[rborane]

I'm looking to running the Cobb E30 map. How many gallons would you guys mix with ACN91, to achieve a proper mixture to run the e30 map safely?

[335twins]

try this site:

http://www.intercepteft.com/calc.html

it looks like you need about 4 gallons of e85 and 10 gallons of 91..

I am running PTF custom tune for e48 which is nice cause its half and half (e85 and 91) so i put 7gallons of e85 and 7 gallons of 91..easy mix

[924er]

Originally Posted by 335twins

try this site:

http://www.intercepteft.com/calc.html

it looks like you need about 4 gallons of e85 and 10 gallons of 91..

I am running PTF custom tune for e48 which is nice cause its half and half (e85 and 91) so i put 7gallons of e85 and 7 gallons of 91..easy mix

Do you have an upgraded fuel pump to run e85. I put 2 gallons of e85 in my 91 octane tank running stage 1 sport. I should get a tune

[335twins]

Originally Posted by 924er

Do you have an upgraded fuel pump to run e85. I put 2 gallons of e85 in my 91 octane tank running stage 1 sport. I should get a tune

nope, i have a stock fuel pump.

[924er]

Originally Posted by 335twins

nope, i have a stock fuel pump.

I hear over 40% u need an upgraded fuel pump how long have u been doing it? I'm still new to e85 it's my second tank. Logs look ok

[335twins]

Originally Posted by 924er

I hear over 40% u need an upgraded fuel pump how long have u been doing it? I'm still new to e85 it's my second tank. Logs look ok

I been running it for a month now, logs look good, PTF tuned it and said everything looks good. The car is running great, pulls like a freight train when i get on it... My HPFP was replaced under the warranty about 2 years ago..

[924er]

Originally Posted by 335twins

I been running it for a month now, logs look good, PTF tuned it and said everything looks good. The car is running great, pulls like a freight train when i get on it... My HPFP was replaced under the warranty about 2 years ago..

is it worth getting an e85 tune and only having access to one gas station like myself? i wanna get a PTF tune I'm debating 91octane or some e85 mix. there is only one e85 station by its not too far from my house and I don't know how well this car is going to last long term with e85 so I'm sticking with 20% for now.

[kctim]

Originally Posted by 924er

is it worth getting an e85 tune and only having access to one gas station like myself? i wanna get a PTF tune I'm debating 91octane or some e85 mix. there is only one e85 station by its not too far from my house and I don't know how well this car is going to last long term with e85 so I'm sticking with 20% for now.

One station with e85 is all you need. If it's far away, just store a reserve of e85 in your garage.

Running 2 gal of e85 on your sport tune is doing nothing more than cleaning up some timing corrections, if you have any.

A PTF tune will transform your car, pump or e85. Once you go e85, it's hard to go back to pump, car just runs so much better in every regard. If you're worried about the health of your lpfp/hpfp, just stick to a E25-E30 map. If it's having issues at that low of a blend, then it wasn't in great health to begin with.

[chepy24]

Don't we have a 16 gal tank??

[uberbeast21]

Originally Posted by chepy24

Don't we have a 16 gal tank??

yea im pretty sure we do im not sure what these other guys are thinking haha

[chepy24]

Originally Posted by uberbeast21

yea im pretty sure we do im not sure what these other guys are thinking haha

lol ok i was thinking im pretty sure i fill up with more...maybe they dont run the tank that low... but that would obviously throw off the oct if they dont account for whats in there

[924er]

Originally Posted by chepy24

lol ok i was thinking im pretty sure i fill up with more...maybe they dont run the tank that low... but that would obviously throw off the oct if they dont account for whats in there

mines only 14 gal

[335twins]

Originally Posted by chepy24

lol ok i was thinking im pretty sure i fill up with more...maybe they dont run the tank that low... but that would obviously throw off the oct if they dont account for whats in there

i don't run the car to empty tank each time i fill up. i'm about 1/4 till empty and when i fill up i get half 91 and half 85 which should be e50.. Would that throw off the octane that i have in there even though it was from previous half 91 and half e85 blend?

[chepy24]

Originally Posted by 335twins

i don't run the car to empty tank each time i fill up. i'm about 1/4 till empty and when i fill up i get half 91 and half 85 which should be e50.. Would that throw off the octane that i have in there even though it was from previous half 91 and half e85 blend?

it will not much but it will i would suggest using a e85 calculator because it can account for the e% in there already