What do you need to run e85

Discussion in 'E85 Technical Forum' started by gteatr6, Apr 8, 2010.

  1. TurboBob Tater Salad

    Message Count:
    3,936
    Online
    what you say "made a difference", what sort of difference.

    idle
    cold start
    power
    knock

    What gap? What plugs did you pull out, and how old were they, and what were they gapped at?

    What did you set the gap of the new ones at? what heat range were they?

    Bob
  2. turbobob924 Member

    Message Count:
    753
    Offline
    I thought guys had issues with the E3 plugs in our turbo Buick applications and mostly stayed with ACDELCO or Autolite plugs?
  3. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline
    Injectors are in. I pumped the tank out and filled it up with E85 (A whopping $40). Started right up and drove around the block like nothing new....

    Going to take some data now and lean on it a little bit to see where it's at.
  4. TurboBob Tater Salad

    Message Count:
    3,936
    Online
    I forget, which fuel pump are you using?

    E85 is a hoot compared to pump gas, and a simpler solution compared to alky kits. But you need injectors and pumps that will feed the requirement.

    Bob
  5. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline
    this car has a single 340 pump. I figure it can support the 80's to about 80-85% duty. Probably more on the 80% side... I know 255lph comes to about 69lb/hr (x6), but that's probably rated at 40 or 45 psi... not 70psi

    here's what I got so far. Driving the injectors to 70% and it could use a little more. But not bad for a couple of tuning runs. I'll have to ask Eric to free up some more duty cycle for me, as I already have the WOT adjustment maxed out and I would like to be able to push the injectors to 80%. The SMC is also on, but it's not pushing massive amounts of Methanol. Just a single nozzle.

    I like the way the car smells now. Smells like sweet corn, not like exhaust :cool:

    Next post has attached log file
  6. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline
    attachment

    screwed up the attachment somehow...

    Attached Files:

  7. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline
    Visuals....

    25psi. 70% duty cycle. 0 deg KR.

    [IMG]


    [IMG]
  8. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline
    Judging by that lazy 2-3 shift I'm thinking my trans could use a little "freshening" and maybe a little valve body tweaking... but it's good to go for now. :eek::D
  9. GNVYUS 1 A.K.A. DR.BOOSTER

    Message Count:
    3,395
    Offline
    What timing is the run above at?

    You have plenty left with an SMC and intercooler on the car, plenty.
  10. BEATAV8 The Engine Whisperer

    Message Count:
    2,717
    Offline

    23/21, base setting in the chip. I had the boost at 27 and it tickled the knock sensor. 1.2 degrees. Backed it back down to 25. I haven't looked at a TA49 compressor map in a while but I bet high efficiency island is pretty narrow up there around 27. Definitely can't complain though, runs just as good as it did with the 009's on Sunoco GT100.

    It could definitely use an intercooler. Just a stock one on there now with a duttweiler neck.
  11. turbobob924 Member

    Message Count:
    753
    Offline
  12. dvernst Member

    Message Count:
    958
    Online
    I sure do miss Randall rd. for those test runs!!! Nice job! I'm Jealous!
  13. bsdlinux Just Another BLACK Car

    Message Count:
    1,462
    Offline
    idle - certainly a difference here in both the gas and E-85 car. Kirban had customers report the same..just a better idle period.

    cold start - Yes they did help here. But what helped the most was just backing off the mixer a little to 9:1 E85 to pump gas. Its cold enough at this point your not going to see a performance decrease.

    power - mmm without a dyno who knows.

    knock - ran my E85 car with stock turbo at 22psi with 25 timing many many times with no issues from the E3 plugs

    Stock heat range and you cannot gap them. I've had great luck with them so far no complaints.
  14. bsdlinux Just Another BLACK Car

    Message Count:
    1,462
    Offline

    I never heard of any. Of course price would make many people stay with the Delcos. Of course many people on this board are not confortable trying anything new.

    There was a E3 thread at one point and I didn't remember anyone complaining about the plugs other than the price. :cool:
  15. gteatr6 Member

    Message Count:
    432
    Offline
    This might be a stupid question, but what would happen if you ran gas with the e85 chip? We have a couple of stations here for e85 and I am curious if you could run gas long enough to get to an e85 station. I am sure it would run rich as hell, but any other BAD things that could happen?
  16. Rafs-T-Type Not so Senior Member

    Message Count:
    1,707
    Offline
    I posted a thread a while back in which you could download E85 station locations to your GPS
  17. gteatr6 Member

    Message Count:
    432
    Offline
    Let's say that you have no choice but to run gas. What would happen?
  18. murphinator Member

    Message Count:
    554
    Offline
    if you have to run gas on an e85 tune my thoughts are:

    it will be rich by about 30% +

    your octane and most importantly knock resistance will be lower

    the cooling properties of alcohol will not be present( latent heat of vaorization)

    if you can/could stay out of boost probably be ok , if you get on it your rolling the dice
  19. gteatr6 Member

    Message Count:
    432
    Offline
    That is what I was thinking also. I was just curious. It is bound to happen sometime that you're almost out of e85 and there is not an e85 station close enough to get to. I am talking emergency use only of gas to get you to an e85 pump.
  20. 1outlaw New Member

    Message Count:
    77
    Offline
    What some guys do when they know that where they are going has a gap in availability (other than bringing fuel cans along) is to plan the gas fill early enough to only partially dilute down the ethanol. This prevents a swing way down into the very rich AFR while also extending the mpg's a bit to get to the next E85 pump. Going down to 40-60% gas will be a lot better than waiting for the tank to be low and settling for E10-E20.

Share This Page

^ Top