Thunder Country Grand Prix

YOU CAN RELAX, EVERYONE GETS IN!

Rules & restrictions

• This is a Grand Touring class race (i.e. GT1, GT2, GT3, GT4, and GTR models). Clarification on what is allowed and what isn't allowed plus a few good examples are shown in Figure 1 below.
• What about a fantasy or concept GT car? Please send me a picture. I will consider it.
• Wheelbase: IMPORTANT! Must be less than 42mm. See Figure 2 below.
• Ground clearance: This course includes a stadium turn (4-lane banked turn in Figure 3). The bottom lane requires a ground clearance as shown in Figure 4 below.  PLEASE NOTE: You are allowed to shave off a plastic scoop or grind metal off the body to meet the clearance requirement.
• Eligible race numbers between 0 and 999 (numbers may begin with 0 or contain one letter, i.e. 00, 08, 007, 3B, 6x).
• NO Hand or Pen painting: Hand painted or pen painted cars are strictly prohibited. Decal of your team logo is encouraged. Painting schemes in the spirit of GT racing is encouraged.
• Designs and decals must be family friendly.
• Modified entries only: Using the stock paint job is allowed. Window tinting or window painting is also allowed. I prefer that you paint/tint the inside of the windows rather than the outside.
• Weight limit: 60g (+1g grace)
• Size limit: Must fit on standard orange track. Please note, height limit is only 1.5”, but I don’t think you’ll find a GT class car near that height.
• Wheels and Axles: Black plastic wheels only. FTE/NPA allowed. Smoothing the wheels with light sanding is allowed, but wheel coning and wheel well hogging are not allowed.
• Lubrication: Graphite and silicone (dried) are allowed. Very small amounts of a wet lubricant are allowed but you will be DQ’d if it’s dripping off the axle.
• Limit 1 entry per person. More than one family member may race, but only if they build their own car and have their own race number.

Figure 1

Figure 2

Figure 3

Figure 4

Dates & deadlines

All entries MUST BE RECEIVED by Saturday, May 2, 2026.

How to enter

Send your entries to:
Gravity Throttle Racing
c/o Mark Hoyle
2420 N. Longwood Circle
Wichita, KS. 67226

ENTRY FEE: $10

INTERNATIONAL RACERS:
If you want your entry back, please send $20 USD ($10 entry + $10 for higher shipping cost).

PLEASE INCLUDE THE STANDARD RACING SLIP:
Include a Race Entry ID slip with your entry

Track

BRAND NEW TRACK!

Race format and scoring

TIME TRIALS will determine who qualifies to race. The top 32 qualify for A-CLASS, the next 16 qualify for B-CLASS. All other entries will be mailed back. Sorry. Depending on the number of entries, I may not film or post the Time Trials.

Penalties/DNF

If a car fails to meet any of the restrictions listed above, the car will not qualify to race but will still have an opportunity to post a time if there are no physical limitations.
Cars that fail to run or fit on the track will not race.
If a car arrives broken or breaks during a race, the host will attempt to repair it. No guarantees on Billy’s ability to fix your car.

Prizes

Top three racers from each class will receive a trophy!
All competitors that qualify to race receive a gift car for a future tournament at the Thunder Country Grand Prix. International racers who elected not to pay $10 extra for return shipping still qualify for a trophy (and will get their car back!).

FINAL WORD OF ADVICE

Thunder Country Grand Prix is about speed more than my other tracks. I encourage you to read and practice build techniques that will make you faster. Please read this linked article.
SECRET SAUCE
If I were competing in this tournament today, I probably wouldn’t even qualify. How sad. I must improve to go against builders like R-Lo, Numbskull and BLR. Just sayin’!
Therefore, I strongly recommend you build multiple cars of the same make/model to determine which one is the fastest BEFORE you attach the body and ship it over.

ANCIENT DIECAST PROVERB:
Turtle builder will become rabbit racer!

RACE NUMBERS TAKEN:
0 - ZerohpRacing [RECEIVED]
00 - IBC [RECEIVED]
1 - Gman [RECEIVED]
1x - ChexMix97 [RECEIVED]
2 - RancidCactus [RECEIVED]
3 - Mako Racing [RECEIVED]
3B - Cheap Thrills Racing
03 - CashMoneyBoys [RECEIVED]
4 - EnZed [RECEIVED]
4t - Willie G [RECEIVED]
h4 - 407DiecastKings [RECEIVED]
5 - SeCret SauCe [RECEIVED]
6 - Sam Haul [RECEIVED]
7 - Craigster Sr. [RECEIVED]
07 - HotRodsngravy [RECEIVED]
007 - MCR (Wes Coasin) [RECEIVED]
8 - RB_1983
08 - Milestone [RECEIVED]
9 - Redline Salvage Inc [RECEIVED]
09 - ICT-DRL (Mad Mullet) [RECEIVED]
10 - OMS [RECEIVED]
11 - Stoopid Fish [RECEIVED]
11x - WallyChamp73 [RECEIVED]
12 - White Wing [RECEIVED]
13 - Mr. Darq [RECEIVED]
x13 - Road Rage Racing [RECEIVED]
14 - MDG Racing [RECEIVED]
14 - HotRodCustoms (Rodney) [RECEIVED]
15 - Matt Motors (silas is not here) [RECEIVED]
17 - DXP Racing
18 - Wizard of Oz [RECEIVED]
19 - Scratch [RECEIVED]
20 - EP [RECEIVED]
D20 - D20_Diecast [RECEIVED]
21 - ABC Allred [RECEIVED]
21x - Sneaky Bob [RECEIVED]
22 - Tortoiseking [RECEIVED]
23 - Last and Furious [RECEIVED]
24 - Maniac Motorsports (Isaiah) [RECEIVED]
25 - RC Attucks [RECEIVED]
26 - Send It Racing [RECEIVED]
27 - HSL Motorsports
28 - G-Force Racing [RECEIVED]
28x - FPD Racing [RECEIVED]
29 - Candlepin [RECEIVED]
30 - AFK Racing [RECEIVED]
31 - Rabid Badger [RECEIVED]
32 - BLR
33 - Oregon Outcast [RECEIVED]
34 - Feral MODS [RECEIVED]
35 - Herb Parker [RECEIVED]
36 - Bolo Brown [RECEIVED]
37 - Crazy Canuck [RECEIVED]
38 - SandroJimenez
42 - Moparius [RECEIVED]
42x - Iceman [RECEIVED]
43 - Shubaby [RECEIVED]
44 - Essex Boys [RECEIVED]
45 - Joyful Noise Racing [RECEIVED]
46 - Chipped Paint 
48 - Travelers League Racing
49 - Rush Racing League [RECEIVED]
50 - Irons Diecast
51 - Lone Wolf [RECEIVED]
52 - Puff's Racing [RECEIVED]
53 - Numbskull [RECEIVED]
54 - Billy's Midway [RECEIVED]
55 - SST Diecast [RECEIVED]
58 - ParBoo [RECEIVED]
59 - Racel [RECEIVED]
60 - Spirit of 64 [RECEIVED]
U62 - Skid Marks Racing [RECEIVED]
63 - Aces High Racing [RECEIVED]
64 - Raptor [RECEIVED]
65 - Kingjester [RECEIVED]
67 - E-67 [RECEIVED]
68 - Comicazi [RECEIVED]
69 - R-Lo [RECEIVED]
71 - Operation Diecast [RECEIVED]
73 - Chase Family [RECEIVED]
76 - Polo Racing [RECEIVED]
77 - Ooze Racing (carrot) [RECEIVED]
077 - Mini Mile Raceway (Roy Costa) [RECEIVED]
R77 - Mini Mile Raceway (Roynaldo) [RECEIVED]
78 - Belcast Family [RECEIVED]
79 - Ra Sungod [RECEIVED]
80 - N Deavers [RECEIVED]
81 - Flip [RECEIVED]
82 - Zizzer Prime
83 - Justin Thyme [RECEIVED]
85 - Ooze Racing (Slimy Jim) [RECEIVED]
86 - Variat Skunkworks [RECEIVED]
87 - RamRaid [RECEIVED]
88 - BrockLanders
90 - Donnagan Diesel
91 - JPerrier [RECEIVED]
92 - Team 92 Racing [RECEIVED]
95 - Cut Rock'R
96 - Uncle Ray [RECEIVED]
97 - Dog Squab [RECEIVED]
98 - BadWoolRacing
99 - Maniac Motorsports (Mav) [RECEIVED]
100 - Hwy355 Racing (Kay) [RECEIVED]
101 - Abnormal Speed [RECEIVED]
130 - LYDC [RECEIVED]
177 - Mini Mile Raceway (Eden) [RECEIVED]
207 - New Jersey Diecast Racing [RECEIVED]
333 - Dutch Clutch [RECEIVED]
409 - 409 Diecast [RECEIVED]
420 - Baddad [RECEIVED]
426 - DRJ Racing [RECEIVED]
571x - Portillo [RECEIVED]
666 - Chaos Canyon [RECEIVED]
918 - Old Sarge [RECEIVED]
999 - Burnout Peak [RECEIVED]