Originally Posted by
stevieturbo
Monitoring turbo speed can be good for general health and well-being of the setup, and it can be used for boost control. So logging it can be useful.
Sensor is not £300. Not sure why some other kits are a lot more though.
https://turbozentrum.co.uk/Speed-sen...-/-781328-0004
But if you dont intend pushing the turbo to its limits, then no it is not necessary.....although without knowing speed...you'd never know where it's limits are lol.
That is the problem mate, no sensor on my first gtr but the power just flatlined at 1.7 bar on e50 so the turbos I assume we're flat out, so even boost pressure limiting won't always work