BansheeJohn Posted March 24, 2009 Report Share Posted March 24, 2009 I'm running a Dynatech programable ignition on mine with the timing set at stock. I was wondering if I should set my timing to plus 4-6 and go from there. My mods are: Pro-Circuit pro series pipes Trinity Stage 4 head w/19cc domes Heavy porting 28mm PWK w/pods 4 mil crank 170psi both cylinders Let me know what you guys think. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 24, 2009 Report Share Posted March 24, 2009 What octane fuel are you running? Quote Link to comment Share on other sites More sharing options...
BansheeJohn Posted March 24, 2009 Author Report Share Posted March 24, 2009 What octane fuel are you running? 110 mixed at 40:1 Quote Link to comment Share on other sites More sharing options...
wesw Posted March 24, 2009 Report Share Posted March 24, 2009 one thing to remember is the dyna doesnt retard timing on the high rpms. so watch your plugs when you push it to the max it might melt your motor with too much timing at high rpms. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 24, 2009 Report Share Posted March 24, 2009 I would run +4 timing with curve 3. Or run the timing stock on the plate and have someone program the advance on curve 3 at +4. Quote Link to comment Share on other sites More sharing options...
BansheeJohn Posted March 24, 2009 Author Report Share Posted March 24, 2009 I would run +4 timing with curve 3. Or run the timing stock on the plate and have someone program the advance on curve 3 at +4. I was thinking of buying the set to program it. I was also thinkning of setting it to +4 Now when I run it at 3 it does not rev out or keep pulling in the power band. When I run it on 2 it seems to be better but still off. I know my carbs are set good. it just seems to lack the top end. When I say I have heavy porting I mean the thing is opened up alot. I don't know who did the port work as it was a surprise to me :cool: when I opened up the motor. I only bought this banshee for some of the parts on it for $800.00. Now I open it up and find a 4mil crank and large porting. It also had 35mm lectron carbs with it, but I sold them rite away. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 24, 2009 Report Share Posted March 24, 2009 The only thing that could be wrong with the cdi is too much timing. But your compression and octane seem to be inline to handle it no problem. Is it popping or backfiring at all? Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted March 24, 2009 Report Share Posted March 24, 2009 im running a dynatech on curve 4 but my banshee is pretty stock tho it still pulls up top. ive been meaning to purchase the curve maker but im pretty happy with it anyway. Quote Link to comment Share on other sites More sharing options...
BansheeJohn Posted March 24, 2009 Author Report Share Posted March 24, 2009 The only thing that could be wrong with the cdi is too much timing. But your compression and octane seem to be inline to handle it no problem. Is it popping or backfiring at all? No it is not popping or back firing. I'm going to try these new Pro Design billet intakes w/34mm tmx carbs. Maybe with the 28's I'm starving it for air/fuel with the porting. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 24, 2009 Report Share Posted March 24, 2009 I doubt it, it will still run, it just wont pull as far up top. If you were starving it for fuel the plugs would either look lean, or the bike would cut out. Quote Link to comment Share on other sites More sharing options...
BansheeJohn Posted March 24, 2009 Author Report Share Posted March 24, 2009 I doubt it, it will still run, it just wont pull as far up top. If you were starving it for fuel the plugs would either look lean, or the bike would cut out. So you thinking maybe something back on the line of timing? I noticed on the Dynatech chart, all three curves will go to a peak and fall off, but the 3rd one will hold the higher rpm for longer. Do you think I should set my adjustable timing plate to 4 degrees? Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 24, 2009 Report Share Posted March 24, 2009 I dont think its the cdi, I think you have something else wrong. We have never had issue like that with any of the bikes we run em on. My bikes 185 psi compression, with 110 octane fuel, and 4 degrees of advance. Do you have a better description of what your talking about with the top end issue? Quote Link to comment Share on other sites More sharing options...
BansheeJohn Posted March 24, 2009 Author Report Share Posted March 24, 2009 I dont think its the cdi, I think you have something else wrong. We have never had issue like that with any of the bikes we run em on. My bikes 185 psi compression, with 110 octane fuel, and 4 degrees of advance. Do you have a better description of what your talking about with the top end issue? But you think If I set my adjustable timing plate to +4 and then run the curves I would notice a change? It is hard to describe the symptom over a computer. When I play around with all the curves for the box I notice the difference. But they all feel like they are stopping too soon. Or it falls flat. Quote Link to comment Share on other sites More sharing options...
Snopczynski Posted March 25, 2009 Report Share Posted March 25, 2009 But you think If I set my adjustable timing plate to +4 and then run the curves I would notice a change? It is hard to describe the symptom over a computer. When I play around with all the curves for the box I notice the difference. But they all feel like they are stopping too soon. Or it falls flat. Yes. If you run curve 4 though with no timing advance, that same as stock. If you advance the plate +4 and rn curve 4, then thats stock cdi timing with +4 of advance. Quote Link to comment Share on other sites More sharing options...
dirtydownunder Posted March 26, 2009 Report Share Posted March 26, 2009 ah just had a look, im on curve three not four. Quote Link to comment Share on other sites More sharing options...
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