Changing Rev Limiter

[205tunerke 4 1 Cars]

Can anybody tell me how to change the rev limit up to 7000rpm?

Planning to rebuild my 84 engine to 125pk pts kit specs.

Pts changed rev limit from 6500 tot 7000 rpm to get the 125pk.

Ditshing the revlimiter is not an option for me...

[jackherer 543]

Removing the limiter is achieved by removing a resistor from the ECU, I haven't tried but I imagine you can vary the limiter by changing the resistor to one with more or less resistance or even a potentiometer. If not you can just remove the limiter and fit an aftermarket rev limiter, you can usually find a used one on ebay for very little money.

 

Edit: I knew I'd seen it somewhere, R106 is the resistor in question - http://www.205gti.com/bosch/mods.htm

These pulses are then modified so that the rev-limit can be imposed by R106. The effect of the resistor is seen in the picture below. If the time of the pulses remains constant, than at certain revs the voltage no longer gets up, and the rev-limit has been reached. If the R106 is smaller, the time of the pulse decreases and the rev-limit raises.

Edited September 23, 2015 by jackherer

[205tunerke 4 1 Cars]

Thanx

As soon as i find a spare ECU i'll give it a go...

[205tunerke 4 1 Cars]

Stumbled upon a problem r106 is nog connecties in thuis ECU...?

[steve@cornwall 100]

I have a diode removed in my ecu to remove the limiter. 7000 is about as far a it revs anyway. (This is for the 1.9 ecu as far as I remember it doesn't apply to the 1.6)