LIGHTWEIGHT ALTERNATORS

A dynamo will weigh around 6kg be 100mm diameter and over 160mm long. The smaller typical modern alternators weigh in at 4kg upwards are over 130mm diameter and 150mm long. Our small lightweight alternators are designed with ease of installation in mind and weigh only 2.9kgs. They are the same diameter as a dynamo and shorter than a conventional alternator.

Available in 45 and 55 amp versions we take a standard small alternator and completely strip it down. We dip the windings in lacquer to protect them and paint the commutator to stop it rusting and splitting the case. We then convert the internal regulator/rectifier unit to produce a 'single wire' unit. Each component is tested and just to make sure, after reassembly each unit is bench tested under load.

Single wire conversion makes the alternator simple to install on any vehicle. The main stud terminal is wired to the battery positive supply and the spade terminal is wired to the warning light. Like any alternator, the vehicle must be negative earth and because the alternator earths through the engine you should ensure the engine earth strap is in good condition. Changing the older positive earth cars to negative earth is a simple job for an auto-electrician provided you do not have any complex electronic equipment fitted. (See instructions under Dynalite wiring)

The alternator will start to charge from about 1200 rpm and will run happily all day at 25,000 rpm so we recommend that you run it at approximately 1.5 to 2 times engine speed. We do not include a pulley with the alternator but you can use your existing pulley or we can make a lightweight aluminium pulley to suit your requirements.

If you need the 55 amp alternator you only have a choice of one but otherwise we suggest you choose the unit with the brackets that will give you the nearest fit to your existing brackets. The alternators are only required to fit the front brackets and as such the RAC002 is the most popular choice.

All alternators are the same price at £185.00 including VAT