599/612: Valet/Power Reduction Function

Where do you get those idiot valets? I gave my Murcie and 599 for valet driver in Moscow with no issues - except that on my Murcie LP he made a cruise around the block 'to find a free lot' although there were plenty of them ))) guess he wanted a chance to cruise around )))

 

I think a type of Corvette had that function and there have been more. It does make sense for peace of mind when handing someone else the keys. It would be good for the wife too... Or anybody else not too familiar with high power cars who could get themselves into trouble with them.
Limiting the potentiometer mechanically will work, electronically it is a bit more difficult since it is actually two counteracting potentiometers in one for safety.

 

@360: a block of wood under the pedal will work, of course!
Though it's better to do this in software I suppose.

 

Yes, never, ever, but never, give your Ferrari to a valet. When I have to leave my car at valet parking, I tip them enough to leave my car in front, locked, and I have the key.

I once had a valet say, "but sir we may have to move it". I told him the maître d' knows where we are seated. Have him get me and I'll move it!

 

I too would never hand over keys to a valet, but to the OP's question, one idea that comes to mind might be to have a hidden manual trigger switch for the Cat ECU on one side which would put the car into limp mode, and it would only run on 6 cylinders.

 

I increased the distance between my throttle and my brake pedals. I did this by having a custom brake pedal made which essentially moved it over "one hole".

 

You wouldn't want a switch that would "disconnect" the Cat ECU as IIRC, that would set a MIL which you'd then have to reset with an SD or other OBD2 tool.

What I was proposing was a switch and some associated circuitry which would simulate a "high" Cat temperature, which, when activated, would put the car in limp mode.

And yes, in limp mode, the injection for that side of the engine would be shutoff, so no fuel going into the non-running cylinders.

 

Sorry but is not more easy to control your right foot? ....

 

A simple approach would be to place an appropriate resistor, switchable, in parallel or series to the gas potentiometer. One would need to find out, whether the potentiometer is "high" or "low" in idle position and what the resistance range thereof is. The additional resistor may even itselfe be a potentiometer of appropriate range, so that one can find the best value by trial.

 

Even in limp mode the car has plenty of power to crash into something.

 

Very sorry ... i had read your first post too fast ..
Now I understand perfectly!
Sorry again ...

For example the depowered Ducati monster had a plate for stop the butterfly valve shaft .... but this solution on the motorized butterfly i think is no possible, is necessary go by electronics, as advised before by the other guys..
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Yes, the original 90s Corvette ZR1 had a valet key that disconnected the secondary runners to the intake and limited its power. But that was from the factory.

 

Hi,
Early i will go to my dealer for my things and i will ask to their mechanic about it (my friend).
Another important thing if you bring your car to other person, for me, is to prevent the traction control disable ....
regards

Fabio

 

In case you guys will find a solution to reduce the power for "valet use", it will not be fair for 599 owners without this solution.


Two 599 owners are going out for an opera or dinner.
First 599 with power reduction is parked safely by the valet, for the second 599 without power reduction, the risk of an accident raise X00 % if parked by the same valet.
"Ahh, the same car, also no power, i have to kick the throttle to get the car to the parking lot."
Boooom.

Another solution for limiting the throttle (meant not 100 % serious):
"Hey Mr., if you injure this car when you park it, you will be injured by me."


Daniel

 

Daniel, absolutely fair! The second 599 crashes into the rear of the first 599, obviously. So more or less equal damage = more or less fair ...