does any one have a 500MJ and 600MJ M&W PRO DRAG 4? i want one but i was tolled it will give of radio waves that will interfere with with the EMS and Car Audio parts. is this true? and for the Spark Tech square coil on plug whats the Voltage output for them. my cuisine toll me you only need 40,000V to run full methanol on his bike
and its the same for a car.

i don't want to buy the M&W 500jv if it crosses over on other electronics !!! ill buy the M&W 250jv one.
does anyone have some answers with is. why would they make a 500jv or 600jv CDI if they interfere with stuff in the car outside up the road. by dirt bike i had to change the spark plug to it didn't cost over to my dads TV in the house then i rip passed the front yard and house. it was only the plug that was the problem

I don't know the answer to your intial question, but you could always try and build shielding for whatever may be interfered with. Lead plate, copper/foil mesh to make some kind of faraday cage?

Your second post I can't even decipher so idk what to tell you there...

i looked on a other forum and the 500mj is for nitro methane fuel. the 250mj is for 1000's of hp with methanol and high boost! the any thing i don't like is the pin outs on the pro drag 4 250. from battery power input and ground to battery is too small and could start on fire and the 4 negative inputs in to the CDI from the coils are paired together, is going on! the pro drag 4 500 has all 4 channels as all single channels.
and 4x4 power and return battery inputs and out puts. I'm not buying anything the s3 pro drag 4 250 is a drag. it i don't see it working. but the s4 pro drag 4 500 is a working CDI but i think the spark will be too
powerful and it will burn the spark plug with methanol at 45 psi of boost

What is your goal here? Why are you needing this crazy ignition system that sounds like it's on the verge of nitro dragster status?

Most of these style things are going to be drag only, and most of the components on the business end are replaced every run, so worrying about plugs burning down is a moot point.

i don't thing ill be buying anything man. unless i find someone to tell me the truth about spark energy and what i would be happy with and what works. i looked on a fuel tech cdi specs, and there are cdi's that have 600mj with there units that are for high boost and methanol fuel up to 5000hp.
so the pro drag 4 500 is just not for nitro fuel. its for us to use how ever we want.


I'm building a few GSX's , EM!'s with DSM AWD powertrain and CRX's with AWD DSM powertrain.
some 800awhp and some with 1500 or 2000awhp

I see...gl with it then.

i think all i have todo is ground the wire's that got to the coil's i looked it up on M&W website .
but i not sure if spark tech offer it on the wiring harness they have in the kit.
that could be why there told me to go with the 250mj cdi. but ill see if they can do what i want