Tracsport Type 9 rocket ratio helical gear kit .
These gears have been developed with the Duratec user in mind. The gear tooth profiles are much larger than ford original spec and are similar to a typical S/cut gear.The amount of engine torque this gear kit can be used with is about the same as a typical s/cut gearset. The gears are cut to an angle of 25 degree's this means there is more than one tooth driving at any one time which is stronger than one at a time as in s/cut gearboxes,and also 95% quieter. They are also gear shaved after gear cutting to perfect the gear form. First and second gear are bored out larger than standard which saves weight. In other areas we have also lightened the gear train, the benefit of this is enhanced syncro life and a potential faster gear change. First and second gear are fitted with caged needle roller bearings to reduce friction.
The gear ratios are as follows 1st 2.482 2nd 1.61 3rd 1.225 4th 1.1 5th .87 or .82 The .82 5th gear pair have an increased helix angle and finer pitch teeth for quieter cruising.
Available with long and short imput shafts. These gear ratios we believe to be optimum for most applications where the vehicle is used on the road and for competition use. The ratios are very similar to the ratios Ford used for their Rocket helical gear kit from the 70`s. A gearbox is a torque multiplier, the more torque you have the less gears and gearchanging you need to do! Six speed gear boxes with very close ratios are ideal for small capacity engines with very narrow power bands, you need to use all the torque availabe befor changing gear! The option of .82 on 5th would be usefull for touring purposes. Ideal for clubmans rally cars,kit cars and classic road going Escorts,capris,cortinas etc.
Complete gear box £1200.00 +VAT retail outright sale. £1100.00 exchange.
Gearkit £750.00+VAT retail. Trade, multiple purchase discounts are avaiable.
