When The guys at D&J DREAM BIG!!

Drew already wants to use his own block/setup, but we're gonna run the customer supplied parts as long as they hold up.

Lavon
 
D&J Precision said:
To mount the pump on the pan we would need to belt drive it. We opted for the reliability of the gear drive. This has 5/8 studs in the aluminum per main bearing.
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How do you prime the pump? Although I agree that gear driven is more reliable I have never seen a belt slip off or break on an oil pump.

If you gear drive it and something locks up you’re going to destroy a lot of parts. Thats why I’ve always belt driven cp3s....etc off the crank. Plus you lose the ability to prime the pump which is important on a dry sump system.
 
Now, I I know I'm not going to be the only one to ask... But what's up with the offset mains radius ?
 
It's just a cut a way view. The right half is lower compared to the left. The left being the full part view.

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okie18 said:
It's just a cut a way view. The right half is lower compared to the left. The left being the full part view.

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Yep. And the view isnt from directly over head.
 
Oneo more step before cryo and stress relief.
 

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takedown95 said:
How do you prime the pump? Although I agree that gear driven is more reliable I have never seen a belt slip off or break on an oil pump.

If you gear drive it and something locks up you’re going to destroy a lot of parts. Thats why I’ve always belt driven cp3s....etc off the crank. Plus you lose the ability to prime the pump which is important on a dry sump system.
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We have equipment at work that runs belt drive pumps, there’s a “switch” the belt tensioner allpies pressure to, if the belt brakes, the tensioner releases the switch which is wired into the fuel shutoff.

Also, you can prime a cummins or any motor with a priming accumulator
 
That is a work of art... I NEED it, so I can get rid of this desperate WANT feeling that is overwhelming me. Lol.
 
Where will the motor mounts bolt, the bedplate? or are you planning on just using a mid plate and front plate?
 
On the subject of dreaming big, seen this picture the other day, made me wonder just how rediculous a W18 Cummins would be!
6636454e9148f3036511ba8b79a6540a.jpg


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J-Pipes said:
On the subject of dreaming big, seen this picture the other day, made me wonder just how rediculous a W18 Cummins would be!
6636454e9148f3036511ba8b79a6540a.jpg


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Oh look, this must be an Disney design! Looking like an explosion of Mickey Mouse pancakes!
 
This is what I see each time Arch's thread comes up.

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J-Pipes said:
On the subject of dreaming big, seen this picture the other day, made me wonder just how rediculous a W18 Cummins would be!
6636454e9148f3036511ba8b79a6540a.jpg


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Four valves per cylinder operated in a pentroof combustion chamber. All together, the engine’s 96 valves took about a week of labor to adjust.
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I hope I can get mine adjusted a little quicker. lol

I feel a little admiration that my name might come to mind when something like this pops up. Derivatives of this engine went on to win several races on land/ air/ and sea. ...so, there.

A fella does have to wonder though, on a serious note, at what point is it best to just add cylinders instead of having a large bore??
 
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