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Post by pceng on Jan 20, 2015 10:40:51 GMT -7
Questions are the quickest way of learning...... no problem with them on this site.
Very cool the kids are doing this..... and congratulations to your daughter on her success. Be pulling for her at the states...... let us know when.
Timing advances or changes can be done on armature by turning comm in relation to stacks. Turning in direction of rotation advances timing. Opposite, retards timing. Comm assembly has tabs on backside that lock into stacks. Usually these will snap off when turning comm. (with enough pressure). Though every now and then they can be almost impossible to turn. Usually there is enough wire to get about 10 or 12 degrees advance.
Advancing will raise rpm, but at the same time reduces torque. Generally small advances will improve times.
............ Peter
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Post by pceng on Jan 20, 2015 11:06:58 GMT -7
Forgot last part....... entry fees , $7.00 covers up to six cars. Fee is for return shipping. Additional $ for more cars required.
Just need to request entry numbers for cars (put on bottem) and send to address given with sign up info. Or sent to you via PM (personal message).
Should also mention , though not being able to register on site due to age. The kids can still take part in racing.
........ Peter
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lewis
Pro Stock
Posts: 220
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Post by lewis on Jan 20, 2015 11:24:32 GMT -7
Thanks Peter for the info. I am gonna try to time a Tyco car tonight and see how it goes. Do you use any type of tools to turn it or can it be done with fingers. Also I'm sure they will love it my daughter has one car we built that will be there (she builds her cars her way with her own money only way she will have it) I'm really proud of her she is super smart she tested at school and scored top 5 scores in the country in 3 subjects. Must have came from her mom.i will definitely let u know the date of state I'm thinking its may. As for there cars do I send them in with my name or do I pm the host for a number for theirs also
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Post by pceng on Jan 20, 2015 11:48:31 GMT -7
I only turn comm's by hand...... small wires break easy. If they won't turn by hand I leave them alone or use for rewinding.
If your daughter , son or both would like to join the racing through site. Just ask for entry numbers for them. Use their names or (handle) so it will be in race reporting.
...... Peter
Second time for edit........ entry requests are done through sign up thread on forum. As is happening now for upcoming race in February.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jan 20, 2015 15:33:37 GMT -7
for inline cars, changing timing ( and I usually only advance timing ) can be done in the following manner.
grip the armature shaft with something like a vice grip. near where the pinion is going to be put is a good idea.
use a pair of regular plyers to gently turn the stacks with the wires on them " backwards" (in the opposite direction of rotation).
as has been said, great care must be taken to avoid snapping any of the wires and minimal advances will result.
so, in effect, you have moved the commutator a little forward of the standard neutral timing position which will allow the armature to produce higher RPMs.
look carefully at a stock armature from a TYCO and you will see that the line separating the commutator portions lines up exactly in the middle of a wire stack.
that is neutral timing.
after you have followed my directions or used another method to advance the timing the line between the commutator segments will be moved in the direction of the rotation of the arm.
this allows the commutator segment for that wire stack to become energized sooner and result in higher total RPMs but less torque, as Peter mentioned.
I would practice this with armatures that are not too all important until you get the feel.
TOMY G-plus chassis have a movable timing bulkhead for the motor brushes that allows neutral, advanced or retarded timing.
retarded timing is usually only used on circuit courses that have a lot of curves and nearly no long straights.
retarding timing allows for more torque and therefore more initial speed, but lower total RPM at maximum speed.
other insights will be forthcoming soon.
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lewis
Pro Stock
Posts: 220
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Post by lewis on Jan 20, 2015 19:31:31 GMT -7
Thank you al.
All you guys are great its super nice to be a part of this community. Yall are great on answering questions for us newbies. Alot of tuning tips and custom build reading material is hard to find
Thanks..lewis
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