Topic: Callin all Masters - 3 ohm v.s 5 ohm coils

[RpBet]

I love this site! You guys are awesome. My questions have been answered plus some .

Thanks to all. I will check out Hondamans set up. Fastbroshi really I appreciate the info and tips.

I have decided to go with 3 ohms, manly because of Hondamans information regarding late model 750's. And they don't get any older than my SOHC. I know I said I wanted "as reliable as possible" however, I was looking to advance my system slightly with the dyna ignition. Plus I personally am not a fan of the points system.

Thanks again to all!!!!!!

[Skunk Stripe]

I will see if I find anything for those denso plugs.

[Roach]

RpBet you have a PM

[fastbroshi]

Does that mean I should be gapping the plugs on my K1 at 0.45"?

Sorry,  thought you were the original poster and had the 3 ohm coils.  If you set to that gap with your 5'ers,  I think you may have inconsistent spark. 

[wannabridin]

i wonder what the proper gap would be with 3 ohm coils, iridium plugs and a Hondaman box??

[Skunk Stripe]

I think it is something to test but on most cars with their high energy sparks that top 60,000 volts, it seems to average around .045.
I would probably not go over .035 myself but who knows, maybe .040 works.

[Kong]

I believe Dyna rates both the 5- and 3-Ohm coils at 35,000 volts - I know, it doesn't make any sense to me either. 

[dave500]

set the gap standard,but file the earth electrode back so it exposes about 50%or less of the centre electrode,this is an old hot rod trick and costs nothing.

Sounds interesting. Makes sense. Any minuses?
Does any of you guys have experience with Denso's new Twin Tip plugs? They're much cheaper.

place a hacksaw blade or similar to protect the centre electrode as you file, and file nice and square with finesse,de burr and blow it out with compressed air after,itll expose a little more spark thats otherwise shrouded,im sure some older hot rod fellas will know this old one?it works best at cruise and light throttle,dont expect to be suddenly doing wheel stands,im not one for twin electrodes,the standard singles do as good,i like denso with the groove in the earth electrode.

[Deltarider]

,im not one for twin electrodes,

No, no, that twin tip spark plug doesn't have an extra electrode. It has a tip of the precious stuff soldered on the earth electrode to save iridium.

[Kong]

This discussion should be moved to the humor section.  Split-fire plugs?  You gotta be kiddin, right?

[btriepke]

I know i'm pulling up an old thread here, but i'm a bit confused. I have the dyna ign with "green" dyna coils. I assume 3ohm? The only marking on the coils are "12v 8-84" Should i have NGK Spark Plug Cap - XD05F - on the end of the wires, or just a regular spark plug wire? it says those NGK's are 5K Ohm Resistance? i'm using a modern reg/rec unit if it makes a difference!  thanks   Trip

[dave500]

yep use the 5kohm.