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07-17-2019, 06:47 AM | #1 |
Person who doesn't update the user title
Join Date: Dec 2005
Location: La Crosse, WI
Posts: 8,924
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It's a tank engine.
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07-17-2019, 08:07 AM | #2 |
Nearly done.
Join Date: Jul 2007
Location: Teetering on the edge.
Posts: 1,134
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TW is right. HP is a calculation taken directly from the torque (HP = Torque lb-ft x RPM / 5252). The low HP figure is a result only of the low-revving nature of the engine.
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07-17-2019, 08:48 AM | #3 | |
Radical Centrist
Join Date: Jan 2001
Location: Cottage of Prussia
Posts: 31,423
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https://en.wikipedia.org/wiki/Chrysler_A57_multibank
Quote:
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07-18-2019, 09:55 AM | #4 |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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I'm curious about how those connecting rod internal bearing races work. They look like in the picture that there's a race on the bearings... Which makes me wonder how they got the bearing/race onto the crank.
Any help?
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07-18-2019, 10:10 AM | #5 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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This crankshaft is a one piece and is heat treated and surface hardened. The connecting rods and bearing races are split in the middle. The bearing retainers are also split in half and assembled around the crankshaft, and split races are in the block and main bearing caps. The roller bearings run directly on the hardened crankshaft.
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07-18-2019, 10:38 AM | #6 |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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Thanks, key phrase "split races", is a new thing to me. I think I can imagine it now.
Thanks!
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07-18-2019, 11:57 AM | #7 |
Junior Master Dwellar
Join Date: Sep 2007
Location: Northern California
Posts: 2,122
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Were the rollers illegal?
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07-18-2019, 09:59 PM | #8 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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Oh yes, very. Especially NASCAR who wants to make everything same same. Using those bearings cut down on frictional losses and you could use a smaller oil pump that took much less parasitic power from the engine. Might be good for 5 mph compared to a legal engine, and in NASCAR that's huge. NHRA it would be OK in modified classes but very illegal in stock, SS, even FX classes.
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The descent of man ~ Nixon, Friedman, Reagan, Trump. |
07-21-2019, 08:54 PM | #9 |
Goon Squad Leader
Join Date: Nov 2004
Location: Seattle
Posts: 27,063
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hey tw
you're wrong about your unswerving devotion to the temple of horsepower. Let me ask you this. When you have a nut on a bolt to remove (or tighten), do you, with your static, unchanging amount of personal horsepower, use your fingers and thumb, or do you use a wrench?
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07-28-2019, 02:27 PM | #10 |
UNDER CONDITIONAL MITIGATION
Join Date: Mar 2004
Location: Austin, TX
Posts: 20,012
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Weird. Any idea of what the history/circumstances might be?
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07-28-2019, 03:25 PM | #11 |
still says videotape
Join Date: Feb 2001
Posts: 26,813
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It's the site of Redstone quarries in North Conway NH. They quarried and polished granite like the massive column in the pic. I don't think they lasted long working from the late 1800's and shutting down sometime in the 1910's.
I didn't know the site was there until I rode into it.
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07-28-2019, 04:00 PM | #12 |
UNDER CONDITIONAL MITIGATION
Join Date: Mar 2004
Location: Austin, TX
Posts: 20,012
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Granite's expensive, right? Is it not worth someone's effort to get in there and take that column? Or are there just too many trees in the way, do you think?
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07-28-2019, 04:17 PM | #13 |
still says videotape
Join Date: Feb 2001
Posts: 26,813
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It's a state historic site now. I was surprised that amount of steel was still there. The column is accessible but there is a rail bed between it and the roads.
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If you would only recognize that life is hard, things would be so much easier for you. - Louis D. Brandeis |
07-28-2019, 05:10 PM | #14 |
I love it when a plan comes together.
Join Date: Oct 2009
Posts: 9,793
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You didn't ride your bike on top along the length of the column? After a balancing act like that, it could've been called Griffhenge.
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07-28-2019, 11:17 PM | #15 |
The future is unwritten
Join Date: Oct 2002
Posts: 71,105
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It's amazing that machinery wasn't scrapped for the war effort.
Once you steal that column what on earth would you do with it?
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