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  1. randomthoughtguy

    AWD Centre differential confusion

    That's the thinking I was having around the LSD vs Torsen vs Viscous, and I guess this sort of explains why OEMs don't use clutch LSDs and use the other types. The problem I can see with the X-Drive system for my use is the torque split is as standard 40:60 front to rear, and because id be...
  2. randomthoughtguy

    AWD Centre differential confusion

    Please see attached. I'm essentially thinking about a DIY Ford RS200 drivetrain system. Rear engine through transmission to a transfer case mounted at the front diff with the differential in the transfer case sending power to front and rear diffs. The Differential in the Transfer case is the...
  3. randomthoughtguy

    AWD Centre differential confusion

    Thanks Brian I'm aware of the Haldex system and it's not really what i'm looking for. I guess what i'm looking at is closer to a Transfer case differential in a longitudinal transmission. Usually these would come with either an open spider differential or a Torsen or Viscous differential...
  4. randomthoughtguy

    AWD Centre differential confusion

    Hi Everyone Within the generally standard AWD or Fulltime 4WD drivetrain layout there is a Front, Centre and Rear differential. The Centre differential can either be open or locking through use of a (typically) Torsen type or Viscous type Differential unit. Would it be viable to instead use...
  5. randomthoughtguy

    Vintage race car leaf spring setup

    Hi everyone I'm looking to build a vintage monoposto style race car and would like leaf suspension at all corner just to fit the vintage vibe of it. For the rear axle to potentially avoid using a shock absorber could one mount two quarter elliptical leaf spring packs above and below the axle...
  6. randomthoughtguy

    AWD buggy drivetrain hypothetical

    Yes it definitely seems like i have some calculations to do. The main reason i was thinking AWD rather than RWD was because i wanna use it for rally on gravel roads. And yes i know one can use FWD or RWD on gravel rally but AWD is just so appealing. Plus i love the building side of things...
  7. randomthoughtguy

    AWD buggy drivetrain hypothetical

    Under driving the center to me would be a case of a lower final drive ratio in the transmission which acts as the center diff. The wheels would be around 14-16", which is standard for the donor car i believe. So what you're saying is that a lower value ratio on the front and rear diffs would...
  8. randomthoughtguy

    AWD buggy drivetrain hypothetical

    Wow thanks everyone for your responces. From what i can make out it would be impractical as the driveshaft rpm front and rear would be significantly higher than the tail shaft rpm from the center diff due to the ratios. What if the center diff could be significantly under driven, say 0.5:1...
  9. randomthoughtguy

    AWD buggy drivetrain hypothetical

    So it could be done by reducing the final drive ratio? Could this be used to advantage by balancing the front and rear and center diff ratios?
  10. randomthoughtguy

    AWD buggy drivetrain hypothetical

    Hi all, A thought entered my mind the other day of the feasibility of an AWD single seater buggy that has an unconventional drive train layout. Conventionally there would be longitudinal engine and gearbox with transfer case behind or a transverse mounted engine and gearbox with almost a PTO...

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