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Diy Cruise Kit

mrsr32

By mrsr32,
in General Maintenance

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jiffo Mentor

jiffo

Posted
Posted

Got one up in the shed to fit on the 32 when I get time.

Didn't think a vacuum style CC would work on a boosted engine but PM'd a bloke on GTROC and his car is working great.

Not an AP60 but a modded Nissan vacuum style CC on a 33 GTR.

Pretty sure Chris will have CC on his 32 too when it rolls out.

His install would be worth a look.

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89CAL Grand Master

89CAL

Posted
Posted

Vac style CC system should work with a Vac resevior and a 1 way valve. So it will hold x amount of vacum while your on boost which when your doing cruise speeds shouldnt be very long

An electronic system would probably be better but Vac system should still work

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jiffo Mentor

jiffo

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Posted

Should have mentioned, the one I have in the shed was previously on my son's turbo diesel Patrol, so I'm aware they work but wasn't sure if they'd be as stable as a stepper motor style.

Not a problem, it worked fine.

But the magnetic speed pickup is very corny, worth investigating if the stock signals can be used instead.

Also the control switches really look like a cheap add-on.

They offer gearstick knob buttons or a heap of other options, but they cost as much as the AP60 again.

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Ben C34 Grand Master

Ben C34

Posted
Posted

Should have mentioned, the one I have in the shed was previously on my son's turbo diesel Patrol, so I'm aware they work but wasn't sure if they'd be as stable as a stepper motor style.

Not a problem, it worked fine.

But the magnetic speed pickup is very corny, worth investigating if the stock signals can be used instead.

Also the control switches really look like a cheap add-on.

They offer gearstick knob buttons or a heap of other options, but they cost as much as the AP60 again.

The fact it was on a turbo diesel doesn't really mean it well work on a turbo petrol car. Diesels have no throttle butterfly and therfore produce no manifold vacuum. They use a vacuum pump to make the power brakes work. Anyway, tginking about it, vls had a vacuum caniater to store vacuum, and didnt really boost much when cruising, but an rb25 at highway speeds would produce boost when altering speed, so not sure if it would work correctly.

They seem heaps expensive for what they are.

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jiffo Mentor

jiffo

Posted
Posted

I see what you mean, this is why I'd PM'd the chap in GTROC to check how his 33 GTR worked and it was fine.

2JZtt Aristo also has a vacuum cruise and it's nice and stable. (once you mod the electronics to make it work over 100kph).

That poor little diesel, the Rd28 turbo has a throttle butterfly to pull a vacuum on overrun for the anti pollution gear, EGR etc.

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