Premium gas prices
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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? -
Out There, a lot of what you said is completely true. Somehow people have the micsonception that you can just run E85 on any old motor.... NOT even close to true.
If one were to build a motor to run off of E85 specifically (somewhere in the neighborhood of 13 or 14:1 compression, tuned accordingly with a standalone) you could get some serious HP and not too shabby mileage out of it.
Now, Ive been looking into it just from a fun standpoint. Considering building a high compression(11:1) low boost(7 or 8psi) combo. I think you could have a lot of fun with that. Another bad idea would be to make an overly complicated turbo header with a jake brake type SWING valve to switch between routing the exhaust to the turbo (E85), or just straight to the exhaust (gasoline) and running it on MegaSquirt & Spark Extra with 2 different VE tables and just switch them depending on whats in my tank or if Im at the track or not.
McAdam
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out there wrote:
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?me personally, id build a motor/fuel system that would be able to handle e85...also, i think 1000hp with 1000-2000cc of fuel isnt bad...remember, drag cars are designed to eat up fuel and make 1000hp/cyl on average...trust me, ive been researching this idea for months, so im not a total idiot on the subject...
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It cost $2.94 here for Premo.
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