2018 WKC Vintage Enduro Class Rules

Transcription

1 Classes: 2018 WKC Vintage Enduro Class Rules (Proposed 4/4/18) 1. Vintage Open Age 15 & up Twin foreign engines Age 18 & up, with karting experience Eligible Motors: o All Vintage Euro motors o All Vintage Piston Port motors o All Vintage motors o All WKA A-Limited motors o Komet K29, K30, K35, K99, K299 o BM130 o DAP T60, T62 o TKM V, VL o PCR 135R One or two approved foreign engines maximum 280cc total displacement One, two or three approved US-made fan-cooled engines max. 330cc total displacement No minimum weight Open pipe Open fuel 2. Vintage Euro Age 15 & up Eligible Motors: o BM-96, 96TT, 97TT, 100, 104, 107 o Dap T-80, T-80A, T-81, T-72 o Hewland Arrow KE3, KE4 o Komet K-77, K-78, K-88, K-88TT, K-78TT, K-55 o Manx o Parilla SS-21, SS-22, SS-23, SS27TT o TKM S-89, S-89TT, FF-99, FF-99TT o Yamaha KT-100A o Margay LMR o Atlas I o All Vintage Piston Port motors o All Vintage motors No minimum weight Open pipe

2 Race gas only 3. Vintage Piston Port: Age 15 & up Engines Yamaha KT100, ARC, Dap T50, TKM BT82, PCR PP100, PRD No minimum weight Open pipe Race gas only 4. Vintage : Age 15 & up Eligible motors: o 100cc o 125 cc o 135cc West Bend o Any other US-built 100cc fan-cooled reed motor No minimum weight Open pipe Race gas or Methanol General Rules: 1. GENERAL All applicable WKA rules are in effect for all vintage classes 2. CHASSIS - Design must be 1985 or older. No bodywork allowed. FKE karts are an exception and may compete with their stock body. Floor pans must be within the main frame rails only. 3. BRAKES - Upgrades are allowed and strongly recommended. One six-inch hydraulic disc brake is the minimum allowed on Vintage karts. All other Vintage karts are required to have two separate hydraulic braking circuits and a means to prevent complete failure if one circuit fails. Brakes must meet all current WKA brake rules Competition Class Rules: 1. WOODBRIDGE KART CLUB will run Competition Rules for the Vintage EURO and Vintage classes. Racers are eligible to enter and compete in the classes without conforming to the Competition Rules, but racers who do not meet the Competition Rules will be listed as a DQ in the final results. WKC finishing order, trophies and points will be awarded on the basis of the Competition Rules.

3 2. TECH - Engines represented as stock are expected to have stock exhaust port size and height and stock reed s, as noted. Carburetor bore, exhaust ports, and fuel can be checked as required. 3. ENGINES: Ignition upgrades are allowed on stock and stock-appearing engines in the form of electronic modules to replace the breaker points and selfcontained electronic ignitions to replace the stock coil without machine work. Foreign engines may be modified to use Motoplat ignition in place of points. Oversize pistons are allowed in all classes to the following limits to allow salvaging cylinders bored to the limit. o 100cc max o 125cc max o 50.6 mm. bore foreign engines mm. max o 48.0 mm. bore foreign engines mm. max o West Bend 820 engines cannot be bored, but replacement cylinders are available o West Bend new-manufacture Copperhead blocks and manifolds are not considered stock, but may be used in open classes 4. FUEL - All classes are restricted to race gas and oil only, with the exception of specified engine/weight combinations in Vintage, which may use Methanol and oil. NO ADDITIVES other than oil are allowed. 5. RACE LENGTH - All races will be 30 minutes, unless otherwise specified by the Race Director. 6. START PROCEDURES Vintage and Vintage Euro classes will have a LeMans start, where the driver runs across pit lane and gets in the kart. The driver must be in the seat before the engine is started. If the driver is unable to run across the track, then either the person who will start the kart must run in their place, with the starter on the pavement at 90 degrees to the crankshaft, or the driver must wait to start until the pack has left the grid. Any infraction of the LeMans start, i.e. running before the flag or starting the engine early, will be considered the same as leaving before the flag and subject to the same penalty. 7. VINTAGE EURO CLASS RULES: Clutches Any dry clutch or Horstman black or blue clutch is legal. Karts running under Vintage Piston Port rules may use any dry or oil-bath clutch. Eligible Rotary Valve Motors: o BM-96, 96TT, 97TT, 100, 104, & 107 o Dap T-80, T-80A, & T-81 o Hewland Arrow KE3 and KE4 o Komet K-77, K-78, K-88, K-88TT, and K-78TT

4 o Manx o Parilla SS-21, SS-22, SS-23, SS27TT o TKM S-89, S-89TT, FF-99, & FF-99TT o Yamaha KT-100A Eligible Reed I Motors: o Dap T-72 o Margay LMR Eligible Reed II Motors: o Komet K-55 o Atlas I Eligible Piston Port Motors o All Piston Port motors listed above Eligible US-built fan-cooled reed motor o All Vintage motors listed above Specifications and weights as follows: CLASS ENGINE CARBURATOR MANIFOLD PIPE WEIGHT EURO Approved rotary-valve HL Stock Open 355 controlled stock max EURO Approved rotary-valve HL Stock Open 385 stock-appearing max EURO Approved Reed I HR or Burris Stock or Open 355 controlled stock max LAD 90 degree EURO Approved Reed II HR or Burris Stock or Open 385 Controlled stock max LAD 90 degree EURO Approved Vintage Walbro WB3A Stock Open 355 Piston Port max EURO Approved Vintage (Methanol or gas ) or two HL max. Open Open VINTAGE CLASS RULES: Clutch - Any drum-type engine clutch or Horstman 4 or 6 spring DXL is allowed. Any dry drum-type axle clutch is allowed - Bystrom, Hegar, Hartman, Proline, Tripp Eligible Motors: o 100 cc & 125 cc o West Bend 820 o Other 100cc US-built fan cooled reed engines Specifications and weights as follows:

5 CLASS ENGINE CARBURATOR INDUCTION PIPE WEIGHT FUEL 100cc stock Open Open 300 Gas 100cc stock Open Open 335 Methanol 100cc stockappearing or two HL max Open 350 Gas 100cc stockappearing 125cc stock 125cc stockappearing Stock West Bend 820 West Bend 820 Any other US 100cc fan-cooled reed engine max. HL 334a max. or two HL max. or two HL max. Open 385 Methanol Open 385 Gas Fixed 410 Gas Fixed 350 Gas Open Fixed 385 Gas Open Open 330 Methanol