Hi all,

My car came with a six-pack induction system. For some reason, a previous owner milled down the choke tower on the center carb, so I don't have a choke. My climate is pretty mild, but I still sometimes need a little help during cold winter starts. I'm thinking about installing a cable-operated throttle, so I can increase engine rpm a bit during warm-up, then lower it back down to normal idle after a few minutes. Just curious to know if anyone here has done this, and how they went about it. Would also like to see what you used for cable, sources, etc. Thanks for any suggestions.

Roger

If there's a high-idle stepped arm on the primary carb's throttle shaft, try adjusting it so it works.
If not (milled choke horn may have invalidated the step), then sure, you can add a cable, but how it keeps the throttle open unattended might require some cleverness. There are industrial applications where a throttle is cable operated.

Cop spec M bodies had one from the factory.

Somewhere in a box I have a complete setup.

It essentially worked like a hand choke but instaed of operating the choke plate it operated the throttle.

Years ago, I owned a '72 911 which had mechanical fuel injection. Between the seats, near the parking brake handle, was a hand-operated throttle for just that purpose. It was very handy, and worked great.

Holley makes a idle kickup solenoid that I have used in the past, works really well and its adjustable on how much you want to open up the throttle.

Tow trucks used to have a cable-operated throttle so you could increase line speed on the winch. Been a while since I drove one (pre-'84) but IIRC, you pulled the knob out (like a choke) to the desired speed then turned the knob clockwise to lock it.


Tim

Had a 63 plymouth cop car that had a hand throttle to up RPMs.Was nice in winters warming it up.Rocky

This is how I would do it with an electric solenoid like was used on many cars back in the 70's. Seen many Q-jets with them.

Gus

Those were GMs answer to run-on after switching the car off.

It would work pretty well for what he wants to do, as well as the Holley solenoid chargerbr549 mentioned.


Tim

Yes, I like this idea! Easier and less obtrusive than running a cable. I'll check it out, thanks everybody!

I use the Holley piece on a 4 barrel setup. Easy to adjust and mount.

Pretty clean. So, does the solenoid just move a set amount, but you can adjust where it starts? What type of switch do you use to turn it on from inside?

When the solenoid is advanced, it holds the throttle open farther for a higher rpm. The hex can be adjusted by turning the hex (screw it in or out). Mine is controlled by the NSS. When the car is in P or N, the solenoid is retracted and the idle is controlled by the carb idle screw. When the car is in R, D, 2, or 1, the solenoid is extended. Setup this way allows me to have a higher idle rpm in the drive gears, and then when put in P or N, I have those rpms lower which helps it shut off without run-on.

I just happened to run across this, from an article on Six-pack engine detailing in Mopar Action, February 2010. I didn't realize this was factory.

I have one on my jeep even though it's fuel injected. Some of us 4x4 guys with manual transmissions install them because it allows us to keep the rpm up while one foot is on the brake and one lets off the clutch when crawling, hill climbing, etc. The one I use is like a choke cable except it has a tee handle that turns to lock. Push in gas pedal, pull out cable, rotate handle clockwise 1/4 turns, let go of handle and pedal.