e85 specialists please chime in
e85 specialists please chime in
I wanted to know what the benefits are of running straight e85 as opposed to a 50/50 mix. I'm currently on a 50/50 mix and was wondering which way is better. I just bought some 80# injectors and a 2.6 that will be going on the car soon. Any and all info will e greatly appreciated.
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From: West Carrollton (Dayton), OH
Running E85, if bought from the same pump/station each time, it'll be more consistent in the % of ethanol. Hell, it's just easier to go to the full E85 lol. I'm at work, so quick response only. I'll get all techy later
I wouldn't say i'm at E85 Specialist, but i've been around it for a little while now.
Advantages:
- Cooler Engine Temps (10-15*)
- Cleaner Burning
- Higher Octane Rating
- More Timing
- Cheaper by the Gallon
Disadvantages
- Burns Faster (less gas mileage)
- Doesn't Like Cold Starts Too Well
- Not as Conveniant for Long Trips
With a full blend of E85 you'll gain more power for sure mainly due to it being a higher octane rating and the cooling factor you'll be aloud to add more timing to your tune because the higher octane rating will be more stable causing less KR (knock retard). if you can keep ur KR down you can continue to add timing although anything past 26* of timing hasn't seemed to prove efficient. Also I wouldn't reccommend a 2.6" pulley especially if you have a led foot. 2.8 is the lowest pulley you can run on the m62 and stay efficient. the 2.6 will make more hp and torque at lower rpms, but after you hit peak ur power will actually start to fall off from overspinning the SC.
Advantages:
- Cooler Engine Temps (10-15*)
- Cleaner Burning
- Higher Octane Rating
- More Timing
- Cheaper by the Gallon
Disadvantages
- Burns Faster (less gas mileage)
- Doesn't Like Cold Starts Too Well
- Not as Conveniant for Long Trips
With a full blend of E85 you'll gain more power for sure mainly due to it being a higher octane rating and the cooling factor you'll be aloud to add more timing to your tune because the higher octane rating will be more stable causing less KR (knock retard). if you can keep ur KR down you can continue to add timing although anything past 26* of timing hasn't seemed to prove efficient. Also I wouldn't reccommend a 2.6" pulley especially if you have a led foot. 2.8 is the lowest pulley you can run on the m62 and stay efficient. the 2.6 will make more hp and torque at lower rpms, but after you hit peak ur power will actually start to fall off from overspinning the SC.
here shortly after winter chevycobaltss3 and i are going to do a lot of experimenting on my car with a 2.6" pulley and a 2.8" pulley with both tuning and a dyno to show curves, hp and tq numbers etc.
If for 200$ it makes a big difference and it's a lot safer, I won't cheap out lol
Kendall is my tuner. I've been happy with his tuning. I just wanted to know what the difference is in running straight e85 as opposed to the 50/50 blend I'm running now.
i would hope not you should have plenty to go all the way down to a 2.5 on gas and yes i read that but 80s and E on a tvs 2.8 dosent max out the inj if you tune it correctly but its close
Actually yes it does max idcs out.. 80s are to small if he doesn't have a referenced fuel system. The pump can handle it a Lil. Bow you can run high 12afrs all day and be real close to maxxing the idcs out but its unsafe even with ethanol. In order for someone to correctly run e85 and a lower pulley they need the reference ed fuel system at least. If not its basically just putting a band aid over somthing.
maxxing injectors 85%-100% and this is where they go static.
maxxing injectors 85%-100% and this is where they go static.
Last edited by Chevycobaltss3; Jan 21, 2012 at 03:55 PM. Reason: Automerged Doublepost
Actually yes it does max idcs out.. 80s are to small if he doesn't have a referenced fuel system. The pump can handle it a Lil. Bow you can run high 12afrs all day and be real close to maxxing the idcs out but its unsafe even with ethanol. In order for someone to correctly run e85 and a lower pulley they need the reference ed fuel system at least. If not its basically just putting a band aid over somthing.
maxxing injectors 85%-100% and this is where they go static.
maxxing injectors 85%-100% and this is where they go static.

I wanted you to tune my cobalt last summer (we talked a bit) but my temps were too high at the time...I found out later that my IC pump wasn't working...
So anyways, a few more mods until I ask you for a tune


