Here is a copy of the straightliners sprinting rules :Its the first statement that is relevant to your question. Ive been sprinting for three years in 210 street class, and yes I do remove my carb side panelto allow better breathing. All street scooters including Pro Street are silhouette classes, meaning the original outline look or silhouette must be like the manufacturers design. All Bodywork has to be the original shape. fibreglass or carbon fibre replacements may be used to replace steel original bodywork and panels . The original frame must be used. Wheel base must be original length. With the exception of Pro Street Class The frame loop must be original steel and as per original shape and size. Air scoops may be fitted to panels, holes may be cut to allow the carburettor or airfilter to protrude beyond the body work. Side panels must be fitted but runner boards are optional Pro Street Class may be levered by 2 front and rear, but must have suspension fitted, Head stock can be like low line racer approx 4 Tyres Must be street legal (no race tyres) suspension must be used but can be changed to modern up grade Engine The original manufacturers engine casings must be used in the same location as originally fitted Cylinders Must be of a type made for the engine (no motorcycle cylinders) and must retain the original manufactures stud spacing , No one off cylinders, Cylinders can be modified , welding is allowed, but must be commercially available Bore and Stroke Must be declared in all street scooter classes at signing on up to 210cc for Lambretta and up to 190cc for Vespa and must be strictly below these limits Lambretta above 210cc and Vespa above 190cc have a top limit of 260cc in the Super street class Fan Cooling must be used in the street classes however the cylinder head my not be covered (optional) But the cylinder must be covered by a cylinder cowl .This is to allow larger cylinder heads to be used. Pro Street Scooter does not require cowlings of any kind but they me be fitted if desired. Water cooling is allowed in the Pro Street class only The Flywheel cowling must be fitted in all Street classes. Flywheels can be of any type with a fan fitted for street classes. The pro street class do not require a fan to be fitted however ALL Street classes must have a flywheel generator as a power source for the lights, horn and brake light with switch. Internal rotor ignitions that do not generate power for lights are only eligible for the racing scooter classes Fuel The petrol tank must be of the original size and shape and fitted as per the manufacturers original prostitution, Pro Street and competition classes may have any size fuel tank and any shape it must be fitted in a safe position, all fuel tanks must have a on of tap clearly marked The Fuel used may be petrol or Avgas octane boosters are allowed, But Nitro methane and Propylene Oxide additives are not allowed Exhausts Must have a silencer fitted and must comply with any track noise limits that are in place MOT TAX AND INSURANCE for street classes are not required But the scooter must be able to be presented for inspection with working lights horn and brake light and be able to pass an MOT after racing,,, any scooter that fails this test when called upon to come for inspection will have there times move up to the relevant racing class, Inspections will be random and carried out by a qualified person CLASS 6 Competition Scooter This class is for all scooters up to 210cc , Full race scooters or those built for sprinting , Group 4 Lambrettas and racing small frame Vespas drop straight into this class CLASS 7 Top Scooter is for all scooters above 210cc but not above 260cc all Group 6 racing scooters and Sprint scooters drop into this class providing they are not above 260cc CLASS 8 scooters in this class are specials primarily with motorcycle engines or scooters that do not fit into any of the above classes these scooters do not need to be street legal but must have silencers and might any track noise limit there my be During the course of the season there will be an exclusive club set up this will be the 100MPH PLUS CLUB,, THERE ARE NO MEMBERS AT THE MOMENT Membership is free and is open at the first round to any scooter rider going over 100mph on the 1/4 mile,, these riders will go into the club and get a certificate at the event stating there achievement these certificates will be numbered starting at number one
Posted on: Sat, 17 May 2014 07:45:03 +0000
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