Improving Vacuum Cruise Control, and Linkage Help.

[IsaacHayes]

Any ideas on how to improve Vacuum based cruise?

I'm thinking maybe hook it to the vacuum ball, but that might suck it down for the other stuff that runs off of it too fast.

Or maybe give it it's own dedicated vacuum ball?

What do you think? I haven't installed my vacuum gauge yet to see how bad the vacuum drops but on big hills it just stops pulling on the throttle. I wonder if the manifold vacuum drops too much for it to keep pulling, or if it just runs out of cable length (don't think so as I've felt it pull the pedal more at times).

...

Another thing, any ideas on hooking up the cruise cable to a newer TB that doesn't have the spring return? So that when you go WOT, the cruise cable doesn't bunch up and snag on things? I think the new ones have as swivel and when the TB opens up, the cable slides straight through the end of the swivel outwards... Is that how it works???

If so maybe I could just make a long stiff iron wire that would be like a long loop or rail, that the metal stud off the linkage could slide on ??

Or maybe a ball-chain, but then you run the risk of it bunching up and then tangling or catching something and then the throttle not closing....

Ideas?

[pocket-rocket]

Why not put another vac ball with a check valve in between it and the supply so other stuff cannot use the vac built up in the cruise controls vac ball?

[IsaacHayes]

Yeah that is another idea I thought about.

The way it is now, the cruise goes right off the manifold. No vacuum ball at all. Is this normal?

[pocket-rocket]

I've never traced back my cruise setup. I would honestly thing it would run to a vac ball to have some vacuum in reserve so that when your vacuum bottoms out, you still have vacuum there for things (like cruise) that need it. As for the linkage problem, the only 60v6 I've modded is a LQ1, so I can't help you there :P

[IsaacHayes]

Yeah, I wonder how stock is. Using the vacuum ball is a good idea I think, I wonder why mine just goes to the manifold... It is aftermarket though. There is a vacuum line from the vacuum ball with a capped T coming off it close by I could try using that and see what happens. I wonder if that's where the stock cruise used the vacuum from. I always wondered what that T was for.