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First gen NSX used honda's race winning V8 block design (90*) with two cylinders lopped off then they offset the crank bearing/pins/ whatever you'd like to call them 30*. All if I remember correctly. Not sure what else. The worst design I ever saw was a two stroke scooter with the oil pump...

Pascal's law seems contradictory to what I would expect. If the pressure in a hydraulic system is equal everywhere, but you have a fluid, completely filling a rotating cylinder, wouldn't the force on the walls be greater than the fluid pressure in the middle due to the centripital forces...

I'm slightly confused on some of the wiring specifics, for example the grounding. The hot tub panel is technically the same structure or part of the house. The shed is a different structure and panel and thus I added a ground rod. Before I grounded the house with one rod I was able to...

yeah I agree this is a total mess. The spa was redone by a spa guy many years ago, not an electricion. I was thinking of doing the following: SPA panel no longer on GFCI from main panel SPA equipment each receives it's own GFCI in the respective panel Shed stays wired as is, with the...

I'm not an electrical engineer but I thought I'd get better responses here than if I posted in the hobby section. I'm having a strange issue and I'm a little tired to get my head weapped around it for the night so I figured I'd ask before I jump on it tomorrow. My shed has a sub panel...

Wow, that pre chamber spark plug engine is cool! I wonder what kindof compromises they had to do with that setup. I'm going to guess it might be a very good idea to index the "outer" spark plug. Honda found this necessary, albeit for different reasons, on the 2000 honda insight. Make the...

Pardon my 3am blunder, you are correct! I should have only said cars. If you can find cars and (not trucks) that don't say this in the manual: "Toyota does not recommend towing a trailer with your vehicle. Toyota also does not recommend the installation of a tow hitch or the use of a tow...

Here's a cool trailer I saw a while back: https://www.youtube.com/watch?v=Ikzm_4Adz3U I think you'll find it funny to see a car towing a car. You'd never see that in America. The standard here is to have the biggest tow vehicle possible, even if you're just going to move the ride on mower...

Forgot to mention that then I could not distribute my EXE without scaring people. Google drive thought it was a virus, and would not let you download it as part of the zip folder. Then, you have to download it separately and confirm you want to download it! I'm writing software that is...

so I'm learning python and enjoying it for the most part. But holy cow! If you want to use python 3.8 this other thing you installed 6 months ago is not compatible yet. If you want to use this module, which hid dependent somehow on this other module, well, both modules have to match, and be...

That's quite the home setup, sounds like you don't need to do an easier to machine proto first. I like the idea of the acrylic model. Can't wait to see it, if you're kind enough to share ofcourse! may be worth considering potential failures though with piston return springs. (Do I remember...

You can air bag torsion axles to be progressive, and adjustable. They do have models with brakes. Personally I'd go torsion on a nice small trailer, but I will never have a big truck or SUV to tow with, in which case I wouldn't care so mucht. If I did it myself I'd get those bag springs...

I am not very good at communicating without pictures, just imagine if: There were a slot, there would be two sides, ofcourse, and a pin would ride in the slot. The movement of the piston could be controlled in both directions without a spring. You could do this for every piston. Because...

Debating control options, controling zones independently vs. one thermostat. I know mitsubishi (If I remember correctly) allows an interface that can control multiple mini splits. They currently have some more consumer friendly program that allows customers to use their smart phone and do...

Yeah I totally don't like what they did in that video, but the theory is what matters I guess. Here's it done more properly: https://www.cycleworld.com/2014/04/25/cw-tech-valve-control-history-and-why-ducati-is-committed-to-desmodromics/ Ducati hasn't every been the front runner for very...

Sorry RodRico, I didn't make myself sufficiently clear on any of my points! I was just thinking out loud on the valve train. In a conventional engine, I bet very little of the energy used to open the valves (if any) is returned. At lower RPM's turning an engine over by hand it is possible for...

Ditch the OD (bottom) cam and go desmodronic, ducati style. A V8 used a sumilar style once. No more worry about return springs. How much HP is lost to the valve train? I don't really know but I would think you could gain some efficiency removing the spring. Also it seems like you could...

I'm developing a multiple choice question program for PC. I am familiar with matlab, but not much else. Updated: I need: 1. Graphical user interface 2. Easy to distribute, hopefully an easy to install EXE(people not good with computers will be installing this) 3. works with a database, or...

I read a race chassis design book one time, the advice was something like any suspension corner should be able to take 10g's of the car's weight. Car weights 1 lb? any wheel should be able to take 10 lb, can't remember all the specifics. this is all IIRC Also, in racing it's possible to go...

I would think an open flame could be a hazard in (almost) any type of gas processing plant(not including all inert gasses, I think). What type of gas? This may actually be a good question for a chemical engineer. Even if it's not traditionally a hazard, or a fire hazard, what gas specifically...