AP Racing Catalogue Issue 4

77 visit www.apracing.com for installation drawings & up to date product range details PEDAL BOXES - Floor Mounted - CP5540 & Underslung CP5508 Types CP5540-50 is a floor mounted push type racing pedal box, incorporating a tandem master cylinder CP5540 family for brake application only, and a standard cylinder is required for clutch actuation. The tandem master cylinder removes the ability to adjust the brake balance during an event, therefore brake balance should be set by selecting an appropriate bore within the master cylinder range. Part Numbers ◘ Brake, clutch and throttle assembly - CP5540-50 ◘ Download latest issue installation drawing fro mwww.apracing.com features ◘ A double ended master cylinder with two separate hydraulic chambers which, when compressed by pedal effort, creates two output pressures, one each for front & rear brake circuits. ◘ Brake pedal has multi ratio mounting bracket, allowing three different ratio to be used. Therefore, overall braking effort (to achieve a certain retardation) can be varied by switching to an alternative pedal ratio. ◘ The system eliminates several components that are used in a typical pedal box, because there is no need for a balance bar. For example the number of bearings is reduced from 6 to 3. - Brake ratios: 2.1:1 / 2.5:1 & 2.9:1 - Clutch ratio: 4:1 ◘ Optimised, lightweight Aluminium alloy base plate. ◘ Throttle pedal has a return spring fitted. ◘ Both pedals are pivoted on ball bearings to increase smoothness of feel for the driver. ◘ Adjustable stop on clutch pedal. ◘ Designed for use with master cylinder types: - Brake - CP5540 see page 68. - Clutch - CP2623 or CP4623 see page 64. ◘ Designed to suit a contactless rotary throttle potentiometer. This sensor in not included with the pedal box, and must order seperately. Part number - CP5540-220. ◘ Weight - Without cylinders 1.64kg CP5540 - Floor Mounted Tandem Push Type This multi ratio push type pedal box allows the pushrod to remain straight, eliminating all side loads, therefore making it very efficient. The master cylinders connect directly to a high efficiency balance bar. A lightweight aluminium base, and ergonomic steel and alloy pedals, offer the user the ultimate control in this critical area. Uses CP7854 Master Cylinders. Part Numbers ◘ Brake and clutch assembly - CP5508-1 ◘ Download latest issue installation drawing from www.apracing.com features ◘ Lightweight aluminium base, machined from solid. ◘ Clutch pedal is machined from aluminium billet. ◘ Brake pedal is machined from steel. ◘ Brake pedal has multi ratios mounting bracket, allowing three different ratio to be used. ◘ Brake pedal has a return spring fitted. ◘ Both pedals are pivoted on ball bearings to increase smoothness of feel for the driver. ◘ Adjustable stop on clutch pedal. ◘ Designed for use with CP7854 master cylinder, see page 65. ◘ Travel sensor kit CP5854-10 available for the master cylinders used with this pedal box. ◘ Weight. - without cylinders 2.12kg - with cylinders 2.72kg CP5508 - Two Pedal Underslung Push Type