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Racing

2025 Racing Season Next Events

The Greatest Show on Dirt will invade Williams Grove Speedway 3 times in 2025! May 9th & 10th July 25th & 26th October 3rd & 4th

2025 Racing Schedule


Divisions

410 Sprints

Engine Size: 410 Cubic Inches
Fuel System: Fuel injection
Horsepower: Approx 900 HP
Compression: 13-17:1
RPM: 8-9000
Speed: 160 mph
Power Train: In/out direct drive w/quick change rear end
Weight: 1425 lb w/driver
Steering System: Power Steering
Fuel: Methanol

358 Sprints

Engine Size: V-8 358 Cubic Inches
Fuel System: Fuel injection or carbureted Methanol
Horsepower: 700 HP
Compression: 10-80:1
RPM: 8000
Speed: 130 mph
Power Train: Quick change aluminum rear
Weight: 1550 lb w/driver
Steering System: Power Steering

World Of Outlaws

Engine Size: 410 Cubic Inches
Fuel System: Fuel injection
Horsepower: Approx 900 HP
Compression: 13-17:1
RPM: 8-9000
Speed: 160 mph
Power Train: In/out direct drive w/quick change rear end.
Weight: 1425 lb w/driver
Steering System: Power Steering

All Star Sprints

Engine Size: 410 Cubic Inches
Fuel System: Fuel injection
Horsepower: Approx 900 HP
Compression: 13-17:1
RPM: 8-9000
Speed: 160 mph
Power Train: In/out direct drive w/quick change rear end.
Weight: 1425 lb w/driver
Steering System: Power Steering

Super Sportsman

Engine Size: 320-358 cubic inch
Fuel System: Carburetor
Horsepower: 560 HP
Compression: 11.5-1
RPM: 8000
Speed: 120 mph
Power Train: Aluminum spec rear axle
Weight: 1,750 lbs
Steering System: Gearbox

PASS IMCA 305 Sprints

Engine Size: 315 Cubic Inches
Fuel System: Fuel injection
Horsepower: Approx 450 HP
Compression: 9.5:1
RPM: 8-9000
Speed: 120 mph
Power Train: In/out direct drive w/quick change rear end.
Weight: 1550 lb w/driver
Steering System: Power Steering

USAC AMSOIL National Sprint Cars

Engine Size: 410 Cubic Inches
Fuel System: Fuel Injection
Fuel: Methanol
Horsepower: Approx 900 HP
RPM: 8-9000
Speed: 160 mph
Power Train: In/out direct drive w/ quick change rear end
Weight: 1350 w/ driver
Wheel Base: 87 inches min

URC (United Racing Club)

Engine Size: 360 Cubic Inches
Fuel System: Fuel injection
Horsepower: Approx 700 HP
Compression: 15:1
RPM: 8-10,000
Speed: 140 mph
Power Train: In/out direct drive w/quick change rear end.
Weight: 1475 lb w/driver
Steering System: Power Steering

358 Late Model

Engine Size: 358 cubic inches
Fuel System: Four barrel carburetion
Horsepower: 560 HP
Compression: 11.5-1
RPM: 7500
Speed: 100 mph
Power Train: Quick change rears
Weight: 2,375 lbs
Steering System: Rack

Super Late Model

Engine Size: 400-430 cubic inches
Fuel System: Carburetor only 4 barrel Holley 750 cfm
Horsepower: 800 HP
RPM: 9400
Speed: 120 mph
Power Train: Direct drive w/ high, low and reverse gears; quick change closed tube
Weight: 2300 lb min w/driver
Steering System: Pressurized rack and pinion

Silver Crown

Engine Size: Normally aspirated, production based V-8’s. 355 cubic inch maximum.
Fuel System: Fuel Injection
Horsepower: 750-800 HP
RPM: 7000-8300
Speed: 160 mph
Power Train: Direct drive with clutch. Quick-change gears are behind the rear end assembly.
Weight: 1625 lb min w/driver
Wheel Base: 96 inches min

Big Block Modifieds

Engine Size: Max 467 cubic inches
Fuel System: Carburetor only 4 barrel Holley 950-1050 cfm
Horsepower: 600-850 HP
Compression: 13-14.5:1
RPM: 7000-8300
Speed: 160 mph
Power Train: 2 speed trans 1 reverse plus quick change rear end.
Weight: 2500 lb min w/driver
Steering System: Power Steering


Rule Book In The News Store
DirtVision

Lawrence Chevrolet

HJ Towing

VP Fuels

Jeffs

PA Dyno Inc

Flat Out Sims

Harrys

Walters

Fast Tees

The Morgan Cup

C&D Summer Nationals

WRT Speed Werx

FRP Fire



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