Rally Cars Slotting Proxy 2023

Kevan · 10th-Mar-23, 07:46 PM

What lap timing app are you using on your phone?

Gpa113 · 10th-Mar-23, 08:03 PM

Excellent job as always Andy Thumbup

Looking forward to the Brighton Ice rink Checkeredflag

Mike174 · 10th-Mar-23, 10:23 PM

Just in case anyone is interested, I'm filling out a total time spreadsheet for the rally. So if it was based on total time taken overall (rather than a points based system) these would be the overall top 5 cars after 3 stages.

1st Roadrunners Fiat 131 Abarth - 155.62
2nd Woodcote Racing Subaru - 157.36
3rd Brumos RSR Porsche 914/6 - 157.45
4th James WV Porsche 914/6 - 158.47
5th Team Alaric Subaru - 158.60

Top 3 Event 1 Cars overall:
Green Star Austin Healey - 167.20 - 15th overall
ManxKev Jaguar XK120 - 172.43 - 21st overall
ManxAndy Jaguar XK120 - 173.64 - 22nd overall

Top 3 Event 2 Cars overall:
Bangers Racing Metro 6r4 - 158.65 - 6th overall
Savage GT BMW M1 - 160.04 - 9th overall
Green Star Racing De Tomasso - 162.22 - 11th overall

Top 3 Event 3 Cars overall:
Roadrunners Fiat 131 - 155.62 - 1st overall
Brumos RSR Porsche 914/6 - 157.45 - 3rd overall
James WV Porsche 914/6 - 158.47 - 4th overall

Top 3 Event 4 Cars overall:
Woodcote Racing Subaru - 157.36 - 2nd overall
Team Alaric Subaru - 158.60 - 5th overall
Scott Sports Renault Clio - 159.48 - 8th overall

Top Class A Car
Team Alaric Subaru - 5th overall

Top Class B Car
Roadrunners Fiat 131 - 1st overall

Top Class C Car
Brumos RSR Porsche 914/6 - 3rd overall

Class D Car:
ManxAndy Jaguar XK120 - 22nd overall

woodcote · 10th-Mar-23, 10:24 PM

(10th-Mar-23, 07:46 PM)Kevan Wrote: What lap timing app are you using on your phone?

LapTracker - Auto Timer running on an ancient iPhone 4S with external battery pack.

Brumos RSR · 11th-Mar-23, 06:27 AM

Woodcoat, thank you for the run, notes and congratulations to the front runners. I think the USA builders would love to know a few secrets to building over the bumps cars. Good luck to all the builders next round.

@Mike174. Don’t forget Team Brumos RSR is leading in deslots with the BMW M1.

Savage GT · 11th-Mar-23, 07:02 AM

Well done to the winners, the bumps really shook things up Bigsmile

Thank you for Hosting Graham and Woodcote Thumbup

Graham · 11th-Mar-23, 09:23 AM

(11th-Mar-23, 06:27 AM)Brumos RSR Wrote: Woodcoat, thank you for the run, notes and congratulations to the front runners. I think the USA builders would love to know a few secrets to building over the bumps cars. Good luck to all the builders next round.

@Mike174. Don’t forget Team Brumos RSR is leading in deslots with the BMW M1.

For Rally track cars my main advice would be:
1) Short wheelbase cars preferably (short & wide)
2) Keep the Motor rpm medium to low (easy for the drivers to manipulate the cars around the tight bends and bumpy or hilly tracks). Normally within the 18-23k rpm range, unless your adding 4WD then 25k rpm maybe necessary.
3) Spring guide suspension is very necessary.
4) Motor mount or rear axle suspension works better than without.
5) More ballast than you would usually use on a flat track surface.
6) Loose front axle helps to stabilise the cars around the uneven cambers of the track.

BAracer · 11th-Mar-23, 09:26 AM

Graham

You also mentioned NOT using a guide with much length in front of the post as they dig in the slot on an up ramp.

Graham · 11th-Mar-23, 09:28 AM

(10th-Mar-23, 10:23 PM)Mike174 Wrote: Just in case anyone is interested, I'm filling out a total time spreadsheet for the rally. So if it was based on total time taken overall (rather than a points based system) these would be the overall top 5 cars after 3 stages.

1st Roadrunners Fiat 131 Abarth - 155.62
2nd Woodcote Racing Subaru - 157.36
3rd Brumos RSR Porsche 914/6 - 157.45
4th James WV Porsche 914/6 - 158.47
5th Team Alaric Subaru - 158.60

Top 3 Event 1 Cars overall:
Green Star Austin Healey - 167.20 - 15th overall
ManxKev Jaguar XK120 - 172.43 - 21st overall
ManxAndy Jaguar XK120 - 173.64 - 22nd overall

Top 3 Event 2 Cars overall:
Bangers Racing Metro 6r4 - 158.65 - 6th overall
Savage GT BMW M1 - 160.04 - 9th overall
Green Star Racing De Tomasso - 162.22 - 11th overall

Top 3 Event 3 Cars overall:
Roadrunners Fiat 131 - 155.62 - 1st overall
Brumos RSR Porsche 914/6 - 157.45 - 3rd overall
James WV Porsche 914/6 - 158.47 - 4th overall

Top 3 Event 4 Cars overall:
Woodcote Racing Subaru - 157.36 - 2nd overall
Team Alaric Subaru - 158.60 - 5th overall
Scott Sports Renault Clio - 159.48 - 8th overall

Top Class A Car
Team Alaric Subaru - 5th overall

Top Class B Car
Roadrunners Fiat 131 - 1st overall

Top Class C Car
Brumos RSR Porsche 914/6 - 3rd overall

Class D Car:
ManxAndy Jaguar XK120 - 22nd overall

A couple of clarifications here on the official results:
They will be added after each Round (not each stage)
The points will be added for the accumulated times after each Round.
The class D has been withdrawn, the one Class D car is now become a Class C car (as it fits in with the ongoing Class definitions)

woodcote · 11th-Mar-23, 10:00 AM

(11th-Mar-23, 06:27 AM)Brumos RSR Wrote: I think the USA builders would love to know a few secrets to building over the bumps cars.

There’s loads of slot rally tips on forums based where slot rallying is (or has been) a big thing - mostly Spain and the UK. I included a quick intro in the fanzine produced for our our WHO Rally-Sprint a couple of years ago: https://slotracer.online/community/showt...8#pid14848

To be honest, the best way to build, test & tweak is to have a rally-style track surface to run the cars on. Something that’s the exact opposite to those lovely flat American wood tracks! Even just a small oval of half Ninco tarmac and half off-road would do the trick - both available in the US. That’s what I use. In the UK we can also grab some old Scalextric classic track for free and then create some elevations, gouge out the surface make rally loops etc.

Here are a few observations/tips: A rough surface constantly unsettles the car - randomly hammering each of the wheels up, down and sideways. Rally layouts often have lots of sharp turns (routed circuits may have tighter turns than a Scalextric R1). Any elevations effectively make the slot shallower and will catch any protuberance (or sharp corner) of the guide that’s forward of the pivot. Slot depth and width can be variable. The rail joins may not be smooth. Different track surfaces have difference grip levels and require a good all-round tyre. A punchy car is always good, but an overpowered car can be undriveable. An established slot rally competition car (eg any Ninco with suspension, SRC slot rally models) is a good starting point.