TOPIC:

The "what pinion do I need for _x_" question seems to be a recurring one - and there's not much information about, especially on what pitch pinions need to be ... I thought if we collated what we do know for sure, it might help.

If you post what you know of pinions - tamiya number reference, car name, number of teeth and pitch, also the Tamiya part number (if you have it) - I'll add it to this post & make a note of where the credit is due

An overview in the form of a spreadsheet and more pinion details can be found in the second post of this thread.

First 150 cars:

58001 Porsche 934
58002 Martini Porsche 935
58003 Tyrell P34
58004 XR311
58005 Lamborghini Countach LP500S
58006 Martini Porsche 936
58007 Cheetah 15t x 0.6mod (thanks eddrick)
58008 Lamborghini Countach LP500CS
58009 Celica LB turbo
58010 Ligier JS9 matra
58011 Ferrari 312
58012 Ligier JS9 matra CS
58013 March 782 BMW 10t + 12t x 0.6mod (thanks eddrick)
58014 Martini Mk.22 Renault
58015 Rough Rider 15T or 20T x 0.6mod (thanks Jonny Retro, eddrick)
58016 Sand Scorcher 15T or 20T x 0.6mod (thanks Jonny Retro, eddrick)
58017 B2B Racing Sidecar
58018 Ralt RT2 Hart 420R
58019 Williams FW07
58020 JPS Lotus 79
58021 Can Am Lola
58022 Datsun 280ZX
58023 Holiday Buggy
58024 Sand Rover
58025 Golf Racing Group 2
58026 Renault 5
58027 Ford F150 Ranger 15T or 20T x 0.6mod (thanks Jonny Retro, eddrick)
58028 Toyota 4X4 pickup (3 speed) 10t x 40dp (Might be wrong but this is closest match) (thanks eddrick)
58029 Blazing Blazer
58030 Honda Formula 02 (CS)
58031 Brabham BT-50 BMW Turbo
58032 Tornado RM. MK. 03
58033 Ford C-100 RM. MK. 04
58034 Super Champ 15T or 20T x 0.6mod (thanks Jonny Retro, eddrick)
58035 Wild Willy M38 15T 0.6 mod (Thanks Jonny Retro)
58036 Audi Quattro 18t x 0.6mod (thanks eddrick)
58037 Opel Ascona 400 Rally
58038 Subaru Brat
58039 Willy's Wheeler
58040 Lancia Rally
58041 The Frog 16T, 18T, 19T depending on spur gear, 0.8 mod metric (Thanks Jonny Retro)
58042 Porsche 956
58043 The Grasshopper 380 motor: 10T/0.8 mod -standard fit is pressed/shrunk onto motor shaft; 540 motor: 18T/0.8 mod; mad brushless: use 10T midnight pumpkin / lunchbox 10T/0.8mod gear & gearbox fittings (Thanks Jonny Retro)
58044 Pajero wheelie 18T 0.8 mod (Thanks Jonny Retro)
58045 The Hornet 18T, 0.8mod; mad brushless motors: use 10T midnight pumpkin / lunchbox 10T/0.8mod pinion & gearbox fittings (Thanks Jonny Retro)
58046 FAV 15T or 18T, not sure on pitch (Thanks Jonny Retro)
58047 Hot Shot 13T, 14T, 15T, 16T or 17T, not sure on pitch (Thanks Jonny Retro)
58048 Bruiser 10t x 0.8mod (thanks eddrick)
58049 Toyota Toms 16T (3510001) or 20T (3510005), not sure on pitch (Thanks Jonny Retro)
58050 Wild One 15T (3510003) or 18T (3510006), not sure on pitch (Thanks Jonny Retro)

58051 Fox 15T (3510003) or 18T (3510006) 0.8 mod (Thanks Jonny Retro)
58052 Newman Porsche 956 RM Mk.7 16T (3510001) or 20T (3510005) (pitch?) (Thanks Jonny Retro, Edou)
58053 Road Wizard 16T (3510001) (pitch?) (Thanks Jonny Retro, Edou)
58054 Super Shot 13T (3510001) or 15T (3510003) 0.8 mod (Thanks Jonny Retro, Edou)
58055 Boomerang 13T (3510001) or 15T (3510003) 0.8 mod (Thanks Jonny Retro, Edou)
58056 Falcon 18T (3510006) 0.8 mod (Thanks Jonny Retro, Edou)
58057 Bigwig 13T (3510001) or 15T (3510003) 0.8 mod (Thanks Jonny Retro, Edou)
58058 Blackfoot 10T 0.8 mod long brass type (3505014) (Thanks Jonny Retro)
58059 Porsche 959 16T (3515008) or 18T (3515006) 0.8mod (Thanks Jonny Retro)
58060 Monster Beetle 10T 0.8 mod long brass type (3505014) (Thanks Jonny Retro)
58061 Striker 18T 0.8 mod (3515006) (Thanks Jonny Retro)
58062 Hotshot II 13T (3515001) or 15T (3515003) 0.8 mod (Thanks Jonny Retro)
58063 Lunchbox 10T 0.8 mod long brass type (3505015) (Thanks Jonny Retro)
58064 Celica Gr.B 16T (3515008) or 18T (3515006) 0.8mod (Thanks Jonny Retro)
58065 Clodbuster 13T (3515001) 0.8 mod (two required) (Thanks Jonny Retro)
58066 Super Sabre 13T (3515001) or 15T (3515003) 0.8 mod (Thanks Jonny Retro)
58067 Thundershot 15T (3515003) 0.8 mod (Thanks Jonny Retro)
58068 Lotus Honda 16T (3510001) or 17T (3510002) (pitch?) (Thanks Jonny Retro)
58069 Williams FW11B Honda F1 16T (3510001) or 17T (3510002) (pitch?) (Thanks Jonny Retro)
58070 Midnight Pumpkin 10T 0.8 mod long brass type (3505015) (Thanks Jonny Retro)
58071 Sonic Fighter 18T 0.8mod (3515006) (Thanks Jonny Retro)
58072 Avante 22T 0.6 mod (3515015) (Thanks Jonny Retro, Edou)
58073 Thunder Dragon 15T 0.8 mod (3515003) (Thanks Edou)
58074 Grasshopper II 10T 0.8 mod (3505010) (Thanks Edou)
58075 Terra Scorcher 15T 0.8mod (3515003) (Thanks Edou)
58076 Vanquish 21T 0.6mod (3515014) (Thanks Edou)
58077 Mud Blaster 10T 0.8 mod (3505014) (Thanks Edou, Jonny Retro)
58078 Fire Dragon 15T 0.8mod (3515003) (Thanks Edou)
58079 Egress 17-20T 0.6mod (3515010-3515013) (Thanks Edou)
58080 Astute 23T 0.6mod (3515016) with 70T spur, kit comes with 70T and 77T spur (thanks eddrick, Edou)
58081 Nissan King Cab 18t 0.6mod (3515011) (thanks eddrick, Edou)
58082 Madcap 23T 0.6 mod (3505018) (Thanks Edou)
58083 Saint Dragon 23T 0.6 mod (3505018) (Thanks Edou)
58084 Ferrari 189 17T 0.6 mod (3515010) (Thanks Edou)
58085 Avante 2001 20T 0.6 mod (3515013) (Thanks Edou)
58086 Hilux Monster Racer 18T 0.6 mod (3515011) (Thanks Edou)
58087 Manta Ray (DF-01) 21T 0.6 mod (3515017) (Thanks Edou)
58088 Mercedes-Benz C11 16T 0.6 mod (3515009) (Thanks Edou)
58089 Bullhead 13T 0.8 mod (3515001) (two required) (Thanks Edou)
58090 Tyrell 019 Ford 17T 0.6 mod (3515010) (Thanks Edou)
58091 Nissan 300ZX IMSA.GTO 14T 0.6 mod (3515018) (Thanks Edou)
58092 Jaguar XJR-12 Daytona Winner 14T 0.6 mod (3515018) (Thanks Edou)
58093 Bear Hawk 15T 0.8 mod (3515003) (Thanks Edou)
58094 Honda NSX 14T 0.6 mod (3515018) (Thanks Edou)
58095 Lotus 102B Judd 17T 0.6 mod (3515010) (Thanks Edou)
58096 Toyota Celica GT-Four Rally (TA01) 21T 0.6 mod (3515017) (Thanks Edou)
58097 Super Astute 20T 0.5 mod (3515019) (Thanks Edou)
58098 Ferrari F40 14T 0.6 mod (3515018) (Thanks Edou)
58099 Nissan Skyline GT-R Nismo (TA01) 21T 0.6 mod (3515017) (Thanks Edou)
58100 Top Force (DF-01) 21T 0.6 mod (3515014) (Thanks Edou)

58101 Bush Devil
58102 Mazda 787B 1991 Le Mans Winner
58103 Jordan 191
58104 McLaren MP4/6 Honda
58105 Williams FW 14
58106 Stadium Blitzer
58107 Top Force Evolution
58108 Mercedes Benz 190E
58109 Nissan R91 CP
58110 Super Blackfoot
58111 Mountaineer
58112 Ford Escort RS
58113 Schnitzer BMW M3 Sport
58114 Footwork FA13 Mugen Honda
58115 Terra Conqueror
58116 Dyna Storm
58117 Lancia Delta HP Integrale
58118 Benetton B192
58119 Toyota Celica GT-Four RC
58120 Axia Skyline GT-R
58121 Idemitsu Motion Mugen
58122 Blitzer Beetle
58123 Dyna Blaster
58124 Super Hornet
58125 Michelin Pilot Cosworth
58126 Lotus 107B
58127 Castrol Civic
58128 Alfa Romeo 155
58129 Castrol Celica 93' Monte-Carlo
58130 Sauber C12
58131 Toyota Toms Levin
58132 Mitsubishi Pajero Metaltop
58133 Jaccs Honda Civic
58134 K-Mart Texaco Lola T93
58135 Calsonic Skyline GT-R
58136 Toyota Prerunner
58137 Blitz Toyota Supra Group N
58138 Renault Clio Williams
58139 AMG Mercedes Benz DTM 2
58140 HKS Skyline GT-R Group A
58141 Jeep Wrangler 16t x 0.6mod (thanks eddrick)
58142 Ferrari 412T1
58143 Ford Mondeo
58144 Nissan 300ZX IMSA GTS
58145 AMG Mercedes DTM Promarkt
58146 Chevy S-10
58147 Castrol Nissan Primera
58148 Rahal-Hogan Lola T94
58149 Rover Mini Cooper
58150 Opel Calibra V6 DTM

Everything else:
58242 Wild Willy 2 - 18T AV (0.6mod), Tamiya part # 50355 - thanks Jonny Retro
58152 ISUZU MU 16t x 0.6mod (thanks eddrick)
58166 ISUZU MU TYPE X 16t x 0.6mod
58280 TXT-1 15t x 0.6(?)mod (mod is guesstimate) (thanks eddrick)
58289 MODENA CHALLENGE (Typical for TL-01) 19t,21t,23t x 0.6mod (thanks eddrick)
58332 - Citroen Xsara WRC Rallye de Monte Carlo 2004 (TT01 chassis) - standard is 19T 0.6mod/AV, Tamiya part number 50355 - thanks Jonny Retro
58336 - The Hornet (re-re) - 18T, 0.8mod; mad brushless: use 10T midnight pumpkin / lunchbox 10T/0.8mod gear & gearbox fittings (Thanks Jonny Retro)
58346 - The Grasshopper (re-re) - 380 motor: 10T/0.8 mod -standard fit is pressed/shrunk onto motor shaft; 540 motor: 18T/0.8 mod; mad brushless: use 10T midnight pumpkin / lunchbox 10T/0.8mod gear & gearbox fittings (Thanks Jonny Retro)
58347 - Lunchbox (re-re) - 10T/0.8 mod specialised fit 17mm long (Thanks Jonny Retro)
58354 - The Frog (re-re) - 16T, 18T, 19T depending on spur gear, 0.8 mod metric (32 dp also fit) - thanks Jonny Retro
58365 - Midnight Pumpkin (re-re/chrome) - 10T/0.8 mod specialised fit 17mm long (Thanks Jonny Retro)
58384 - Subaru Brat (re-re) - 16T, 18T, 19T depending on spur gear, 0.8 mod metric (32 dp also fit) - thanks Jonny Retro
58391 - Hotshot (re-re) - 13T (Tamiya part # 3515001), 15T (Tamiya part # 3515003), 16T, 17T, 0.8mod - thanks Jonny Retro
58470 - Holiday Buggy 2010 (DT-02 chassis) - standard is 10T 0.8mod pressed on 380 motor (Tamiya part # 17435039 or 7435039), 540 motor upgrade uses 17T 0.8mod (tamiya part # 3515005) - thanks Jonny Retro

Notes:

32dp pinions are very close to 0.8mod pinions and may be substituted at your own risk.

48dp and 0.6 mod will mesh fine - but are not the same outer diameter, so are generally _not_ a suitable replacement

Legend

Supplied = pinions supplied by the kit
Mod = metric module of the gears
Number = separate part number as listed in the manual
Spare = spare part number for supplied pinion as listed in the manual (or guide book for the first 50 models)
Alternative = alternative part numbers to replace kit supplied
Range = the known pinions that can possibly be used on the car (not necessarily with kit supplied parts)

When " - " is used, that indicates the first, last and everything in between is included.
The use of " , " means a separation, so "15,17T" would mean 15T and 17T. And 16 is excluded.
Details that are referred to in any of the columns can be found further on in this post.



First list is a work in progress...



Details 1

58035 Wild Willy, 58036 Audi Quattro Rally, 58037 Opel Ascona 400 Rally and 58039 Willy's Wheeler all use the same gearbox. But the Wild Willy has a different gearbox plate and a 15T pinion. The other cars use 18T.

Details 2

The 18T pinion listed in the range (50192, 3515006 or 9805997) is used with a 540 motor.
Other settings (16 or 19T) are possible with the 50205 Frog differential gear set.
Also see second part of details 3.

Details 3

Spare pinions are listed as 50239, 50240 and 50192.
Alternatives for the 18T 0.8 mod pinion are 3515006 and 9805997.

Normal setup is 18T pinion with 50T spur.
High speed setup (on road) is 19T pinion with 49T spur.
Low speed setup (off road) is 16T pinion with 52T spur.

Details 4

Alternative for 16T pinion is 3510001.
Alternative for 17T pinion is 3510002.
Alternative for 20T pinion is 3510005.

Details 5

Alternatives for the 18T 0.8 mod pinion are 3515006, 9805997 or 50192.

Details 6 ("959" chassis)

16T pinion is used with 41T drive gear.
18T (only on flat pavement) with 40T drive gear.

Details 7

The 18T pinion listed in the range (50192, 3515006 or 9805997) is used with a 540 motor.
Also see 58043 Grasshopper in the first post for further details.

Details 8 (DF-01, TA01 and TA02 chassis)

The Skyline speed tuned gears are an optional part with number 53127.

Standard spur gear (74T) - 16T to 21T
Speed tuned (69T) - 21T to 25T
Speed tuned (66T) - 24T or 25T

All 0.6 mod metric (metric module) or "Tamiya AV"

Applies to the following list of cars :

58087 Manta Ray (DF-01)
58096 Toyota Celica GT-Four Rally (TA01)
58099 Nissan Skyline GT-R Nismo (TA01)
58100 Top Force (DF-01)

Overview and a guide to which holes to use in the motor mount :



Details 9 (Group C chassis)

A higher range of pinions (13-20T) can be used for a Group C car when fitting a 63T spur from the F101 chassis.

Part number overview

J&E wrote:

have also collated the part no / teeth / pitch info so far:

3505010 10T 0.8 (58038 Subaru Brat, 58040 Lancia Rally, 58043 Grasshopper, 58074 Grasshopper II)
3505013 10T 0.8 (58048 Toyota 4x4 Pickup Bruiser)
3505014 10T 0.8 long type (58058 Blackfoot, 58060 Monster Beetle, 58077 Mud Blaster)
3505015 10T 0.8 17mm long brass type (58063 Lunchbox, 58070 Midnight Pumpkin)

3505018 23T 0.6 (58082 Madcap and 58083 Saint Dragon - same as 3515016)

3510001 16T 0.6
3510002 17T 0.6
3510003 15T 0.8
3510005 20T 0.6
3510006 18T 0.8

3515001 13T 0.8
3515002 14T 0.8
3515003 15T 0.8
3515004 16T 0.8
3515005 17T 0.8
3515006 18T 0.8 (alternatives are 9805997 and 50192)
3515007 19T 0.8
3515008 16T 0.8 (for "959" chassis, longer than 3515004)

3515009 16T 0.6
3515010 17T 0.6
3515011 18T 0.6
3515012 19T 0.6
3515013 20T 0.6
3515014 21T 0.6
3515015 22T 0.6
3515016 23T 0.6
3515017 21T 0.6 (same as 3515014)
3515018 14T 0.6
3515019 20T 0.5 (!)

9805997 18T 0.8 (for 58346 Grasshopper 540 motor - same as 3515006 and 50192)

0.5 module

53080 18T & 19T Steel pinion gear set
53081 20T & 21T Steel pinion gear set
53082 22T & 23T Steel pinion gear set

0.6 module

50024 15T & 18T (or 19T?) Pinion gear set for RS-540 motor
50090 22T & 24T Special pinion gear set for RS-540 motor
50174 16T & 17T Aluminium pinion gear set
50175 18T & 20T Aluminium pinion gear set

50354 16T & 17T AV Pinion set
50355 18T & 19T AV Pinion set
50356 20T & 21T AV Pinion set
50357 22T & 23T AV Pinion set
50477 24T & 25T AV Pinion set

53063 12T & 13T HP Steel pinion gears
53064 14T & 15T HP Steel pinion gears

0.8 module

50192 18T Subaru Brat 540 pinion gear set (same as 3515006 and 9805997)

50238 13T & 14T Buggy pinion set
50239 15T & 16T Buggy pinion set
50240 17T & 19T Buggy pinion set

84181 17T Pinion (2 pcs.)
84182 19T Pinion (2 pcs.)

How to tell what "pitch" your gear is by measuring ...


Gear pitch will be one of two types imperial (diametral pitch, aka diametrical pitch, dp or simply pitch) - mostly found on US and UK made cars - e.g. Associated & Mardave; or metric - module or mod - mostly found on Japanese made cars - e.e Tamiya.

Dealing with the "imperial" side first, gears will be 32dp, 48 dp or 64dp, to find out which, you need to count the number of teeth, and divide that by the measurement in inches (measured from one land {flat at the bottom of the gap between 2 teeth} across the centre to the opposite land.

For example, I had a middle period RC10 with an 81T spur gear, with a diameter (across the lands) of 1.63" - which gives a pitch, thanks to my not very accurate measurement, of 49.5 - close enough to 48dp.

My Mardave Meteor on the other hand, has a spur gear with 28 teeth, and a diameter of 0.83 inches - which comes out at 33.9 - again taking into account the fact I measured in mm & converted, + rounding = 32dp.


Metric pinions (0.8 mod, 0.6mod, 0.4mod, etc), as found on Tamiya cars though are slightly different - the module is found by dividing the pitch diameter in millimetres by the number of teeth - pitch diameter is measure from one pitch point across the centre to the opposite pitch point: if you look at a gear tooth, it's not a straight edge from the bottom of the tooth to the top - the point where the angle changes is the "pitch point"

A couple of examples:

A pinion taken from a Frog had a pitch diameter was 15mm, divided by 19 teeth equals 0.789, or with rounding, 0.8 mod.

A "mystery" pinion I had in my box of bits has a pitch diameter of 11mm, divided by 18 teeth = 0.61111, or 0.6 mod.

:)b

Added Grasshopper, Hornet, Lunchbox, Pumpkin

Had a good look at this one today :

58073 - Thunder Dragon - 13T to 17T 0.8 mod metric - basic gear 15T.



@JR : 32dp can be added at liberty...
Would it be an idea to also add the Tamiya parts numbers?

Edou wrote:

Had a good look at this one today :

58073 - Thunder Dragon - 13T to 17T 0.8 mod metric - basic gear 15T.



@JR : 32dp can be added at liberty...
Would it be an idea to also add the Tamiya parts numbers?

Thanks Edou, have added a note re 32dp pinions in the first post. Re Tamiya reference numbers, sure, if people have them

Jonny wrote:

Tamiya reference numbers

I'll add them for the cars I've posted. Might save the searcher another step in the process.

Would really like to get to the bottom of the mod/pitch question.
TC members seem to prefer (hard) diametrical pitch pinions. Rather plastic than metal grind in the gearbox.
Tamiya should match better but wear faster. Hence the metal grind.
Using a car intensively will naturally create wear either way. Maintenance would be key...
See if I can find out what the Dutch RC racers' tend to do.

What can make it a bit more confusing is that some brands seem to use both measurements at the same time...
Even for 48dp and 0.6 module.
In that case it's worth figuring out what it actually is - can't be both simultaneously.

Similar contemplations of mine have been merged into this message for the purpose of topic compactness :

I wrote:

Okay, I think I can finally conclude for myself that 32dp is a reasonable substitute for a 0.8 mod pinion.
There are comments on the net advising against it but people having actually used the set up report it should work.
The small disclaimer concerning this couldn't hurt though I think...

Kind of baffling it took me so long to determine the buggy pinions are all 0.8 mod.
Getting side tracked can happen that way. There's a good saying for this in Dutch...
Sometimes you're so deep into the forest, you don't see the trees anymore.

I'll get back on the parts numbers...

I wrote:

Another good alternative for Tamiya 0.8 mod pinions would be the hard steel equivalent by Robinson.
These have a shaft diameter of 5mm though and need an adaptation to 3.2mm - which is also available.

Ondergetekende wrote:

Last update concerning 0.8 mod pinons :

I wrote:

See if I can find out what the Dutch RC racers' tend to do.

I wrote:

Another good alternative for Tamiya 0.8 mod pinions would be the hard steel equivalent by Robinson.
These have a shaft diameter of 5mm though and need an adaptation to 3.2mm - which is also available.

Responses have been both useage of 32dp pinons and the Robinson's 0.8 mod - leaning a bit more towards the last.
The adaptation referred is called a "5mm to 1/8 inch reducer sleeve" on the list here.
Don't know why they use the forward slashes.

Robinson 0.8 module pinions

They also have a line of 32dp 1/8 inch shaft thus direct fit.
Note that even they say on their website that the two measurements are interchangeable.

If you don't mind, and if the list gets more complete, I can add this to the DataBase ?

-Lars

larbut wrote:

If you don't mind, and if the list gets more complete, I can add this to the DataBase ?

-Lars

Fine by me

49490 (?) Mitsubishi Pajero Metaltop Wide (re-re) - standard is 46T 0.6 mod (AV), Tamiya part number 5035458242 Wild Willy 2 - 18T AV (0.6mod), Tamiya part # 50355

58391 - Hotshot (re-re) - 13T (Tamiya part # 3515001), 15T (Tamiya part # 3515003), 16T, 17T, 0.8mod

58332 - Citroen Xsara WRC Rallye de Monte Carlo 2004 (TT01 chassis) - standard is 19T 0.6mod/AV, Tamiya part number 50355

58470 - Holiday Buggy 2010 (DT-02 chassis) - standard is 10T 0.8mod pressed on 380 motor (Tamiya part # 17435039 or 7435039), 540 motor upgrade uses 17T 0.8mod (tamiya part # 3515005)