Anyone want to school me on E85?
09-18-2014, 03:37 PM
#1
Anyone want to school me on E85? Im going to run E85 on my FI setup. Im hope that Im over 450rwhp and with that being said I understand that I will need dual in tank pumps. I have a E85 base tune, with 80# injectors and a wideband. What else is needed for my fuel system?
09-18-2014, 04:36 PM
#2
TECH Addict
With your build (specs in sig??) you should easily top 450rwhp. Easily. 450rwhp shouldn't need 80# injectors (36# would handle it) nor dual pumps (a 255 would handle it).
With what you have being put together, your power should be substantially higher. You planning on N2O also?
For the rest of it, I'm not exactly sure. Dual pumps should be needed for 80# injectors, and you'll need a hot wire kit for both pumps too. Don't forget the kill switch on the back. If you haven't already, it might be a good time to move the battery to the trunk.
With what you have being put together, your power should be substantially higher. You planning on N2O also?
For the rest of it, I'm not exactly sure. Dual pumps should be needed for 80# injectors, and you'll need a hot wire kit for both pumps too. Don't forget the kill switch on the back. If you haven't already, it might be a good time to move the battery to the trunk.
09-18-2014, 10:29 PM
#3
Don't forgot a turbo motor will have a higher BSFC than NA motors.
At basic you need a quality 1:1 boost referenced adjustable fuel regulator, and run it around 60psi base. Make sure all your rubber fuel lines are E85 compatible.
Look up the lonnies double pump setup and mimic that. Large bulkhead pass through wire, heavy duty relays, and a good fused hot lead for each pump with quality grounds. Have the second pump be triggered via a hobbs switch set to whatever boost you feel you need more fuel.
Nothing really complicated but, E85, 80# sticks and a 7875 will be a tough combo, I bet you run out of fuel.
At basic you need a quality 1:1 boost referenced adjustable fuel regulator, and run it around 60psi base. Make sure all your rubber fuel lines are E85 compatible.
Look up the lonnies double pump setup and mimic that. Large bulkhead pass through wire, heavy duty relays, and a good fused hot lead for each pump with quality grounds. Have the second pump be triggered via a hobbs switch set to whatever boost you feel you need more fuel.
Nothing really complicated but, E85, 80# sticks and a 7875 will be a tough combo, I bet you run out of fuel.
09-19-2014, 08:22 AM
#4
With your build (specs in sig??) you should easily top 450rwhp. Easily. 450rwhp shouldn't need 80# injectors (36# would handle it) nor dual pumps (a 255 would handle it).
With what you have being put together, your power should be substantially higher. You planning on N2O also?
For the rest of it, I'm not exactly sure. Dual pumps should be needed for 80# injectors, and you'll need a hot wire kit for both pumps too. Don't forget the kill switch on the back. If you haven't already, it might be a good time to move the battery to the trunk.
With what you have being put together, your power should be substantially higher. You planning on N2O also?
For the rest of it, I'm not exactly sure. Dual pumps should be needed for 80# injectors, and you'll need a hot wire kit for both pumps too. Don't forget the kill switch on the back. If you haven't already, it might be a good time to move the battery to the trunk.
I was planning on running dual 450lph E85 pumps or 2 320lph E85 pumps
09-19-2014, 08:40 AM
#6
Just have your tuner monitor it, its no big deal to watch injector duty cycles and stop when they get high. If you don't push it hard, you may get away with it but again just run it and see what happens. With enough pump you can always run more base pressure.
09-19-2014, 11:51 AM
#7
TECH Addict
E85 has 73% the energy density of 100% gasoline. Most pumps are at E10 now days though. So to flow the same amount of fuel for the same amount of power you'd have to increase flow by ~30% (for easy math). So ~47# injectors would replace 36# injectors and do 450rwhp on E85 easily.
You're boosted which will change the AFR's a bit. All I was saying is that with your build (in sig right??) and HP goals you should easily hit it. I think you'll be making more than 450rwhp when you put it on the rollers.
Trending Topics
09-19-2014, 12:19 PM
#8
E85 calculators call for 54# injector with 60psi base, 80% DC and 450whp.
On my setup I am at the threshold of comfortable with 80# and 93 octane, so I would think he will find the limits of 80# sticks with a 60psi base. But, if you have the pump, crank that pressure and see how she does.
On my setup I am at the threshold of comfortable with 80# and 93 octane, so I would think he will find the limits of 80# sticks with a 60psi base. But, if you have the pump, crank that pressure and see how she does.
09-19-2014, 12:57 PM
#9
TECH Fanatic
iTrader: (2)
Join Date: Dec 2010
Location: Oklahoma
Posts: 1,084
Likes: 0
Received 0 Likes
on
0 Posts
Lets not forget fuel lines. I personally would go with a -10an feed and -8an return unless you wanted to go with 2 -8an feeds and a single -10 return that would allow a bunch of room for growing. E85 is awesome for boost but it does require tons of fuel. Don't forget to get a filter setup that can flow it as well.
09-19-2014, 02:44 PM
#11
Lets not forget fuel lines. I personally would go with a -10an feed and -8an return unless you wanted to go with 2 -8an feeds and a single -10 return that would allow a bunch of room for growing. E85 is awesome for boost but it does require tons of fuel. Don't forget to get a filter setup that can flow it as well.
09-19-2014, 04:51 PM
#13
TECH Addict
I just went back to my last dyno run and looked over my VE, plus air density. I crunched the numbers and figured out that my injector duty cycle was actually closer to 73% (100% VE at 6400rpms, 12.9:1AFR, 85% relative density). I didn't realize the discrepancy between the logger and actual. Hmm, that changes things a bit.
I still think 450rwhp is going to be exceeded. I don't think that is optimistic either.
09-19-2014, 07:25 PM
#17
TECH Addict
Datamaster shows me an injector duty cycle and base pulse width. Scan9495 shows my only base pulse width.
E85 is far better for boosted and high compression than pump gas because of it's ridiculously high octane rating. You could go boosted and lean and still not get knock. He's at 10.5:1 SCR, with E85 he can still run a good amount of boost. With pump gas it'll start knocking with not much boost and you'll have to dump fuel in and pull timing, both bad for power.
E85 is far better for boosted and high compression than pump gas because of it's ridiculously high octane rating. You could go boosted and lean and still not get knock. He's at 10.5:1 SCR, with E85 he can still run a good amount of boost. With pump gas it'll start knocking with not much boost and you'll have to dump fuel in and pull timing, both bad for power.
09-19-2014, 07:49 PM
#18
Launching!
Join Date: Jan 2014
Posts: 227
Likes: 0
Received 0 Likes
on
0 Posts
Nj has e85 just gotta drive up to newark to get it. Look up nitrousking on youtube, hes pumpgas sbc with a turbo and see if you need e85 for your build. Hes got way more horses than you, and if your tuner says you need it find a more competant tuner unless youve decided to run high compression for a turbo build that needs racegas
09-19-2014, 08:07 PM
#19
Nj has e85 just gotta drive up to newark to get it. Look up nitrousking on youtube, hes pumpgas sbc with a turbo and see if you need e85 for your build. Hes got way more horses than you, and if your tuner says you need it find a more competant tuner unless youve decided to run high compression for a turbo build that needs racegas
Fastest SBE LSX stuff? Yea, on E85. There is a reason for that.
Is it needed for me? No, but it would be nice to have it available. I would change things around to optimize stuff for that. But, would need some #120 sticks etc.