Briggs World Formula Racing Engine, Electric Start
WORLD FORMULA
Racing Engine
click for WORLD FORMULA CATALOG & REFERENCE GUIDE
Building off of the success of the Animal Racing engine, the World Formula was launched in 2003 in accordance with the CIK World Formula class rules. This complete engine package balances the latest in engine design and technology to provide racers with a consistent, low-maintenance and low-cost platform, in which to sharpen their driving skills and chassis setup. Hand-built and individually tested in our Milwaukee, Wisconsin skunk works
Estimated 15 HP. Jr. World Formula class ages 12 - 15, Sr. World Formula class ages 15 & up
FEATURES
- Dual Ball-Bearing, RACING Reinforced Cylinder
- Billet Rod
- Slotted, Stelite-Faced, Ground Cam w/ Compression Release
- Dual, High-Silicon Valve Springs
- PVL™ Digital Ignition System w/7,100 RPM Limiter
- CNC D-Shape Intake Port
- Walbro™ Round - Slide Carburetor
- Dana™ Fire-Ring Head Gasket
- Racing Crankshaft w/ Induction-Hardened Crankpin
- Green™ Air Filter
- Federal Mogul™ Moly-Coated Cam Ground, Barrel-Faced Piston
- Chrome-Faced, Racing Only Ring Package
- Port-Liner, Exhaust System
- Mikuni™ Fuel Pump
- Automotive 3-Piece Valve Retainer System
-
Beefy Rocker Arm Stud Nuts
*THIS ENGINE NO LONGER HAS ELECTRIC START*
Technical / Torque Specifications
| Description | Wrench / socket size | Torque |
|---|---|---|
| Air Guard | 7mm | 40-50 lb-in. (4.5-5.6 Nm) |
| Blower Housing | 10mm & 3/8" | 60-110 lb-in. (7-12.5 Nm) |
| Carburetor (to manifold) | 10mm | 80-110 lb-in. (9-12.4 Nm) |
| Connecting Rod | T27 | 140-150 lb-in. (16-17 Nm) |
| Cylinder Head Bolts | 10mm | 200-220 lb-in. (20-27 Nm) |
| Exhaust Brace Screws | 10mm | 95-125 lb-in. (11-14 Nm) |
| Exhaust Stud | 10mm | 95-125 lb-in. (11-14 Nm) |
| Flywheel Nut | 15/16" | 55-75 ft-lbs. (74.5-101 Nm) |
| Flywheel Fan | 10mm | 180-240 lb-in. (20-27 Nm) |
| Intake (to cylinder) | 5mm Allen | 70-90 lb-in. (8-10.2 Nm) |
| Oil Drain Plug | 3/8" | 100-125 lb-in. (11-14 Nm) |
| PVL Module | 7mm | 20-35 lb-in. (2.3-4 Nm) |
| Rocker Arm Stud | 7/16" | 90-120 lb-in. (10-14 Nm) |
| Rocker Arm Plate | 10mm | 70-90 lb-in. (7.9-10.1 Nm) |
| Rocker Arm Set Screw | 1/8" Allen | 50-70 lb-in. (5.6-7.9 Nm) |
| Spark Plug | 5/8" Deep | 95-145 lb-in. (11-16.4 Nm) |
| SIde Cover | 10mm | 95-125 lb-in. (11-14 Nm) |
| Starter Gear | #2 Phillips | 35-53 lb-in. (4-6 Nm) |
| Top Control Plate | 10mm | 70-90 lb-in. (8-10 Nm) |
| Valve Cover | 10mm Lower & 3/8" | 30-60 lb-in. (3.5-7 Nm) |
Briggs & Stratton does not approve or authorize the use of these engines on 3 wheel all-terrain vehicles (ATV s), motor bikes, fun/recreational go-karts, or aircraft products. Use of these engines in such applications could result in property damage, serious injury (including paralysis), or even death. This engine requires special technical expertise and preparation before it can be used in competitive events.