What coil should I run???

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rallye bob
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What coil should I run???

Post by rallye bob » Fri Jul 23, 2010 8:26 pm

I am switching from a MSD 7AL-2 ignition box to a (# 7520) digital-7 box..... I am running a #8201 MSD Pro Power Coil at this time.
Would I be better off to switch coils to a #8261, or can I stay with the #8201 coil with the new box?
TIA

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ep33510
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Re: What coil should I run???

Post by ep33510 » Tue Aug 03, 2010 2:15 pm

Rallye Bob

Please don't use the Pro power coil, go with either a MSD 8251 or MSD 8261 coil. If you want to save some cash on the change you can snag a MSD 8251 for around $130 and be down the road. We have found the MSD 8261 coil does show a difference on the bench but it does not show up on the track or Dyno. Hope this helps you out...
Pat Collins

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rallye bob
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Re: What coil should I run???

Post by rallye bob » Tue Aug 03, 2010 6:04 pm

Thanks for the response Pat.

I did not mention in my post, that I am running a crank trigger on this build. Does this change your recommendations at all?
I am going to go with the 8261.

Thanks again....

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ep33510
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Re: What coil should I run???

Post by ep33510 » Tue Aug 03, 2010 7:59 pm

No it changes nothing. :)
Pat Collins

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Dodge Freak
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Re: What coil should I run???

Post by Dodge Freak » Tue Aug 03, 2010 10:03 pm

How long do those 8251 last? Mine is a few years old but is just used 7 months of the year. Should coils just be changed after so long or if everything seems ok it likely is :?:

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ep33510
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Re: What coil should I run???

Post by ep33510 » Tue Aug 03, 2010 10:27 pm

The 8251 coils are stout pieces so they can take it. But like everything in a high energy environment we like to suggest every 3 to 4 years swap a fresh unit in. If your not in a tight class were all are hundreths away from each other than 5 to 6 years would be a good bench mark to work with......... :)
Pat Collins

TechWest Racing Services
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704-995-4286
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sc2dave
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Re: What coil should I run???

Post by sc2dave » Sat Sep 25, 2010 3:16 pm

www.msdignition.com go to the forum tech section.

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