Quote:
Originally posted by Apparition
Isn't a "boost spike" basically uncontrollable, and since its a spike, that'd be to maximum boost with NO control?
If what I'm saying is correct, I don't think he had time to hear any ping except the possibily of a piston flying through his hood. 
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Depends on what causes the spike. In this case, it was the signal line coming off. But to build up to 17 psi from 4.5 psi, there is plenty of time to notice a difference. A heavy foot and maybe even a loud stereo can drown the sound. So extra attention should be used. Not that I blame him. You start feeling that extra power and you don't necessarily question it. Typically, with wastegate failures that cause boost spikes, it only spikes a few psi at most.