2021–NSR GT3 (Q2-2021)

BarkingSpyder BarkingSpyder 6 years ago

This is the head thread of the series discussion for 2021 – NSR GT 3 Series.
This series will be run from April - June 2021.
Series Manager: Mark Lucas / Spyder #21
Rules will be posted on the main page; under "Race Rules" > "2021 Racing Series"
Questions about the rules will be covered in this forum thread.
** Rules will not be duplicated in this forum thread.
NSR Reference: https://www.nsrslot.it/assets/models/modelli.html

Candidate Cars:
Aston Martin Vantage (ASV)
Audi R8 LMS
BMW Z4
Corvete C6R
Corvete C7R
Mercedes AMG GT3
Porsche 997 GT3

8

There is also the Aston Martin Vantage listed as an ASV.

"15812 - There is also the Aston Martin Vantage listed as an ASV"
Thanks for the reminder Marty - that was in my original list, but when I pasted from my draft file it got dropped somehow : (

Were these cars all the SW version rather than the Angle Winder?

Randy,

All of these cars are available in both versions and some are also available with an inline configuration.  You can tell by the part number of the car.  Part numbers that end in AW are angle winder, part numbers that end in SW are side winder and part numbers that end in IL are inline.  The preferred set up is Side Winder or Inline.  The Angle Winder configuration has not been as successful.

The 2016 'Modern GT' series was very open, and included some of the NSR GT-3 cars available at the time.  However, for this 2021 series, limited to the NSR brand, we will vote on what pod configuration to allow (in light of per Marty's observation that angle-winders are typically too problematic.)

What is challenging is that many of the current NSR GT-3 models & liveries are only offered in Angle-winder configs; meaning that to comply with a Side-winder-only rule (or to reduce the problems with the long-can AWs) owners will have to replace pods with either rectangular or triangular SW pods (as per the car's config) and replace the long-cans with Shark-22 or - 25 (a Shark-22k should provide enough 'Umph" in these cars).

Overall this should not be a problem; since many of us have surplus SW Pods and Shark-22/25 motors we can re-use, and or swap/sell with other members who bought a AW GT-3.

Also different from the 2016 Modern-GT series will be more spec for NSR branded parts, hard glass and cockpit, etc.  Of course I will accept comments and we will vote on the final specs. [this Must be settled fairly soon tho since we need to have Rules finalized before end of Feb]

**Randy - you just can't use that 'special' motor from "he who shall not be named" - LOL!

Mark,

The NSR catalog shows all liveried GT cars available in angle winder or side winder.  The issue is more with what the retailers have in stock.  If you like a specific livery on a car don't give up hope of finding it in a side winder as some of the more popular retailers.

[postquote quote=15893]
Marty, my comment was based that on the NSR site, many of the Audi's and C6R Vettes are listed only as AW, (all white-kits are AW).  You are correct - the Merc, C7R, A/M ASV, R8, 997 are listed in both configs.

Vendors with Good Selections of SW:  ~ $90usd
Professor Motor, Electric Dreams, LEB Hobbies; PendleSlot

Limited Selections of any NSR:  @12/18/20
Clover Leaf, SCC, NCP Hobbies, 132Slotcar

Professor Motor has a good supply.  I just ordered the C7 Corvette Mobil 1 Shanghai #64 in memory of my late father-in-law's Mobil Oil consignee plant in Pomona.  Please do not duplicate this number, or if you do, plan on renumbering.  I will probably slap on some BFG tire decals.

What a great choice.  I think you will do well with that car.

NEED MEMBER FEEDBACK - 2021 GT3
1. CHASSIS
Do we wish to restrict chassis to the out-of-the-box, OEM installed chassis - Medium Black (part# is specific to each body style)? Or do we wish to open up to the harder Green and White chassis?

2. POD
Do we wish to restrict pods to the out-of-the-box, OEM installed SW chassis - typically Hard Red NSR-1264?  I see no advantage or rational for using softer pods :O

3. MOTORS
a) If you buy a GT3 with a Sidewinder, the current models ship with a modern Shark-25 (3043, 25k, EVO, 180gm TQ) vs. the older shark-25 (3003, 25k, 176gm TQ).
b) The legacy Shark-22 is not being offered by NSR in their current catalog; altho many vendors still have some in stock; PLUS many of us have them from the 2017-917 series. The replacement is the Shark-21.5 (3041, EVA, 21.9k, 164gmTQ)
c) Do we wish to spec the 3043 as the only motor- to enhance a "level playing field"? or open the spec up to any NSR below 25Krpm, allowing people to use existing spares?

I am up for whatever is selected.  My opinion is to allow stiffer chassis-green or white, any short can NSR motors up to 25K @ 12v and stock motor pod.

Mark

I do not have a lot of experience with the NSRs.  On the chassis I would be OK with stock or harder chassis.

I would prefer the stock red motor pod.

I am not familiar with the various NSR motors.  I will probably use the stock Shark-25 motor myself, but I would not object to allowing any short can NSR motor up to 25K

I would also be in favor of allowing changes to the cars between races.  That is, that we could change motors, tires, gears, and other parts between race days.  In various series in the past we have allowed members to change what car they want to use on any given race day, but I don't think we have had the option as part of the rules.

Russell

I would prefer to allow screw in guides but am happy with any decision.

I am not a fan of the lexan interior as its just one more item we have to purchase and its not a necessity.  It's not like this part is needed for the car to operate on our track.  It's not like the stock interior is contacting the wheels or motor and holding back the performance of the car.  It's purely a luxury item that potentially make a fast car  go slightly faster.

Yes to screw in wood track guides.  Happy New Year for something I know.

What is the consensus among the top car prep and drivers about the chassis, motor pod, and tires.  I just started baking the chassis' last year or 2018, but don't know about the hardness on our track.  Come on guys, give up the good parts numbers.

Aren't these the cars with wheels that have some air chamber ribs?  Did we change those, or modify them, to make tire truing better?

I really hope I am allowed to compete on Saturdays in this class, but I would just like to have a car that drives great when I am by my self at HQ with the sound system blasting.  I was thinking last night that I might bring the amp and guitars to check the acoustics at HQ.  I only play into headphones with youtube wired into the amp, except for rare times my wife is out of the house.  Maybe we could start a house band, The KN95's or Twin Turbos.

Stay Safe, I want to pass each of you at the finish line in 2021.

Randy - No need to bake the NSR chassis.  They are made from a different material and don't take to baking like the Slot It's harder plastic chassis.  The stock chassis seems to work well.  The white one is the next one of choice.  NSR also makes a green super hard chassis but I don't know if there is a big difference between the white and green from a performance standpoint.

I would keep the stock motor pod and run it.  These are typically red in color.

Wheels and tires - I would run the stock ones as they are the SuperGrip tires that seem to work well on our track.  NSR also makes an UltraGrip tire but they are almost too sticky for our track.  The wheels will be the ones with the ribs and the air chamber in the center.  You can run those but you have to make sure you glue the tires to the rims to avoid wheel chatter in the turns.

Goodluck with your set up!

WHEELS - I believe there are some triple-rib wheels, that could be legal.
Also - the donuts used to fill the air-gap in the Thunderslots would work ...
as would O-rings (I have the sizes written down somewhere ...) as we used on the AllSlot Formula cars a few years back.

I'm going to order a long wood track screw mount guide.  I do not think we should go with the lexan cockpit because I like the full cockpit look.  Allow any Shark 25 or less.   I may order the hard chassis if you allow that and the wise tuners use them, but not a new motor pod.

The Professor Motor site calls the deep wood guide NSR NSR4859 Deep Wood Guide with High Performance Screw Mount.  Is the the one you meant as our option instead of 4869 (not listed)?

GUIDE is 4859, correctly stated in the rules.
Rules are current and correct.  If not - let me know :twisted:
.......
If buying a new or replacement GT3, consider adding these items to your cart:

NSR4859 guide (x2 one for GT3, the other for the F-86/89)
Spare Zero-Grips (NSR-5226) 18dx8w -or- (NSR-5201) 17dx8w   Spare Supergrips (NSR-5230) 20dx11w
Brass axle adjustment screws. https://www.professormotor.com/product-p/pmtr1146.htm
A Shark-3041-21.5k (rated at 21.9k) motor if you plan to experiment with motors; https://www.professormotor.com/product-p/nsr3041.htm
24z and 25z INLINE crowns for the F-86/89 - make sure they are for the 3/32 axle (not 2mm) with part #s like nsr6324, nsr6325 https://www.professormotor.com/product-p/nsr6324br.htm

Guys I have listed all the generic parts that are either mandatory (so u can buy spares) or Optional.  Sorry - I will not list ALL model specific parts such as the Hard White chassis or Extra Hard Green chassis - you are smart enough to find and buy those.
Options: Chassis OEM Black/Medium hardness; Recommended: Hard-White or Extra-Hard-Green chassis
Examples:  ASV WH1459, GR1488; C7 WH1492, GR1494; R8 WH1475, GR1486; Z4 WH1463, GR1489 etc.
...
Required: OEM Pinion: 6.45mm-DIA 11z  NSR-6911A (NSR does not have any other 6.45 pinions)
Option: Sidewinder Spurs OEM 17.5mm-DIA 32z NSR-6032;  6030, 6031 - 6037
Open-Choice: Gear-Ratio (OEM: 32/11 = 2.91 therefore rear wheel RPM 7,875 = (25,000 * 11v/12v) / 2.91)
HOT:  31/11 = 2.82 ~ rear wheel RPM 8,127    IFFY 30/11 = 2.73 ~ 8,395

UPDATE:  Any NSR gears are allowed.  If you have an older GT3 car that you can make legal for this series - whatever NSR gears you have in it can be used.  Whatever pinion and spur diameter (OD) combinations you can make work will be OK.
Required: OEM Pinion: 6.45mm-DIA 11z NSR-6911A (NSR does not have any other 6.45 pinions)

NSR CR7 on the rack

Ready for some tuning laps!

That is a beautiful car.  Can't wait for the series to begin.

Do we know how many people will be participating in this series?

NSR GT3 TEAM OWNERS - Please 'register' yourself and car here:
-- Identify the car you plan to enter (livery/#/driver name; or vintage/white-kit/test GT3s with model/color/# etc.  Optionally: add image from your phone, the WWW, of the model you plan to enter.
-- If you are entering a custom livery  an image of the full size car is OK
-- Duplicates Permitted - as usual please change the Number, Wing Color etc.
-- Write name on bottom of car with silver or white Sharpie

here is my car and i will race either proxy or in person.  I will not change the number or anything else except maybe add a BFG decal.  Yes it is sitting in front of Mr. NSR Corvette's pit box.

Looks great Randy; looking forward to you racing 1x1 again!

P.S. If anyone is using the Thunderslot Foam Donuts; the "donut holes" can be trimmed to be used as Wing supports.
-- Cut one edge flat; measure wing strut length (appx 4-5mm); cut bottom flat; trim leading and trailing edges with angular cuts. Keep width to match the top (fattest part) of the struts.
-- After the angles look good; glue to the inside of the wing struts with a small dab of ShoeGoo.
100% Optional

I have just ordered this car:

Russell

Thanks Randy and Russ! Is anyone going to field one of these? ASVs, R8s, Z4s, Mercs, 997s

SETUP NOTES: After 20 minutes of painstakingly adjusting my axle/tire height, when thumbing my front tires with the car on its back, I discovered them rubbing the oddly shaped light buckets. Carefully grinding down all the various bumps from the bucket will be Permitted to resolve the contact; as well as adding a thin washer to the body post; or other innovative ideas. NO, truing the tires some more did not completely remove the contact; and I am running the stock size NSR-ZeroGrips. Note: I did Not have this contact issue with my C6R in 2016.

WEIGHT TUNING NOTES: My C7R Wheelbase is 85mm (axle to axle). Centerline is 42.5mm, appx 2mm forward of the Drop-Arm pivot  (The Centerline is placed over the middle of the gap between the scales)

My C7R Vette weighs 75gm; the textbook weight distribution is between:
Front 40% / 30gm       Rear: 60% / 45gm
Front 45% / 33.75gm  Rear: 55% / 41.25gm

As stock, my car's distribution was:
Front 36% / 27gm        Rear: 64% / 48gm

Adding 5gm to the nose of the pod[1]: car=80gm
Front 40% / 32gm        Rear: 60% / 48gm

NOTES: Each model will have different centerlines; each car will have unique weights. Depending on the location the weight is added, will affect the front/rear balance[1]; weights on the Pan "wings" may be easier to tune than a single weight on the motor pod.

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