An outright, heads-up 1/24 vs. HO scale unlimited drag race under the same power and track conditions would be easily doable.
The car rules are completely open with any accepted width or wheelbase that would be scale representative of any real car in that scale.
Special purpose electric motor parts from any source is acceptable - must fit within confines of a car that would be scale representative in that scale.
Specal purpose bodies from any source are acceptable - need not resemble real cars.
May use any aerodynamic assist components that fit within a reasonable outermost perimeter of any real car representative in that scale.
It could be done on a 1/24 drag strip (to ensure identical track conditions).
Must specify steel or non-magnetic braid; car construction and configuration will follow (any configuration of magnets allowed for traction assist).
Any tire and glue combination from any source is acceptable.
Any wheel/tire used must roll freely about a basically horizontal axis and must support all chassis parts off of road surface during entire race run.*
AWD and multiple motors are permissible, maximum 2 total axles driven by any means by electric motors.
A single rear axle (aft of the two driven axles) may be used as wheelie bars, minimum one wheel of wheelie bars to contact the road surface.
Outer contacting surfaces of guide pin(s) pin or flag(s) below road surface into slot must be plastic material (commercial guides preferred).*
Any motor controller will be acceptable, any combination of manual and/or completely automatic/sensor driven allowed.
*Rules intended to protect track road and slot features from permanent damage.
Decide which scale constitutes HO - I believe it would be 1/87 +/- 4%; 1/24 to 1/25 is an accepted limit.
It would be interesting to see where ground traction electric motors would go if there were no limits - "Thingies" for sure!
Keep THAT in the slot,
AJ
in the 90's I had 1/24 and ho (1/64) side by side with a Trik Trax Drag Trax timing system and we infrequebtly switched one lane to compare unlimited type cars of each scale. the HO cars had lower ETs due to the shorter distance (20'7.5") and, incredibly, similar MPH.
it has been my experience in slot drag racing that a really good ET will not always result in high MPH. and that a high MPH is a result of tire spin and a higher ET results. there have been near perfect runs in both scales that netted ideal results in both categories though.
I am somewhat amazed at the reports of ETs in HO on a 17'6" track in the .170s and easliy 100 MPH.
I have run 1/24 scale funny cars over 100MPH, however I forget the ETs and I haven't played with them for over a decade.
I recall something in the .300 from then, but I know they are faster now.
comparing scales is not as easy as all that.many factors, even in straight line drag racing separate the abilities of each size.
and power is always disputable. I ran 1/24 scale at 16 volts with a charger on for added amps and I currently run HOs at 24 volts from auto batteries.
apples and oranges in most scenarios.
gearing on an HO car would never allow it to be competitive on a 55' track, it would max out way too soon. the mere tire sizes available for 1/24 scale and the multitude of gearing combinations allow much higher wind outs by those motors.
most HO cars are run on solid silicone slip on tires or silicone impregnated foam tires so the need for traction glue is negated although do know a group that runs gasket adhesive or somesuch for traction even with those tires.
it is still fun to discuss the merits of side by side differing scale racing though.
