AP Racing Catalogue Issue 4

49 visit www.apracing.com for installation drawings & up to date product range details This section provides more detailed information on our own APF branded brake pads, developed for both road and competition applications. The graphs below and adjacent announce the 5 material grades currently available and provide visual details of some pad characteristics. PAD PROFILES: Not all materials are available in all pads shapes. Here is a list of the shapes currently available: CP2195 / CP2270 / CP2279 / CP2340 / CP2372 / CP2399 / CP3215 / CP3345 / CP3558 / CP3894 / CP5070 / CP5119 / CP5788 / CP6210 / CP6230 / CP6268 / CP6600 / CP6627 / CP6820 / CP7031 / CP7040 / CP7555 / CP7600 / CP7635 / CP8250 / CP8310 / CP9555 (See pages 51 to 55, to check material availability). APF 401 Competition Pad suitable for Circuit & Rally use. Good bite and stable friction give excellent modulation & release characteristics. Should be considered where PFC# 01, Ferodo DS1.11 and Mintex F2R are currently used. APF 402 Competition Pad for Circuit & Rally use. Not suitable for road use. Higher friction than 401, rising torque, good release , little or no fade. Should be considered where Project Mu H19, PFC # 05, Raybestos ST43, Ferodo DS2.11, Mintex F6R or F4R are currently used. APF 403 General Competition Pad. Not suitable for road use. Easy to bed, predictable and repeatable performance with good bite & friction. Consider where Raybestos ST41/ST43, Ferodo DS3000 or 4003 are currently used. APF 404 Excellent High Performance Road and Track pad. Consistent performance, low wear, disc friendly, low noise, low dust, low fade, good feel. Consider where Ferodo DS25HP, Pagid Blue (RS4-2), Pagid RS421 or Carbo-TechXP10 are currently used. APF 405 Suitable for High Performance Road, Track and Lightweight circuit cars. Consistent performance, disc friendly, low noise, good feel. Consider where Pagid (Blue) RS4-2, RS4-4, Ferodo DS2500 are currently used. 0.5 1.0 1.5 2.0 2.5 3.0 0 APF 401 - LOW COOLING APF 401 - HIGH COOLING STOPPING POWER INDEX APF 402 - LOW COOLING APF 403 - LOW COOLING APF 404 - LOW COOLING APF 405 - LOW COOLING APF 402 - HIGH COOLING APF 403 - HIGH COOLING APF 404 - HIGH COOLING APF 405 - HIGH COOLING 0.1 0 0 100 200 300 400 500 600 700 800 0.2 0.3 0.4 0.5 0.6 TEMPERATURE °C PAD µ 0.1 0 0 100 200 300 400 500 600 700 800 0.2 0.3 0.4 0.5 0.6 TEMPERATURE °C PAD µ 0.1 0 0 100 200 300 400 500 600 700 800 0.2 0.3 0.4 0.5 0.6 TEMPERATURE °C PAD µ 0.1 0 0 100 200 300 400 500 600 700 800 0.2 0.3 0.4 0.5 0.6 TEMPERATURE °C PAD µ 0.1 0 0 100 200 300 400 500 600 700 800 0.2 0.3 0.4 0.5 0.6 TEMPERATURE °C PAD µ MATERIAL GRAPHS The traditional friction vs temperature graphs exhibited below are derived from our dynomometer test cycle carried out on our three in house dynamometers which we use for all pad evaluations. These graphs are for guidance only. Numbers are not absolute - results can vary according to the test cycle used (load, pressure, speed, cooling etc) but we believe the results shown fairly represent the performance that will be experienced by the user under normal conditions. NOTE: All the information on this page is offered for guidance only. AP Racing has gathered this information by incorporating the experi- ences of our engineers and our special dynamometer evaluations carried out in-house. STOPPING POWER INDEX AP Racing have created our own Stopping Power Index. This is related to friction but is also influenced by energy absorption and the change of friction both with temperature and during the braking event. It is based on the total stopping time over a series of constant pressure stops for a range of speed differentials over a complete dynamometer test cycle, this index creates a very good overall measure to compare different friction materials. Higher numbers = more stopping power N.B. The stopping power is influenced by level of cooling. BRAKE PADS - APF Pad Range