Understanding The Cars And Classes
Tube Chassis

Tube Chassis Drag Cars

Tube Chassis Overview

These purpose-built race cars have an incredible variety of chassis, engine and body style configurations including dragsters, altered, roadsters and full body cars. The one thing they all have is common is that they are built to accelerate as quickly as possible in a straight line for 1320 feet while rolling on four tires.

Top Sportsman and Top Dragster competitors employ any configuration of an internal combustion motor allowed, varying from naturally aspirated, supercharged, turbocharged or nitrous to run in the 6 second range at speeds up to 200 mph. The minimum weight of the vehicle will vary based on engine size and power adders. They utilize the full range of electronic aids to hit their dial in times and the breakout rule is enforced.

Super Comp, Super Gas and Super Street are all heads-up index classes (8.90, 9.90, 10.90). The cars run a variety of combinations of engines, chassis and bodies. Competitors use electronic timers and throttle stops to run as close to the class index without breaking out.

Competition Eliminator is another class that features a wide variety of machines including Gas Dragsters, Street Dragsters, Econo Altered Dragsters and door slammers that can run numerous engine combinations. They race off a full, five-tenths tree and the class has individual indexes. Racers are not allowed delay boxes in this class.

Outlaw/Drag Radial

Outlaw/Drag Radial

  • Power adders are common: superchargers, turbochargers or nitrous-oxide injection
  • Very sophisticated suspension systems to get power to ground
  • Run into the high-five-second zone
  • Speeds of more than 250 mph

Top Sportsman

Top Sportsman Class

  • Full body cars
  • Any engine combination allowed
  • Entries can run in the sixes at speeds up to 200 mph
  • Full .500 tree and dial in. Eliminations racing format.

Comp/Super Comp/Super Gas

Super Comp

  • Heads Up index racing classes
  • Speeds up to 180 mph
  • Use a number of electronics including delay box, adjustable throttle
  • Run close to the index (8.90 – SC /9.90 – SG) without going over

Dragster/Top Dragster/ Super Comp

Top Dragster

  • Rear engine dragsters
  • Any engine combination allowed
  • Entries can run in the sixes at speeds up to 200 mph
  • Full .500 tree and dial in. Eliminations format.

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