Rev limiter?

[thebeno]

The only thing I have wrong with this car is the lack of a rev limiter, the noise of the engine even at 4500rpm is a gentle purr, and keeps asking for more!!

Im worried that I may over rev and blow something. Has anyone fitted a limiter?

 

[UncleFester]

Far as i can tell there's no point taking it over about 4200rpm as there's nothing more there in terms of torque or bhp - it's just revving it for the sake of it. Not that i don't take it over that sometimes, but that's usually in 1st or 2nd when it catches me out and the TCS is fooled.

 

[thebeno]

No, Im talking of taking it over 4200 rpm accidentally, I would not do it on purpose. I guess its the fact that the car is new and I dont know its "sound" yet.

 

[UncleFester]

I've had mine up to and just over 4500 with no problems, i doubt the occasional accidental excursion will do it serious damage

 

[andycupra]

i thought diesels did have limiters / restrictors

thougt that was one of the tests at the mot before they stopped it as they were blowing up a few!

 

[thebeno]

Petrol maybe, dont think my pd150 does

 

[andycupra]

thought they did, just worked in a slightly different way.

a petrol car cuts off fuel abruptly, but a diesel reduces the fuel gradually until it reaches zero at maximum rpm. so it appears to do this smoothly rather than a sudden stop of acceleration.

 

[thebeno]

Oh maybe your right.

 

[Reg]

A petrol limiter acts by cutting the ignition, diesel's don't work the same way of course so the limiter will be different - but there is one.