Switching the N75 on / off.

[dmmsta]

Hey,

After the fun and games in the snow the last few days I was wondering if the following would cause any problems??

Could a switch be put inline with the N75 to enable it to be switched inside the car.

Reason for asking was that I forgot to reconnect it after I fitted my 007P and it only give ~ 6psi when not connected.

Would be a useful way to limit boost in adverse conditions / when the wife is driving ( )

The question is more whether this will cause problems elsewhere?

 

[Davem]

Dont people bypass the n75 anyway? :S or am i thinking of something else. If so then cant see why not.

 

[Lodgey180]

they bypass the n75 by using other boost controllers i belive.. i think it will bring a light on over time

 

[Lodgey180]

doesnt this go into overboost though when n75 is bypassed..

 

[Muttley]

N75 is the turbo vane (or wastegate if you don't have VNT) control element. Switching it out would leave the vanes in the fully open position or the wastegate open. Neither is good for the car.

N249 is frequently bypassed in 1.8T's, it is the "dump valve" controller. N18 is sometimes bypassed, it is the EGR valve controller. I've never seen N75 bypassed, it will cripple the car unless something else replaces it.

Are you sure you don't mean N249, since you were fiddling with the "dump valve"?

The cars standard systems, TCS or ESP, will limit wheelspin and ABS will give you the best brake performance you can get. The driver still has to remember to drive within the limits of visibility of the road ahead and the nature of the road surface.

 

[dmmsta]

Was a thought towards a cheap alternative to uprated boost controller.

I used to have a Blitz SBC-iD unit with the Power Monitor addition, and you could limit the PSI until car was moving...to avoid spin.

More of a thinking aloud thing...comments appreciated. Will just have to train the wife better when she's in my car