Dr. Dynamics

To the benefit of everyone looking for a wasted spark ignition...

I remembered when I had a cavalier Z-24, the ignition module had burned down due to a starter cable slowly rubbing against the coil bolts. When I replaced the module, it had a crank trigger for the module itself and the ECU just gave it the timing. These modules are intelligent enough to determine w/o an ECU, to which coil to fire.

Here's an interesting site:
http://www.kalmaker.com.au/page10.html

Also, some people have been using it for Hot Rodding...

Dr. Dynamics

Ted, I double posted this thread. Can you delete the one with the HTML tag (Not this one)

ehall

I think you can Dr.

testarossa_td

At the top it should say, delete thread...kind of small but it is there.(after clicking edit/delete post I believe-bottom right corner)
Unlock and delete...

Dr. Dynamics

test, if I go to Thread Tools scroll down menu, delete, it says I don't have the privelages.

ehall

go ahead and report the post to the mod. He'll delete it for you.

95Juan

note- tedwright isnt the moderator right now, marc shaw is....or something or someother like that.

juanchovidal

Dr. Probably John or ST know is this is posible.

Marc Shaw

Yeah, or something like that.

Marc

ehall

Hey Marc, are those your secret laser cannons that you use for passing uncooperative 993's, in the avatar?

Dr. Dynamics good job on finding some info on WS. This is just starting to become a popular subject here on the board. It's been around for a long time, in other apps, as well as Tec 3 and some other systems for our cars. It's important to make sure that p[eople know that the Vitesse WS system uses the existing motronic system whereas others do not. In essence that product uses the existing brain in our cars, where others are part of total stand alone management systems. Otherwise they are basically the same concept in final operation.

There have been a few other threads on this topic lately. Anyone coming here might want to do a search for both WS and wasted spark. There is at least one post that you will find that gives a really good link to the differences. If I find it, I'll post it here.

ehall

Here's sort of a laymens description as well. Experts feel free to jump in

The distributor uses ONE coil, which operates on every spark. Using multiple coils can eliminate the distributor: one per cylinder, or one per cylinder pair. The wasted spark method fires two cylinders (pairs) simultaneously, one in the exhaust and one in the firing cycle. There are coils available with two high-tension leads for this purpose. The differences between a distributor system and a multi-coil (MC) system are:

1) Wasted spark firing eliminates the distributor and its associated mechanical faults.

2) Multi-coil (wasted spark) systems have only ONE spark gap, and deliver more spark energy.

3) Multi-coil systems deliver more spark energy, because each coil has more time for re-charging.

95Juan

so what would the advantages be on installing this to a mild/moderately modded 951? about how much would this cost? seeing as how this system (listed here) is a kind of "plug and pay" (from what i understand), and can set itself to fire correctly......what would be the process to install this for a DIY'er? or should we all just wait for Vitesse WS? anyone?

ehall

Hey Juan,

As best I can recall, special tool, ran into problems with the stock ignition at over 350 or 400 hp. A lightly modded car, with a properly functioning stock ignition system, probably has no real need for WS. It is sort of something you may want, but don't need. If you have a highly modded car, like Rolex, or Defastest, or st, then you need a hotter spark at a more precise time in order to manage your fuel/air burning more precisely and effectively.

juanchovidal

ehall, I'am working on it.
I just wan 350-400. no more.
About the WS, I bought all the parts for $95.00 and is going to work.

ehall

Hey cool man. Good luck.