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Thread: Tuning for E85?

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Posts: 1-9 of 9
2014-05-07 22:40:28
#1
Tuning for E85?
All I need to do is increase fuel by about 30% or at least where my current fuel ratio is (around 11.5:1)?

How about idle and start ups? Will the b14 ecu automatically adjust to this with the increase in k-value?
2014-05-07 23:45:59
#2
Everywhere needs about 30% more fuel. Cranking pulses, cranking transition to running, idle, tip-in enrichments, etc.
Everywhere.

Will increasing the k-value be enough? Question for someone else to answer.
Last edited by BenFenner on 2014-05-07 at 23-47-12.
2014-05-08 02:15:10
#3
@shagspeed
2014-05-08 03:20:06
#4
Originally Posted by BenFenner
Everywhere needs about 30% more fuel. Cranking pulses, cranking transition to running, idle, tip-in enrichments, etc.
Everywhere.

Will increasing the k-value be enough? Question for someone else to answer.


Ya I was just planning on increasing k-value. That should at least take care of WOT runs I think. As you stated, however, I'm unsure if this is enough or if I need to touch other areas of the tune.
2014-05-11 19:22:01
#5
anyone else done this before that can offer some advice?
2014-05-11 19:58:59
#6
Increase k value till you get a decent idle afr and adjust from there.
2014-05-11 20:31:17
#7
Originally Posted by gio94sr20ve
Increase k value till you get a decent idle afr and adjust from there.


OK so I shouldn't really need to touch other areas of the tune except, k-value right?
2014-05-11 21:38:11
#8
Right, your going to have to lower the k value to get you in the ball park. Once your there start adjusting your load tables for drivability.

- - - Updated - - -

Right, your going to have to lower the k value to get you in the ball park. Once your there start adjusting your load tables for drivability.

- - - Updated - - -

Right, your going to have to lower the k value to get you in the ball park. Once your there start adjusting your load tables for drivability.
2014-05-12 02:41:51
#9
Originally Posted by gio94sr20ve

Right, your going to have to lower the k value to get you in the ball park. Once your there start adjusting your load tables for drivability.


OK cool, that confirms my idea. I adjusted by 520cc tune when I went to 72lb injectors by doing nothing other than raising k-value pretty much (and inj latency + TP tables and such of course) and car's been running fine.

I just want to be sure because when I'm at the gas station filling up with E85 and the car doesn't start or runs like crap then I may not even get home lol
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