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  • Users: gt6racer2
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  1. gt6racer2

    Ducati 2 Valve 1100 - Individual Cylinder Fuel maps?

    Hi, I'm about to purchase a fuel map device for my Hypermotard. As background, the stock system has a single O2 sensor located after the two header pipes come together which provides a signal for closed loop feedback at low throttle and rpm. (<20%throttle, <5,500rpm). Above this range the stock...
  2. gt6racer2

    Use of .OBJ files in ADAMS

    Hi, For some "sales" work I need to attach a shell to an ADAMS view model to make some pretty animations. The shell I have to use is an OBJ file, which has an associated MTL file. ( The MTL file includes the surface properties such as color.) When we import the OBJ file file to ADAMS, it...
  3. gt6racer2

    UTV(ATV) Tire Pacejka &quot;Magic&quot; Coefficients

    Hi All, We usually work with on-road vehicles, but have to do some work with a side/side type utility vehicle. Tires are 27*9-12 and 27*11-12 ITP 900 XCT. Initially analysis is on asphalt. (I have seen the papers regarding studies on dirt) Our current work is largely comparative rather...
  4. gt6racer2

    3D Scaling

    Hi All, Sorry for such a basic question. We have designed in 3D CATIA V5 a complex machined "valve block" component with many internally intercepting features. I now want to create exactly the same shape object, only 20% bigger. Can this easily be done in CAD ? I'm being informed by our CAD...
  5. gt6racer2

    Aluminum composite brake rotos w/ flyash ULTALITE

    Hi, I came across this material which appears to be a good low cost opportunity to reduce weight from rotors. Does anyone have any experience or comment on the concept ?
  6. gt6racer2

    Torque to apply w/ Prevailing Torque nut.

    Having consulted the earlier posts (thread31-78159 and others ), I found a general concensus that the running torque of the nut before contact should be added to the desired clamp load torque. I can understand this approach for a nyloc or such, however, I'm using a nut with defomation (...
  7. gt6racer2

    FWD Halfshafts - new or rebuilt ?

    Hi, I need to put new halfshafts on the wife's '02 Passat. Given that the price, from the same manufacturer, is about the same, would you go for new or re-built ? Of course re-built has the small inconvenience of returning a "core", but I'm thinking the base materials will be of higher...
  8. gt6racer2

    OE Shock Absorber Life &quot;bathtub&quot;

    Hi, I'm probably pushing the boundaries a bit here, but.... Has anyone on the forum studied typical shock absorber life ( warranty returns )to the extent of understanding the point ( mileage ) at which infant failure decays to the steady failure rate ? I'm particularly interested in the...
  9. gt6racer2

    Intake plenum benefit

    Engine - 400cc Single cylinder 4 stroke on motorcycle. Question. What is the design purpose of an intake plenum with "snorkel" inlet ? My feelings : a) Noise reduction. ( It is noisy with no airbox - not a suck noise, more like the exhaust sound ) b) Possible Tuning, smoother running ? I'm...
  10. gt6racer2

    Accurate Volume Flow measure

    Can anyone advise on best way to accurately measure the volume of fluid passing down a pipe ? Particulars : Fluid : Mineral Oil - Viscosity 10 cSt at 40C. Volume to measure 4 L, accuracy to 1cc Flow Rate 10 L/min Pump Pressure 1000PSI Fluid will be solid - no foam.

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