Turbo and E85
07-05-2011, 07:35 AM
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Turbo and E85
i'm working on installing a turbo into my Stock 2001 Integra. i just noticed the sticky about e85 and was wondering.... Should i tune on E85? what are the pros/cons of using it (besides price). What effects does using E85 have on the stock motor with no tune?
thanks
thanks
07-05-2011, 07:48 AM
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Re: Turbo and E85
true you can make great power off the corn, and you do need more fuel.
im currently on a aeromotive a1000/rc 1000 injectors, and this yeuilds me over 600hp.
i think this is a pretty moderate setup compared to others out there making the same power as i am, but others will aruge that point lol
also you wont get as good of mpg as you will with 91-93 octane, but your car will run alot cooler on the corn thats for sure and there is alot less chance of knock as well.
im currently on a aeromotive a1000/rc 1000 injectors, and this yeuilds me over 600hp.
i think this is a pretty moderate setup compared to others out there making the same power as i am, but others will aruge that point lol
also you wont get as good of mpg as you will with 91-93 octane, but your car will run alot cooler on the corn thats for sure and there is alot less chance of knock as well.
07-05-2011, 08:03 AM
#4
Re: Turbo and E85
Pros:
-Acts similar to VP race fuels of 110 octane because of the ethanol (basically alcohol) content is much more volatile than standard pump gas.
-It is less expensive than pump gas per fill up (but there's a catch).
-Yes, you can make more power due to knock resistance just like race fuel.
Cons:
-e85 is harder to burn. Thats why it is resistant to knock, and you need much larger injectors than standard gas. You add a ton of timing so the kernel starts sooner in the stroke and the burn takes longer. Ethanol releases 12000 btus per pound on ignition and gasoline releases about 20000 btus on ignition. So to burn at gasolines stoich of 14.7 you would need to add 30% more ethanol. Even at 1.3 lbs of ethanol you will release theoretically 16000 btus of energy. 4000 less than gasoline at stoich. So even though it is cheaper at the pump per gallon, you burn almost a 1/3 more quickly than even pump gas.. (meaning you go to the pump more often).
- Manufacturing inconsistencies. Because Ethanol is not fully regulated, you can get a bad batch when going from one group of E85 stations to another. For instance, you may have the same E85 supply truck going to 5 stations in its route, and as long as you stay within those 5, there should be no problem. Go to another county, municipality or state, you may get 80-82% ethanol instead of 85% ethanol or some other combination. Your car would now be running a bad batch of fuel.
-E85 is something to be used in the summer only. Because of the ethanol content, it tends to dry out fuel lines over time. Yes, the stock lines will hold for a nice while, and as long as you keep driving, fine. If you intend to store your car, or drive in the winter months, you need a gas drier and remember that during the winter months, they downgrade the amount of ethanol used, so again it can be inconsistent.
So again, if your goals are reasonable, you can use E85 to your advantage provided that you understand that its not something that should be used on a daily basis. As long as its used consistently like VP race fuel, there shouldn't be much problem. but now you know. In many cases, however, the use of it isn't even necessary if the goals are within reason. If not, and actual race fuel isn't an option, there's always meth/water injection as an alternative.
-Acts similar to VP race fuels of 110 octane because of the ethanol (basically alcohol) content is much more volatile than standard pump gas.
-It is less expensive than pump gas per fill up (but there's a catch).
-Yes, you can make more power due to knock resistance just like race fuel.
Cons:
-e85 is harder to burn. Thats why it is resistant to knock, and you need much larger injectors than standard gas. You add a ton of timing so the kernel starts sooner in the stroke and the burn takes longer. Ethanol releases 12000 btus per pound on ignition and gasoline releases about 20000 btus on ignition. So to burn at gasolines stoich of 14.7 you would need to add 30% more ethanol. Even at 1.3 lbs of ethanol you will release theoretically 16000 btus of energy. 4000 less than gasoline at stoich. So even though it is cheaper at the pump per gallon, you burn almost a 1/3 more quickly than even pump gas.. (meaning you go to the pump more often).
- Manufacturing inconsistencies. Because Ethanol is not fully regulated, you can get a bad batch when going from one group of E85 stations to another. For instance, you may have the same E85 supply truck going to 5 stations in its route, and as long as you stay within those 5, there should be no problem. Go to another county, municipality or state, you may get 80-82% ethanol instead of 85% ethanol or some other combination. Your car would now be running a bad batch of fuel.
-E85 is something to be used in the summer only. Because of the ethanol content, it tends to dry out fuel lines over time. Yes, the stock lines will hold for a nice while, and as long as you keep driving, fine. If you intend to store your car, or drive in the winter months, you need a gas drier and remember that during the winter months, they downgrade the amount of ethanol used, so again it can be inconsistent.
So again, if your goals are reasonable, you can use E85 to your advantage provided that you understand that its not something that should be used on a daily basis. As long as its used consistently like VP race fuel, there shouldn't be much problem. but now you know. In many cases, however, the use of it isn't even necessary if the goals are within reason. If not, and actual race fuel isn't an option, there's always meth/water injection as an alternative.
07-05-2011, 08:10 AM
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Re: Turbo and E85
first, thank you so much for the quick and extremely useful response.
I have a stock B18B, and at the moment i'm just looking for about 250-300HP after tune. i have DSM 450 injectors, and at this point ( so close to finishing) i wouldnt want to have to change them out. i was hoping it was more like, tune for E85 and go. So its not worth it, i'll just use some 93 and be done with it.
once again, thanks for the help.
I have a stock B18B, and at the moment i'm just looking for about 250-300HP after tune. i have DSM 450 injectors, and at this point ( so close to finishing) i wouldnt want to have to change them out. i was hoping it was more like, tune for E85 and go. So its not worth it, i'll just use some 93 and be done with it.
once again, thanks for the help.
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07-05-2011, 08:13 AM
#8
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07-05-2011, 08:13 AM
#9
Re: Turbo and E85
With 450cc injectors at that power level, you're fine. There is no reason to stress those any further and simply tune for 250whp using those. You'll need to change out once you get to that 300whp mark, even with an uprate in base fuel pressure. Its rather risky after that.
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