Recent content by V8 Busa

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    V8 Busa Motor

    I listen to this when I start to lose steam :)
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    crankshaft journal fillet size?

    does anyone have a crank laying around that they could measure? I'm looking for the fillet radii on the main and con rod journals. if you can tell if they're rolled or cut that would be very helpful too
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    V8 Busa Motor

    quick update The graphs from left to right are unbalanced engine forces, balance shaft forces and remaining free cranks forces once you add in the balance shaft. An unbalanced busa runs about 18kN of free force, the balance shaft cancels out about 10k worth so you're left over with 8k of free...
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    V8 Busa Motor

    That's going to be bad ass. Do you have to run aluminum rods for that kind of setup? I assume 4340 crank?
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    V8 Busa Motor

    That must have been quite a handful! How did you get into formula racing and do you still race?
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    V8 Busa Motor

    Realistically this project will take 1 - 3 years to complete. It really depends what vehicles I've got around at than point in time, I've got a 944 right now that it would be fun/straightforward to swap into. Although I could probably convince a couple buddies of mine to drop it in a Formula SAE...
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    V8 Busa Motor

    some basic motion animation, CGs look good Prelim modal analysis looks fine, no natural frequencies in the operating range 1k rpm - 12k rpm Next move I think is to move my balancing work into my comprehensive Matlab script and refine the mechanical design of the cranshaft. I really need a...
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    V8 Busa Motor

    @Sandow oh....I see yeah, best not to clog this up then... the reason for a flat plane v8 is because I can use stock jugs, heads and cams. I could redesign all of those parts but they wouldn't be as cheap or good and would be time consuming to design. If I was truly courageous I would make a...
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    V8 Busa Motor

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    V8 Busa Motor

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    V8 Busa Motor

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    V8 Busa Motor

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    V8 Busa Motor

    I heard the RPE and hartley motor's both chewed up bearings for a a couple reasons which has me pioritizing block stiffness as well as controlling secondary free forces. So I've spent a bit of time calculating these forces. Shown below I compare free forces of a 90 deg vs a 75deg (hartley) motor...
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    V8 Busa Motor

    Goal: Design a v8 using Busa parts similar to a Hartley, synergy or RPE V8 Should use as many stock parts as necessary maintain characteristics of a stock busa but with twice the power crankcase and crankshaft must be machinable on a 4 axis mill There is so much to do on this project that I...
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    Balance Shaft locationS?

    Does anybody know where the other balance shaft is located? I am used to seeing this but I can't find the other one, maybe the other counterweight is hiding somewhere on another shaft? Typically there are two, which rotate in opposite directions so that the rotational forces are balanced but you...
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