|
|
Post by dave632 on Jan 4, 2015 14:09:19 GMT -7
Thanks for that info, I wondered what the second gear was for. On the ones I have the smaller gear does not reach the pinion so I do not know how it would work.
|
|
|
|
Post by pceng on Jan 5, 2015 8:26:33 GMT -7
Heard the name "Shifter" before , but had no clue of how such worked. Would like to see pic if possible........
Guess for the Vette........... (drum roll , no clue) is 22.0 mph.
|
|
|
|
Post by dave632 on Jan 5, 2015 8:59:55 GMT -7
I have about 10 of those cars with the shifter gearing in them and never knew or could find any information on them until now. None of the pinion gears reach the second, smaller, gear in any of them, don't know why as that is the way they all came. If I moved the pinion to where it would contact both crown gears it would slow the car down. Never tried reverse polarity however. What I might do is reverse the magnets on one and move the pinion to see how well it runs on the smaller gear. It is hard to see in the photo but the pinion does not reach the second gear. The rear axle on the right is a loose one I had.  |
|
|
|
Post by pceng on Jan 5, 2015 9:39:33 GMT -7
Intresting, almost look like centrifugal clutches. Maybe change of polarity changes magnetic field enough to alter position of arm. In turn disengaging from one gear and engaging next ? Looks like a drastic change in number of teeth from one to the other.
|
|
|
|
Post by TGM2054 on Jan 5, 2015 10:06:45 GMT -7
I've got no idea on this one. I'll say 17.3 mph. Just a stab in the dark.
|
|
|
|
Post by dave632 on Jan 5, 2015 10:35:56 GMT -7
Intresting, almost look like centrifugal clutches. Maybe change of polarity changes magnetic field enough to alter position of arm. In turn disengaging from one gear and engaging next ? Looks like a drastic change in number of teeth from one to the other. They appear to be one ways. One engages in one direction and the other in the opposite. I checked to see if there was enough movement in the armature to allow the pinion to move and engage the second gear but there was little movement. Gears are 22 and 16 tooth. |
|
|
|
Post by mike11422 on Jan 5, 2015 15:13:00 GMT -7
19.14 is my guess
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 5, 2015 15:17:54 GMT -7
Intresting, almost look like centrifugal clutches. Maybe change of polarity changes magnetic field enough to alter position of arm. In turn disengaging from one gear and engaging next ? Looks like a drastic change in number of teeth from one to the other. They appear to be one ways. One engages in one direction and the other in the opposite. I checked to see if there was enough movement in the armature to allow the pinion to move and engage the second gear but there was little movement. Gears are 22 and 16 tooth. each has a simple type ratchet device inside that only engages when the pinion turns in a specific direction. the pinion is designed to engage both crowns all the time. likely the previous owner didn't use them on the track/controller specific race set and pushed the pinion on further or cut it down. at one time it was popular to remove the smaller crown to use in a more modern inline set up and glue the gear set up to the axle. |
|
|
|
Post by pceng on Jan 5, 2015 18:25:16 GMT -7
They appear to be one ways. One engages in one direction and the other in the opposite. I checked to see if there was enough movement in the armature to allow the pinion to move and engage the second gear but there was little movement. Gears are 22 and 16 tooth. each has a simple type ratchet device inside that only engages when the pinion turns in a specific direction. the pinion is designed to engage both crowns all the time. likely the previous owner didn't use them on the track/controller specific race set and pushed the pinion on further or cut it down. at one time it was popular to remove the smaller crown to use in a more modern inline set up and glue the gear set up to the axle. If I couldn't find a pinion that works , I'd try that 16t crown. Like , Al mentioned. Sounds like it would be fun shifting gears in a quarter. Just for kicks kinda thing. Cars would have to be slooooow. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jan 5, 2015 18:33:01 GMT -7
I have plans for using two different voltages on my track to essentially give the illusion of shifting gears, like a two speed slip and slide chevy transmission. news at 11
|
|
|
|
Post by dave632 on Jan 5, 2015 19:01:13 GMT -7
When I was younger I thought the only way to go down the track was with a stick shift trans.
When high stall converters came out that changed. Autos are more consistent and unless you are
where you need a slipper clutch and can afford a Lenco, they are the way to go. Many of the guys
running in the Pro Mods with me were using the old Glide. There was nothing left stock except the
design in mine however. Full JW case and innards. They could handle up to about 2000hp then and now
I hear they can handle over 3000. A stock 1.76 glide can handle up to 800 over that and they are
lunch, I know I tried it. My car would generally start to go sideways when it hit second or high when
the juice was on. I got so used to it I would let off the throttle when it hit high. When it would go
straight I would hurt the ET since I was in the habit of letting up.
Would be interesting to see the slot cars shift but it seems the extra drag of the gears slows them down
with the shifter setup.
Gluing the 16 tooth to the shaft might be interesting. When I return your cars Peter I will send you a couple of them to try. I have blown up a few of those ratchet systems so I have some to play with.
|
|
|
|
Post by pceng on Jan 5, 2015 21:11:12 GMT -7
Can polarity switch be wired into control ? I've put on/off switches for brakes in controls. Cross over with DPDT switch ? Any ideas how a pancake would react ? Something like that in a t-jet would be a riot. Could you imagine AW Legends Shifter Drag Strips ........... hey somebody call AW.
........ Peter
|
|
|
|
Post by dave632 on Jan 6, 2015 8:59:10 GMT -7
Here is the MPH for the 57 Vette, 18.23. It's ET was .6963.
Winner of this round is Mike 11422 missing by .91 for 10 points.
Close behind was TGM2054 with a difference of .93 and Pceng
coming in third. This has evolved into a 3 way tie. 
Running totals:
Pceng 26
TGm2054 26
Mike11422 26
Alpink 10
Eagle 7
|
|
|
|
Post by dave632 on Jan 6, 2015 9:16:30 GMT -7
Next car up for the game is a T jet 1960 Vette. Tires are sponge .290x.430, magnets are in the 7 gram pull range, (stock T jet on my tester read 1). 6 ohm arm, copper brushes, 14 tooth pinion gear, shunts, 2 traction magnets, braided pickups.  |
|
|
|
Post by TGM2054 on Jan 6, 2015 9:45:42 GMT -7
Let's go 17.15 mph.
|
|
