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Recent content by bentheswift

  1. bentheswift

    Replacing odd-ball sized bearings from 1989.

    TRD is not the manufacturer of the SC12, it is/was manufactured by the Ogura Clutch Company. I'm about 98% sure it is their "TX12" model, though it may have been updated since 1986 when it was first sold on the MR2: http://www.ogura-clutch.com/products.html?product=105&category=3 Might be...
  2. bentheswift

    Help with differential selection

    Yes, these are good answers. I'm still curious about how they work, but thank you for the replies.
  3. bentheswift

    Sway Bar Caluclations - Asymmetrical End Lengths

    Force = torque/radius
  4. bentheswift

    Help with differential selection

    A viscous coupling is more of an OEM-suitable application, since it needs no maintenance and fails over time in the open state. I was thinking a gerotor pump differential could give us the same benefits as the clutches without the torque bias when the car is cornering without wheelslip. My...
  5. bentheswift

    Help with differential selection

    I'm trying to lay the groundwork for our university's next Formula SAE car. We have a "legacy" differential that we have developed over several years. It is a fairly effective clutch-pack limited slip differential. The latest iteration has the gear carrier integrated with the housing, mounted...
  6. bentheswift

    Propshaft strength ?

    The torque that the driveshaft sees will be the torque generated by the engine multiplied by the first gear ratio, right? As long as the wheels can support such a torque (which they likely can't), but that is easy to guess very accurately if you know your tires, wheelbase, and cg location. Once...
  7. bentheswift

    intake air temp - effects on torque

    "i know there is not one equation that covers all motors in real life conditions, but im looking for the math that says for every 1F drop in temp increases air density, fuel consumption,and power by this much." That is exactly the formula that you just said didn't exist. A good place to start...
  8. bentheswift

    independent suspension differential stub shaft "bearings"

    We have used bushings and/or bearings in our home-built FSAE diffs for several years. If the inner stub shaft can move radially at all, then it will due to centripetal force. That will just put the axle at a larger angle than it needs to be, and potentially can mess things up. Right now we...
  9. bentheswift

    Twincharged setup, Supercharger THEN turbo?

    Warpspeed, if by downstream you mean air must go through the blower before it gets to the throttle, then you're mistaken. The path the intake charge takes on the 4A-GZE is filter, throttle, blower, intercooler, manifold. There is literally no plenum on the 4A-GZE, it's just a very short set of...
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