Install Guide Gaged Gx9

Congratulations on your Gaged Engineering clutch system purchase.

Since the inceptions of the company, our purpose has been to supply the Junior Dragster market with a trustworthy product, constantly improve and introduce new technology, and provide an unrivaled technical support system to our clutch users.

Substantial amounts of time and money have gone into the research and development of Gaged Engineering products, and now you are the beneficiary of their consistency and reliability.

You now have our long-lasting commitment to

superior clutch technology and assistance.

For us, the

greatest accomplishment is helping you have a successful racing career and to enjoy the time spent with your driver and family.

The following information backs up our commitment by helping you get adjusted to your new clutch system.

We

will start with how to properly install your new setup and share some general clutch information.

We will then give

you several tuning suggestions that will get you well on your way to becoming a knowledgeable clutch user.

Please

The Gaged Engineering logo is a U.S. Registered Trademark ® of Gaged Engineering, Inc.

read through the entire document prior to using your new product.

We truly appreciate your business and hope to see you at the races soon!

Gaged Engineering, Inc.


Installation First, polish the crankshaft PTO and the jackshaft with emery cloth to remove any imperfections.

It may be

necessary to file the edges of the keyway broach if there are any burs present.

Next, without keyways, install the

primary and secondary units.

Both units should slide on

their respective shafts with ease.

If this is not the

case, continue polishing with emery cloth. either unit on with a hammer.

DO NOT drive

Once both units install

easily, remove them and install non-coated 3/16” keyways on the crankshaft and jackshaft. secondary units.

Reinstall the primary and

If either unit does not slide on with

nominal pressure, it will be necessary to file the keyway broach inside the clutch post and possibly the edges of the keyway itself.

To fasten the primary unit to the crankshaft, we recommend that you use a 5/16” fine thread bolt, preferably Grade 8. Tighten the

bolt to 20-25

ft/lbs.

Center to Center Belt Model GE 7709

Belt

Distance 8 5/8"

In order to

Adjustment get the most

from your clutch system, adjustments must be made to ensure proper belt tension.

The measurement of concern is the

distance from the center of the crankshaft to the center of the jackshaft.

Use the following table to determine what

your initial center-to-center distance should be, depending on what belt is being used.


GE7710

9 1/4"

Pitbull

9"

Magnum 330/660

8 5/8"

Magnum 330/660L

9 1/4"

Please note that the values in the table are only recommended initial settings. needed. belt.

Adjustments may still be

Once the initial distance is set, install the

Rotate the secondary unit until the belt stops

moving outward.

Depending on the belt width, the top of

the belt may be flush with the top of the secondary unit’s pulleys, or it may stick out beyond the tops of the pulleys.

At this point, direct your attention to the

primary unit.

Pinch the belt on the top and bottom at the

primary post.

There should be a gap between the belt and

the post of 1/8”.

See the following pictures.


If the gap is more than 1/8”, the center-to-center distance must be increased. recheck the gap.

Move the motor forward 1/16” and

Repeat until the desired gap is achieved.


If the gap is less than 1/8”, the center-to-center distance must be decreased. the gap.

Move the motor back 1/16” and recheck

Repeat until the desired gap is achieved.

Primary and Secondary Unit Offset For proper clutch system operation, the secondary unit must be offset from the primary unit 5/16”.

Measuring from the

backsides of the inside pulleys of each unit, the secondary unit should be 5/16” further away from the centerline of the car.

See picture below.

It is common practice to ‘float’ the secondary, especially with splined jackshafts.

Using split collars, the

secondary unit is allowed a range of approximately 1/4” of travel.

This allows the secondary unit to align itself

under load with respect to the primary unit.

Clutch Support We suggest the use of a dual bearing crank support.

Though

this may not prevent all damage, dual bearing girdles have The Gaged Engineering logo is a U.S. Registered Trademark ® of Gaged Engineering, Inc.

proven to prolong the life of engines and crankshafts, and therefore, your clutch system.

Maintenance For maximum results with your new Gaged Engineering clutch system, it is paramount that you keep it clean.

Wipe down

the pulleys and belt between rounds, or at the very least, between racing events.

Regularly check for wearing on

pulleys, rollers, ramps and the helix, and keep track of belt thickness.

How It Works Your Gaged Engineering clutch system is activated by engine RPM.

It will engage at a specific RPM, which is mainly

determined by the primary spring and the stall angle of the ramps.

A stiffer primary spring will result in a higher

engagement RPM, while a softer primary spring will result in a lower engagement RPM.

Also, the stall angle of the

ramps will effect the engagement RPM.

A higher stall angle

results in a lower engagement RPM, while a lower stall angle results in a higher engagement RPM.

The ramps and weights control how the quickly the clutch reacts and how load is applied.

There are several options

of ramps available, and you may find it necessary to have several sets for different conditions.

The weights on the

arms control how much load is applied, and in combination with the ramps, how fast the load is applied.

Heavier

weights generally result in more load, in a faster manner. Likewise, lighter weights are just the opposite.

Also,


heavier weights result in a lower finish line RPM, where lighter weights result in a higher finish line RPM.

The secondary unit acts as a timer for the primary unit.

A

higher degreed helix will allow the system to shift faster, while a lower degreed helix will cause the system to shift slower.

You also have the option of adjusting spring

pressure in the secondary unit.

Here, more spring pressure

causes the system to shift slower, while less pressure causes the system to shift faster.

See picture below.

Suggestions It is very important to know what you are trying to achieve with your engine.

Speak with your engine builder and

determine what RPM range to keep the engine in.

With that

information, you can adjust your Gaged Engineering clutch system to maximize performance.

If there are ever any

questions, don’t hesitate to call us at (402) 293-0140 or email us at [email protected]. The Gaged Engineering logo is a U.S. Registered Trademark ® of Gaged Engineering, Inc.


Install Guide Gaged Gx9

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