e85 for FI
Melting Slicks
Joined: Dec 2002
Posts: 3,296
Likes: 30
From: Friendswood, Tx
I'm probably missing something here, but why not just install a $500 meth kit, have the car dialed in on a dyno and be done with it? It'll offer the same advantages and there's no "maintenance" needed with it other than filling the tank every 3-4 weeks. Changing the entire fuel system for the same/similar desired results seems to be overkill.
Again, I'm not familir with E85 so maybe there's other advantages that it offers that meth doesn't??
Again, I'm not familir with E85 so maybe there's other advantages that it offers that meth doesn't??
Guest
Posts: n/a
Mr. Big, do you know what changed king of changes they made.
Vettalot, I have not read any information about ethanol being corrosive to the parts in modern vehicals. Methanol is an entirely different storry, however you bring up good points that need further investigarion with regards to the knock sensor, o2 sensors, bare aluminum parts in the fuel pump. I cannot imagine there being a risk of arcing of parts inside the take as gasoline would be more of a risk than ethanol, but will consult a fuel system expert, i.e., Racetronix. Our tanks are already made of plastic, but I will look into the type to ensure there is compatibility with ethanol.
Busa, I really don't want to add / rely / maintain an additional system. Ethanol will provide much lower AIT's and near elimination of detonation. The meth injection is still a very small percentage when sprayed (<1%), where e85 is 85% ethanol.
Keep in mind, my information is still based on reading and by no means expert / first had opinion, so please keep the input coming.
Vettalot, I have not read any information about ethanol being corrosive to the parts in modern vehicals. Methanol is an entirely different storry, however you bring up good points that need further investigarion with regards to the knock sensor, o2 sensors, bare aluminum parts in the fuel pump. I cannot imagine there being a risk of arcing of parts inside the take as gasoline would be more of a risk than ethanol, but will consult a fuel system expert, i.e., Racetronix. Our tanks are already made of plastic, but I will look into the type to ensure there is compatibility with ethanol.
Busa, I really don't want to add / rely / maintain an additional system. Ethanol will provide much lower AIT's and near elimination of detonation. The meth injection is still a very small percentage when sprayed (<1%), where e85 is 85% ethanol.
Keep in mind, my information is still based on reading and by no means expert / first had opinion, so please keep the input coming.
Burning Brakes
Joined: Mar 2006
Posts: 790
Likes: 63
From: Ft Worth TX
Melting Slicks
Joined: Oct 2000
Posts: 2,235
Likes: 65
From: Herndon VA
We're doing it on my wife's Procharged GTO. Big power increase over 93 for sure! We did up the boost 1 psi, but the only other thing we added was E85 and some tuning and made 70+rwhp more.
Safety Car
Joined: Jan 2006
Posts: 3,598
Likes: 0
From: indianapolis indiana
i went to a party last night and spoke with a guy that works for irl....they converted to e85 a couple years ago and seen a 30%increase in fuel econ. i actualy was asking about the pace car this year that is a zo6 running e85. his comment was that flex fuel cars and trucks see lower mpg becausue they are tuned to run both e85 and gasoline. he says if you just tune for the e85 and run it only that fuel mileage should not drop much at all. soi am doing lots of research as it seems like my new motor is a very good canidate...1000 hp on moonshine lol
Last edited by excessive81; Feb 24, 2008 at 11:45 AM.
Melting Slicks
Joined: Nov 2005
Posts: 2,345
Likes: 2
From: Houston 06 C6 Ysi SC 402 fgd TX
Mr. Big, do you know what changed king of changes they made.
Vettalot, I have not read any information about ethanol being corrosive to the parts in modern vehicals. Methanol is an entirely different storry, however you bring up good points that need further investigarion with regards to the knock sensor, o2 sensors, bare aluminum parts in the fuel pump. I cannot imagine there being a risk of arcing of parts inside the take as gasoline would be more of a risk than ethanol, but will consult a fuel system expert, i.e., Racetronix. Our tanks are already made of plastic, but I will look into the type to ensure there is compatibility with ethanol.
Busa, I really don't want to add / rely / maintain an additional system. Ethanol will provide much lower AIT's and near elimination of detonation. The meth injection is still a very small percentage when sprayed (<1%), where e85 is 85% ethanol.
Keep in mind, my information is still based on reading and by no means expert / first had opinion, so please keep the input coming.
Vettalot, I have not read any information about ethanol being corrosive to the parts in modern vehicals. Methanol is an entirely different storry, however you bring up good points that need further investigarion with regards to the knock sensor, o2 sensors, bare aluminum parts in the fuel pump. I cannot imagine there being a risk of arcing of parts inside the take as gasoline would be more of a risk than ethanol, but will consult a fuel system expert, i.e., Racetronix. Our tanks are already made of plastic, but I will look into the type to ensure there is compatibility with ethanol.
Busa, I really don't want to add / rely / maintain an additional system. Ethanol will provide much lower AIT's and near elimination of detonation. The meth injection is still a very small percentage when sprayed (<1%), where e85 is 85% ethanol.
Keep in mind, my information is still based on reading and by no means expert / first had opinion, so please keep the input coming.
: I just cut and pasted, I have deleted the quote from my post, and retained the link. The LS1 link from the user in Sweden is much more informative.
Melting Slicks
Joined: Oct 2000
Posts: 2,235
Likes: 65
From: Herndon VA
i went to a party last night and spoke with a guy that works for irl....they converted to e85 a couple years ago and seen a 30%increase in fuel econ. i actualy was asking about the pace car this year that is a zo6 running e85. his comment was that flex fuel cars and trucks see lower mpg becausue they are tuned to run both e85 and gasoline. he says if you just tune for the e85 and run it only that fuel mileage should not drop much at all. soi am doing lots of research as it seems like my new motor is a very good canidate...1000 hp on moonshine lol
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wife car with 1000 hp...how cool is that
Former Vendor
Joined: Jan 2007
Posts: 155
Likes: 0
From: Columbia City IN
The biggest thing on e85 for a higher hp car, is fuel consistency. When purchasing the e85, you may or may not get the same blend, same as 93 pump. There IS going to be variance, how much, well it has a TON of factors.
There is also another good point made over on ls1tech. It is a good idea to speak with a knowledgeable engine builder that builds cars for e85, more so alcohol. They are setup very different then a gasoline motor, there will be some similarities and various differences.
I can see from a financial point why people want to switch, but risking a motor to save a few bucks is beyond me. If there was a guarantee that the fuel you purchased was in fact the same blend (e85) you tuned on, then thats great. But with the amount of cylinder pressure at 900+ rwhp there is not much if any margin for error. This is why race fuel is as much as it is, if you buy C16(116 octane), you will get 116 octane.
Vp does not let the fuel set at the bottom of a huge tank with sediment for a while until it sells off.
There is also another good point made over on ls1tech. It is a good idea to speak with a knowledgeable engine builder that builds cars for e85, more so alcohol. They are setup very different then a gasoline motor, there will be some similarities and various differences.
I can see from a financial point why people want to switch, but risking a motor to save a few bucks is beyond me. If there was a guarantee that the fuel you purchased was in fact the same blend (e85) you tuned on, then thats great. But with the amount of cylinder pressure at 900+ rwhp there is not much if any margin for error. This is why race fuel is as much as it is, if you buy C16(116 octane), you will get 116 octane.
Vp does not let the fuel set at the bottom of a huge tank with sediment for a while until it sells off.
Melting Slicks
Joined: Jun 2002
Posts: 3,060
Likes: 3
From: Dublin CA
IATs are measured before the throttle body, well before the injectors. It helps to inject both before the blower and after the intercooler, before the throttle body.
Last edited by blu00rdstr; Feb 27, 2008 at 01:10 AM.
