hey all,

got myself into a pickle yesterday I had sum fun with a vy calais s/c and then lost booost. I heard a hissing noise which sounded familiar like a exhaust gaskit, on inspection found what looks like a bolt missing in the rear of the turbo has threads and is definately where it is leaking.after finding a suitable bolt and put it back together I took it for a test drive and now only get 5psi on a 10 psi tune at ful tilt. im guessing im loosing boost through a leak somewhere rather than something I have done? has anyone noticed this bolt missing? could the computer shut boost down because of the exhaust leak?

hey mate, I wouldn't think that one bolt would have caused it to lose that much boost, have you checked all your pressure hoses are still on? when I first flashed mine the hose from h/light to t/body used to blow off on 10psi.

well join the club 1 8mm bolt and lost that much boost suprised me. however ive had the hoses of a few times and think main cause is the clamps are a bit dickie..

thanks for the imput.

cheers:)

Yup, loose bolts are quite common Click here Lucky for me I found my bolts.

Replacing the standard hose clamps with T-bolt clamps may help the boost loss

With that bolt missing it is a straight through hole to the inside of the housing, and would loose lots of boost.

cheers guys

cant belive im not the only one it happend 2 I also was missing the dump pipe bolt..