Please forgive me if I misuse terms, feel free to correct me - I'm looking to learn, I have no problem with being wrong.

In reading up on Superchargers, before getting mine, I learned about upgrading the ignition components. Recommended was:

1. New spark plugs
2. Setting spark plugs with larger gaps for bigger sparks
3. Ignition timer for amplified spark, and possibly repetitive spark for "sure fire".
4. Upgraded Ignition wires, or lines, or whatever they're called.

All of this made perect sense when explained in the book. I mentioned it on this forum, and somoene pointed out, "Yeah, but you can't do most of that since the S2000 is distributor-less...".

So that totally threw off my point of knowledge, and I'm back to not knowing what the heck I'm talking about, and how to improve ignition on the S2000. My main interest is to be sure that I'm getting the best bang out of my Supercharger.

Anyone want to clear this ignition business up for me?

Wesmaster

 

Multispark ignitions are not particularly useful on our cars, especially since they only do multispark at low rpm.

New spark plugs, particularly going one heat range colder is a good idea - it will help prevent detonation.

Gapping the plug bigger is hit or miss. A bigger gap does provide better ignition, but your stock ignition may not be able to consistenly arc across it with the additional cylinder pressure (nice catch 22, eh?).

That said, stock Honda ignitions are very good from the factory. Even on high boost applications I've never seen gains of more than 2% with a good aftermarket ignition system. With a mere 6 psi on the Comptech, you'd be lucky to gain 1-2 hp. your money is better spent elsewhere.

UL

 

Hey guys-


Two things...

1. Don't regap plated plugs- platinum plugs are plated. Regapping them will rub off the plating at the tip- not something you want.

2. Aftermarket ignition amplifiers are good only if you have high rpm misses due to unstable voltage (happens with adding more boost than what the factory designed it for usually). Since the S2000 was initially designed as a NA car, I don't think it's necessarily up to the job, but then again, I assume Comptech would have taken care of it if it were a problem.

 

I totally agree with the above posts. HKS was playing once with their twin spark ignition amplifier for the S2K. They even mention an application in the catalog but later pulled the plug on it.

The best you can do is get some Iridium plugs either IK24 or IK27 if you are going the SC way. IK22 or IK 24 for NA.

 

Would there be any point for a company to make aftermarket coils for the S2k?

 

I asked this same question to my installer, and he said:

One level colder plugs

MSD DIS (Distributor less) ignition timing

LOWER the gap of the spark plugs (to "36" - whatever that means)

He said you couldn't (or shouldn't?) replace the coils

Wesmaster - still learning

 

Factory plugs are 7 (heat range) so colder would be 8 or 24 in Denso. The Iridiums and the ones sold by Spoon already have a smaller gap.

I'm not sure if you can use the MSD DIS system on the S2K.

 

wasn't there another thread that discussed this in great detail? I remember lots of talk about Denso iridium plugs.