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-   -   Coldest start possible on e85 stag2 oft? (https://www.ft86club.com/forums/showthread.php?t=84644)

trdric 03-14-2015 02:25 PM

Coldest start possible on e85 stag2 oft?
 
What temperature where you guys able to start your car on e85? its roughly -10C (14F) here in the morning and I wanted to know if the car will start if I switch over to E85.


If not, what temperature do you think I will start without any issues !

Jyn 03-14-2015 10:06 PM

lmao mine had trouble starting when it was 50*F. I switched back to 93 octane because of it, but they say mixing in a little bit of 93 octane will help bring the e-content down enough to where starting isn't a problem. I'd recommend getting a flex fuel kit at that point.

steve99 03-15-2015 01:59 AM

Quote:

Originally Posted by trdric (Post 2168966)
What temperature where you guys able to start your car on e85? its roughly -10C (14F) here in the morning and I wanted to know if the car will start if I switch over to E85.


If not, what temperature do you think I will start without any issues !

Getting E85 to start at those temps is going to be difficult.
It might be best to wait till it warms up a bit, or have a can of engine start handy.

cold start mods these guys did worked down about 20 degrees.
you can also add a gallon or so of petrol to make starts easier
http://www.ft86club.com/forums/showp...1&postcount=40



http://www.ft86club.com/forums/showthread.php?t=67310


A flex fuel kit wont help starts on E85 , its just the properties of ethanol that make it hard to start.

trdric 03-16-2015 02:18 PM

for information, the car started easily this morning at -5C(23F)

D_Thissen 03-16-2015 02:42 PM

Quote:

Originally Posted by trdric (Post 2171030)
for information, the car started easily this morning at -5C(23F)

Was the car in the garage or plugged in by any chance?

trdric 03-16-2015 04:42 PM

nop outsde for night. i was home at 8pm and drove away this morning at 7AM

Silver Ignition 03-16-2015 05:18 PM

I'll usually have pops and weird idle for the first few minutes under 40*F even with the cold-start IPW changes. Lowest I dropped down to using e85 this winter was about 25*F and started on the first try, albeit with the aforementioned pops and weird idle...

carlitosway6891 03-16-2015 05:50 PM

anything at or lower than 50 degrees and mine would take several attemps to get started. back on 93 till it stays warm =(

bfrank1972 03-16-2015 05:55 PM

Depending on where you are, you might not be getting E85 from the pumps - in colder climates they switch to a winder blend with less E content to help the flex fuel vehicles with starting in very cold weather.

trdric 03-16-2015 06:08 PM

[ame="https://www.youtube.com/watch?v=ceFu46s72Vs"]e85 cold start -5C - YouTube[/ame]

video of is starting

steve99 03-16-2015 06:16 PM

Quote:

Originally Posted by trdric (Post 2171030)
for information, the car started easily this morning at -5C(23F)


Assume that was with cold start mods ??

trdric 03-16-2015 06:45 PM

not at all im new to OFT and havent done anything other than writing

cawith 03-16-2015 08:29 PM

Quote:

Originally Posted by Silver Ignition (Post 2171282)
I'll usually have pops and weird idle for the first few minutes under 40*F even with the cold-start IPW changes. Lowest I dropped down to using e85 this winter was about 25*F and started on the first try, albeit with the aforementioned pops and weird idle...

I have had the same issue and I'd also done the IPW changes.
Don't know what the popping is, but it doesn't sound very good. Found out that if I revved it to 2500-3000 rpm just once immediately after the engine had turned on, then the popping would not happen. Have you tried that?

momo3605 03-16-2015 09:38 PM

The popping is just excess fuel being burnt. By giving gas, you push more fuel, so it ignites on the exhaust side causing the pop. It's harmless. There's a thread dedicated to how to get the car to pop and crackle more :D Mini Coopers and Abarth's pop and crackle like crazy

bfrank1972 03-16-2015 11:40 PM

Quote:

Originally Posted by cawith (Post 2171601)
I have had the same issue and I'd also done the IPW changes.
Don't know what the popping is, but it doesn't sound very good. Found out that if I revved it to 2500-3000 rpm just once immediately after the engine had turned on, then the popping would not happen. Have you tried that?

It's just misfire - fuel doesn't ignite consistently at first when everything is cold. Fuel buildup can cause it to ignite back into the intake manifold. In your case it's pretty harmless, it should last only a short while and backfires are minimal, just let it idle it out. In other cases it can be a problem - first thing that comes to mind is the early 80's porsche 911 SC with the CIS fuel injection systems. Intake backfire would split open the airbox!

EAGLE5 03-17-2015 12:24 AM

I strongly enriched several start tables and got first-try starts on e85 at 50F. This is with Propel, which has a high ethanol content. A gallon or two of 91 will also go a long, long way towards easing starts. If you go from a near-empty tank of 91 and then fill it with ethanol, you'll start just great because of that gallon of gas sloshing around. Run it low again and fill up with e85, however, and without that extra gas, the hard starts begin.

Akari 03-17-2015 05:42 PM

With true E85 I had problems starting below 50 degrees with a unaltered OFT Stage 2 E85 tune.

Wayno 03-17-2015 09:24 PM

Someone will have to define "hard start". To me that means it doesn't start on the first crank. To someone else that might mean it starts after 5 or 10.

Silver Ignition 03-19-2015 09:15 AM

Quote:

Originally Posted by Wayno (Post 2173268)
Someone will have to define "hard start". To me that means it doesn't start on the first crank. To someone else that might mean it starts after 5 or 10.

Mine's a SmartKey so I go by if it starts on the first button press or if I have to shut it off and try again; havent had to do that since making the IPW changes


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