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  • Users: ads22
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  1. ads22

    REM Polishing transmission gears and final drive?

    Has anyone seen objective data re driveline loss reduction via the so-called "REM" micropolishing of transmission or final drive gears? I've seen some claims that are kind of hard to believe, and wonder if anyone here has any actual data? I'm rebuilding a fwd transaxle for road racing and...
  2. ads22

    Life of wide-band O2 sensor with leaded fuel

    Does anyone have knowledge as to the expected useful life of a Bosch wide-band O2 sensor used on a race engine running leaded fuel? I've heard everything from "a few minutes" to "several seasons of racing" and am thus totally confused. Assuming that there really is a huge range of life, I'm...
  3. ads22

    Ballpark Engine Lubricant Oil Flow Rate

    Can anyone give me a guesstimate of my lubricating oil flow rate to help me size an oil cooler and calculate plumbing system losses? Engine is a VW A1 (Rabbit, Scirocco) 1600cc 4 cylinder, 5 main brg, solid lifters, bearing clearances slightly bigger than std (~.002"), running SAE 30 or 50 oil...
  4. ads22

    Squish Gap

    I'm just starting to research building a racing engine. This is based on a 70s - 80s VW 8V watercooled (Rabbit, Scirocco, Golf etc.) engine. The class rules specify an 11:1 CR and an unmodified combustion chamber so the basic design is pretty fixed. A flat top piston with the right head milling...
  5. ads22

    IC Engines References

    Hello, new user here. I'm looking to update my 25 year old library on IC engines stuff. Interest is in general theory, racing engine design, and performance modifications. Any recommendations? Pardon me in advance if this info is available in an FAQ or by searching threads - I tried feebly...

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