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lavenlaar

Gears - Which Is The Best Configuration?

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I dont profess to say that i know much about slots (more a box stock man) but learning,

 

Now my question is, (and maybe more later) but

Getting speed out of any car requires what ? in terms of gearing.... seeing most scx/scaley comes with 9/27 is it a matter of just putting in the larger on the pinion and lower crown???? say 13/23?

 

----sidenote - maybe like the track index, admin can make something like FAQ's for a lot of these newbies and (myself) that wants to start to modify (to beat the likes of , well - everybody :o )

 

Lav

Edited by lavenlaar

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Scaly cars come with 11/36 = 3.27 ratios in their sidewinder configuration and 9/27 = 3.00 in their inline configuration. Still dont know why they have different ratios for essentially the same motor. I have yet to hear a reasonable explanation for this.

 

Generally speaking the lower the ratio number the higher the top speed but at the expense of acceleration. This is only true to a certain extent however. If the motor does not have the available torque to propel the car any faster then lowering the gear ratio will not make the car go any faster. In fact you may actually even lose top end!! You only need look at real cars where 5th gear is an overdrive gear. Quite often 5th gear will produce a lower top speed than 4th gear.

 

Change the ratio by 10% in either direction and note the change in lap times. This will give you a good indication as to which direction to head in.

 

cheers

rick1776


cheers

rick1776

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thanks rick -

 

So what you're saying is effectivly a 13/38 setup for a sidewinder is fast, ratio of 2.83 but inline of 11/24 is OMFG zoooooom ! ratio 2.18 :o

 

So if i drop in a 29k motor , may as well have wings on it ? :D for a straight line run

 

Would be a good idea to get a hold of 1 of each crown & pinion and play around...

 

cheers

lav

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You would need to have very toquey motors to get away with those gear ratios. For the 2.83 ratio something like a Ninco NC5 or the slotit 25K motor or any long can motor like a King should be OK. Must have lots of torque, say 200g.cm. Put a standard scaley motor on with those ratios and it will die in the arse.

 

The 2.18 ratio is starting to stretch it a little. Perhaps the starter motor off of a V6 Camry?

 

cheers

rick1776


cheers

rick1776

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Ok - who has a list of 'torque' v 'power' output per motor?? That's getting bloody hard! :D


Captain's log: We are enroute to some planet whose name I cannot pronounce to do something really complicated that I don't understand.

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Welllllll, since you asked.

 

But it was prepared by a better mind than mine . . . . . dont' t say it . . . .no . .no, I said don't say it . . . .

This is data from Robert Livingston. For those of you who don't know him or his SlotCar News thing, he is a real guru on motor data and a tech brain in the RAA. Wet Coast Racer could give you more detail about him. It is just RPM calculations. There's some data somewhere with torque numbers, or you could just look on the Professor Motor site, they have a lot of manufacturors (sic marketer's) RPM and torque specs on motors there.

 

----------------------------------------------------------------------------------------------------------------------------------

 

Given the interest in basic motor specifications for people wishing to build cars, write rules, create slot car classes, and just look at data, Slot Car News presents this updated list of every motor we could find as of February 9, 2007. We will be updating this list with new test results, and new motors.

 

Motors are listed alphabetically by name of importer or distributor, not the actual manufacturer. Most motors are made by Mabuchi (Fly, Ninco, Scalextric); Sun (Carrera, Slot.It), or others. Vintage motors are in a sub-category under "V", at the end of the list.

 

To distinguish similar types, the color of the motor case, label, or endbell is reported in quotes; for example, “redâ€Â.

 

Generic designation is based on Mabuchi designations, in parentheses:

(FC-130) is the standard slot car motor, sometimes called Mabuchi or S type.

(FK-130) is the Fox type.

(FK-180) is the Boxer or long can type.

(FF) is the slim, long can F1 type

Motors of the same type can usually be interchanged in their specific chassis brackets, although the shaft lengths may not be the same.

 

RPM ratings are no-load at voltage, as reported by the manufacturer or distributor. “Est.†means “estimatedâ€Â. “Tested†means at least one sample was tested with a non-contact tachometer for RPM at the listed voltage, under no load. If a range is given, two or more motors were tested.

 

Torque is reported as “gcm†(gram centimeters) at voltage. These are manufacturer’s data; no tests of torque have yet been done.

 

[RPM/voltage, or gcm/voltage, extrapolated from RPM or torque at another voltage, is reported in brackets]

 

For purposes of comparison, a motor's RPM at no-load can be multiplied by its torque, to obtain a number which represents the motor's maximum power, which is near the mid-range of the RPM, under load at that voltage. The RPM and torque must be at the same voltage.

 

 

Artin (FC-130) tested 22,000-24,903 RPM/12v

 

Auto Art (FC-130) 26,000 RPM/12

 

Carrera E-100 (FC-130) tested 24,577-26,017 RPM/12v

[76 gcm/12v] 94 gcm/14.8v

Carrera E-200 (FC-130) [21,081 RPM/12v] 26,000/14.8v, tested 18,058-20,6340 RPM/12v

[96 gcm/12v] 118 gcm/14.8v

*Carrera 1/32 Tuning (FC-130) 30,000 RPM/12v

Carrera 1/24 “gold†tested 9,500/12v

*Carrera 1/24 "silver" [12,000 RPM/12v] 18,000 RPM/18v; tested 12,100 RPM/12v, 18,675 RPM/18v

*Carrera 1/24 Tuning "silver" [16,000 RPM/12v] 24,000 RPM/18v

 

Cartrix TX 1 13,000 RPM/12v

Cartrix FX Sport 17,000 RPM/12v

Cartrix TX 2 18,600 RPM/12v

Cartrix TX 2.3 Speed [17,200 RPM/12v] 21,500 RPM/15v

Cartrix TX 4 [16,000 RPM/12v] 20,000 RPM/15v

Cartrix TX 5 Genius (FK-180) 22,500 RPM/12v, tested 23,460-25,536 RPM/12v

Cartrix Xperimental (Sun) 20,000 RPM/12v

Cartrix TZ Race 26,000 RPM/12v

Cartrix SH Pro (FK-130) 30,000 RPM/12v, tested 27,267 RPM/12v

 

EJ’s/Plafit Fox (FK-130) tested 26,500 RPM/12v

 

Fly standard P-1 “black stripe†(FC-130) 18,000 RPM/12v, tested 20,408-21,159 RPM/12v

*Fly Rally (FK-180) [15,429 RPM/12v] 18,000 RPM/14v, tested 14,960 RPM/12v

Fly Racing EVO-2 (FK-180) [17,820/12v] 22,000 RPM/14.8v, tested 17,353-17,764 RPM/12v

Fly Truck (FK-180) 18,000 RPM/12v

Fly Racing (FK-130) 26,750 RPM/12v

 

“Green endbell†(FC-130) 24,000 RPM/12v, tested 20,200 RPM/12v

 

JK Falcon II (FK-130) 48,000 RPM/12v

JK Falcon V (FK-130) 48,000+ RPM/12v

 

NINCO NC-1 (FC-130) [12,730 RPM/12v] 15,700 RPM/14.8v, tested 12,858-14,237 RPM/12v

[61 gcm/12v] 75 gcm/14.8v

NINCO NC-2 (FK-180) [14,676 RPM/12v] 18,100 RPM/14.8v, “black label†tested 14,298 RPM/12v, “red label†tested 20,868/14.8v

[213 gcm/12v] 263 gcm/14.8v

NINCO NC-3 (FK-180) [17.108 RPM/12v] 21,100 RPM/14.8v

[264 gcm/12v] 326 gcm/14.8v

NINCO NC-4 [25,135 RPM/12v] 31,000 RPM/14.8v

[183 gcm/12v] 226 gcm/14.8v

NINCO NC-5 (FK-180) [16,216 RPM/12v] 20,000 RPM/14.8v, tested 20,930-21,638 RPM/14.8v

[235 gcm/12v] 290 gcm/14.8v

NINCO NC-6 (FK-180) [19,054 RPM/12v] 23,500 RPM/14.8v, tested 19,189-20,130 RPM/12v

[284 gcm/12v] 350 gcm/14.8v

NINCO NC-7 [15,649 RPM/12v] 19,300 RPM/14.8v, tested 15,630 RPM/12v

[215 gcm/12v] 265 gcm/14.8v

 

*NSR Shark (FC-130) 20,000 RPM/12v

164 gcm/12v

NSR Shark (FC-130) 22,000 RPM/12v

168 gcm/12v

*NSR Shark (FC-130) 25,000 RPM/12v

176 gcm/12v

NSR Shark (FC-130) 30,000 RPM/12v

210 gcm/12v

*NSR Shark (FC-130) 40,000 RPM

210 gcm/12v

*NSR (FK-180) 16,800 RPM/12v

211 gcm/12v

NSR King (FK-180) 21,400 RPM/12v

270 gcm/12v

NSR King (FK-180) 25,000 RPM/12v

270 gcm/12v

NSR King (FK-180) 30,000 RPM/12v

310 gcm/12v

NSR King (FK-180) 38,500 RPM/12v

310 gcm/12v

 

Parma 458 Homeset-Transformer (16D) est. 21,000 RPM/12v.

Parma Death Star, Rotor 16D est. 45,000+ RPM/12v; Death Star tested 38,042 RPM/12v

Parma Super 16D est. 55,000+ RPM/12v

 

Patto's Little Ripper (FK-130) 37,000 RPM/12v

 

Pink-Kar Competi Power Plus 3 (FK-180) [17,432 RPM/12v] 21,500 RPM/14.8v

 

Plafit Fox (FK-130) tested 26,500/12v

Plafit Fox II (FK-130) est. 26,000 RPM/12v

Plafit Cheetah, Cheetah II (FK-130) est. 40,000-48,000 RPM/12v

 

PN Racing Misuwa (FC-130) 27,810 RPM/12v

PN Racing Nasaka (FC-130) 21,660 RPM/12v, 27,450 RPM/14.8v

 

Professor Motor Hot Rod Pro “orange endbell†(FC-130) 26,000 RPM/12v, tested 27,000-28,607 RPM/12v

105 gcm/12v

Professor Motor Fox 10 (FK-130) 25,000 RPM/12v

204 gcm/12v

 

Pro Slot Evo 1 “blue label†(FC-130) 18,000 RPM/12v

Pro Slot Evo 2 “gold label†(FC-130) 21,500 RPM/12v, tested 20,527-22,443 RPM/12v

80 gcm/12v

Pro Slot Evo 3 “red label†(FC-130) 26,000 RPM/12v

100 gcm/12v

Pro Slot Evo 4 (FK-130) 30,000 RPM/12v, tested 26,000/12v

Pro Slot Euro Mk1 (FC-130) 26,100+ RPM/12v

155 gcm/12v

Pro Slot Euro Mk1 (FC-130) 37,000+ RPM/12v

165 gcm/12v

Pro Slot Euro Mk1 (FC-130) 47,000+ RPM/12v

155 gcm /12v

 

Revell-Monogram standard (FC-130) tested 20,800-24,579/12v

Revell-Monogram High Performance (FC-130) tested 26,000 RPM/12v

 

Scale Auto SC01 15,000 RPM/12v

Scale Auto SC02 [12,000/12v] 18,000 RPM/18v

Scale Auto SC04 “red†(FK-180) 29,000 RPM/12v

360 gcm

Scale Auto SC05 “red†(FK-130) 30,000 RPM/12v

Scale Auto/MRRC SC06 “red†(FC-130) 28,000 RPM/12v, tested 29,000-34,268 RPM/12v

180 gcm/12v

Scale Auto SC07 “red†(FC-130) 35,000 RPM/12v

190 gcm

Scale Auto SC08 Tech-1 “silver†(FC-130) 19,900 RPM/12v

80 gcm/12v

Scale Auto SC09 Tech-2 “yellow†(FC-130) 25,000 RPM/12v

90 gcm/12v

Scale Auto SC010 Tech-3 “black†(FC-130) 29,900 RPM/12v

100 gcm

Scale Auto SC011 Tech-1 “silver†(FK-180) 20,000 RPM/12v

180 gcm/12v

Scale Auto SC012 Tech-2 “yellow†(FK-180) 25,000 RPM/12v

200 gcm/12v

Scale Auto SC013 Tech-3 “black†(FK-180) 29,900 RPM/12v

220 gcm/12v

Scale Auto SC014 Tech-1 “silver†(FK-130) 20,000 RPM/12v

220 gcm

Scale Auto SC015 Tech-2 “yellow†(FK-130) 25,000 RPM/12v

230 gcm

Scale Auto SC016 Tech-3 “black†(FK-130) 30,000 RPM/12v

260 gcm

 

Scalextric standard “black stripeâ€Â, Sport (FC-130) 18,000 RPM/12v, tested 20,577-22,300 RPM/12v

Scalextric Protec (FK-130) tested 26,227 RPM/12v

Scalextric Moto Bike (FF) tested 22,400 RPM/12v

Scalextric F1 (FF) tested 22,861 RPM/12v

Scalextric Sport Plus “red†(FF) 20,000 RPM/12v, tested 22,500/12v

Scalextric Sport Plus “green†(FF) 25,000 RPM/12v

Scalextric Sport Plus “black†(FF) 30,000 RPM/12v, tested 31,000 RPM/12v

Scalextric Sport Plus “yellow†(FC-130) 20,000 RPM/12v, tested 23,400 RPM/12v

Scalextric Sport Plus “orange†(FC-130) 25,000 RPM/12v

Scalextric Sport Plus “blue†(FC-130) 30,000 RPM/12v

*Scalextric Mini prototype (FF) 15,000 RPM/10v [18,000 RPM/12v]

 

SCX RX-41, F1 tested 13,500 RPM/12v

SCX RX-42 tested 15,400 RPM/12v

SCX RX-42B est. 20,000 RPM/12v

SCX RX-6 16,500 RPM/12v

SCX Pro Turbo 18,000 RPM/12v, tested 20,100 RPM/12v

SCX Pro Turbo Plus 19,000 RPM/12v, tested 20,340 RPM/12v

SCX RX-62C tested 18,540-20,622 RPM/12v

*SCX Pro Speed prototype 22,000 RPM/12v

 

Slick 7 Mini Motor (FK-130) 40,000+ RPM/12v

 

Slot Car Heroes F1 (FF), tested 36,500 RPM/12v

Slot Car Heroes SS10 (FC-130) 33,000 RPM/12v

94 gcm/12v

 

Slot.It V12/2 “black†(FC-130) 23,000 RPM/12v; tested 19,503-24,607 RPM/12v

83 gcm/12v

*Slot.It V12/1c “silver†(FC-130) 25,000 RPM/12v; tested 25,163 RPM/12v

135 gcm/12v

Slot.It V12/2 “silver†(FC-130) 26,000 RPM/12v

135 gcm/12v

Slot.It V12/2b “silver†(FC-130) 25,000 RPM/12v, tested 23,162-26,063 RPM/12v

122 gcm/12v

Slot.It V12/2 “gold†(FC-130) 29,000 RPM/12v; tested 30,027 RPM/12v

105 gcm/12v

Slot.It V12/2 Boxer 17 (FK-180) 17,000 RPM/12v, 20,967/14.8v

221 gcm/12v, 336 gcm 14.8v

Slot.It V12/2 Boxer 24 (FK-180) 24,000 RPM/12v, 29,600/14.8v; tested 21,274-22,176 RPM/12v

135 gcm/12v, 205 gcm/14.8v

Slot.It V12/3 “orange endbell†(FC-130) 21,500 RPM/12v; tested 22,500 RPM/12v

170 gcm/12v

*Slot.It V12/3 “yellow endbell†(FC-130) 25,000 RPM/12v; tested 28,101 RPM/12v

180 gcm/12v

*Slot.It Boxer/2 “blue†(FK-180) 16,000 RPM/12v

290 gcm/12v

*Slot.It Boxer/2 “red†(FK-180) 20,000 RPM/12v

340 gcm/12v

 

Sloter “black stripe†(FC-130) tested 22,304 RPM/12v

 

Spirit Ferrari 512M, Lola B2K (FC-130) 20,000 RPM/12v

Spirit Reynard, Dallara; earlier production (FC-130) 26,000 RPM/12v, tested 28,101 RPM/12v

Spirit 5X-03 (FK-130) 26,000 RPM/12v

Spirit SX01 (FC-130) 24,000 RPM/12v

*Spirit S3X (FK-180) 24,000 RPM/12v(?), tested 19,725-19,814 RPM/12v, 26,163 RPM/15v

 

TSRF “nickel†(FK-130) tested 35,368-36,400 RPM/12v

 

Vintage Motors:

Cox TTX-150 (FT-16D) 36,000 RPM/12v

Kemtron Bullet (FT-13D) 30,000 RPM/12v, tested 35,928 RPM/12v

50 gcm/12v

Pittman DC-195A (open frame, single magnet) 20,000 RPM/12v

45 gcm/12v

Pittman DC-196A (open frame, single magnet) 21,000 RPM/12v

45 gcm/12v

Pittman DC-196B (open frame, single magnet) 28,000 RPM/12v, tested 26,066 RPM/12v

*Revell Pittman RP-66A (open frame, single magnet) tested 21,680 RPM/12v

Pittman DC-70 (open frame, single magnet) 16,500 RPM/12v

85 gcm/12v

Pittman DC-70-6v (open frame, single magnet) tested 24,675 RPM/12v

Pittman DC-65A (laminated frame, single magnet) 17,000 RPM/12v

75 gcm/12v

*Pittman DC-85A (laminated frame, single magnet) 11,500 RPM/12v

259 gcm/12v

*Pittman DC-85A-6v (laminated frame, single magnet) tested 25,354 RPM/12v

est. 520 gcm/12v

Revell SP40 (FT-13D) 30,000 RPM/12v

50 gcm/12v

Revell SP90 (FT-36D) 28,000 RPM/12v

144 gcm/12v

Russkit 22 (FT-16) 22,500 RPM/12v

62 gcm/12v

Strombecker/Allstate (open frame, single magnet) 8,500 RPM/12v

17 gcm/12v

Strombecker Scuttler 12v (open frame, single magnet) 22,000 RPM/12v

Tyco 901 6v (open frame, single magnet) 30,000 RPM/12v

posted by Robert Livingston @ 4:33 PM


Walks upright Unaided  *  Ties Own Shoelaces  *  Can Mispronounce Own Name In Five Languages  *  Mostly Aims Rattle Cans Away from Self
 My Track Oakland Raceway V2     Our Club  HMBRC     

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again, while perusing, i found this post ..

 

did we get a resolution?

 

as i will need this info in the next month or two for my RAA effort, i have a vested interest .. what gearing might be a good ratio for a low rpm motor suitable for the GT2 class?? (like a stock scx, scaley or carrera, maybe a proslot evo or a cartrix fx) ..

 

i understand about the 10% change while testing, but what''s a good starting point?? 3:1

 

as my contribution - for those who haven't seen it, here's a gear ratio chart i found .. tyre diameter makes a difference too .. the chart gives 'actual distance travelled' based on pinion and crown gear choices, along with tyre size options ..

 

the chart is color coded for SlotIt gears too ..

 

gear ratio chart download .. i hope the link works - it should automatically download a very small PDF file to wherever you download to

 

cheers .. pete canada.gif


.. with only fear and good judgement holding us back ..

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again, while perusing, i found this post ..

 

did we get a resolution?

 

as i will need this info in the next month or two for my RAA effort, i have a vested interest .. what gearing might be a good ratio for a low rpm motor suitable for the GT2 class?? (like a stock scx, scaley or carrera, maybe a proslot evo or a cartrix fx) ..

 

i understand about the 10% change while testing, but what''s a good starting point?? 3:1

 

as my contribution - for those who haven't seen it, here's a gear ratio chart i found .. tyre diameter makes a difference too .. the chart gives 'actual distance travelled' based on pinion and crown gear choices, along with tyre size options ..

 

the chart is color coded for SlotIt gears too ..

 

gear ratio chart download .. i hope the link works - it should automatically download a very small PDF file to wherever you download to

 

cheers .. pete canada.gif

 

The link doesn't work Pete, but if anyone wants one, I have a spreadsheet for ratios.

 

In the end, engine torque, the track size, design and surface all affecting desirable potential top speed, are all factors.

As are, eg for these proxys, you want a durable motor, so maybe boxer motors are favoured ? Sport Racer??

 

I am sure picking a ratio that suits where the car will race, what it will race on, AND making it easy for proxy drivers to "learn" the car, utilise braking and so on, are all factors that go into the skill mix for deciding what ratio to choose.

 

Or in other words, I don't have a clue, pick a number, any number, and I'll let ya know what's in bag No. 3


Walks upright Unaided  *  Ties Own Shoelaces  *  Can Mispronounce Own Name In Five Languages  *  Mostly Aims Rattle Cans Away from Self
 My Track Oakland Raceway V2     Our Club  HMBRC     

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Hello Lav

Personally I never look at gear ratio charts.

My advice is to get a feel for the basics.

To do this you would need to play with a car that has easy gear changeability eg slotit.

 

Changing the pinion a tooth, has a much bigger impact than changing the spur or crown wheel a tooth or two.

 

Do you have a pinion puller/press thing? That can help in this procedure immensely. Do you have a few pinions and axle gears to try?

 

As others have said there are many variables to consider when gearing a particular car. Phil said he likes his car to top out near the end of the straight and I'm in favour of this too.The motor is revving to its max,the motor needs to rev to keep cool.

A too tall geared car with will load the motor and eventually the motor will crap out.

Alternatively a car that is too low geared will rev its guts out but go nowhere fast.

 

 

 

Good luck.....can you feel it?


John Warren

Slotcars are my preferred reality

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Anyone got an update on new motors especially the Ninco's


I can't believe that I wanted to grow up

 

Mount Salt Panorama Track Combined Road and Rally Track built near Salt Pan Creek Padstow - Sydney

 

A quick build rally track

 

2017 WRP Round 11 at Mt Salt Panorama

 

https://i128.photobu...zpss7sqiwfj.jpg

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Robert is still updating his page with latest motors, all the Nincos are there

 

http://slotcarnews.blogspot.com/2007/02/sl...motor-list.html


Walks upright Unaided  *  Ties Own Shoelaces  *  Can Mispronounce Own Name In Five Languages  *  Mostly Aims Rattle Cans Away from Self
 My Track Oakland Raceway V2     Our Club  HMBRC     

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