Lowrance: what are these rules for this Super stock class? I remember you mentioning it before. I would love to be able to run the same stuff at Mike's as we do at OP. We'll at least with one of my electric cars! I'll have to set both of them up, because I know for sure that I'll be running mod in OP.
CraigH: that Pro4 does look sweet. If I didn't have my YokomoSD, the Pro4 would probably be the car I would have.
REBUILDABLE 19T “Super Stock” MOTORS (for all electric except Oval Classes)
5-48: Motors submitted for approval as rebuildable 19T “Super Stock” motors must have the
manufacturer’s name in the form of “XXXX 19” (e.g. EPIC 19, YOK 19, etc.) permanently stamped
into the mounting face of the motor can. “XXXX 19” designates the use of the can for 19T “Super
Stock” class racing. The manufacturer name on the can will make hybrid motors easy to identify.
Any deliberate violation of this rule will be cause to remove all motors of that manufacturer from
the approved motor list for a minimum of one year. All motors submitted for approval shall be
freely commercially available at a retail price of less than $50.
5-49: All ROAR rebuildable 19T “Super Stock” motors may be either bearing- or bushing-type with an endbell that locks the timing at 24 degrees. The space between the magnets must be centered on one set of mounting holes, which will be marked on one side of the can to indicate zero degrees. The brush hoods will be aligned at 90 degrees from this mark, plus up to 24 degrees of timing. Only single piece (2 magnets in a can) or split magnet (4 magnets in a can) ceramic magnets are allowed. No Rare Earth or Cobalt magnets permitted. With single piece magnets the center of each magnet must be 90 degrees from the 0 degree timing mark on the can. Split magnets must have the center of the space between the pairs of magnets 90 degrees from the 0 degree timing mark on the can. Offsetting single piece or split magnets with the intent of increasing motor performance/timing is not allowed. Any deliberate violation of this rule will be cause to remove all motors of that manufacturer from the approved motor list for a minimum of one year.
5-50: Endbell and can must be designed with a method of locking the timing at 24 degrees. This
feature is in addition to any method which secures the endbell to the can (e.g., screws running
through the side of the can). The endbell must incorporate a molded tab that keys into a slot on
the can — locking the timing at 24 degrees. Endbell timing may only be set at 24 degrees. Extra
locking devices (e.g., extra notches in the motor can that allow timing to be changed to 36
degrees or 5 degrees) are not allowed.
5-51: Endbell may have inspection/cooling holes on each side between the negative and positive
terminals. These holes would facilitate inspection of commutator tabs. Endbells must be marked
with manufacturer’s name.
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5-52: The brush configuration can be of any type as long as that configuration appears on a
ROAR approved modified or stock motor.
5-53: Motor can must have inspection holes/slots between magnet tips so that the armature may
be viewed for inspection of armature tag (see 5-57). These holes/slots may be no closer than
.220” from the top or bottom edge of the motor can. View through inspection holes/slots must not
be obstructed by anything covering the holes/slots (e.g. motor label).
5-54: Magnets must be permanently glued to the motor can and may not be removed. No magnet
shims are allowed (e.g., an extra shim that could be added on the end of the magnet or between
the tips to change performance). Flux collector/timing rings are allowed as long as their only
purpose is to secure the endbell to the motor can.
5-55: Rebuildable 19T “Super Stock” motor armatures must be machine-wound using a cross
wrap technique. The legal 19T “Super Stock” wind is a minimum of 1170mm of round 19 AWG
(American Wire Gauge) wire, having a maximum wire diameter (including insulation) of .914mm,
resulting in no less than 19 continuous turns of wire on each pole. There is no tolerance on the
minimum length of wire, nor is there a plus tolerance allowed on the wire diameter.
5-56: Tabs on the armature’s commutator may only be “compression welded”. No after-market
welding or silver brazing will be permitted. All Commutators must be locked to the armature
laminations to prevent timing changes.
5-57: Commutator slots must be aligned with the center of the individual poles. Full stack
armatures made only of magnetizable material. No modifications to the stacks will be allowed
other than the normal drill balance holes. Any modifications to the original OEM
Importer/Manufacturer configurations, including but not limited to, excessive drill
holes/milling/turning to lighten and/or enhance the performance from that of the full stack will not
be allowed. No linear separations of the stack segments will be allowed.
5-58: No split, skewed or tri-rotor armatures will be allowed. Minimum armature stack length is
21.3 mm. Vertical slots will not be allowed on any armature manufactured by the original OEM
Importer after January 1, 2002. Vertical slots on all armatures manufactured prior to January 1,
2002 will not be modified from the original configuration as manufactured by the original OEM
Importer. At no time will any material be removed from the armature, whether hidden or visible,
except those from normal balance holes.
5-59: The crowns on armature pole segments must be symmetrical with a constant radius. They
may not have any steps on them or longitudinal holes through them.
5-60: Armature must be tagged in a way that it is easy to identify both in and out of the motor. The
tag must be permanently affixed to the armature and made of materials that will not self destruct
from the heat of the motor or standard motor cleaning agents. The tag should be positioned
between two poles of the armature and must be a minimum of .500” in length. The tag must be
printed with the OEM manufacturer’s name and “19” (e.g., “EPIC 19”, “YOK 19”, etc.).
5-61: Armature shaft must extend .125” beyond the endbell bushing when motor is assembled.
The overall length of the armature shaft should be 2.775” with .385” extending beyond the end of
the commutator. The commutator end of armature shaft must have a machined “step” that differs
from the standard radius or taper currently used by OEM manufacturers in production of other
stock or modified motors. The step should continue for a minimum of .060” from the end of the
shaft.
5-62: No modifications to the physical construction of the motor can, endbell, or armature will be
permitted (e.g. adding or removing material from the armature stack, changing the brush hoods
from the original manufacturer’s configuration, relocating spring posts). If a motor shows signs of
tampering during post race inspection, the driver will receive no score for that qual or main.
5-63: Epoxy balancing of armatures for rebuildable 19T “Super Stock” motors will not be
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permitted. No more than 2 holes on any 2 poles of the armature are allowed, i.e. no more than
one hole on the third pole.
5-64: The armature, motor can, and endbell of a rebuildable 19T “Super Stock” motor must all be
from the same motor manufacturer and can contain only components from the same model. No
hybrid motors or mixing of parts from different models will be permitted.
Lowrance- Thanks for posting the rules. I see 1170mm of wire for 19t. Do you have the same info for stock (min. length of wire). The ROAR site was slow for me today. Thanks ...John.
What about the tranny class you still gonna run that, it got pretty competative there towards the end. What shoul i run my Lil Nitro Stampede. MOnster truck or something else. I feel bad beatin those over-sized Tmaxxs and Savages(KansasCajun).
I'll run tranny class maybe.. the first few times... then I'd be in 3 classes.. I dunno, it may come down to a tranny/tc 3 class decision for me. I'm trying to get one of the racers from Blue View to come out and do some parking lot racing, if he's there, I'll probably race tranny against him.
Ya KansasCajun, been busy. Getting my Pede ready for some bashing down at the Lake of Ozarks this week. PLus getting ready for the races. Saw the video of your OVER_SIZED truck, pretty nice nothin like a Pede Though. THe Pede will always be Wheelie King. How fast is your Savage, have you ever figured out.
What about a Mini T class thatd be fun i got one get 2 more people ans we got a class.
5-37: All rebuildable stock motor armatures must be wound using a "Mabuchi" cross wrap
technique, and a process that locks the commutator and the armature stacks so that the timing
cannot be changed without disassembling the motor. The legal stock wind is a minimum of 64
inches of round 22 AWG (American Wire Gauge) wire, having a maximum wire diameter
(including insulation) of .67mm, resulting in no less than 27 continuous turns of wire on each pole.
A production tolerance of one turn on one pole only is allowed. There is no tolerance, however, on
the minimum length of wire, nor is there a plus tolerance allowed on the wire diameter.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
It's also interesting to note that the older chameleon motors may not be legal at a Roar event because from what I have heard is that the arms are hemi wrapped as opposed the Roar rules stating the the arm shale be wound using the cross wrap method.I know Trinity has a new arm that is cross lapped to meet he rules but I'm unsure about the other such as the yokomo based motors.I personally do not care cause a half a wrap ain't going to make that big of a difference at the club level.
I'll have to set both of them up, because I know for sure that I'll be running mod in OP.
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