Originally Posted by dave3235
Bearings in a turbo are a bit like an un balanced prop, you won't get peak speed boost.To much play and the veins wobble and touch the turbo housing and bang goes the turbo only saying.
Anyone second that or am I alone on this.
That is definitely true, but my point about the importance of the boost and EGT gauges, is to keep the engine. It is very easy to destroy a boosted engine if the exhaust gas temperature is excessive, and the only way of knowing if the EGTs are within safe limits is if they are monitored.