E85 tune on g37
#33
Registered User
iTrader: (3)
Made more power and torque across the entire band. People spend $500 on cold air intakes and $1400 on exhaust. I'd say it's worth it:
Gains from E85 (ethanol) on an N/A bolt on 370Z - Nissan 370Z Forum
Gains from E85 (ethanol) on an N/A bolt on 370Z - Nissan 370Z Forum
#35
Premier Member
iTrader: (4)
Very interested to see if this will work as planned (not changing pump just injectors) then retuning for e85. Can anybody point me in the direction of a diy for injectors?
So I’m hoping for a easy 10whp on a fbo car? Is that crazy to think? Interested in how far I can go on a fill up on e85. Usually get 250-400 per tank on 93 depending on driving.
It’s my impression you will have to burn 30% more fuel on e85 because it has less energy? So maybe 100 less miles per tank, also e85 is $1.99/gallon vs 93 is $3.xx/gallon here in Georgia. E85 is at least $1 less a gallon, so $18 less a tank. We will see I guess what the real world mileage will be.
So I’m hoping for a easy 10whp on a fbo car? Is that crazy to think? Interested in how far I can go on a fill up on e85. Usually get 250-400 per tank on 93 depending on driving.
It’s my impression you will have to burn 30% more fuel on e85 because it has less energy? So maybe 100 less miles per tank, also e85 is $1.99/gallon vs 93 is $3.xx/gallon here in Georgia. E85 is at least $1 less a gallon, so $18 less a tank. We will see I guess what the real world mileage will be.
#36
Premier Member
iTrader: (2)
I've been running E85 for over a year and a half now on the stock pump. No issues. I have GTR injectors and a ECUTek tune. Clear 5% increase in power on the dyno and felt on the road when you go from 9ish-10% ethanol to 60%+ ethanol. I get around 20.2mpg on 93O and around 15.7mpg on E85. I've actually kept hand written records of the fuel, mileage, and cost since I went flex-fuel. E85 to date might give me less distance but is slightly cheaper still and gives me better power. I drive with a heavy foot and am pretty much full bolt-on N/A.
#41
Registered Member
i plan on running an E85 tune, only thing needed is the upgraded injectors. you dont need a pump or upgraded hoses.
Stock pump handles fine and my buddy running e85 on his coupe has used stock hoses for 2 years and no issues so get some 550's and go from there.
IF you plan on running FI or SC get larger ones at least 1k cc's tobe able to handle everything.
I'm FBO and dont plan on SC or turbo for another few years so 550's are more than enough to handle what I have.
Stock pump handles fine and my buddy running e85 on his coupe has used stock hoses for 2 years and no issues so get some 550's and go from there.
IF you plan on running FI or SC get larger ones at least 1k cc's tobe able to handle everything.
I'm FBO and dont plan on SC or turbo for another few years so 550's are more than enough to handle what I have.
#43
#45
What they do is put a map for e85 and 93 that you will have to empty out your tank almost completely before switching fuel types.
for me when I am in park when I hold the cancel on the cruise control my maps show on my RPM's, RPM 1 is map 1 (93) and RPM 2 is my e85 map.
IMHO worth it when we spend over $2000 on our cars for minimal gains all together.
However, you will definitely need a tune.