I think I'm gonna add an MSD. Which model is best for rotary? Do I need a special model or will a 6AL work?
Thanks! https://www.nopistons.com/forums/pub...IR#>/bigok.gif |
Maybe people have told you already but the stockers are plenty powerful for your application. Solid grounds help a lot for the power of the spark and I was even thinking of sending new power wires to mine.
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If you're bent on getting an MSD CDI box, you might want to look into the 6BTM... it has a built in adjustable timing retard unit for when you turn the boost up... not sure how it would hook up to a rotary though
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i have three 6a's in my car
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100% WASTE OF MONEY, PLUS YOU NEED AT LEAST 2 BOXES MAYBE 3 TO RUN IT PROPERLY . TRAILING AND LEADING. THE STOCK IGNITION IS PLENT POWERFUL. I HEARD THAT JACOBS SYTEMS ARE BETTER FOR WHAT ITS WORTH FOR ROTARTY ENGINES. I WOULD NOT EVEN BOTHER. BUY A GOOD MOD. https://www.nopistons.com/forums/pub...DIR#>/wink.png
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just get 1 msd for the leading, its more than you need
mike |
negative it won't do **** for you, I have done it https://www.nopistons.com/forums/pub...IR#>/angry.png
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Originally Posted by 87BADASST2' date='Jul 23 2003, 11:08 AM
negative it won't do **** for you, I have done it https://www.nopistons.com/forums/pub...IR#>/angry.png
mike |
now I just hear this as roumor, so I can't verify it at all.
I read somewhere that putting a 6al on one of the coils would fire it twice per exposer (because the front and rear rotors fire at different times) and that would cause a more complete combustion of the a/f mixture left in the corner of the housing by the trailing apex seal. This was causing the emissions of the cars to go down. Maybe this was only true on GSL-SE's, but it might work. Anyone heard of this? Also the electronic rev limiter is GREAT, much better then a fuel cut. |
appearentley we have people who like to just guess if it will work just using one box. but for the people who have actually installed a MSD 6 AL box and does no differnece from the stock ignitors. I'm telling you you would have to run 2-3 boxes for it to be functional. You just can't run 1 box for the leading and forget about he trailing https://www.nopistons.com/forums/pub...1047683664.gif
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Originally Posted by 87BADASST2' date='Jul 23 2003, 03:26 PM
appearentley we have people who like to just guess if it will work just using one box. but for the people who have actually installed a MSD 6 AL box and does no differnece from the stock ignitors. I'm telling you you would have to run 2-3 boxes for it to be functional. You just can't run 1 box for the leading and forget about he trailing https://www.nopistons.com/forums/pub...1047683664.gif
I wouldn't.. but you can. One box for the leading coils and one box for each trailing coil if you wanted everything hooked up. |
don't get the 6al or the btm one, you can't use the funtions of either on a rotary. stick to the basic (and cheaper) 6a. or look at a crane hi 6.
the jacops is a rip off. 2 or 3x more $ then the 6a and no different. one on the leading works good. if you are reaching 500+ hp you might want 2 more on the trailings. I have a crane hi 6 on mine |
Originally Posted by Scott 89t2' date='Jul 24 2003, 05:57 AM
don't get the 6al or the btm one, you can't use the funtions of either on a rotary. stick to the basic (and cheaper) 6a. or look at a crane hi 6.
the jacops is a rip off. 2 or 3x more $ then the 6a and no different. one on the leading works good. if you are reaching 500+ hp you might want 2 more on the trailings. I have a crane hi 6 on mine Thanks for the informed advice. It does seem as though there are two schools of thought on this issue. Some say the stock system is fine, others say you can pick up some power and efficiency by adding MSD. To me it seems pretty obvious that multiple sparks would burn the mixture better, especially since the rotary's combustion chamber is so elongated. Sounds like we need to do some dyno runs, before and after. |
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