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Mechanical Engineering


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About Renny

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  • Birthday 06/01/1999

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    Ellensburg, WA
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    Motorcycle technology, mechanical and electrical engineering, environmental geology, photography, paleo-geography/biology

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  1. I'm currently looking for powerful compact engines for the Mk.1, and i'm a huge fan of the rotary, so I figured that I could mounted that on it. The problem is, I can only find 13B's for front engine RWD vehicles, the Mk.1 is a rear engine RWD vehicle. Is it possible to swap the transmission for a transaxle on this engine?
  2. Renny

    [UPDATED] Inertia Plate

    @nice-hice-hybrid-breather , that sounds like a great project! You'll want to choose a vehicle with plenty of engine space for starts. Judging by the fuel processing process. you'll also want a decent sized boot/trunk. Most modern cars have advanced electronics assisting engine operations, so an older car would be a perfect template. As for an engine, a diesel compresses air to such a high point that when fuel is injected it combusts immediately--which is basically one of it's only differences between a gasoline engine. I wouldn't say that it's tougher, but don't take my word for it, I've never dealt with a diesel engine before. I'd suggest seeing if you could get an engine block forged out of tungsten, it has the highest melting point of all metals, it should do you just fine. I will consult another mechanic about your project to get a second-hand view and then get back to you. 'The best of luck on your engine!
  3. Renny

    Value Engineering

    I had a good laugh at this one!
  4. Hello, I started a project with a friend of mine to design and build a "street buggy", basically, it's a dune buggy meant to be driven on tarmac instead. So far, we've come up with diagrams of the chassis and other specialized components with approximated measurements. This buggy that we've deemed the "Raptor Mk.1" is to be a rear engine, rear wheel drive, single seat capacity vehicle. On our diagrams, we predicted that it should be about 2.7432m in length. However, more that 75% of the vehicle's weight will be in the back, so we need to figure out how to balance the weight. Simply storing the fuel tank in the front wont be enough. After brainstorming for a few days, I finally came up with an idea: a shift-able weight mounted on the front. It was a breakthrough for this project, but it's only a theorized component, one that I will now share it's details with in order to get a consult on it's possibility: (I know the name is bland and it doesn't roll off the tongue, i'm still working on it) It's called an "Inertia Slide", a rectangular piece of metal that is suspended on two bearing houses bolted onto the chassis. Here's what I wrote down above the design of this Inertia Slide: "In theory, the inertia slider is a component mounted on a vehicle's chassis that helps distribute weight evenly when accelerating and decelerating. When the vehicle is accelerating, the weight is pull backward, applying weight to the middle of the body for stability; and when the vehicle is decelerating, the weight is pushed forward to the front of the body, applying more weight on the front wheels, improving it's handling and ability to steer." In my Power Mechanics class, we learned about bearings that protect the crankshaft and camshaft from inertia, that's how I came up with this idea: instead of opposing the force of inertia, why not utilize it? Anyways, now for the specifications: Weight (part) LxWxH = 121cmx115cmx8cm, weight = 70kg, components = seal plate, arm, weight plate ; Wearing Rail (Housing): LxWxH = 1.82.88cmx?(to be determined)x10cm, weight = undetermined, components = impact absorber, lock plate, ball OR cylindrical roller bearing, oil seal, shell. All this may be hard to envision, all i have are crude sketches, unfortunately. I have to real skills with 3D modeling programs. But, I intend the mount this part on the front of the chassis with it's angle being biased to the the front so the it naturally falls forward. I'm also hoping to instill a frictional resistance on this part so that it requires approximately 0.8 lateral G's in order to move at all. Keep in note that I have no expert training in this field at the moment, this is simply a project to get a first hand feel and understanding. Once again, this is a theorized part and all measurements are approximation to be adjusted accordingly. Can anyone help me out with this?
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