V-8 thursday? Okay, here's one that's inverted and backwards

"RamblinRover Luxury-Yacht" (ramblininexile)
02/06/2014 at 09:58 • Filed to: None

WHERE IS YOUR GOD NOW

DISCUSSION (11)

CalzoneGolem > RamblinRover Luxury-Yacht
02/06/2014 at 10:00

Well since he's omnipresent I'd say he's up your arse!

RamblinRover Luxury-Yacht > CalzoneGolem
02/06/2014 at 10:07

I was thinking more in the spirit of some demi-god of V8s: Lord of the Small Block Chevies or something. An entity to which this would be unimaginably profane.

briannutter1 > RamblinRover Luxury-Yacht
02/06/2014 at 10:07

Whoa. I always wonder about these planes...how they perform and how long they live.

Frank Grimes > RamblinRover Luxury-Yacht
02/06/2014 at 10:08

How does the oil not go everywhere it shouldnt? like pooling up in the bottom of the pistons?

CalzoneGolem > RamblinRover Luxury-Yacht
02/06/2014 at 10:13

How would The Lord of the I4s see this?

RamblinRover Luxury-Yacht > Frank Grimes
02/06/2014 at 10:14

Dry sump. As long as the oil is getting ejected by the cylinders during running (oil pumped to pin/piston rings only, gets slung off upwards) and is collected by the dry-sump system, it's alright. It just means that the collection system for the oil has to catch oil from the crank properly and have some type of access to the valve areas to properly pull oil out of them.

That being said, this *is* an automotive V-8 (Buick 215) that's adapted, so drilling relief passages near the main bearings and custom-designing the valvetrain oil recovery would all be from scratch - not to mention the remote sump reworking of the oil pump system. There's a reason most people don't do this.

RamblinRover Luxury-Yacht > briannutter1
02/06/2014 at 10:18

It depends on the quality of the oil recovery design. Since this is a Buick 215 that's been modified, it all comes down to whether the mods were thoroughly engineered.

Designed-for-it inverted Vs generally don't get bothered much. They've had time to have the oil return system completely planned, not bodged together on an upside-down "normal" engine.

puddler > RamblinRover Luxury-Yacht
02/06/2014 at 10:23

my god is dead, but i have a feeling he'd have appreciated this. niether of us would have understood why you'd want to raise the heavy bits, though.

RamblinRover Luxury-Yacht > puddler
02/06/2014 at 10:30

I think, actually, that the main argument for an inverted engine in an aircraft is to get center of mass and center of drag below the propeller line - i.e. center of thrust. It allows for a certain natural stability - if the power cuts out or is reduced, the rest of the airframe can be tuned for attitude up. In other words, even if the engine itself isn't that low, there are good results. It also allows easy maintenance of the fuel system, etc. if the engine would otherwise be out of reach, and might make over-fueling less likely in some cases - which when combined with potential fuel leaks otherwise pouring into the engine at rest, is no bad thing.

RamblinRover Luxury-Yacht > CalzoneGolem
02/06/2014 at 10:33

The Lord of the I4s presumably is familiar with flat-mounted bike units, the Previa, and angle-mounted arrangements in things like the Hillman Imp, so would be a solid "meh".

minardi > RamblinRover Luxury-Yacht
02/06/2014 at 10:58

Why?

EDIT: Just read the thread. OK. Now I know.