= Metal apocalypse.
No drag racing here, sorry.
(http://img150.imageshack.us/img150/636/ps1qb4.jpg)
(http://img150.imageshack.us/img150/1914/ps2iz7.jpg)
(http://img227.imageshack.us/img227/4628/ps7xl2.jpg)
Holy mother of... :o
So... wha happen?
I mean, aside from "It made a horrid noise and then died."
Did you read the title? He boosted it to 103 psi of turbo pressure. It was a diesel Ford Powerstroke V8 (key word WAS).
What a sad end...
Bah, nuthin a little JB Weld wont fix
Quote from: NeufUnSix on August 09, 2008, 06:00:41 PM
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.
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?
A
hundred and three PSI? What the christ did he think was going to happen?
Quote from: Obsessed? on August 09, 2008, 06:18:56 PMDarwin at work.
Unless he died or blew his nuts off (Sorry, there's no way a member of the fairer sex did this. :P), Darwin doesn't come into play. He's just a garden-variety idiot.
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 [evil]
Quote from: Monsterlover on August 09, 2008, 10:05:12 PM
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 [evil]
the new fords have dual turbos under the hood
not saying that the cause here, just adding information.
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 ( :o ), 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.
Quote from: NeufUnSix on August 09, 2008, 05:52:38 PM
Metal apocalypse.
what?
(http://www.umbabamaumau.biz/images/deathclaw11.jpg)
Thats brutal ;D
Quote from: Hank on August 10, 2008, 12:56:18 AM
what?
(http://www.umbabamaumau.biz/images/deathclaw11.jpg)
Thats brutal ;D
[laugh] [laugh] [laugh]
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 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
Quote from: Mother on August 10, 2008, 06:48:09 AM
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
Damn, 5 bar = 73.5psi.
Awesome [evil]
As mentioned above, I knew the newer fords have dual turbos, one feeding the other. I guess the point of my reference to two turbos in series is that even with the 2 in series, I don't think it's possible to get more than 50-60psi (just guessing)
Now, maybe if the second turbo fed a third turbo. . .
[evil]
Maybe it's Canadian 103?
What's the conversion factor? [cheeky]
[laugh]
Quote from: Rameses on August 09, 2008, 11:54:49 PM
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 ( :o ), 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.
Got a house you want pulled off its foundation? ;)
Gale Banks has some pretty cool turbo diesel projects, but they're only at 38 psi or thereabouts. 103 had to have been some mistake.
They actually make turbos that build on each other's boost? Most of the time on the duals it's quicker spooling unit to take on the low rpms and then a big boy to hit the power band where it counts. Maybe I need to increase my diesel knowledge. Still seems fishy. I think we should go the Canadian Conversion route.....
No, they don't.
Take two normal turbos, and instead of both feeding the engine, one feeds the second. Get busy with google, search "turbocharger pressure ratio" and get to learnin!
It's called running them in series. It's the only way to get crazy boost pressure AND still be efficient. Note nonefficient = output temps of the charge is very high. If you try to make 50 psi with one turbo your going to have air so hot you'll never cool it enough to be useful. Detonation will be a giant problem.
ive built a few diesels.
Strongest running was a friends 5.9 cummins. Garrett ceramic ball bearing water cooled turbo. fed by a holset. It was around the 1100 foot pound mark.
103 lbs isnt unheard of. It is in the world of street trucks and stock blocks.
Just look at what the tractor pull diesels make. Its some serious boost.
Anywhere over 50 lbs on a stock ford block is asking for trouble. Ford sucks anyway.
Well, I have seen more than a few ford blocks split down the middle ;D
Quote from: Mother on August 10, 2008, 06:48:09 AM
I think the guage goes up to 5 bar
5 bar = (about) 72 psi. How much boost did it actually make?
103.. just boggling and well dumb.
And wow, that's one hell of a thrashing on that engine. I'm impressed.
Quote from: DRKWNG on August 10, 2008, 08:08:08 AM
Got a foundation you want pulled from under a house? ;)
Fixed ;)
[laugh]
Phone pole removal?
3350 FTW
http://www.youtube.com/watch?v=2d4HQ8ZM_2k
Here's a link to a 7 second cummins powered dragster.
http://www.cumminsracing.com/
With enough boost and fuel diesel go really fast ;D
warranty?
Quote from: yuu on August 10, 2008, 03:07:04 PM
5 bar = (about) 72 psi. How much boost did it actually make?
3-4
I believe I read in the manual that max boost was 3.8bar
but it is designed to live, not become slag like the above pics