oil pressure cut out

Forum for general discussions on engine tuning, not specific to a particular motec ECU

oil pressure cut out

Postby hornet75 on Sat Apr 30, 2011 9:41 am

I was just wondering how it is possible to cut the engine when/if oil pressure drops or belt breaks with m400 also can it be done with m4/m48
hornet75
 
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Re: oil pressure cut out

Postby Sean on Sat Apr 30, 2011 10:54 am

With M400 you could have the Y axis of the rpm limit table as oil pressure, I am sure there are other ways.

However, are you SURE you want to do this? In a circuit or roadrace application I would be very hesitant to do this, as the consequences when the car or bike crashes due to the power being cut suddenly and without warning in a corner can be dire. You imagine being in a 150km/h corner with 1.5 lateral g on and the motor stops..... round and round we go, at best, or you get whacked by another competitor, or both. You could go to a 3d table of rpm, oil pressure, and lateral g, but it starts to get complicated, and that still doesn't count longitudinal g.

We have just been through all this with a car I work on, for us the main thing was to make the oil pressure alarm very distinctive, and educate the driver that when this distinctive alarm comes on he shuts it off, when safe to do so.

Anyway, thats just my thoughts, your milage may vary...
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