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Old 10-15-2009, 07:49 PM   #1 (permalink)
IronButt
 
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Thundermax spark delay

Is tre a way to delay the spark for a few revolutions once the starter is pushed. I would like to give the automatic compression releases's a chance to open prior to there being a spark.
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06 CVO 113 Ultra
SE MVA Heads
SE 251
SE 50mm TB w/ 4.9 injectors
SE 10.5:1
ThunderMax ECM
Zipper A/C
AIM 92T VPC
LSR 2-1
3.37 Final Gearing
SE 4.375 Crank Darkhorse'd
Timken conversion
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Old 10-15-2009, 08:27 PM   #2 (permalink)
IronButt
 
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Quote:
Originally Posted by BadWeather View Post
Is tre a way to delay the spark for a few revolutions once the starter is pushed. I would like to give the automatic compression releases's a chance to open prior to there being a spark.
Not that I know of, however drop the timing at the 0 and 256 rpms to 1 degree or even 0 to help it out for starters. Another thing you could do is drop the initial fuel pulse way back. This will cause it to delay firing it up since enough fuel from the injectors is needed to fire and it will take a few revs to make this happen. Don't have an exact figure, but start at 50 on initial fuel pulse and go from there up or down until you get the behaviour you want. Should be do able.
Ron
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Old 10-15-2009, 08:52 PM   #3 (permalink)
IronButt
 
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Thats a great idea thanks
__________________
06 CVO 113 Ultra
SE MVA Heads
SE 251
SE 50mm TB w/ 4.9 injectors
SE 10.5:1
ThunderMax ECM
Zipper A/C
AIM 92T VPC
LSR 2-1
3.37 Final Gearing
SE 4.375 Crank Darkhorse'd
Timken conversion
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Old 10-16-2009, 09:51 AM   #4 (permalink)
IronButt
 
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This is only theory and I've only edited mine enough to ease the start process on my stock 96" As to whether it will work as planned with the ACRs I don't know. You still need to get past the first compression stroke. Either way, post your success or lack of so others can try it, or not waist their time. There's always a solution to a problem and hopefully this will help yours out.
Ron
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