MSD Soft Touch Rev Control
PN 8738
Note: This Rev Control must be used with the MSD 6T, 6TN or 6-HVC Ignition Control.
Parts Included:
1 - Rev Control 4 - RPM Modules, 3,000, 6,000, 7,000, 8,000 rpm
4 - Mounting Screws 4 - Heat-Shrink Sleeves
PROGRAMMING FOR 4, 6 OR 8-CYLINDER ENGINES
The Rev Control will operate with 4, 6 or 8-cylinder engines. It is programmed at the factory for 8cylinder engines, but can be easily modified. To program the Control, remove the phillip screws and
round cover on the side of control and modify the wire loops as shown in Figure 1.
After cutting the Loop(s), seal the ends with the
supplied Heat Shrink Caps. Install them over the
bare wire ends and apply a small amount of heat
so the connector will shrink and seal the wire
ends. This will prevent the wires from shorting
together and seal them from water.
Figure 1 Cylinder Programming Loops.
MOUNTING
Make sure the Harness of the Rev limiter reaches the harness of
the GM Heavy Duty Ignition Control. Install the mounting pads
and sleeves as shown in Figure 2. The tapered side of the sleeve
should face down.
The Control can be mounted in the engine compartment as long
as it is away from direct engine heat sources. Use the Control as
a template and mark the mounting holes. Drill the holes with an
1/8” bit and install the supplied screws.
After installing and programming the Control, connect the 4-pin
connector to the Ignition's matching connector.
Figure 2 Mounting Pads.
SETTING A LIMIT
Plug your desired RPM Module into the module receptacle. If an RPM Module is not installed, the
engine will run but there will not be a limit.
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RPM Module Kits are supplied with five modules in a 1,000 rpm range in 200 rpm increments. There
are even number sets and odd number sets available. Example: PN 8745 includes 5,000, 5,200,
5,400, 5,600, 5,800 modules.
Kit Even Set Odd Set
3,000 Kit PN 8743 87431
4,000 Kit PN 8744 87441
5,000 Kit PN 8745 87451
6,000 Kit PN 8746 87461
7,000 Kit PN 8747 87471
8,000 Kit PN 8748 87481
9,000 Kit PN 8749 87491
10,000 Kit PN 8750 87501
11,000 Kit PN 8751 87511
12,000 Kit PN 8752 87521
Module Selectors: These Selectors
offer 12 different rpm limits at the
turn of a knob. Note: Even rpm in
200 rpm increments only.
For rpm settings below 3000 rpm,
MSD offers an adjustable Module,
PN 8677.
RPM PART NUMBER
3,000 - 5,200 PN 8670
4,600 - 6,800 PN 8671
6,000 - 8,200 PN 8672
7,600 - 9,800 PN 8673
9,000 - 11,200 PN 8674
10,600 - 12,800 PN 8675
Service
In case of malfunction, this MSD component will be repaired free of charge according to the terms of the
warranty. When returning MSD components for warranty service, Proof of Purchase must be supplied for
verification. After the warranty period has expired, repair service is based on a minimum and maximum fee.
All returns must have a Return Material Authorization (RMA) number issued to them before
being returned. To obtain an RMA number please contact MSD Customer Service at 1 (888) MSD-7859 or
visit our website at www.msdignition.com/rma to automatically obtain a number and shipping information.
When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to include
a detailed account of any problems experienced, and what components and accessories are installed on the vehicle.
The repaired unit will be returned as soon as possible using Ground shipping methods (ground shipping is covered
by warranty). For more information, call MSD Ignition at (915) 855-7123. MSD technicians are available from 7:00
a.m. to 6:00 p.m. Monday - Friday (mountain time).
Limited Warranty
M
SD IGNITION warrants this product to be free from defects in material and workmanship under its intended normal
use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date
of the original purchase. This warranty is void for any products purchased through auction websites. If found to be
defective as mentioned above, it will be repaired or replaced at the option of MSD Ignition. Any item that is covered
under this warranty will be returned free of charge using Ground shipping methods.
This shall constitute the sole remedy of the purchaser and the sole liability of MSD Ignition. To the extent permitted
by law, the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied,
including any implied warranty of merchantability or fitness. In no event shall MSD Ignition or its suppliers be liable
for special or consequential damages.
*Intended normal use means that this item is being used as was originally intended and for the original application
as sold by MSD Ignition. Any modifications to this item or if it is used on an application other than what MSD Ignition
markets the product, the warranty will be void. It is the sole responsibility of the customer to determine that this item
will work for the application they are intending. MSD Ignition will accept no liability for custom applications.
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© 2007 Autotronic Controls Corporation
FRM28556 Revised 04/07 Printed in U.S.A.