shovelhead Posted January 30, 2008 Report Posted January 30, 2008 Can someone tell me if a adj. Timing plate is necessary or advised if I am now using The Dyna ign. system with the 4 diff. settings? How if at all does this ign. adj. the timing for you lastely, anyone actually know how much more rev limit the dyna allows? Thanks Quote
dajogejr Posted January 30, 2008 Report Posted January 30, 2008 As someone that actually has used both...let me tell you.... The plate is a static adjument across the whole RPM spread. 4 degrees advance at 2000 RPM is the same as 4 degrees advance at 10,000 RPM. Keep in mind...the stock CDI advances it to...so it's NOT 4 degrees total advance. The Dyna, with it's 4 preprogrammed curves already advances it 4 degrees at lower RPMS. From there, each curve varies on rpm advance and duration.... two strokes do not have RPM limiters. Ignition does not control that. Pipes, porting, intake, compression...and a few other factors figure in for how far an engine can rev. Two strokes don't have the limiting factors like four strokes, most notably the valve train..... I would do one of two things. Get rid of the dyna and only use the plate. Or...get rid of the plate and only use the DYNA IF you have the time/money and means to get to a dyno and program curves that best suit your engine and particular riding style(s) Quote
shovelhead Posted January 30, 2008 Author Report Posted January 30, 2008 As someone that actually has used both...let me tell you.... The plate is a static adjument across the whole RPM spread. 4 degrees advance at 2000 RPM is the same as 4 degrees advance at 10,000 RPM. Keep in mind...the stock CDI advances it to...so it's NOT 4 degrees total advance. The Dyna, with it's 4 preprogrammed curves already advances it 4 degrees at lower RPMS. From there, each curve varies on rpm advance and duration.... two strokes do not have RPM limiters. Ignition does not control that. Pipes, porting, intake, compression...and a few other factors figure in for how far an engine can rev. Two strokes don't have the limiting factors like four strokes, most notably the valve train..... I would do one of two things. Get rid of the dyna and only use the plate. Or...get rid of the plate and only use the DYNA IF you have the time/money and means to get to a dyno and program curves that best suit your engine and particular riding style(s) Wow, that was an excellant reply! Thank you... Quote
runger Posted January 31, 2008 Report Posted January 31, 2008 Can someone tell me if a adj. Timing plate is necessary or advised if I am now using The Dyna ign. system with the 4 diff. settings? How if at all does this ign. adj. the timing for you lastely, anyone actually know how much more rev limit the dyna allows? Thanks No the timing plate isnt needed because the ign puts it 4 degrees and i just bought a nice adj timing plate and i was screwed you couldnt adjust it where it needed to be Quote
CombatTalon2 Posted February 1, 2008 Report Posted February 1, 2008 (edited) As someone that actually has used both...let me tell you.... The plate is a static adjument across the whole RPM spread. 4 degrees advance at 2000 RPM is the same as 4 degrees advance at 10,000 RPM. Keep in mind...the stock CDI advances it to...so it's NOT 4 degrees total advance. The Dyna, with it's 4 preprogrammed curves already advances it 4 degrees at lower RPMS. From there, each curve varies on rpm advance and duration.... two strokes do not have RPM limiters. Ignition does not control that. Pipes, porting, intake, compression...and a few other factors figure in for how far an engine can rev. Two strokes don't have the limiting factors like four strokes, most notably the valve train..... I would do one of two things. Get rid of the dyna and only use the plate. Or...get rid of the plate and only use the DYNA IF you have the time/money and means to get to a dyno and program curves that best suit your engine and particular riding style(s) My Dyna info says that curve 4 is the same as the stock curve on the stock ingnition. So you could run your timing plate with your dyna, you just need to be sure you are on curve 4, or disconnect the switch from the module I believe that sets the dyna to curve 4 (stock). You had me scared that i was running a 9 degree advance there for a minute. Edited February 1, 2008 by CombatTalon2 Quote
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