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post #1 of 8 (permalink) Old 12-12-2008, 09:43 PM Thread Starter
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Dynatek High Energy Coils

I got a brand new set that have not been installed, I will sell them for $100 plus shipping. I don't feel right selling them as I don't think they do anything and Magellan agrees. He has them. He said his miss was fixed with jetting too.

I have dynoed Dynatek coils on a Rhino and Prowler and got no gain.

Believe this or not it only takes 2000 volts to spark a plug the higher voltage is to stop misfires on heavy fueling. I know what I just said means they work, no I mean the voltage the stock ones put out which is much higher than 2000 is good enough.

For what it is worth, MSD tested a HD coil on a Rhino and agreed it did nothing.

Guys we are not lighting a 2000 HP drag care engine. LOL!!



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post #2 of 8 (permalink) Old 12-13-2008, 08:00 AM
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Todd, I appreciate your honesty as ususal. I was wondering about the coils, a lot of people said they stopped the miss but I thought it was because of jetting also. Thanks again.
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post #3 of 8 (permalink) Old 12-13-2008, 06:18 PM
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In my case it was jetting that cured the miss. Lean Mid.

The coils do seem to help cold starting I think though.

2011 Teryx Sport
2011 50" STD RZR LE

Last edited by Magellan; 12-13-2008 at 06:25 PM.
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post #4 of 8 (permalink) Old 12-13-2008, 09:16 PM
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From the other posts
"What I do think it could help with, is when decelerating, (or letting off the throttle) I can smell "incomplete" combustion of the fuel, which actually causes some backfiring or rumbling noises. I would like to know if the hotter temp coils could prevent this, that is what I am asking I guess."

Will or Todd, do you have any rumbling or slight back firing when you are letting off the throttle? This seems to be the only place that I am experience the issue?
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post #5 of 8 (permalink) Old 12-14-2008, 02:27 AM
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Quote:
Originally Posted by Teee-rible View Post
From the other posts
"What I do think it could help with, is when decelerating, (or letting off the throttle) I can smell "incomplete" combustion of the fuel, which actually causes some backfiring or rumbling noises. I would like to know if the hotter temp coils could prevent this, that is what I am asking I guess."

Will or Todd, do you have any rumbling or slight back firing when you are letting off the throttle? This seems to be the only place that I am experience the issue?
Right now I do because I got sent the wrong pilot jets for the Std bore kit. Normally I do not, that is the idle mix screws that adjust that out Teee-rible once you have the right pilot jet size. I had it completely gone before the std bore kit. I will have it gone again as soon as I get the proper pilots.

2011 Teryx Sport
2011 50" STD RZR LE

Last edited by Magellan; 12-14-2008 at 06:52 AM.
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post #6 of 8 (permalink) Old 12-14-2008, 02:45 AM
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Pilot jet (Slow jet): If unable to obtain a smooth idle with pilot screw, increase the pilot/slow jet until a smooth idle can be obtained. The pilot/slow jet will eliminate or reduce popping that occurs when letting off wide open throttle. The pilot/slow jet will also improve cold weather starts. Go up 1 pilot/slow jet at a time, don't skip sizes. After installing a larger pilot/slow jet, re-adjust the pilot screw.

My machine is DEFINITELY easier to start now with the STD Bore Kit and the new coils. I can start it now without touching the gas pedal standing outside of the machine when it is 20 degrees.

2011 Teryx Sport
2011 50" STD RZR LE

Last edited by Magellan; 12-14-2008 at 10:09 AM.
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post #7 of 8 (permalink) Old 12-14-2008, 07:52 PM
 
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I cured my mid-throttle miss, I thought. I moved my clips on to slot 2 on the needles, and jetted up to a 146 front and 148 rear, and it seemed to take all the miss out. It was perfect while the temp ouside was round 50-55 degrees. Now temp ouside is 75-80 and getting some mid-throttle miss again. Would outside temp make it do this??
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post #8 of 8 (permalink) Old 12-14-2008, 10:19 PM Thread Starter
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Yes, temp changes change jetting needs.



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