17.5 Touring Car Rules
Must have a speed control on
the list here
http://www.roarracing.com/?page_id=737
Batteries
6 cell NIMH maximum battery pack, any pack that is readily available. Example:
the new 4500 and 4600 batteries will be legal once available.
Lipo is legal but must be a hard cased 7.4 volt, 2s , ROAR approved, Lipo (found
here:
http://www.roarracing.com/approvals/lipobattery.php
)
When charging at the track you will need to charge in an Ammo box or lipo bag.
You must run a Lipo smart stop system. This can be built into the ESC or as a
separate unit.
At tech, maximum voltage for lipo is 8.44 volts and maximum temp is 110 degrees
f.
Suspension - 4wd independent
Race length - stock - 6 minutes
Bodies - Any body 2 or 4 door, NO! Gtp bodies (IE Lola, speed, 12 gtp, toyota
gtp, or late model wedge body)
Wings - one rear wing allowed, single plane and must be fastened to the rear
deck
Wheels & Tires - Any 1/10 scale TOURING car tire, no "pan car "
tires
Transmission - 1 speed only (no 2 spds)
Any Roar approved 17.5 brushless motor found here:
http://www.roarracing.com/approvals/brushlessmotors.php
Sensor based motors only
The maximum retail price of a brushless motor shall be $129.00
Rotor Size - 12.2 mm to 12.5 mm. No Tolerances
Magnet Length - 25.0 mm +/- 1.00 mm
The inductance for each slot of the stator shall be 102.00 Micro Henries minimum
and 108.00 Micro Henries maximum, measured with the rotor removed from the
motor.
No hybrid (mixing of parts from approved brushless motors) allowed.
Sensor wires are to wired as follows
Pin #1- Black wire-ground potential
Pin #2- Orange wire-phase C
Pin #3- White wire-phase B
Pin #4- Green wire-phase A
Pin #5- Blue wire-temp control, 10 k Thermistor referenced to ground potential
Pin #6- Red wire-+ 5.0 volts =/- 10%
Weight:
1400 grams / 49.384oz with personal / without house transponder
Minimum Ride Height = 5 mm