Coilpack System on Motor with Dizzy? Possibly?

**Sexc86** · 02-10-2007 09:38 PM

Hey guys, is it possibly to run a coilpack system on an engine that uses a dizzy? eg efi D or B series?.

obviously there would be advantages of coil packs especially at high rpm but, is there a kit on the market to make this possible on a dizzy motor? if so what is out there and aproximate price? pros and cons?

anyother feedback and recommendations would be more then welcome

Regards Lyle

**bennjamin** · 02-10-2007 11:22 PM

*off topic

If drag cars and racing cars around the world use OEM leads / ignition , doesnt that tell you something ? That you should spend your money elsewhere

**Chr1s** · 02-10-2007 11:32 PM

you can, you need ecu hardware modifications which will be able to drive the coilpacks rather than one coil.

i personally don't see a point unless the stock system is terrible. you can use bike coil sticks for each plug, but finding someone who can wire it all up for you might be tricky, the dizzy is just blanked off and the CAS is used for the spark timing.

unless you go for those msd units that do their own jazz.

**Sexc86** · 02-10-2007 11:39 PM

mmm im more worried about the effectiveness of the standard dizzy at high boost / high rpm... weather they can give a full charge spark or start fadeing off?

Anyone know how say a coilpack system would compare to a Digital dizzy system ? (Msg external Blaster coil, SCI box with all the multi-disscharge fire etc)

**Chr1s** · 02-10-2007 11:51 PM

the dizzy isn't the problem at high rpm, it's the coil.

invest in a jacobs coil and you'll be fine

you wouldn't notice the levels in drop in spark anyway, unless it's some serious spark blowout...run colder plugs and get a decent coil.

**dsp26** · 03-10-2007 06:36 PM

Originally Posted by Chr1s

the dizzy isn't the problem at high rpm, it's the coil.

invest in a jacobs coil and you'll be fine

you wouldn't notice the levels in drop in spark anyway, unless it's some serious spark blowout...run colder plugs and get a decent coil.

exactly!

it's because of the increased air density from boost, misfire occurs because spark current isn't strong enough to make aspark and bridge the gap...

he is also right on the money with colder plugs and decent coil being more than sufficient... multi-spark from digital systems only occur at lower revs for torque but have a bigger spark instead for higher rpm which a coil upgrade can do... i doubt very much your getting misfires below 4krpm unless either your plug/lead is dead/dying.