar
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90% of a e85 test is over in about 30 seconds and that should get you less than 5% of what it actually is.. This coming from a friend that's very well educated in ethanol fuels in drag racing..
67 Barracuda, 470" B, Glide, FuelTech FT600, Precision, Ptc, QA1, Calvert, Smith racecraft, Afco, Dana 60. 275 radials
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: HOTMOPR]
#2758127
03/31/20 07:29 PM
03/31/20 07:29 PM
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Cab_Burge
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90% of a e85 test is over in about 30 seconds and that should get you less than 5% of what it actually is.. This coming from a friend that's very well educated in ethanol fuels in drag racing.. that is what the tech at Quick fuel indicated after consulting with another tech in the office. I'm testing now after adding some additional E98 to each jug Mixed results so far, maybe I need help on the math on exactly how much E98 to add to raise it up to E90% E85 one gallon should have 19.2 ounces of gas and other non ethanol alcohol additives, correct? I'll add to this post later this evening when I'm done testing the mixes I used I may have to experiment several times to get all of the jugs to E90 Test, test and test some more to get the results needed to be sure of your results
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: E85 racers, do you make your fuel higher in alcohol?
[Re: HOTMOPR]
#2758133
03/31/20 07:41 PM
03/31/20 07:41 PM
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Joined: Oct 2008
Posts: 1,184 East Coast
A/MP
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For regular pump gas,10-15% ethanol, a tanker truck pulls up with no ethanol gasoline(regular,mid,premium) and they fill the tanker with the amount of ethanol to formulate the alcohol percentage. That can get iffy when you watch it happen. With e85 its the opposite. There are irregularities with modern gasoline in general. Works for ethanol too. While the ethanol transfer tank is 1/2,1/3,1/4 full and the weather changes you have variables. Before you fill your 5 gallon(empty pails), rinse the pail with premium unleaded or your chemical grade ethanol and swirl and shake it well. Your just trying to have the gasoline to absorb and moisture that may be in the container. Then dump it. Then pump your e85 and iron ball the cap. Check your O rings if applicable. Should try this also with your fuel cell and just run the tank dry. Many people do none of this and have no issues(its a mind set). Take this info and apply it to what makes you content. For what its worth, I've taken race gas directly from the drum at the race track and watch it fail the fuel check. Sunoco and VP, what????
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Re: Update on E85 testing and adding E98 to mine
[Re: Cab_Burge]
#2758513
04/01/20 05:32 PM
04/01/20 05:32 PM
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Joined: May 2012
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John Brown
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Some of the cheating circle track racers used to swear by amyl acetate when mixing alcohol and gasoline, but that was back in the dark ages. There may be better options out there now.
July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
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Re: Update on E85 testing and adding E98 to mine
[Re: Cab_Burge]
#2758546
04/01/20 06:36 PM
04/01/20 06:36 PM
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I added another 13 Oz of E98 along with 8 Oz of Acetone to one of my 5.5 gallon jugs that had tested to be right at 87% before adding this additional E98 and Acetone. I tested it again after adding the latest mixture 15 minutes ago, around 3:05PM our time, and it now tests to be 88% as of 3:20 PM local time I'm going to let that seal test vial sit overnight now and look at it again tomorrow morning, I'll post what it reads after that I've added around 2 gallons of E98 to these 5 jugs( approx. 5.5 gallons in each jug) so far up to through this afternoon, I didn't think to keep tract of how many ounces to each jug and write down what it tested to be before adding E98 to them, sorry for not thinking far ahead enough to help being more accurate on this testing
Last edited by Cab_Burge; 04/01/20 06:38 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Update on E85 testing and adding E98 to mine
[Re: A/MP]
#2758680
04/02/20 12:10 AM
04/02/20 12:10 AM
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Cab_Burge
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I'm under the impression that most type of alcohol will suck moisture out of the air if in a breathable container, yes or no? The test tube now, after adding the E98, seems to have a very thin(.030 to maybe .075 thick) layer of some funny looking liquid at the very top, looks greasy almost EDITED: I remembered using Lucas E 85 stabilizer in several of the full jugs earlier in the spring of 2019, I wonder if that is the funny looking stuff on top of some of the fuel samples now I think I will add some more of that to all of the jugs and then retest all of them once more
Last edited by Cab_Burge; 04/02/20 02:02 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Update on E85 testing and adding E98 to mine
[Re: Cab_Burge]
#2758890
04/02/20 01:32 PM
04/02/20 01:32 PM
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Thumperdart
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A customer of mine just killed his motor running the E-98 and from what most pro's say, 85-87 is better and has more "gas" to start the burn better/faster.....
Last edited by Thumperdart; 04/02/20 01:32 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Update on E85 testing and adding E98 to mine
[Re: Thumperdart]
#2759066
04/02/20 06:49 PM
04/02/20 06:49 PM
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Cab_Burge
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Last update, the sample I tested last night showed between 87 and 88 % after shaking it a bunch and then letting it sit for around 10 minutes in the Quick Fuel test tube, this morning it reads 85 % I am going to add some of the Lucas E85 stabilizer to all my jugs and not worry about raising the Ethanol content to the local pump E 85 I buy and race with from now on as long as it test from 84 to 87 % from the pump I'll use all the fuel I have on hand first that I added E98 to and hope it burns okay in my motor, it does have right at 15.0 to 1 compression and didn't get hurt last year racing it with the pump E85 that had set all winter in some of the same jugs that tested to be from 86 to 88 % last spring I keep every run with the weather information from my Performaire weather station in my racer log so I should be able to compare last years runs with this years runs with similar weather and air density
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Update on E85 testing and adding E98 to mine
[Re: Cab_Burge]
#2759073
04/02/20 07:06 PM
04/02/20 07:06 PM
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Joined: Jan 2003
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440Jim
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I'm going to let that seal test vial sit overnight now and look at it again tomorrow morning, Cab, were the test tubes sealed/plugged during every overnight test? Just trying to figure out the various results.
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Re: Update on E85 testing and adding E98 to mine
[Re: 440Jim]
#2759087
04/02/20 07:34 PM
04/02/20 07:34 PM
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Cab_Burge
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I use the Quick Fuel tester kit which uses water and E85 mix together in a glass vial with a screw on hard plastic lid, the lid was on tight for every test. I shake each test batch up a lot which makes the mix turn milky looking and no visual separation for several minutes, hence me calling Quick Fuel to see if there was a minimum time to let it sit before reading the results. I'm going to let all my future tests sit at least 5 minute before reading the results due to not seeing a noticeable difference between sitting 2 to 5 minutes compare to sitting from 5 to 10 minutes All the testing I've done this week remained milky for over 20 minutes but would clear up over night and read differently after sitting that long This last batch of mixing has me really concern on what I'm doing wrong on the mixing What I have notice when adding the additional E98 to the pump E85 I bought this year is the .030 to .060 thick milky looking stuff on the top of the mixture now I have not seen that until this year, I think the Lucas E85 stabilizer may be causing that I had notice before using the stabilizer that the fuel sitting in the jugs in the car trailer park outside for the winter would change from E85 to E86+ up to E88%, not so this year with the stabilizer in those jugs Now all the fuel is testing to be 85% after sitting over night in the test vial, I am going to retest all five jugs again over night they way they are now before adding any more stabilizer to them to make sure of how they read now before adding any more Lucas stabilzer to all of them for this year. I'll mark each jug again so I can keep track of the over night test results I'll post those results next week
Last edited by Cab_Burge; 04/02/20 11:19 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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