E85 diary
01-07-2013, 01:51 PM
#123
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cold start issues? add fuel.
During the chilly weather (IAT = 0°C, Coolant temp = 4°C) starting has become a little harder than last year, most likely due to diminishing compression.
Adding a fair amount of fuel, something on the order of 30%-35%, on start and post start has helped a lot. As always, this is just my data point.
Adding a fair amount of fuel, something on the order of 30%-35%, on start and post start has helped a lot. As always, this is just my data point.
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01-06-2014, 11:08 AM
#124
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Cold weather start improved!
Funny, this post is one year after the last one!
It's a bit chilly outside. This AM the coolant temp was 32°F and the ambient air temp was 27°F.
With the previous enrichment (30%-35%) it still took a LOT of cranking to make it fire in cold weather. It was a minute+ of cranking when it was in the 30's last week.
This morning I raised the coolant temp enrichment to 100%(double the starting fuel rate) and it fired within 3-4 seconds then idled on its own. This is after sitting for a couple days so it was cold saturated.
Right after it started, the afr's were in the mid 10's. Some of the Subaru guys go even richer but this seems to work ok for me.
Crank the fuel up!
(sporting a full size Optima doesn't hurt either)
It's a bit chilly outside. This AM the coolant temp was 32°F and the ambient air temp was 27°F.
With the previous enrichment (30%-35%) it still took a LOT of cranking to make it fire in cold weather. It was a minute+ of cranking when it was in the 30's last week.
This morning I raised the coolant temp enrichment to 100%(double the starting fuel rate) and it fired within 3-4 seconds then idled on its own. This is after sitting for a couple days so it was cold saturated.
Right after it started, the afr's were in the mid 10's. Some of the Subaru guys go even richer but this seems to work ok for me.
Crank the fuel up!
(sporting a full size Optima doesn't hurt either)
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01-06-2014, 11:17 AM
#125
Funny, this post is one year after the last one!
It's a bit chilly outside. This AM the coolant temp was 32°F and the ambient air temp was 27°F.
With the previous enrichment (30%-35%) it still took a LOT of cranking to make it fire in cold weather. It was a minute+ of cranking when it was in the 30's last week.
This morning I raised the coolant temp enrichment to 100%(double the starting fuel rate) and it fired within 3-4 seconds then idled on its own. This is after sitting for a couple days so it was cold saturated.
Right after it started, the afr's were in the mid 10's. Some of the Subaru guys go even richer but this seems to work ok for me.
Crank the fuel up!
(sporting a full size Optima doesn't hurt either)
It's a bit chilly outside. This AM the coolant temp was 32°F and the ambient air temp was 27°F.
With the previous enrichment (30%-35%) it still took a LOT of cranking to make it fire in cold weather. It was a minute+ of cranking when it was in the 30's last week.
This morning I raised the coolant temp enrichment to 100%(double the starting fuel rate) and it fired within 3-4 seconds then idled on its own. This is after sitting for a couple days so it was cold saturated.
Right after it started, the afr's were in the mid 10's. Some of the Subaru guys go even richer but this seems to work ok for me.
Crank the fuel up!
(sporting a full size Optima doesn't hurt either)
Keep adding fuel to the priming pulse until it stop starting any better (or you run out of fuel to add), then keep adding to the cranking pulse width until it stop starting better.
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01-06-2014, 11:45 AM
#130
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This list is probably old:
E85 Mustangs.com - Regional Fuel Chart by state
I would consider mixing in 93 if I had a flex fuel setup and was willing to turn the power down, which I am not! I firmly believe that E85 is the only reason my motor is still together.
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01-06-2014, 11:57 AM
#131
I'm in Northern CA
Its in the mid/low 30's in the mornings here right now.
I've talked to a few folks around here that test on a regular basis that told me it hasn't changed here, but who knows.
Are you running a FLAT OUT timing map? Cause if you're not I don't think it would hurt your car
Its in the mid/low 30's in the mornings here right now.
I've talked to a few folks around here that test on a regular basis that told me it hasn't changed here, but who knows.
Are you running a FLAT OUT timing map? Cause if you're not I don't think it would hurt your car
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01-06-2014, 01:35 PM
#133
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Thanks for posting this great information. 22°F is probably warm for you CO guys!
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