icemanscold Posted May 3, 2004 Report Share Posted May 3, 2004 I called autometer and they said that they do not make one. All I can find online is digital ones. Does anyone know where I can buy a dial type tach? I have seen them here at silver lake, but always forget to ask where they got them. Quote Link to comment Share on other sites More sharing options...
jeffro189 Posted May 4, 2004 Report Share Posted May 4, 2004 no shit i tried to find one also, but i can only find the digital ones. Quote Link to comment Share on other sites More sharing options...
die_infidel Posted May 4, 2004 Report Share Posted May 4, 2004 whats wrong with the digital ones?? Quote Link to comment Share on other sites More sharing options...
icemanscold Posted May 4, 2004 Author Report Share Posted May 4, 2004 whats wrong with the digital ones?? I have a dial tach on my mustang. Love it, and it is a lot easier to read when your screamin along. Plus it gives you that look of don't mess with me. Quote Link to comment Share on other sites More sharing options...
hotrodbanshee Posted May 4, 2004 Report Share Posted May 4, 2004 I think the digital tachs have a slight delay when reving the motor. Quote Link to comment Share on other sites More sharing options...
jeepman380 Posted May 4, 2004 Report Share Posted May 4, 2004 Why won't a regular dial type tach work? Quote Link to comment Share on other sites More sharing options...
icemanscold Posted May 5, 2004 Author Report Share Posted May 5, 2004 Someone correct me if im wrong, but a two stroke motor has 2 pulses per stroke. It goes by the pulses per stroke of the crank. Which is why a 4-stroke motor tach will not work. Pulses are determined by how many cylinders are in that stroke. There are many more pulses per stroke on a 4-stroke motor, making a standard tack read off the charts when at half throttle, that is when I hooked it up to the shee. Quote Link to comment Share on other sites More sharing options...
Cotton eyed Joe Posted May 5, 2004 Report Share Posted May 5, 2004 Someone correct me if im wrong, but a two stroke motor has 2 pulses per stroke. It goes by the pulses per stroke of the crank. Which is why a 4-stroke motor tach will not work. Pulses are determined by how many cylinders are in that stroke. There are many more pulses per stroke on a 4-stroke motor, making a standard tack read off the charts when at half throttle, that is when I hooked it up to the shee. Well, the Banshee has a spark fire every 180 degrees, like you said, and since there is only one coil to pick up on, it sees it as complete rotations. And, on a 4 stroke, it fires once every 720 degrees. So what your tach was thinking it was seeing was something like 4x the actual rpm. See if you can find a 40,000 rpm tach . Quote Link to comment Share on other sites More sharing options...
Aussie Quad Racer Posted May 5, 2004 Report Share Posted May 5, 2004 ok let me tell you guys something first off lets look at your banshee ignition engine is 2 cylinder 2 stroke with a single coil. so therefore to fire at tdc on compression for every cylinder it must pulse the coil every 180deg. lets look at 4 cylinder 4 stroke with single coil. in 2 crankshaft revolutions all 4 cylinders go through a cycle. thats 4 cycles for 720deg so that = 1 pulse every 180 deg. exactly the same as your banshee. the problem lies in the cdi. cdi pulses positive to the coil where general automotive ignition systems pulse the earth. if you want a tach then i suggest using rz cases with the internal tacho drive, cable and rz tacho. Quote Link to comment Share on other sites More sharing options...
420 RACING Posted May 5, 2004 Report Share Posted May 5, 2004 I HAVE A DIGATRON AVENGER THREE ON A BANSHEE AND A 2000 MACH Z RESPONCE IS VARY FAST. TACH INPUT IS PICKED UP OFF ANY LIGHTING SOURCE. ALSO YOU CAN MONITOR EGT'S, WATER TEMP, AND RPM ALL WITH ONE UNIT. I LOVE IT, CONSIDERING ALWAYS JETTING FOR SEASON CHANGES WINTER/SUMMER. JUST MY 2 CENTS!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
420 RACING Posted May 6, 2004 Report Share Posted May 6, 2004 HELLO, THE SITE IS EXHAUST GAS TECH Quote Link to comment Share on other sites More sharing options...
icemanscold Posted May 7, 2004 Author Report Share Posted May 7, 2004 HELLO, THE SITE IS EXHAUST GAS TECH I do n ot want a digital tach............. Apparently the only way I will get a dial tach is with rz cases. Quote Link to comment Share on other sites More sharing options...
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