Adding Cruise Control to C1/C2 Corvette
& probably many other vehicles
Audiovox CCS100 Universal Cruise Control (Amazon) $89.95 ** Jan 2012 now ~$175 eBay **
Dakota Digital HND-3 Early GM Handle $48.45
Fairly simple install even with "WEAK" instructions. Click here to view instructions I contacted Roy (67-427ci) and he provide me with his write-up & photos which made job a breeze. Only variations is where you mount the servo assembly, how you mount the cable to the carburetor linkage and switch settings.
Kit is universal, which means it can be adapted to anything that moves and is very popular with the Motor Cycle Community. There is parts galore that most of will be left over to be tossed.
The servo cable is about 4' long and servo wiring about 5' which gives you (1) lot of mounting options or (2) a lot of extra cable/wiring to stuff somewhere. My battery is on drivers side so I mounted server on the passengers side frame rail using a hole where battery tray normally mounts thus I used all cable/wiring length. You will have to decide where/how to mount. Need to route wiring through firewall, Bubba had a couple of holes that I had covered so I used one of those. Also you will need to make you own bracket which is pretty simple using stuff supplied. Also you will need to supply vacuum to the servo, I tapped in the vacuum advance line with supplied "T" fitting. Just make sure you tap into FULL manifold vacuum.
I used the Dakota Digital Handle (HND-3) that replace existing directional handle. I had to do a little filing on handle to get it to fit snuggly.They also make a HND-1 which clips over existing handle which means you don't have to pull steering wheel/hub. I routed wires from handle outside of column because I didn't want to pull and rework column at this time but will add to list of things-to-do next winter. NOTE: My column is Flaming River Tilt so yours may be a little different.
Just for clarification this kit works with just Tach input (1 wire from neg (-) side of coil). No need for magnets or VSS input.
Items of NOTE
In order for the CCS-100 Cruise Control to function, the Servo must be grounded through the purple wire (which is connected to the brake light circuit). When brakes are applied, the bulb lights and the ground is broken. The cruise is therefore canceled. If you have LED taillights the Servo will not function because it is not grounded properly. Resistors or relays can be used to get around this problem.
Some have use resistors but I elected to use a relay as I just happen to have one in the parts bin from a previous project. You can use either a SPDT 5-pin relay (Single Pole Double Throw) as I did or a SPST 4-pin relay (Single Pole Single Throw).
SPDT wiring (SPST will be a little different):
This relay consists of a coil (terminals 85 & 86), a
common terminal (30), a normally closed terminal (87a), and a
normally open terminal (87). At rest, there is continuity between
terminals 30 and 87a. This grounds the Servo. When the coil is
energized, continuity between terminals 30 and 87a will be broken.
Since the Servo is not grounded anymore, the cruise control is then
Dakota Digital HND-3
chose to use the HND-3 make note it is a "NORM CLOSED" switch
instead of "NORM OPEN" as is the supplied switch that is include
with the CCS-100 kit. I don't know what type the Dakota Digital
MANUAL / AUTOMATIC TRANSMISSION SELECT
Here is a few photos of Roy's (67-427ci) install
|67-427ci Servo Mount||67-427ci 4bbl setup||67-427ci 3X2 Setup|
Photos of my install
|Audiovox CCS100||Dakota Digital HND-3||Switch Supplied
|Bracket||Servo Mount||Servo Mount|
|Throttle Connection||Thru to Firewall||Steering Wheel Removed|
|Hub Puller||Original Handle||Dakota Digital HND-3|
test after install cruise did not work. Check everything but
no-go so I started doing internet searches and came up with the
LED taillight problem. Replace one taillight with OLD 1157 bulb
and while system did NOT work correctly it at least tried. So
had to again remove A/C ducts to get to wiring under dash to add
relay to eliminate LED problem. Tried various setting and double
check wiring but no-go. Call help desk but still unable to
solve. Getting ready to check everything again when I was
cleaning up stuff and happen to notice that on the end of the box
the HND-3 came in was the word "CLOSED" !!!
So now I'm ready for CF Cruise-In "X" in Bowling Green J J
After a 50 mile round trip (interstate highway) all I can say is system works GREAT !!! Maintains speed up/down hill just like a factory cruise. Accelerating to pass in either 4th or 5th gear did NOT affect settings or deactivate. Depressing clutch will automatically rev engine FAST so I decide touching brake is way to temporarily deactivate. Clutch over rev protection is good insurance if you forget you've got cruise on.
I install an original I got off of eBay ($150)
on my 1965 El Camino - 327/350 hp. Use same hook-up and setting
as above. Only thing was mounting bracket dual-quads vs. Holley
650. (see below)
Yes that is my '65 El Camino install
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