So I'm getting on my car hard on my car this afternoon right, I'm going about 10 mph making a right turn, when I, for no reason, decide just to romp it, I floor it and I'm thrown back in my seat like I've never been b4, the damn t-25 is screaming...I mean, it usually whistles (spools) but it's SCREAMING, I'm like Uh, something's wrong, than I hear POP!! followed by the dreaded sound of little metal balls getting dropped on the floor. Of course my first reaction was to let off the gas, and I drove the rest of the way to work under vacuum, never building boost. So I pop my hood when I finally got there, hoping there was not a massive spillage of oil, and ..................... there wasn't...whew... It seemed that I didn't tighten the wastegate line hard enough when I changed it out a couple of days ago with blue silicone tubing. Oh well, oh yeah about the 20 psi thing..

I have the blitz dual turbo timer...

it has boost, peak boost, etc etc

Usually it never goes past .9 of boost (it says cm.hg)
Today on the way home, I clicked it to check my peak boost..

It read 1.71......soooooo....I think that's over 20 psi...

Got to thank the car gods now that nothing was hurt on her..






ALL STOCK!! except for this extra radiator in front of my stock bumper

umm, what was the pop?




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Silicon coupling?

That should have blown off for sure. I cant keep mine on over 15psi. Ive got to get them welded sometime soon.

the pop, I"m assuming, was the wastegate line blowing off.....oh well... let's hope that never happens again




ALL STOCK!! except for this extra radiator in front of my stock bumper

There have been a few discussions on the board about allowable psi on stock internals. I've have heard a lot of discussions, but the one that seems like it might apply the most in your situation is the one about "is 6 psi on a star kit the same as 6 psi on a hahn kit" Because they make different amounts of power... I say no.

You said you have a T-25 so I assume that you have a custom setup (I'd like to hear about it, by the way). The T-25 is much smaller than the 16G (the turbo that comes with the hahn kit), which is much smaller than the T3/4 (the turbo that comes with the star kit). Since they all have different flow rates and horsepower for a given amount of boost... I think that 20 psi on a T-25 would be much more safe that 20 psi on a 16G or a T3/4. Granted... I don't think 20 psi is probably safe for any turbo, but you get what I'm saying.

Anybody want to agree or disagree???

i think its the psi thats the engine killer not the cfm's that the turbo puts out. I was told that 6psi is 6 psi regardless of the amount of cfms that a turbo is pumping out.

since the t25 is smaller (smaller fins) the air it blows would probably be hotter than a bigger turbo, thus less efficiency and possibly more damaging, that's how i see it, i'm no pro :)