924Board.org

Porchenewbe · Joined: 04 Jun 2004 Posts: 30 Location: stoke on trent

Hi all.

I have a '83 5 speed 924 and i have been looking at fitting cruise control. I have looked at the audiovox ccs100 which sells for around $100. Has anyone fitted this system or for that matter any other system? I have recently fitted a more expencive kit to a miata/mazda mx5 and it is very impresive but wondered how well the 924 accepts cruise?

Thanks for reading

John
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Riding a steep learning curve about all that is 924.

My first porsche ... I'm only 19..But loving it (except the insurance) ... quite some car.

Ozzie · Posted: Sun Apr 10, 2005 7:59 am Post subject:

Just fitted the cruise to mine, $200 here in Oz.
I wired it as required and hooked the sensor to the rear wheel CV.
It didn't work at all cos I had a vacuum leak.
Fixed that and ran fine.

Fairly easy for an auto.
With a manual you have to fit a clutch switch as well.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Gram · Posted: Sun Apr 10, 2005 9:44 am Post subject:

Interesting. Did you fit the same brand, Audiovox, ozzie?
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'82 924 NA Euro (hers)
'98 Audi A4 TDI (ours)

Ozzie · Posted: Sun Apr 10, 2005 9:59 am Post subject:

No. Just some after market unit from Supercheap auto.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Ozzie · Posted: Sun Apr 10, 2005 11:53 am Post subject:

A warning about cruise controls:

If your car loses traction, eg, dirt, water, ice while cruise control is on the unit will try to accelerate as the car slows down.

This is not what you want on a slippery surface.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Porchenewbe · Joined: 04 Jun 2004 Posts: 30 Location: stoke on trent

Thanks guys, good stuff. Thanks for the heads up about the slippery surfaces, but I only plan to use it on the motorways over here in the uk so shouldn't be an issue.

Has anyone else had any experiences with cruise control????

Cheers.

John.
_________________
Riding a steep learning curve about all that is 924.

My first porsche ... I'm only 19..But loving it (except the insurance) ... quite some car.

Lizard · Posted: Fri Apr 15, 2005 8:31 am Post subject:

only cruise control I have ever used was the factory 1 on the 928, but they tend to slip and then let go so you would all of asudden start loosing speed, and they tend to use more fuel, so I just used my right foot
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3 928s,

Roger · Joined: 06 Jan 2003 Posts: 1235 Location: Cordova, TN

Ghostcloak · Joined: 15 Mar 2005 Posts: 42

Yeah, generally cruize control can help save gas. How? by keeping the speed of your car more constant. There can be much more human error in trying to keep your foot on the pedal at the same position, therefore you keep on accelerating and decelerating the car (this may be slight changes depending on how much coordination you and you foot have, but generally speaking, cruize control can do a much more accurate job) Also, as you know, when you accelerate a car, you are creating more force. Following up on Newtons second law (I believe), the greater the force you apply, the greater the resistance. So, if you continuously accelerate and deccelerate, you are not only using more gas but you are making a bit more wear and tear on the car engine and other parts. Is it that noticeable? Probably not. But just for statistics sake, I commute about 40 miles a day. About 30 miles is highway. I have cruise control in my probe, and if I USE my cc, I can get between 29-30 miles per gallon (when I compare odometer to the number of gallons I fill the tank up at the gas station). However, if I go one week without using the cruiz control on the highway, I get somewhere between 27-28. I personally don't find this as any coincidence... The logic makes sense to me... Hope it sounds right to you guys ^_^
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1993 Ford Probe SE
(FOR SALE!)
1987 924S (Purchase Pending!)

Ozzie · Posted: Fri Apr 15, 2005 8:37 pm Post subject:

For me to got to the nearest State Capital is nearly 1000miles
Try doing that without CC and it is a long tiring trip.

I find the fuel economy is better with CC than without.
_________________
Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance