Aftermarket cruise control

[BigBlockOlds]

I'd like to hook up the cruise control in my '87 but use an aftermarket electronic version for a cleaner look under the hood.

Does anyone know if you can use the stock GM cruise control switch on the steering column to control the aftermarket setup? Has anyone done this that could give some tips?

For those of you running a manual trans, I'm assuming that along with a brake switch you have a switch that you use on the clutch pedal as well so that any time you depress the clutch it will turn off the cruise? What kind of switch did you use for this?

Lastly, what brand of cruise control is considered "decent"? I see a lot of places seem to use the Rostra brand units.

Thanks for the help,

[TD509EFI]

Andrew,

I've looked into this a bit for my 509BBC EFI conversion in my '79. Most of the aftermarket cruise controls are made by Rostra. In fact, I do believe they make them for one or two OEM car manufacturers as well. I don't think you can use your original stalk, but they do make replacements that should be a close or an exact match for your OEM one. The all electronic CC I looked at can use a clutch mounted switch, or it can dis-engage the cruise when it senses a sudden change in engine RPM's. I do believe the switch is an option. When you look at the Rostra site again, download their installation instructions, that should tell you everything you need to know.

John

[garys 68]

Check Dakota Digital. They have settings on the unit to use the NO GM switch or NC Ford switch.
I'm pretty sure you'll need a brake switch with NC terminal used in Auto trans GM cars with CC (4 terminal). They're about $10 at auto parts store.
You could probably use the same type of switch for your clutch pedal.

[BigBlockOlds]

Thanks for the help.

I was looking at Rostra's website and saw where they do offer GM stalks. Unfortunately, the only one they have with the "chrome" base doesn't have the wiper delay option. The one with a wiper delay is all black.

Not that big of a deal but would be nice if they had one with the chrome.

[BonzoHansen]

This peaked my interest as I was recently thinking it would be nice to have CC as I have a heavy foot. I'm looking at the DD units. Looks like the Rostra stuff in DD boxes.

http://www.dakotadigital.com/index.c...prod/prd48.htm

Anyone know the PPM from an 99 Z28 T56? Is it 4000ppm?

Anyway, looking at the control unit, is there any reason why you couldn't mount the whole unit under the dash and just run the cable through the fire wall?

[FULMNTE]

I installed an Audiovox CCS 100 unit in the Monte and it works perfectly...

[garys 68]

Double check on the stalks if they'll work with your control system. I bought one to work with a GM LS DBW cruise control. Turns out all their stalks are Ford style, NC. Only the dash mounts are GM, NO.

[BigBlockOlds]

Your talking about the Dakota digital stalks right? Their stuff looks like reboxed Rostra units as mentioned above but they only offer 3 different stalks. All of which look nothing like my original so I doubt any of those would work.

This is a picture of one of the Rostra units that looks about identical to mine, except that it doesn't have the wiper delay. If it did then it would be a perfect replacement:

[dontlifttoshift]

Dakota Digital is selling rostra stuff. The stalks are either ford or GM style the difference is normally closed or narmally open switching on the on/off portion of the stalk switch. The rostra box itself will work with either switch.

BBOLDS there should be only four wires coming out of the cruise swtich that are related to the cruise. I don't see any reason why it wouldn't work.

Here are the instructions. you will see the 4 wire connector between the switch and the unit.
http://www.dakotadigital.com/pdf/crs-2000.pdf

T56 should be 17 pulses per REVOLUTION not mile. Most late GM transmissions with vss are setup this way, also the vss on the TKO 5 speeds is the same. You may need dakotas speed signal interface to work properly or your ecm/harness may havve a vss output that you could tap into.

Lokar makes a bitchin cable to replace the Rostra cable, that is engineered to go throught the firewall...it has a bulkhead built right in. If you are carbureted it comes with a pretty cool little piggy back deal that works well with their throttle cable.

http://www.lokar.com/product-pgs/ext...ol-cables.html

Donny

[BigBlockOlds]

Very cool! So it looks like I can just use my stock switch as it does have 4 wires.

Even cooler is that I have a Lokar throttle cable already so adding the Lokar cruise control cable would match really well.

Thanks,