Powerstroke + 103psi Boost =

[NeufUnSix]

 = Metal apocalypse.

No drag racing here, sorry.

[Buckethead]

Holy mother of... 

So... wha happen?

I mean, aside from "It made a horrid noise and then died."

[NeufUnSix]

Did you read the title? He boosted it to 103 psi of turbo pressure. It was a diesel Ford Powerstroke V8 (key word WAS).

[Xiphias]

What a sad end...

[Mother]

Bah, nuthin a little JB Weld wont fix

[Buckethead]

Did you read the title? He boosted it to 103 psi of turbo pressure. It was a diesel Ford Powerstroke V8 (key word WAS).

It was intentional? Gah. Darwin at work.

I kinda figured maybe a waste-gate stuck or something.

Raises the question "why?" but if he's dumb enough to do that do his engine I'm not sure I want to know.

[Jarvicious]

That can't be possible right? 103? The general rule of thumb on boost is around 12 horse per pound isn't it?  I've heard of guys blowing their little 4 or 6 bangers at like 21 psi, but that's just make the beast with two backsin rediculous.  What the hell kind of boost guage goes up to 100 anyway?  Who was doing the measurements on this attrocity?

[x136]

A hundred and three PSI? What the christ did he think was going to happen?

Darwin at work.

Unless he died or blew his nuts off (Sorry, there's no way a member of the fairer sex did this. ), Darwin doesn't come into play. He's just a garden-variety idiot.

[Monsterlover]

I need to see proof of 103psi. 

A turbo by itself won't make that much boost, it can't.  It's way way off the efficiency map well before that pressure.

Turbos work with 14.7psi to start with (atmosphere) and build pressure off of that.

Now, some diesel semis have 2 turbos, one feeding the other.  In that case, you get this sort of exponential result.  Say turbo A makes 25psi and feeds that to the inlet of turbo B which can then spit out 45 or 50psi because of the increased inlet pressure. 

Still a long way from 100 though.

In any case, I loves me some destroyed blocks

[herm]

I need to see proof of 103psi. 

A turbo by itself won't make that much boost, it can't.  It's way way off the efficiency map well before that pressure.

Turbos work with 14.7psi to start with (atmosphere) and build pressure off of that.

Now, some diesel semis have 2 turbos, one feeding the other.  In that case, you get this sort of exponential result.  Say turbo A makes 25psi and feeds that to the inlet of turbo B which can then spit out 45 or 50psi because of the increased inlet pressure. 

Still a long way from 100 though.

In any case, I loves me some destroyed blocks

the new fords have dual turbos under the hood
not saying that the cause here, just adding information.

[Rameses]

A buddy of mine used to have an F-250 with a 7.3L Powerstroke in it.

He had an aftermarket turbo, aftermarket intake, aftermarket 5 inch exhaust from the turbo back (  ), ecu, planetary rear end, aftermarket transmission, propane injection (the equivalent of nitrous for a diesel), nitrous (step after the propane), and big injectors...

...the net result was ~750 hp and ~1,200 lb/ft of torque...  ...dyno proven.

I'd imagine this was essentially what that dude was going for with just a turbo.

[Hank]

Metal apocalypse.

what?


Thats brutal 

[Buckethead]

what?


Thats brutal 

[Mother]

We have an Engine with a Twin Turbo fed Supercharger

it makes some serious boost numbers

but nowhere near 103lbs

I think the guage goes up to 5 bar

[the_Journeyman]

The only experience I have with turbo diesels out side of school buses is the occasional borrowed Powerstroke for parade duty.  I will say I've seen 24psi out of a reasonably stock one pulling an empty goose-neck.  I wasn't floored, just accelerating up an on-ramp to highway speeds.  I don't know much about turbos either, so I have no idea how much more boost that particular truck could deliver.  I though 24 was A LOT of boost ~

JM