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Author Topic: e85 hard starts some times.  (Read 4080 times)

fuse

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e85 hard starts some times.
« on: June 11, 2010, 10:07:32 PM »
So I did a d16z6 swamped to e85 going turbo soon. But every ones and a while it hard starts in cold weather. What do you all do to try and help this situations? What did ford,gm do to fix this do they run a fuel/block heater or anything special or is all in the tune?

We will probably run normal fuel in the winter.
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turbob16hatch

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Re: e85 hard starts some times.
« Reply #1 on: June 11, 2010, 10:13:12 PM »
Quote from: fuse on June 11, 2010, 10:07:32 PM
So I did a d16z6 swamped to e85 going turbo soon. But every ones and a while it hard starts in cold weather. What do you all do to try and help this situations? What did ford,gm do to fix this do they run a fuel/block heater or anything special or is all in the tune?

We will probably run normal fuel in the winter.

You really are new to this, huh?  :?:

That's pretty much 99% of the reason a car runs well, a good tune.
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crttaz

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Re: e85 hard starts some times.
« Reply #2 on: June 11, 2010, 10:13:26 PM »
E70, the winter blend.
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Joseph Davis

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Re: e85 hard starts some times.
« Reply #3 on: June 11, 2010, 11:03:56 PM »
Add about 400% your normal cranking fuel and pile on the cold enrichment, it's probably not enough but it might not stall on you until it warms up.
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fuse

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Re: e85 hard starts some times.
« Reply #4 on: June 11, 2010, 11:06:53 PM »
Im not new new I just have a low post count. Its not all the time every blue moon. After the car starts no problems at all. The cranking time is not to bad maybe 4-5 seconds max. I was just wondering If I can make it better or if its normal or if a block heater would help or some other tricks.
« Last Edit: June 11, 2010, 11:09:46 PM by fuse »
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fuse

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Re: e85 hard starts some times.
« Reply #5 on: June 11, 2010, 11:08:45 PM »
Quote from: Joseph Davis on June 11, 2010, 11:03:56 PM
Add about 400% your normal cranking fuel and pile on the cold enrichment, it's probably not enough but it might not stall on you until it warms up.

That is kind of what I have done so far probably not 400% lol.
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Joseph Davis

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Re: e85 hard starts some times.
« Reply #6 on: June 11, 2010, 11:16:41 PM »
I posted up AEM screenshots of stock RB25 .cal vs E85 RB25 .cal... maybe four months ago?
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Joseph Davis

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Re: e85 hard starts some times.
« Reply #7 on: June 11, 2010, 11:19:13 PM »
FUCK YOU CLICK THIS SHIT SCROLL DOWN

I am so glad that I don't have to be a perfect little gentleman while dispensing bitter wisdom on this forum, but nowhere near as glad as I am that you guys take me the right way when I tell you that your mothers are sweet pieces of ass.
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fuse

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Re: e85 hard starts some times.
« Reply #8 on: June 11, 2010, 11:45:16 PM »
Nice Ok I will start adding some fuel. We had kind of figured this but just wanted that warm fuzzy feeling that jd gives me. I told him if it really has problems spray some tb cleaner on the air filter. One time it would not start at all tb cleaned it it fired up telling me its a fuel problem for the most part.

Do I need to mess around with other things like tp enrichment or any other setting? I did tweak some other settings a bit. So far the starting is the only problem found.
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Joseph Davis

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Re: e85 hard starts some times.
« Reply #9 on: June 12, 2010, 12:09:23 AM »
Don't worry about TP* enrichment, that's approximately proportional to the amount of fuel the engine needs steady state.  What requires an alcohol based fuel to be run so rich when cold cranking is at least 2% of "required" fuel has to be vaporized in order to ignite.  This simply doesn't happen at low temperatures with alcohol like it does with gasoline, so you throw more fuel at the problem in order to get more vaporized.


* Funny how TP to a Nissan faggot means THeoretical pulsewidth, but to a Ford guy it means throttle position.  Fuck you, I just drew my line in the sand.
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snm95ls

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Re: e85 hard starts some times.
« Reply #10 on: June 12, 2010, 12:26:46 AM »
Quote from: Joseph Davis on June 11, 2010, 11:19:13 PM
FUCK YOU CLICK THIS SHIT SCROLL DOWN

I am so glad that I don't have to be a perfect little gentleman while dispensing bitter wisdom on this forum, but nowhere near as glad as I am that you guys take me the right way when I tell you that your mothers are sweet pieces of ass.

Heh.  I forgot about that thread.  There is some good info in there.

Never did end up getting to mess with the E85 setup.

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kgx

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Re: e85 hard starts some times.
« Reply #11 on: June 12, 2010, 01:00:46 AM »
Quote from: Joseph Davis on June 11, 2010, 11:03:56 PM
Add about 400% your normal cranking fuel and pile on the cold enrichment, it's probably not enough but it might not stall on you until it warms up.

yup. you just need more fuel. there's almost no such thing as too much cranking enrich with E85 at cold temps.
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fuse

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Re: e85 hard starts some times.
« Reply #12 on: June 12, 2010, 01:31:14 AM »
Quote from: Joseph Davis on June 12, 2010, 12:09:23 AM
Don't worry about TP* enrichment, that's approximately proportional to the amount of fuel the engine needs steady state.  What requires an alcohol based fuel to be run so rich when cold cranking is at least 2% of "required" fuel has to be vaporized in order to ignite.  This simply doesn't happen at low temperatures with alcohol like it does with gasoline, so you throw more fuel at the problem in order to get more vaporized.


* Funny how TP to a Nissan faggot means THeoretical pulsewidth, but to a Ford guy it means throttle position.  Fuck you, I just drew my line in the sand.

Ya I was looking at a max tp like wtf is this at first?? I will chuck a shit load more fuel at it.
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