Will the ISF run well with a blend of e85?
10-25-16, 08:51 AM
#76
I use an E85 calculator that takes into effect the 10% ethanol on the pump gas and spits out the blended octane. But like I said earlier your ratio will vary by possibly up to 5% based on blends and what's in the pump gas to begin with and the E85, which can be as low as E70 or up to E85, so it's not an exact science but the variability won't hurt anything between 30-35% which is where I've been with my F.
10-25-16, 09:05 AM
#78
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10-25-16, 09:45 AM
#79
I'm not a chemistry expert, but the fuel cap says NOT to run E15-E85 fuel in this car. I'm sure the manual states that somewhere as well.
I would rather mix some race gas with 93 and call it a day.
I would rather mix some race gas with 93 and call it a day.
10-25-16, 11:03 AM
#81
Pole Position
Your correct the manual states that for a lot of cars about not running above E10 or E15, but the research I've done along with many other people all over the world is that running E85 in a non-flex fuel vehicle won't damage anything.
If anything you'll need a bigger fuel delivery system if you want to run E85 100% (no blending with pump gas), but other than that nothing that I've seen has attributed E85 as damaging any modern vehicle after about 1991 or so IIRC?
Don't fall into the trap of believing the hype big oil has put out there as scare tactics against the ethanol industry, they don't want any competition at the pumps where people would have a choice on what type of fuel to put in their vehicle, so they will run a smear campaign to obtain total dominance/monopoly on the fueling standard for the combustion engine.
By the way we're only blending at 30% or so and everything from datalogs to my mpg has given me confidence that E85 is a great alternative to race gas at a fraction of the cost (here it's $1.69 gal) to raise KCLV numbers and advance timing so the tune (at least at altitude) can advance timing the way it was programmed to without the restriction (knock/retardation of timing) of pump 91 for many of us in the country.
10-25-16, 02:20 PM
#84
Pole Position
Your right it is kind of a bandaid, especially for us at altitude. Thank goodness this works for us! I'm assuming maybe the tune could be dialed in more for specific altitudes/geographic areas to be truly custom tuned, but then you'd need Rafi/Steve to fly out and do custom tunes on location at a dyno which I don't think is feasible at the moment?
10-25-16, 02:32 PM
#85
Oh I just noticed where you lived. Guess that makes sense then.
For me. I look at it as if I'm getting a tune it should be dialed to what I can source at the pump with no risk of throwing off my knock correction unless there's ACTUALLY a problem. Whereas right now I feel the system is too over protective.
For me. I look at it as if I'm getting a tune it should be dialed to what I can source at the pump with no risk of throwing off my knock correction unless there's ACTUALLY a problem. Whereas right now I feel the system is too over protective.
10-25-16, 02:42 PM
#86
Pole Position
Agree with you on the fact that our cars do seem like they are very sensitive to anything remotely resembling knock including your passenger ripping one lol!
It goes to show that when someone is having issues with a cracked manifold that the clanging around is enough to replicate knock to the sensors and pull timing? Crazy!
It goes to show that when someone is having issues with a cracked manifold that the clanging around is enough to replicate knock to the sensors and pull timing? Crazy!
10-25-16, 07:31 PM
#88
Pole Position
He did revise it and is called the "High Altitude Tune" and was a lot better than the standard "sea level/general tune"
I'll let others here who had that tune chime in as I never had that particular tune and started with the tuned intake/header/exhaust FBO tune
I'll let others here who had that tune chime in as I never had that particular tune and started with the tuned intake/header/exhaust FBO tune
10-25-16, 07:52 PM
#89
Driver School Candidate
I filled 3 gallons of e85 today in Houston! I have the RR tune already, and after filling up I didn't feel any difference. I guess that's a good thing haha, I do not datalog but I'm sure it helped my KCLV. I will continue to do this though, I love the smell of corn
10-25-16, 08:00 PM
#90
I ran the high altitude tune for quite some time, the tune wasnt nearly aggressive for obvious reasons... but pulled hard on the upper end. Rafi and I have tried multiple tunes to test and log at altitude. RR really went above and beyond with trying to optimize the tune for us. The high altitude tune did well but after i had started blending e30 I loaded up the original tune and have had quite the positive outcome. Gained torque on my low-high end again. So far the e30 has been a game changer for us in the thin air. Quite honestly dont think it is nessisary at sea level but could only imagine it would only help with further advancing the timing. I'm curious to see the review on those who have just blended in the past few days in other regions and see what they think.