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ZUKIWORLD Discussion Forum => Technical Discussion - Performance / Modify => Topic started by: blknight87 on September 14, 2010, 04:42:16 PM

Title: hello all, long time no post haha... here's a ? for you!
Post by: blknight87 on September 14, 2010, 04:42:16 PM

now I don't favor what you think OF the idea, or really care to get negative feedback as to why, or what's the purpose, it's for my own doing and simpler to me, just entertaining the thought...

here's the ?

------------->   would, or could you take a vehicle with "coil packs" and eliminate them, converting back to "coils"? I know the computer controls spark, and timing, but here is my thoughts... if your "coil pack" has a resistor, wires going into the resistor, then from the resistor to the "coil pack", couldn't you take the "coil pack" and swap it out for a 'old school' "coil"? they have cheaper upgraded coils vs the more expensive upgraded coil packs. anyways, I am entertaining the idea of it... what are your thoughts?   

oh... this is just a project truck, it's an 86 Nissan D21 PU, has the Z24i TBI engine, 4 banger with 8 plugs, 2 coil packs.... 250K ok the dash, and no rebuild, but runs like a raped ape! Just entertaining the idea of converting to regular coils, 1 for the look, 2 cause i think it would be better for spark with upgraded coils at a cheaper route, 3, I'm just freakin nuts and wanna say yes I can haha.. any and all thoughts are welcome, pertaining to the theory. please leave the negative "WTF" thoughts and comments to your own head, much appreciated.... BLKNIGHT

Title: Re: hello all, long time no post haha... here's a ? for you!
Post by: Drone637 on September 15, 2010, 01:41:59 PM

Not exactly a Suzuki, but I'll put a thought into it.  If you switch it over to a coil system what are you going to use for a distributor?  With individual coils on each spark plug you no longer have a cap and rotor, and therefor no way to distribute the spark to each spark plug when it comes time to fire.

If your looking to rebuild your entire electrical system I would look at a Megasquirt kit instead.

Title: Re: hello all, long time no post haha... here's a ? for you!
Post by: blknight87 on September 15, 2010, 04:05:24 PM

that's the thing Drone, it has a distributor... it has 2 coil packs, and on the dizzy it has 10 plugs ports, 4 for the intake side plugs, 4 for the exhaust side plugs, and 1 for the intake side coil pack and 1 for the exhaust side coil pack to hook up to...

here is a diagram that I have drawn...

hope it makes sense.

Title: Re: hello all, long time no post haha... here's a ? for you!
Post by: wildgoody on September 16, 2010, 07:25:56 AM

I was going to do this with my Cavalier if the expensive coil packs
kept crapping out on me.

I see no reason why an old school coil would not work, I just don't
know if it would be better than the OEM junk that's hanging on the
engine right now.

What you need to know is stuff like the discharge voltage of the coils,
the coils saturation time, the old school coils might be slower and lower
than the new style coils, but seeing that you have a distributor you could
adjust for some minor timing issues.

The thought that crosses my mind is, old school coils seemed to last forever,
and these new style seem to fail in 3-5 years, sometimes less so why did they
change a good thing? I'm sure it had something to do with the emissions and
such

Wild

Title: Re: hello all, long time no post haha... here's a ? for you!
Post by: blknight87 on September 16, 2010, 07:52:12 PM

thanks for the input Wild, I am on the same page as you are on the matter... I think I will try it out, don't think it can hurt anything right! if anything, it will be as you stated, a slower, or weaker spark, or an advanced, or stronger spark, and the upgrades would be better than the crappy coilpacks...

I will post up my findings after I have done this