Ok well i have been thinking up upgrading my stock igntion a bit by putting better coils, MSD plug wires, better NGK spark plugs, new rotor and new cap. the coils i am thinking of is the MSD Blaster SS or the MSD Blaster 2 Ignition Coils. For sparks plugs i was thinking NGK BR8EIX(for trailing) and the BR7EIX(for the leading). Now my question is what coil is the better one to use and if i should use a different type of plug. oh and the motor is a completly stock 12a motor.


Thanks

 

You won't see any difference in performance from that right now, unless all of your components are shot. Keep your plugs with the 8's all around. You will feel smoother acceleration and slightly better fuel mileage because the big coils will burn more gas off. Once you upgrade to a bigger carb/bigger fuel pump, the coils will really help becasue they will be able to fire off that ritcher mixture. If you want more power, don't get the plugs right now and invest in a free-flowing exhaust system, like one from Racing Beat.

 

sorry for jacking the thred but if you were advance your timing would you get more of a better acceleration with the the better coils

 

An Ignition upgrade on a stock motor will not give you much in terms of power. You can get a little more response and maybe a little power on top? It can increase the ignition tuneup service interval. It is never a bad idea to upgrade your ignition on a rotary.

I think the best ignition setup for a first gen, bang for your buck, is to adapt 2nd gen coils and use a MSD6A or equivalent to fire the leading. If you go to a pick and pull you can get 2nd gen coils for next to nothing. Get a trailing coil bracket, 1 leading coil, and 1 trailing coil. Leading and trailing coils have the same bolt pattern, so if you remove one of the trailing coils from the bracket you can install a leading coil in its place. You will not need the 2nd gen ignitor so don't buy it. Add the MSD per the instructions. Wire the coils up as if they were stock coils. Connect the ignition wire from the leading coil directly to the leading plugs. Leave the trailing ignition connected same as stock, but using a 2nd gen trailing coil. This direct batch fire leading setup gives a good increase in response over stock and eliminates the dependence on the cap and rotor.

 

I replaced my my Distributor Cap, After twenty years there sure is a difference. Now on to the Rotor.

 

Search on 2GCDFIS. You can use just the 2G leading coil and get a wasted spark CD coil ignition upgrade with fairly small mods (meaning just some wire changes). Then theres the transister trick which is under development which uses the 2G leading coils. Its still got some issues that are being worked out. These are the cheapest and best options for now.

Other than that you can go witha 3 coil DLIDFIS setup or maybe use MSDs or go crazy and come up with digital solution that uses a CAS. Its all here and been and/or being discussed.