Will the ISF run well with a blend of e85?
#121
Pole Position
Haha.....^^^^ that's cool! Needless to say I've enjoyed my car a lot more with the blending the last 4 months! You'll be hooked and never go back to straight gasoline, I mean why would you!?
#122
Instructor
iTrader: (3)
Has anyone actually logged the a/f ratios before and after to see if its actually running safe or is everyone just going by feel and knock levels?
Not sure if this helps but ive logged cali 91 pump gas to 93 octane and it looks like the a/fs were leaner and made more power on 93, but still on the rich side as noted I was told these motors like to run rich by Rafi. I didnt think to try e85 blend at the time, but now I know what to bring on the next dyno. Not sure if this helps, but here is a pic of the af logged between 91/93 octane fbo with RR tune, wish I had more time to get thorough logs, it was a quick drive thru and load on dyno and 3-5 pulls per mod, it is saved in the datbase however so I could always compare them at a later date.
I used to run full e85 on my prior car, and few symptons were: fuel pump failing prematurely leaving me stranded, cold start issues that tuning partially corrected, and fuel level sender corroded prematurely causing the fuel gauge to read empty all the time, but the results were well worth it as I've gained quite a few ponies and the cooling effect e85 has. I know this is a partial blend, but I am really anxious to try this out, but I'd like to log more data than just feel and knock correction values as things can get costly long term-wise.
Sorry about the nasty picture, I had to tell the tuner to send me a photo because I was in a rush and forgot to bring it with me.
Not sure if this helps but ive logged cali 91 pump gas to 93 octane and it looks like the a/fs were leaner and made more power on 93, but still on the rich side as noted I was told these motors like to run rich by Rafi. I didnt think to try e85 blend at the time, but now I know what to bring on the next dyno. Not sure if this helps, but here is a pic of the af logged between 91/93 octane fbo with RR tune, wish I had more time to get thorough logs, it was a quick drive thru and load on dyno and 3-5 pulls per mod, it is saved in the datbase however so I could always compare them at a later date.
I used to run full e85 on my prior car, and few symptons were: fuel pump failing prematurely leaving me stranded, cold start issues that tuning partially corrected, and fuel level sender corroded prematurely causing the fuel gauge to read empty all the time, but the results were well worth it as I've gained quite a few ponies and the cooling effect e85 has. I know this is a partial blend, but I am really anxious to try this out, but I'd like to log more data than just feel and knock correction values as things can get costly long term-wise.
Sorry about the nasty picture, I had to tell the tuner to send me a photo because I was in a rush and forgot to bring it with me.
#123
Lead Lap
iTrader: (13)
I mixed in 3 gallons of E85 and 93 octane for the rest. Car feels great - slightly better throttle response and my traction control light is flashing a lot more than normal in first and second gear. The difference this far has been noticeable, but not dramatic. I did not reset the ecu.
Ran into a modded GTR on the drive back from the gas station - and got beat. I was undewheled with the GTR highway performance - I thought he would blow me away, it was kinda even through 3rd gear and he started to walk away midway through 4th before we shut it down. Maybe he is not running great or maybe it's the E85!
Ran into a modded GTR on the drive back from the gas station - and got beat. I was undewheled with the GTR highway performance - I thought he would blow me away, it was kinda even through 3rd gear and he started to walk away midway through 4th before we shut it down. Maybe he is not running great or maybe it's the E85!
#128
Pole Position
It is more aggressive with my tune and logs according to Rafi @ 5,280+..........assuming it's taking advantage of the octane at sea level also?
#129
Pole Position
Bottom line is the E30 mix makes a considerable impact on leaning out AFRs at WOT. This *should* help create more power. The concern would be creating knock at these leaner ratios, but the added protection the E30 brings should prevent this. The IATs were almost identical on these two runs (starting at 108 and dropping to 97 during the pull). Car is FBO with tuned intake. Only difference is the pulls is E30 vs. 93.
Last edited by Meanstreak; 10-31-16 at 09:35 AM.
#131
Pole Position
Yes - I have that too but my spreadsheet just crashed . I am seeing about a 3-4% increase in MAF readings with same IAT which should correlate to more power.
#132
Tech Info Resource
iTrader: (2)
BTW, I've never seen E85 at a track before. Anyone else seen it? I would hate to do something like this and have to bring fuel for an entire weekend instead of buy it at the track.
#134
Pole Position
Oregon finally stopped this silly practice too? I had to force the attendant to put premium in my IS350 because he was convinced I didn't need it. Good thing we have the sticker in the gas door...
BTW, I've never seen E85 at a track before. Anyone else seen it? I would hate to do something like this and have to bring fuel for an entire weekend instead of buy it at the track.
BTW, I've never seen E85 at a track before. Anyone else seen it? I would hate to do something like this and have to bring fuel for an entire weekend instead of buy it at the track.
#135
Pole Position
With the blend being only 4.5gals E85 per tank you could bring your own and mix when you refill. Plan C would be go back to regular 93. Just lose a little power - nothing a driver mod wouldn't make up for