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Austin Healey Sprite, MG Midget High Torque Gear Reduction Starter

Austin Healey Sprite, MG Midget High Torque Gear Reduction Starter
Pricing: $193.95


Austin Healey Sprite, MG Midget High Torque Gear Reduction Starter

General Information:

Gear Ratio

The gear ratio of the starter is 4.44:1 which enables the starter to develop its unique torque values.

Bearings vs. Bushings:

The Hi-Torque starter is equipped with five (5) full roller bearings while the typical Lucas unit uses two (2) bushings to suspend the armature.

Solenoid Design

The design of the Lucas solenoid is very susceptible to Hot Start Syndrome. The windings of the solenoid are encapsulated in steel. There is no means for the heat to dissipate. The solenoid of our Nippon Denso Hi-Torque Gear Reduction starter is encased in aluminum. Our solenoid is equipped with a vent hole. Every time it is engaged, it pushes (pulls) cooler air into the solenoid area thus virtually eliminating the Hot Start Syndrome.

Technical Data

No load condition @ 11.5 volts

Max current (amps) - 90 or less

Minimum speed (rpm) - 3000 or more

Load condition

8.0 volts are minimum voltage requirements

Torque - .65 kg-n

Maximum current (amps) - 250 or less

Minimum speed (rpm) - 1180 or more

Lock test

Voltage - 2.5v (at least 7:1 CR)

Max current (amps) - 300 or less

Minimum torque (kg - n) - .7 or more


Voltages - 12v

Output - 1kn

Rating (seconds) - 30 seconds

Torque rating - 535 ft. lbs

NOTE: Torque rating is based on a 9 tooth pinion gear.

Solenoid Bypass Instructions

Solenoid Bypass instructions:
Many of you own cars that came with an external solenoid for use when starting the car. It is usually mounted on the firewall or on the side of the engine bay. The use of this solenoid may still be retained by following these easy instructions:

Our Nippondenso starter has two electrical terminals on it. This starter may be used in both positive and negative ground cars so, I will refer to the terminals as the "big" terminal and the "little" terminal so as not to confuse you. The big terminal has the nut on it while the little terminal( solenoid terminal) has a shielded black cover over a small male (spade) push terminal. With a 4 inch piece of wire(14 or 16 gauge will do) connect these two terminals together.

To do this you will need to buy a female connector to crimp on one end of the wire (goes to the small terminal) and a ring connector for the large terminal. That is all there is to it! If this just confused you, please give us a call or drop us an email. We'll be happy to assist you.


  • 13575099
  • STBR-10003, Sprite, MG Midget
  • New

Shipping Information

  • Item Requires Shipping
  • 9.5 lbs.
  • W6.5000” x H4.5000” x L11.5000”

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