No matter if the competition is street/strip, circle track or anything in between, every competitor knows that parts have to take beating and stand up to grueling conditions or the competition is over. And in racing, failure means sitting on the sidelines, watching.

One of the most taken for granted competition products is the starter. That’s because starters are a dime a dozen and many competitors go the route of “any starter will do,” paying the price of starter failure. However, failure is a non-issue with a Quarter Master® Hi-Torque Ultra-Duty starter. They are superior in every way and thanks to years of advanced design that has been refined with aggressive dyno and on-track testing.

A premium Quarter Master® starter is manufactured with quality, long life and cost savings in mind. Each unit is made with the most dependable and durable components available, resulting in starters that meet the heavy demands of racing environments. And most important of all, they’re built to last so replacement costs are virtually eliminated.

Racing starters take a lot of abuse, so it makes sense that it takes a tough starter to supply worry free performance and long lasting service. And a tough starter is what engineers at Quarter Master® have achieved because of their exacting standards.

Building a tough and reliable starter takes superior components, and every Quarter Master® unit includes top-quality Hitachi components.  In addition, Quarter Master® starters feature heavy-duty solenoid and ball bearing construction to withstand higher engine temperatures and more extreme operating conditions. They also include gear reduction for increased ring gear torque and 1.4kw of power output. The adapter mounts are CNC-machined for precise flywheel fit and unique pinion gear with a lightweight head to enable much tighter tolerance in run-out, which makes for a highly efficient flywheel engagement. Each and every component receives multiple quality checks before it is even passed along to the starter assembly area.

It’s not only the components that make Quarter Master® starters strong; it’s also how each starter is put together that assures a tough and reliable starter. It is here that Quarter Master® sets the bar even higher.

To demonstrate the amount of precision Quarter Master® puts into every starter, take a look at the following pictorial overview of some of the painstaking detail that goes into every starter. It will become clear why racers rely on Quarter Master® starters to handle the conditions that racing dishes out and keep on running. The starter used in this illustration is a PN# 114260 reverse rotation starter.

These are a few of the steps taken by Quarter Master® to assure the toughest and most reliable starter possible. As you can see, each is built with extraordinary precision and attention to detail. Each one is built for efficiency, reliability start after start.  And with applications for Chevy, Ford and Chrysler in every form of racing competitors are assured that Quarter Master® gets you started and keeps you going.

The solenoid contains several modifications to provide efficient performance racers expect. For instance the solenoid plunger (the black cylinder on the right) is chamfered to assure that the in-and-out movement will not bind. The free movement of the plunger is mandatory for reliable starting.

The solenoid spring is modified; the end is sanded to assure the end is flat and is seated accurately. This is a simple yet important step to assure reliable operation of the starter.

Because some race starters require reverse rotation, the coil housing must be dissembled and the coil must be reconfigured for reverse flow electricity. With the reconfiguration complete, the coil unit is reassembled.

One of the first steps in coil unit assembly is to insert a fiber packing ring. This component (the white ring at the top of the case) serves as a barrier between the coil case and armature brush unit. With all the beating and banging that racing dishes out, this addition assures that electric current from the coil brush unit to the coil case is eliminated, thus preventing starter failure.

The reverse rotation coil is now put in place. This procedure is an exacting process that requires great precision. Once the coil is placed in the housing, it is then pressed outward to assure a tailored fit and provide the required clearance for armature rotation.

Prior to putting the armature in place, it goes through a chamfer operation. This operation removes any sharp edge that could cause coil damage. Again, it’s a small step but is another link in the chain of specific detail that ensures long life for the starter.

Because the armature and bearings unit is the heart of a starter, it’s important that each unit is verified for free rotational movement. Unrestricted rotation is vital for efficient and long operation. Should any vibration, wobble or other movement impediment be detected, the unit does not pass inspection and is discarded.

Each armature brush unit is modified to assure that there is no electric arcing that could cause operational failure. Here, the copper wiring has been elevated from the base of the brush unit. This small but important step ensures that no contact of electricity will occur to the base.

Another modification to the armature brush unit is the addition of a chamfer to the edges as is shown here. This action eliminates any sharp edge that might do damage to coiling wiring.

When the coil unit is assembled it is then verified for roundness and each case is micrometer checked. This action is critical for an accurate fit to the gear case. Any unit that does not mount together with perfect accuracy will cause problems later.

It’s a small but important detail. As assembly proceeds, all screw attachments to the starter have Loctite applied. This is just another detail that’s important and provides additional security in every Quarter Master® starter.

When all the modifications have been made, the solenoid and coil case are mounted to the nose unit (gear case) and tested. When the operation of the unit is verified, it’s ready to go to the races.

For more information on Quarter Master® products and services call 1-888-540-8999 or go to www.quartermasterusa.com

Quarter Master®

510 Telser Rd.
Lake Zurich, IL  60047

Phone: 847-540-8999
Fax: 847-540-0526