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Cruise control
#1409066 Sat May 08 2021 11:47 AM
Joined: Apr 2005
Posts: 2,837
Has anyone installed an after market cruise onto their old ride? The last one I did was a Sears unit where one glued a magnet to the drive shaft. It seems Rostra is the one most touted now and wondering how difficult the install is. Ididit has one for $225 which is the lowest price I've found and one now has to choose between one with an electric speedo or cable driven. The old right knee locks up if left in one position for an extended time so cruise control is now on the calendar. I'll let the moderator decide if this is General, Electrical, or Drive Line, qualifies for all.

Re: Cruise control
coilover #1409099 Sat May 08 2021 05:09 PM
Joined: Apr 2016
Posts: 650
I'm using Dakota HDX gauges with their cruise control and GPS speedo.

Old enough to know better, too young to resist.
Re: Cruise control
coilover #1409284 Mon May 10 2021 03:42 AM
Joined: May 2005
Posts: 176
Not exactly 'aftermarket' but I used a system from a late 70's GM car, probably a Gran Prix. Mounted the controller on the inner fender and the canister under the dash to operate the pedal directly and I am quite satisfied with it. I like those old simple systems with one button to operate it. It does not control the speed as accurately as the newer digital systems. Lose a couple mph going up a steep hill and maybe gain some going down, but it sure does help on a long trip. It might be kind of hard to find one of those systems now but this was late 1990's when I built it.


Re: Cruise control
coilover #1416865 Tue Jul 13 2021 06:09 PM
Joined: Jul 2016
Posts: 45
Discounting the safety side of things, the manual throttle works well on wide open spaces and flat roads!

1959 Chevy Apache Stepside Truck
Re: Cruise control
coilover #1416887 Tue Jul 13 2021 09:29 PM
Joined: Sep 2013
Posts: 1,186
"Discounting the safety side of things, the manual throttle works well on wide open spaces and flat roads!"

Works for me on long empty stretches when my right foot/leg need a break.


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1951 Farmall Super A

Re: Cruise control
coilover #1416889 Tue Jul 13 2021 10:45 PM
Joined: Feb 2004
Posts: 23,004
It would be a lot simpler and less expensive to fabricate a left foot throttle pedal, and avoid the surging acceleration/coast modes of most cruise controls and the 2-3 MPG loss of fuel economy cruise control usually causes. Cruise can't anticipate hills and tip in a little extra gas to avoid bogging down and downshifting constantly.

The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Cruise control
coilover #1417008 Thu Jul 15 2021 12:30 AM
Joined: May 2005
Posts: 176
I just returned home from a 1900 mile road trip in the 59, used cruise almost the whole trip generally 70-80 mph. in the flat land of western Oklahoma and Kansas I let the cruise take over. In the hill country areas I just over ride the cruise and tip in a little more speed anticipating the hills and it worked out well. No bogging, no downshifting, minimal if any loss of fuel economy and much less fatigue. I would not leave home without it.


Re: Cruise control
coilover #1417035 Thu Jul 15 2021 04:31 AM
Joined: Jul 2014
Posts: 284
This spring, I installed a Rostra unit on my 1-ton and took it on a 4000 mile trip loaded with a camper. My leg and foot got very tired before, pushing against the return spring at nearly full throttle for hours at a time. Rostra works well, though the safety tach wire and the MSD ignition do not get along and I had to cut the wire to keep the CC from dropping out randomly or so it seemed. I think it drops out when the MSD switches over from multi to single spark at about 3,000 RPM. I used magnets on the driveshaft. Previously I had a unit that was made by Rostra but sold through JC Whitlney and ran on vacuum. At highway speeds with the camper there is so little vacuum that it never worked. So the digital was a huge upgrade. The way it's set up you have to shut it off to down shift on hills. I'll install a clutch switch before the next trip. All in all I thought it was well worth the money and time it took to install.

51 3800 PU, 55 235 (w/cam, headers, 2 carbs, MSD ign.), SM420 & Brown-Lipe 6231A 3spd aux. trans, stock axles & brakes. Owned since 1971.
Re: Cruise control
coilover #1417406 Mon Jul 19 2021 04:32 PM
Joined: Feb 2001
Posts: 7,003
I think mine was from rostra from Ron Francis. The clutch release switch quit working and the manufacture is owned by someone else and was unable to help. I have a habit of slowing down when I see difficulties.,and the brake pedal switch still works. Also, I had an emergency cancellation switch installed. They may all be difficult to calibrate it is extremely difficult to do. But they all might be the same.

Ron, The Computer Greek
I love therefore I am.

1960 MGA Roadster Sold 7/18/2017
1954 3100 Chevy truck in the Gallery
2017 Buick Encore
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