Is there a product that will raise the octane of Pump E85? I am going to tune for racing E85 (true 85% ethanol @ 112 octane) and want to be able to run pump fuel. Which, correct me if I'm wrong, is not always a true 85% blend.
Is there a product that will raise the octane of Pump E85? I am going to tune for racing E85 (true 85% ethanol @ 112 octane) and want to be able to run pump fuel. Which, correct me if I'm wrong, is not always a true 85% blend.
Is there a product that will raise the octane of Pump E85? I am going to tune for racing E85 (true 85% ethanol @ 112 octane) and want to be able to run pump fuel. Which, correct me if I'm wrong, is not always a true 85% blend.
no reason to really test it unless you're just ultra paranoid...e90 to e70 is only about a 1/2 point AFR richer. wont hurt anything.
I am an Engineer and there for ultra paranoid. Must have data, it is a sickness. Plus I derive some sick pleasure in knowing the exact ratio, ever though I won't affect anything. Just makes me feel better.
Thanks guys. I will order a test kit and do some sampling around Houston. New to E85 and always just thought it was "Hippie Gas". Then I lived in a place that sells it and learned all the benefits. Any more advice would be welcome.
Agreed! From what I understand, your cylinder temps will already be much lower because your burning ethanol (alcohol) instead of crappy gas. The octane is basically an extra bonus. You can run a lot more timing and make a lot more power safely on nothing but E85 out of the pump!
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I test mine every fill up and keep the sample with me as long as that fuel is in the tank lol. It takes all of two minutes before each fill up and sets my mind at ease about what im running.
:beer:
Absolutely. No sense being lazy and guessing what you just did 2 minutes after leaving a station. I have already been burned and tested an E85 pump in Houston at E45....rich codes went off half a mile down the road and that crap had to be drained. It's going to be fine and very close to E85 99% of the time, especially in Texas. But it's that 1 chance it won't be fine that makes me test it every time.
Knuckleheads are every where...and if a fuel delivery truck drops E10 gasoline by mistake into the E85 tank below, you can get burned. That's what happened when I tested E45 and the store bagged those E85 pumps and took them offline. The only way I would forget about testing is if you have incorporated a flex fuel sensor and a PCM capable of making adjustments.
your CEL or an A/F gauge make checking fairly easy without having to use a test tube.
I rolled CEL in the Lightning and only had an issue once in a year. It was off 15%. Throws a CEL when over 10% out of commanded. Didnt hurt a single thing.
your CEL or an A/F gauge make checking fairly easy without having to use a test tube.
I rolled CEL in the Lightning and only had an issue once in a year. It was off 15%. Throws a CEL when over 10% out of commanded. Didnt hurt a single thing.
We're going to just have to agree to disagree here, what you're suggesting is after the fact and the fuel is already in the tank. I'm not comfortable running E45 for an entire tank and throwing rich codes. I'll invest the 2 minutes to test it before pumping to get a good, solid reading.
I do agree in an emergency situation, it will run. But it's not scenario case A to me and I would either drive down the road to the next E85 pump or take my handheld and drop the E10 tune back in, fill up with 93.
I have to disagree also, the problem with your reasoning is that once you find out its too late... you just filled the tank up with whatever is causing your problem. As I said it just takes two minutes before you squeeze the handle to fill your tank and if its not what you want hang the pump back up and leave to another station.
ran e85 in my lightning for over a year and never tested it once. it was tuned on summer e85, so in the winter it just ran 1/2 point richer or so. even if you got some weird e45 tank, it would only be about a point richer...not enough to damage anything.
I didnt say you would make optimum power still...I said you'll run rich but it most likely isnt going to hurt anything.
same thing happens with all fuels out of a pump...they can be off. this is how people detonate on 93 pump gas and mess up motors.
ran e85 in my lightning for over a year and never tested it once. it was tuned on summer e85, so in the winter it just ran 1/2 point richer or so. even if you got some weird e45 tank, it would only be about a point richer...not enough to damage anything.