• We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.

overshoot boost and set point

Joined
Sep 1, 2014
Messages
18
Age
64
Country
USA
Snowmobile
2014 yamaha viper xtx 153 turbo
I am setting up sled for a trip west. My question is, I don't have enough snow to hold it pinned but when I punch the throttle for short burst prologger is showing 13lbs plus. Is this just overshoot (which is set at 15lbs) set point is set for 7.5lbs or do I have a bad controller or prologger not functioning properly.
 

Where is your pro-logger reading your boost from?
 
It is an might stage one with head shim getting the pressure from top of intercooler.
 
A turbo can over boost if you blow out the track but its just a split few seconds and then as you hold it it should settle back to the set point, if it dont then you should reset the waste gate or if you have a automatic boost controller there would be something wrong with it. It start to settle back once it hooks and load the motor.
 
If you have a Manual boost controller take out the ball and spring this caused my sled to over boost off the hop.
 


Back
Top