Cruise Control in 240Z

[DC871F]

Anyone have a good suggestion to what after market cruise control to install?

 

So many on the market. My first concern would be not so intrusive on the dash.

[Yarb]

Had one years ago. Switch mounted on the turn signal lever. Turned out to be a real mess. A lot of drilling and really ruined the look of the engine bay. Not to mention the model I had worked off the drive shaft and a lot of drilling into the body. I regret installing mine personally. It’s all been removed during the restoration. A lot of spot welds to fill holes.

[SteveJ]

Did you find an old JC Whitney catalog? I haven't looked at the modern systems, though your post prompted me to do a quick search.

No real experience, but I haven't been motivated to look into doing it on either of my cars, yet.

[duffymahoney]

I am designing a bolt in Drive by linkage setup, if you had aftermarket ecu, then maybe! 

[zKars]

Rostra seems to have the only commercial consumer cruise control system. Pic below of what I got recently from Amazon.

Just need a speed digital signal. There is a couple of options, you can splice a “thing” (I’ll find a link eventually) into your speedo cable, or if you have a GPS speedo, then do away with the cable all together and use this.

https://protunerz.com/collections/sensors/products/mechanical-to-electrical-vss-metric-with-connector

Now the hot tip is as Duffy says, go Drive by Wire and let your aftermarket ECU handle the cruise control duties. And idle control, etc. Its just a big step. There are actuators for triple carbs or throttle bodies too. See what efihardware in Australia  has. Cool stuff  https://www.efihardware.com/products/c598/dbw-components

I have seen a few folks working on nice solutions with 350Z throttle bodies and pedals, what are you doing Duffy?

 

Edited April 15, 2024 by zKars

[DC871F]

No ECU. 71 240

 

JC Whitney, the good ole days, some the stuff in there was just so horrible. Good memories.

 

I figured there was a GPS sensor that could be included with some units, I'm just starting to the search.

Edited April 16, 2024 by DC871F

[DC871F]

1 hour ago, duffymahoney said:

I am designing a bolt in Drive by linkage setup, if you had aftermarket ecu, then maybe! 

A friend about 30 years ago did this with his pickup, worked pretty good.

[crayZlair]

Quote

I figured there was a GPS sensor that could be included with some units, I'm just starting to the search.

The downside to using GPS for speed is that you need a good solid signal. The more satellites received, the more accurate.

If you are in a wooded area, or an extremely cloudy day, the cruise might not work as well as intended.

[duffymahoney]

I will have a bolt in drive by linkage actuator, that goes behind the firewall.  I have it 95% done. I will also offer a double pull cam for it as well, so two throttle cables.  

 

It will use the 350z pedal.