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September 14, 2021 at 1:44 PM in reply to: Proposed 2022 Race Series – Monte Carlo Rally ’61-’71 Proposed builder’s series for rally track #16931
Sounds like a good idea – you guys thinking the 12k or 18k Predator?
BTW – I have experimented with the Piranha brand 21.5k motors they sell, and find them to be Reliable, $8 (yes half a Slot.IT price) equal to the Orange-Bells.
PSM21 Piranha 21,500 RPM Motor, Short-Can
"... get on your bad motor scooter and ride!"
Sammy with MontroseRuss – I had to double-check myself to make sure there were tables for both Slot.IT and NSR. And – to your point we have some Great assets; I always stumble across a reference to one of Ary’s How-To videos or one of our Forum posts when searching the interweb for slot-car 411 🙂
"... get on your bad motor scooter and ride!"
Sammy with MontroseThe Pitch of the NSR Pinions, Crowns and Spurs are in the ’48’ range.
http://austinslotcarclub.com/nsr-gears-pitch-table-1/This is quite common in 1-32 scale gears. The tooth shape of the smaller Pinions is like a tulip or a vaulted-arch. As the tooth count increases, the shape morphs to an “I”. On the drive (Crowns, Spurs, Contrate) the tooth shape is mainly a straight sided Triangle. On Offset Crowns the teeth become slanted so they can mesh easier with the pinions non-angled teeth (similar to a 1×1 differential gear).
USELESS TRIVIA
Whereas in the current 1-24 world, “Coarse” gears are 48p, and “Fine” are 72p.
yet – the most popular in current 1-24 land is 64p (medium) since it has a finer-Lash than 48p but does not Shed as fast as 72p.
If the pitch gets “too fine” (e.g. thin “A” shaped spikey teeth with “V” valleys) they can strip very easily by gunning the motor or during a crash that impacts the tire/wheel assembly (e.g. the motor grinds the pinion into the plastic when the wheel stops after hitting another car or the Wall).Hence – in the 2021 NSR Catalog (pg27) you see a 8z(teeth) steel pinion (#7408) with a longer “hub” and 64-pitch rating. That pinion is designed to be soldered onto a 2mm motor shaft and meshed to a 64p Spur (flat or 5%-beveled); mounted in an Angle-winder orientation (pinion on left side; clockwise/righty rotation).
"... get on your bad motor scooter and ride!"
Sammy with MontroseBy 8/21, much of the junk behind E1-A and B had been hauled off (over the last month).
We still have eight tires to haul off."... get on your bad motor scooter and ride!"
Sammy with MontroseBy last weekend, 8/21, much of the junk behind E1-A and B had been hauled off incrementally over the last month.
Leaves and paper trash were swept up into large leaf bags; wood pallets cut into smaller pieces; I have been dumping them at my pools “community” dumpster. Sweeping and blower used to group leaves and trash. SCAT scooped up into the bags and thrown into dumpsters.
Some of the excess wood behind the back door, was cut up into smaller chunks. Some hauled off. The large pallets from behind E1-A was moved to behind our back door for each access to cut up and dispose of.
Apparently, Ary cut up the door cover, pallets and remaining wood.We still have eight tires to haul off.
"... get on your bad motor scooter and ride!"
Sammy with MontroseGEAR RATIO CHOICES WITH THE AVAILABLE CROWNS: 27z 25z 24z
The calculated rear-wheel-RPM – OEM @12volts: OEM ratio 21,400/(27/10)
= 21,400/2.7 > 7,926 **Other Gear Options: @12volts
24/9 = 2.67 > 8,015 **
25/9 = 2.78 > 7,698
// not really usable at 12v
…27/9 = 3.00 > 7,134; …25/10 = 2.50 > 8,560; …24/10 = 2.40 > 8,917@11volts OEM ratio 27/10 = 21,400(11/12)/2.7 = 19,617/2.7 > 7,265
24/10 = 2.40 = 8,174 **
25/10 = 2.50 = 7,847 **
…24/9 = 2.67 > 7,347; …25/9 = 2.78 > 7,056; …27/9 = 3.00 > 6,539SPARES
OEM NSR 6327AL 27 tooth black crown, Aluminum shank
NSR 6324BR – bronze/brass shank
NSR 6325BR
NSR 6327BROEM NSR 7010-10 tooth “easy” pinion. 5.5mm OD
NSR 7009-9 9 tooth
NSR 6809-9 Lightweight
NSR 6809-10 Lightweight"... get on your bad motor scooter and ride!"
Sammy with MontroseREVOSLOT TYRES
Thanks for working with SCC Marty! Great Job!"... get on your bad motor scooter and ride!"
Sammy with MontroseI would like a ruling from the Series Manager. There are now several tire/wheel options from NSR for the F1-86/89.
REAR TIRES:
OEM/original (19.5 X 13) NSR-5284 (Supergrip 25shore?) 5284 (Ultragrip 15~20shore?)
Alternative (19.0 X 13) NSR-5287 (Supergrip) 5288 (Ultragrip)
Both 19.5 and 19 OD fit the NSR F1 wheels with a 13mm Diameter Rim/bead.FRONT TIRES: NSR-5290 (16X8) NSR-5291 (17X10) Zerogrip (fit the same wheel-5020)
WHEELS
REAR OEM NSR-5021 have an “air-system” Rib/Nib. 13mm OD x 10mm width
NSR-5027 – Solid Rib/Nib. 13mm OD x 10mm width
NSR-5022 -“air-system” 13mm OD x 13mm width
NSR-5026 -“air-system” Drilled – 13mm OD x 13mm widthFRONT OEM NSR-5020 solid Rib/Nib. 13mm OD x 8mm width
"... get on your bad motor scooter and ride!"
Sammy with MontroseGRAINY BUT GIVES A TASTE

"... get on your bad motor scooter and ride!"
Sammy with Montrose“Missed it by … “That Much” … ” (maxwell smart)
Of course, after a good first round my tires decided to break their glue, with symptoms such as jack-rabbit hops in the back straight (when the wheels would spin inside the tire, then finally grab the bead and hence flip the car).
After several frustrating experiments with freshly glued and trued tires; it became obvious that for my set-up a trued 19mm outside diameter tire is optimal. Any tires larger than 19.5mm in diameter make the car want to roll like an armadillo in the “button” curve, esp. in Green.A low Center-of-Gravity (CG) is very important in All cars – but especially for these skinny-track cars. Even though the Fly bodies seem to be made of the same plastic as other brands, and seem to be as thin (certainly thinner than Scalextric and most Pioneer/Revell) it seems they are a few grams top-heavy, thus making cornering very challenging (esp. using OEM stock chassis). Another contributor is the shape of most of the coupe bodies, with mass peaking a little back of the center of the wheelbase (encouraging rolls and slides from the JLO shape).
Offset motor pods help, as well as small diameter tires, Lexan cockpits, and 3DP chassis.
"... get on your bad motor scooter and ride!"
Sammy with MontroseSteve – it was a hoot and I would have stayed if I had not been on the road all day! Seemed like a good alternative to the little track a few miles north of New Braunfels (used to be behind a car dealership going Northbound) which had All Day races for many years:
2 or 3 kids classes (micro-sprints, micro-nascars); various adult mini classes; “stock” (powder-puff) classes; “late models”; outlaws; etc.
Plus they had a high-speed Kart club, who raced in various flat track setups in parking lots, and the oval. Plus the Kart club had its own pub in their garage.
"... get on your bad motor scooter and ride!"
Sammy with Montrose[postquote quote=16799]
ERIK – great idea to suggest to the club. After we pick through it we can post on EBay the remaining either in lots or as a single lot (for between $75 to 90).Boogers and shipping would be resp. of the buyer …
"... get on your bad motor scooter and ride!"
Sammy with MontroseRUSS – where did you get the 3DP motor pod with adjustable off-set? Is it easy to adjust?
"... get on your bad motor scooter and ride!"
Sammy with MontroseVIDEO OF USING STOP COLLARS AND TRUNCATED MOTOR SHAFT
“This is basically what Russ described, a nice how-to video from NorCal ” Marc/Datto
"... get on your bad motor scooter and ride!"
Sammy with Montrose1-24 PIT BOX DONATION-5
"... get on your bad motor scooter and ride!"
Sammy with Montrose -
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