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  #1  
Old 08-07-2018, 09:30 PM
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Jeff in Pa Jeff in Pa is offline
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Default A diesel can only hold so much boost

Pretty impressive hood bulge

https://www.youtube.com/watch?v=npJaxhT7UpQ
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  #2  
Old 08-07-2018, 09:48 PM
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Like anything, diesel engine blocks have a physical stress limit. This one went beyond the limit. Bet it's not covered by warranty!
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Old 08-07-2018, 11:13 PM
TNTs CC TNTs CC is offline
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It's not the first time that truck has lost an engine, just the worst.

https://youtu.be/D1aUMiKpbFY
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GT3204 207hrs - 48" 289 deck, 45" 2-stage snow blower, 54" blade and angle cylinder
3204 580hrs - 48" 289 deck - Parts Tractors - 3208 560hrs (rusty) 3 hyd circuits, 3pt hitch, 44" deck - 3165 rust free roller

1650DH 54" blade, Xtreme cat-0 3pt, 44" deck, filled 23x10.5-12 Tru-Powers
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Old 08-08-2018, 12:04 AM
J-Mech J-Mech is offline
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Yeah.... they can only hold so much boost... but they are dumping a lot of fuel in there too, lol. Like Stan said, everything has a limit. Pretty impressive how far the limit really is before a failure like that though. The old K series Kohlers are the same way. You can take an old K341 (any of them for that matter) a looooooong way from stock.
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Old 08-08-2018, 08:13 AM
TNTs CC TNTs CC is offline
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Quote:
Originally Posted by J-Mech View Post
Yeah.... they can only hold so much boost... but they are dumping a lot of fuel in there too, lol. Like Stan said, everything has a limit. Pretty impressive how far the limit really is before a failure like that though. The old K series Kohlers are the same way. You can take an old K341 (any of them for that matter) a looooooong way from stock.


Running nitrous probably doesn't help either.
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3240 870hrs - 48" 289 deck, front hitch, 3 hyd circuits, 54" blade w/hyd angle, 45" 2-stage snow blower, Sims cab, 5 42# suitcase weights and 70# rear wheel weights
GT3204 207hrs - 48" 289 deck, 45" 2-stage snow blower, 54" blade and angle cylinder
3204 580hrs - 48" 289 deck - Parts Tractors - 3208 560hrs (rusty) 3 hyd circuits, 3pt hitch, 44" deck - 3165 rust free roller

1650DH 54" blade, Xtreme cat-0 3pt, 44" deck, filled 23x10.5-12 Tru-Powers
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Old 08-08-2018, 08:46 AM
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Quote:
Originally Posted by TNTs CC View Post
Running nitrous probably doesn't help either.
Lol, no, it doesn't.
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Old 08-08-2018, 07:50 PM
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Quote:
Originally Posted by Jeff in Pa View Post
Pretty impressive hood bulge

https://www.youtube.com/watch?v=npJaxhT7UpQ
Yep... they turned that one up a little too much!!
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Old 08-10-2018, 08:45 PM
V30crewcab V30crewcab is offline
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I Buy parts from these guys.
that was an all motor run, at 120mph, the pump rack stuck wide open, the air shutoff safety malfunctioned, and he kicked it into neutral to not run off the 1/8th mile track. it hit 8k, and threw a rod which hurt the block, and the remaining ones still running under high boost just split the block along the cam line. shrapnel went thru a front tire and damaged the rim also, but he managed to get it stopped without rolling or hitting the wall.
https://www.youtube.com/watch?v=co_aHanY1Ek
theres some more videos but can't find them at the moment.
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Old 08-10-2018, 09:05 PM
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Mighty impressive save
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Old 08-10-2018, 11:09 PM
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Saw somebody I knew at a tractor pull. I didn't know he pulled. The next week he came into work and I had to talk about the tractor. He has a Allis Chalmers D21 diesel. Man it was so neat hearing that thing spool up. When they drive it up to the line they keep spraying ether in the turbos to keep it running. He told me at roughly 2,000 rpm it starts making enough boost to keep running on its own fuel. Okay it has 4 turbos and to me that didn't make sense on a 6 cylinder. He explained first 2 paralleled turbo put out 75 pounds of boost into 3rd turbo and jumps the boost to 150 pounds and 4th turbo puts out 300 pounds of boost. That tractor started life at 100HP and now is roughly 3,000HP. I asked how expensive is all that HP. He rattled off all kinds of numbers for the various goodies. The one that got my attention. The head $200,000.00. He said that is what makes it all work.
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