![]() With a compact precision engineered drum-style sequential gearchange mechanism, you can be assured of robust, reliable performance. ![]() Incorporating dog engagement, and in some cases wider than standard close ratio gears with advanced tooth forms in either straight-cut (spur) or helical formats, Quaife’s sequential technology means that gear selection is executed by a simple push or pull on a specially designed gearlever, a process that takes a fraction of a second. Innovative, high quality, reliable and offering outstanding performance and value, these comprehensive Quaife sequential gearkit packages have been designed to enable a straightforward installation into these applications with the maximum retention of standard drivetrain components. For this reason, (and because some Quaife dog engagement gearkits convert a factory five-speed unit into six-speed unit), various machining processes may be required on the original production gearbox main casing to enable product installation.įor product selection advice from the Quaife dog engagement gearkit range, please contact our Technical Sales Team.įor the ultimate in no-compromises gearchange technology, Quaife has designed a range of sequential gearkit packages for a number of popular vehicles including the Lotus Elise/Exige (PG1 and Toyota C64/EC60 gearbox codes), the Ford IB5 (Fiesta ST150, Focus, Ka etc), plus the Honda Civic Type R (EP3 and FN2 models). In ‘H-pattern’ format, the real limiting factory on gearshift speed with a Quaife dog engagement gearkit is driver ability.įeaturing power loss reducing straight-cut (spur) close-ratio gears with advanced high-strength tooth forms, (and in the majority of cases), a choice of final drive ratios, Quaife dog-engagement gearkits are supplied with larger, high durability selector forks that replace the standard items. These ‘dogs’ interlock with each other to provide a stronger, more positive gearshift than is physically possible using a synchromesh arrangement, which can easily be ‘beaten’ during a fast shift and is ultimately likely to fail if continually abused. ![]() Developed by leveraging our expertise with motorcycle drivetrains, these gearkits completely dispense with the original synchromesh engagement mechanism, instead using a motorcycle-style ‘dog-tooth’ arrangement where each gear meshes to the next by a series of hard wearing precision machined teeth ‘or ‘dogs.’ Quaife dog engagement gearkits are designed for drivers seeking a high strength geartrain that offers rapid gear selection. ![]() For product selection advice from our synchromesh gearkit range please contact our Technical Sales Team. For many applications a choice of Quaife final drive ratios is available. The vast majority of Quaife helical and straight-cut close ratio motorsport gearkits can be installed into a standard production gearbox casing with few, if any, modifications required. Where possible, certain Quaife synchromesh gearkit applications convert a standard five-speed gearbox into a six-speed close ratio unit to fully maximise the potential of the car’s powertrain package. On highly tuned, high revving engines, this greatly improves vehicle performance. Quaife helical and straight-cut synchromesh gearkits feature close ratio gears, enabling drivers to easily keep the engine operating in its power band, with minimal rev drops between gearshifts. Standard production car gear ratios are frequently designed as a compromise between fuel economy, noise and motorway cruising and are often unsuited to circuit, rally or trackday use. ![]() This has the potential to increase gearbox durability and reduces parasitic transmission power losses to a minimum, meaning more engine power is delivered to the car’s driven wheels. Quaife ‘straight-cut’ (or ‘spur’) synchromesh motorsport gearkits feature ratios where each tooth is machined at angle straight across the gear, enabling torque loads to be transmitted at right angles to the main gearbox bearings. This can improve reliability by reducing bearing stress, cuts parasitic transmission losses to increase performance and, courtesy of Quaife’s wide tooth form design, greatly improves strength. Compared to standard production gear profiles, Quaife’s helical synchromesh motorsport gearkits reduce the angle (helix) that the gear teeth are machined at relative to the gear shafts. Quaife’s close ratio, synchromesh, motorsport gearkits are the entry-level transmission upgrade for production based cars, and are available in either helical or straight-cut tooth forms. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |