e85 on j32a2
e85 on j32a2
so uh, i know there aren't a lot of you guys that are boosted, but for those that are, anyone running e85? i understand that i'd need bigger injectors and possibly a better fuel pump, but this would be an upgrade for next summer. i'm sure running on AEM EMS wouldn't be hard to e85 tune either.
why would you want to do something stupid like that? the price of the fuel might be cheaper but you'll use more of it. Yes you'll have to remap the ECU or get an aftermarket unit but why waiste the money and have the headacke of programing it with no added performance?
.... dude look up the octane ratings of e85 and the equivalent of gas. thats why. not to mention the added performance. if you put 93 octane u get 265hp if u got a type-s. if u use q16 or sumthin else pretty dank you get alot more than 265 on a decent tune.
stupid? yes i understand i'd use more. it'd probably even cost more than filling with premium, however i don't see your basis of "no added performance" plus, i'm not running stock ecu, so it shouldn't be hard to tune the fuel change.
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I dunno if it'd be worth it. Doesn't ethanol have less energy per gallon or sometghing? Basically less power from ethanol than from gasoline, so you'd get worse fuel economy and power.
Me? I'ma get as much of my pure gasoline as I can, because pure gas will be pretty much nonexistent about ten years from now.
Me? I'ma get as much of my pure gasoline as I can, because pure gas will be pretty much nonexistent about ten years from now.

Do some research before you post ever again
I've never used it before. Have you looked into running anything like alc/meth injection??? I was running alcohol injection with just premium fuel, 12 psi, stock timing(think I might have added a little, been a while), stock internals without a problem for two drag seasons
i say run e85 alot of people are running it in the evo, sti, vw, and honda scene. your gonna need to change your fuel pump. i dont think a wahbro 255 alone would be enough gas. also you are gonna need way bigger injectors. my friends setup is walbro 255 and another inline fuel pump with 1200cc injectors + he re did the lines because the corn eats them up he said. went to his dyno he made 554whp (said car was not a tl it is a 4cyl)
i say run e85 alot of people are running it in the evo, sti, vw, and honda scene. your gonna need to change your fuel pump. i dont think a wahbro 255 alone would be enough gas. also you are gonna need way bigger injectors. my friends setup is walbro 255 and another inline fuel pump with 1200cc injectors + he re did the lines because the corn eats them up he said. went to his dyno he made 554whp (said car was not a tl it is a 4cyl)
The car and its lines werent designed to run it. Some of the internal seals on the motor may not be able to handle it . Also unless you plan on getting crazy with the boost i dont really see a need to go thru the hassle for it. If you plan on going that crazy with boost your internals will need to be strengthened.
MAYBE YOUR USING THE WRONG FUEL THEN, as ethanol e85 is nothing like methanol racing fuel. then throw in the fact that per volume e85 doesn't have the punch of regular old gasoline, thus the larger injectors and fuel pumps, waiste o money and time but the kids have all this all ready figured out NOT.
Pretty much. E85 has less energy to it, to help overcome that you have to increase the boost to make more power. What it does have is a higher octane rating which is where the high boost engines are benefiting from it and its ability to resist knock. But like said above boost has to be turned up to overcome its lower energy (all from my understanding and those that have run it that i know)
I dont think it will ONLY benefit high boost (depending on what is considered high boost), but it is probably more practical if you really ARE pushing high numbers and boost, as it really helps prevent detonation. If you have a good tune, 93 should sufficient. Especially a lot easier pushing more power out from 6 cylinders than 4.
When i still had my 240sx, i mixed 100 octane with CA 91 gas when i was pushing anywhere from 15-19(highest i boosted, on a gt2871r) to be on the safe side. Not necessarily needed if you have a good tune. Thats what really matters.
When i still had my 240sx, i mixed 100 octane with CA 91 gas when i was pushing anywhere from 15-19(highest i boosted, on a gt2871r) to be on the safe side. Not necessarily needed if you have a good tune. Thats what really matters.
vid of my old 240: http://www.youtube.com/watch?v=6xTpFelNwvk
video of his sc300: http://www.youtube.com/watch?v=MvPbByDcFM8
The car and its lines werent designed to run it. Some of the internal seals on the motor may not be able to handle it . Also unless you plan on getting crazy with the boost i dont really see a need to go thru the hassle for it. If you plan on going that crazy with boost your internals will need to be strengthened.
I dont think it will ONLY benefit high boost (depending on what is considered high boost), but it is probably more practical if you really ARE pushing high numbers and boost, as it really helps prevent detonation. If you have a good tune, 93 should sufficient. Especially a lot easier pushing more power out from 6 cylinders than 4.
When i still had my 240sx, i mixed 100 octane with CA 91 gas when i was pushing anywhere from 15-19(highest i boosted, on a gt2871r) to be on the safe side. Not necessarily needed if you have a good tune. Thats what really matters.
When i still had my 240sx, i mixed 100 octane with CA 91 gas when i was pushing anywhere from 15-19(highest i boosted, on a gt2871r) to be on the safe side. Not necessarily needed if you have a good tune. Thats what really matters.
Turbo does fall off at the top end but it was one of the bigger T2's. It spools up really fast and hits really hard. I had a short(er) ratio tranny so anything bigger would not really have been useful.
Tuned with power fc.
Tuned with power fc.
not sure the size of the s2k injectors, i'd probably say 300cc at least. dunno.
yeah, i figured with compression at 10.5:1 would be too high for me to push past what i'm at right now anyway.
i'll stick with 93 then
yeah, i figured with compression at 10.5:1 would be too high for me to push past what i'm at right now anyway.
i'll stick with 93 then
i have another friend who has a gt30 which is a little bigger than the gt28 and i find the turbo doesnt make boost as hard around 7 or 8k. my friends b13 se-r was tuned using a jim wolf computer. what motor was in the 240 ?
you can feel/see the turbo not being able to boost as much on the high end on the smaller turbos. ran a s13 sr20
MAYBE YOUR USING THE WRONG FUEL THEN, as ethanol e85 is nothing like methanol racing fuel. then throw in the fact that per volume e85 doesn't have the punch of regular old gasoline, thus the larger injectors and fuel pumps, waiste o money and time but the kids have all this all ready figured out NOT.
rcb2000 is actually more correct than you are. E85 is nothing like race gas. Its almost like regular 87 octane just that e85 burns cooler (i believe), hence a tune is needed unless you run a very small amount mixed with gasoline.
If you plan on running high boost all the time, then yes, going e85 with a new map would be nice, but i would just sticking with 100 octane or higher whenever you feel like the need for it. Back when i had my 240, 100 octane was like $7.89 per gallon (only available in one gas station aprox 20 mins) and i would only fill up when i plan on really boosting and pushing the car. A good tune and dyno can really reduce knock on just 91 or 93 octane.
If you plan on running high boost all the time, then yes, going e85 with a new map would be nice, but i would just sticking with 100 octane or higher whenever you feel like the need for it. Back when i had my 240, 100 octane was like $7.89 per gallon (only available in one gas station aprox 20 mins) and i would only fill up when i plan on really boosting and pushing the car. A good tune and dyno can really reduce knock on just 91 or 93 octane.
Last edited by bl3ujay07; Nov 21, 2010 at 09:13 PM.
Me mad why? because some punk ass kidd doesn't know what the hell he's talking about, guess you don't have a NHRA SEASON CHAMPION wally to look at on the shelf of your garage either? like some of use do now do you Dumb Ass?
rcb2000 is actually more correct than you are. E85 is nothing like race gas. Its almost like regular 87 octane just that e85 burns cooler (i believe), hence a tune is needed unless you run a very small amount mixed with gasoline.
If you plan on running high boost all the time, then yes, going e85 with a new map would be nice, but i would just sticking with 100 octane or higher whenever you feel like the need for it. Back when i had my 240, 100 octane was like $7.89 per gallon (only available in one gas station aprox 20 mins) and i would only fill up when i plan on really boosting and pushing the car. A good tune and dyno can really reduce knock on just 91 or 93 octane.
If you plan on running high boost all the time, then yes, going e85 with a new map would be nice, but i would just sticking with 100 octane or higher whenever you feel like the need for it. Back when i had my 240, 100 octane was like $7.89 per gallon (only available in one gas station aprox 20 mins) and i would only fill up when i plan on really boosting and pushing the car. A good tune and dyno can really reduce knock on just 91 or 93 octane.
E85, is a motor fuel blend of 85 percent ethanol and 15 percent gasoline to be used in flex-fuel vehicles. Ethanol is alcohol used in transportation fuels. It is a high-octane, liquid fuel, produced by the fermentation of plant sugars. In the United States, ethanol is typically produced from corn and other grain products, although in the future it may be economically produced from other biomass resources.
Benefits:
It has a motor octane rating of 104-108, it is also quite cold to the touch. It drops air intake temps dramatically, which is GREAT with boost. It is currently about 2.05 per gallon, while 93 Octane is approximately 3.10 a gallon. E85 is cleaner burning, emitting a lot less greenhouse gasses. It is also a renewable resource. To top it off it is made 100% within the confines of the USA.
Cons:
It takes more of this fuel to create the same energy as regular gasoline. Therefore your car will use more fuel and you will see a decrease of approximately 10-15% in fuel economy. To make big horsepower you will need more fuel pump, bigger lines and more injector, or a modified carb and larger jets. Many people state that the fuel is corrosive and it could have adverse effects on aluminum fuel rails, injector o-rings and fuel lines.
Benefits:
It has a motor octane rating of 104-108, it is also quite cold to the touch. It drops air intake temps dramatically, which is GREAT with boost. It is currently about 2.05 per gallon, while 93 Octane is approximately 3.10 a gallon. E85 is cleaner burning, emitting a lot less greenhouse gasses. It is also a renewable resource. To top it off it is made 100% within the confines of the USA.
Cons:
It takes more of this fuel to create the same energy as regular gasoline. Therefore your car will use more fuel and you will see a decrease of approximately 10-15% in fuel economy. To make big horsepower you will need more fuel pump, bigger lines and more injector, or a modified carb and larger jets. Many people state that the fuel is corrosive and it could have adverse effects on aluminum fuel rails, injector o-rings and fuel lines.








