Here's A Triple-Turbo Cummins Diesel Blowing Itself Apart On The Dyno
The nature of dyno testing highly modified engines does mean things go bang from time to time, but we’ve never seen a motor tear itself apart quite as dramatically as this one did.
The engine in question is a triple-turbo Cummins diesel, built by Ohio-based firms D&J Precision Machine and Firepunk Diesel. Apparently it was running 146 psi of boost and around 2000bhp at the time of the test.
When it does go, the block, head and turbos blow clean off the bottom end. The crank continues to turn briefly after the majority of the engine exploded away from it, leaving conrods and at least one mangled piston flailing wildly in the air.
It’s quite a sight…
Source: Road and Track
Growing up on a diet of World Rally Championship highlights and lengthy Gran Turismo 2 sessions, a life in cars was as good as inevitable for Matt.
Comments
Reminds me of the ‘European Maid’ tractor puller, blew the engine in the same style then ran over the block
Yeah, when high HP diesels fail it’s always spectacular because they’re running 100+ psi of boost and the bottom end can usually take it.
“it was running 146 psi of boost” That pretty much explains it
How much does that translates in bar
The amount of black smoke coming out of those diesels is ridiculous. Seems like unnecessarily excessive pollution. The people standing around it do not want to breathe that stuff in. It’s not just carbon, its a nasty mix of all sorts of hydrocarbons and oxides.
That isn’t unnecessary. Diesels don’t have to be at the stoichimetric ratio to run. They make nore power if they run rich. If you have unburnt fuel coming out of the exhaust pipe that means the engine is burning as much as it can. Turning it down to where there is no smoke means the engine can burn more fuel and isn’t making as much power as it could. Adding enough fuel to a stock engine to make it so you can’t see behind you is unnecessary, but when you have lots of boost you should have quite a bit of smoke until you build boost. The following picture is abit less than how much smoke you should have from an otherwise stock engine when trying to make HP gains.
That is violent! Wow…
No wonder truckers call Cummins engines “Cummapart”
Wow, the Ram’s like a train at low RPMs on the trackside dyno!
My reaction:
WHAT THE ABSOLUTE F*CK THE BLOCK SEPARATED FROM THE CRANK
My reaction:
BWAHWHATTHESHITISABWRAWHPAHKGHARTSHIBVFHASDJKGFBSHALFGA
Well I’ll make sure to stop at 145 psi because i want to play it safe.
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