I have a 94 Rx7 running the power fc, I am not sure of the model number. I was wondering if anyone knew if the Power FC would be able to run the M&W PRO-14R CDI ignition running in Waste Spark mode, because as I am told, the Power FC will not work in sequential mode. I am ready to buy I just want to be 100% sure that the ignition system would work before I invest in something that expensive. Thank you everyone for any input or feedback on the system.

A secondary question, while running waste spark with a CDI (If it would work) what coils would you suggest? M&W sells CDI coils both 2 post and single post so I could setup both leading and trailing.

Again Thank You,
Robert

 

Yes, the M&W will work with the PFC. I'd use the M&W Mercury coils, four of them. What's the going rate on the 14R?

 

Spark Tech out of Daytona, Florida sells the box for 951 and change.

http://www.sparktechignitions.net/st...roducts_id=127

Whats the part number on the mercury coils and how much do they run?

 

Their part number for the coils is PAK005. You'd need two of those for the full set of four coils. Their price on the coils is pretty steep.

 

Oh ok, I was under the impression that they were a single input, dual output. Where would you look for the coils themselves?

 

The coil I'm referring to is a single input/output coil. http://www.lms-efi.com/catalog/images/CDI%20Coil.jpg

The M&W can be setup as a 3 channel input, 4 channel output to utilize the single coils.

 

Are these coils stronger then stock?

thewird

 

That really can't be answered. The above coils are CDI only. They won't work well at all as an inductive coil. If you want to stay inductive the Mercury IGN-1A coil is very hot and was designed for a 2-stroke engine so it charges very quickly. 90% saturation in around 3ms. It also has a built-in ignitor so it's an easy swap. Only downside is that they are fairly large and cumbersome to mount in a 3rd gen with AC and PS.

 

im thinking in buying the same set up i found a litle better price check it out, just copy and paste this link: http://cgi.ebay.com/ebaymotors/M-W-I...Q5fAccessories

 

That price is cheaper, but you would need the PRO-14R for a 2 rotor. That is the one made for 4 cylinder engines. That does seem like a good price for the PRO-14 though? I haven't really looked around at the price for that to be sure though.

 

if u check the web site out they have the pro 14 r for the same price.

 

I checked their website and didn't find any M&W products at all, do you happen to have a link to the 14R?

I have talked to Sparktech out of Daytona and Ludwig and even though Sparktech had a cheaper box, Ludwig came up cheaper because of their coils, free shipping, and discounts. You can contact Ludwig to find out though, I don't have the price off hand.

 

this is a question iv been wondering.... WHY the pro-14r for the rotary unless your running the stock coil setup IE: 3 coils 1x dual leading 2x trailing

if your running a 4 coil setup through the M&W could you not just use the pro-14 at the cheaper price? 3 wire input 4 coil output

the only difference iv seen in the 14r is the extra diagram for running 3 coils output in a waste fire setup for the leading. maybe ill just have to shoot them an email on this.... unless one of you guys have any answers

z

 

The 14R is a twin-capacitor box. The 14 is not. The 14 is not capable of recharging the single capacitor fast enough to fire both leading and trailing plugs on a given rotor for either wastespark or direct-fire modes. This is the same reason an MSD DIS-4 will not run a two-rotor.

The regular 14 is available at a lower price than is quoted in the Ebay link. And I HIGHLY doubt that anyone is going to sell you a 14R for the same price as that 14, as the dealer price from M&W is about $120 higher for the 14R.

 

thanks ludwig that makes sence being the leading AND trailing, i think i kept forgetting about the trailing when i think about ignitions lol.

z

 

Well Idid a little research and Cludwig has the best price so im getting my unit from him, best deal hands down.

 

So I'm thinking about getting the Pro-14R + 2x PAK005 . What exactly would need to be done in the installation for it to work with the PowerFC and would I need to change anything in the PowerFC to optimize it or make it properly? This should be able to fire 30 psi with a ton of water right

thewird

 

You won't have to do anything with the PFC. Unlike MSD boxes, the M&W boxes are not finicky about dwell time. They are also configured for a falling edge as standard, which is the output signal generated by the PFC. The M&W can be configured for a rising edge if the need arises.

To install, simply connect the three outputs from the ECU that would normally run the stock ignitor to the corresponding inputs of the M&W box. The M&W will have 4 separate outputs, one for each coil, power and ground. That's it.

 

Thats a pretty easy installation. I like.

 

I like as well.

thewird

 

One thing I will caution about installing any CDI is to try to put as much physical separation between everything CDI related and the ECU and it's trigger wires as possible. The M&W is small enough that it makes mounting easier than most systems and, if at all possible, it's nice to put the CDI box on the driver side of the car to keep any potential noise issues in check.

 

The FD igniter is on the drivers side, so that shouldn't be a problem . Thanks.

thewird