Agree. Check your charge pipe and couplers. Happen to me twice.

And deltagate wastegate have bad names because of the drag manifold, not the wastegate.

 

LOL, Nick ,you better hope it's not your chargepipes now. If it is you'll NEVER hear the end of it lol

 

Yeah.I talked to one of wamers friends with a pretty good amount of knowledge on turbo setups and we think its the wastegate.

 

Wastegate Huh???

/Thread!!!!!!!!!

 

lolz at joo

 

Can't be the waste gate, as other sead, even open waste gate you will get a little amount of boot at high Rpm, even no wastegate at all will give you little boost(depend of manifold)... it is most likely a coupler issue. Especialy that you say its after 2 gear of boost. And for the deltagate I never had any issue with mine, never creep either.

 

You would know if the wastegate was staying open, not only would it still creap a little but but the sounds of the car would be wayyyy off.

 

have you checked your manifold at all.

i wouldent be suprised if your SSAC manifold cracked. sure wouldent be the first time.

 

Last time I ran a tial/57tim/b16 w/o the spring, it hit ~4psi at redline. The only way its your WG is if the difram broke (leaking boost) at the same exact time your spring broke.

If your BOV did some how get messed up with the cold, its possible it got stuck when it opened between gears, leaking all boost. There's also the chance it just didn't open, and allowed the turbo to shoot up to its surge pressue (limit), or close to it. At the high wheel speeds/flow you'd see at redline, a 60 trim's surge limit could 20-50% higher than the psi you were running. Also at those high speeds, it wouldn't take long to hit that, seeing as how the WG is slapped shut as fast as the TB when you shift. It really depends on the noises you heard & things you saw (psi the instant it happened), and how clear you remember them. Chances are an gel-filled boost gauge wouldn't react that fast, esp in sub-zero temps.