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ichibankilla wrote:
It's basically a proven fact that there is very little if any difference between 87,89,91 and 92 octane performance wise.in a stock car, probably not. but hell, even my nearly stock ass 94 Thunderbird will detonate if I run 87 - needless to say I don't run 87 anymore. (only thing different is it was dyno tuned)
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So what's the highest octane my 4 banger can run? It has the usual aftermarket stuff. Intake, header, exhaust, ignition. No internal work.
Sterling Archer: Oh my god! You killed a hooker!
Cyril Figgis: Call girl!
Sterling Archer: No Cyril! When they're dead they're just hookers!
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PSiedTSi wrote:
well when your running boost on an N/A motor im pretty sure regular gas is not an option!on a sidenote...sleepermaxima bradys in moorhead on 8th street has 100octane unleaded in the pump if you can run that...?
sonofa! I called that store and the lady that I talked to said that they only had leaded race fuel... nothing unleaded. This was a couple months ago and maybe things have changed over there since then. Oh well.
Thanks for the info.
Do you know how much they are charging for it? I can mix pump with the 104 at about 1:1 to give about 98 octane (which is perfect for that pig). The price for that is about 3.75 after I average the prices per gallon.
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Schwanger wrote:
E85 is actually 113 octane and $1.44/gallon. If you want to run E85 you need to use alcohol safe fuel line and retune for it being that you need to burn more of it.Interesting... BTW, Where are you getting this info? I've been meaning to research this but I have not found anything more than what I read from second-hand sources (like from forums like this). I would like to have a solid basis before I start retooling my setup.
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I've been doing a little research for the next NDSU formula SAE car. I think there is some information about it on the North Dakota Corn Growers Association website. But all you need is new fuel line (I think steel braided is alcohol resistant) and then a new fuel map and you're ready to go.
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ichibankilla wrote:
So what's the highest octane my 4 banger can run? It has the usual aftermarket stuff. Intake, header, exhaust, ignition. No internal work.it's not how high of octane you can run, it's how low. you're not going to see performance gains running 93 in a car that runs fine on 87 (or anything worth noticing) - so if it doesn't detonate, use it. too high of octane, I believe it won't burn it fully (It hink that was result), too low of octane will leave your motor in the street.
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dubbsy wrote:
it's not how high of octane you can run, it's how low. you're not going to see performance gains running 93 in a car that runs fine on 87 (or anything worth noticing) - so if it doesn't detonate, use it. too high of octane, I believe it won't burn it fully (It hink that was result), too low of octane will leave your motor in the street.While this is true, some race fuels are oxygenated and therefore can actually add slight power increases while still preventing detonation.
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so if I heard this right e-85 burns a little hotter, has higher octane, and all I'd have to do is retune my carb?
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You might have to rejet your carb. Definately wanna make sure your fuel lines/pump/anything else rubber or plastic in the fuel system are ready for E85 as well.
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i brought up this E85 idea way back last year...but i got shut down about it...now it's as if ppl wanna actually try to see what exactly needs to be done...i know that everything in the fuel system if not corrosion resistant needs to be replaced. you will need (i believe) bigger injectors for a fi'd car because e85 burns quicker then reg. gas so you will use more. i'm seriously looking into e85 for the slo when i swap the motor...i figure it'll already be all apart, and im getting a vafc, so why not just go that little extra step and pay up another 300ish so i can run 105+ octane for less than $1.60 a gallon...that makes sense to me, expecially in the long run...because the way i figure it, the difference in gas milage doesnt nearly outway the difference in cost and difference in performance one can get from the higher octane. my .02
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I drive a mustang, don't know if you were referring to me or not, Tsi. I get 14-16 mpg. With only larger injectors I can run it? What about the rubber hose around an inline fuel filter? What about the filter itself? Are they in danger of corrosion?
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ill check it out when im home again on the 10th ish
Originally Posted by 00vtec View Post
I take cash or check. True honda owners can hear it in anything no matter what the mods."Imo kick yo ass so hard that candy comes out"
hung like a butterfly but stings like a bee....
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you people all need to do a lot of research before you even think about putting e85 into your cars.
first- if you would google for "e85 blend," you would see that ethanol is about 113 octane and e85 is about 110. or i could save you the time:
http://www.hannity.com/forum/archive/index.php/t-14622.html <~~ find octane on the page
second - have you ever looked at drag cars that burn alcohol? how big are the injectors? 1000-2000cc/min is not uncommon, because alcohol has much less energy than gasoline.
third - kiss all the rubber and aluminum in your fuel system goodbye, because alcohol will eat it over time. it's recommended to not use more than 30% alcohol in normal gasoline engines, but you would need more gasoline (as opposed to less with higher octane gasoline).
fourth - because of it having less energy per unit, mileage would decrease relative to what percentage alcohol is in the system... so the final fuel cost to travel x miles would be almost the same. however, because of all the modifications necessary to run it safely... e85 would cost more with a normal car.
i've tried, it works, but not as well as 92 or 93 octane. don't use it.
and for the rest of you children spouting off about something that you don't know anything about... perhaps you should do a little research before spreading false facts?
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