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  1. RRiver

    Where to Buy High Speed Ball Bearings 80000+ rpm

    ". . . but I am clueless of where to actually purchase these! I gotten a headache searching for days now." My mistake. I'm sorry. I thought you were asking where you can purchase the bearings. I didn't realize your actual question was "Anyone want to make some calls for me and get some prices...
  2. RRiver

    Where to Buy High Speed Ball Bearings 80000+ rpm

    No offense but just how hard did you really look? Right on the SKF website is a ""Find a Distributor" by address, city, region, etc.," option.
  3. RRiver

    F1 engine, deck ridges ?

    grunt, I'm done with what the engine is or isn't. But, I did find this interesting about one of your links, which by the way I engine. The You Tube video link was titled, "BMW F1 Car BT52 1,280 hp Engine Assembly". The BT52 was not a BMW F1 car. The BT52 was a Brabham F1 car with "BT52"...
  4. RRiver

    I need to test mixing J1850 and J19

    IRstuff, My apologies for missing your post. I thought this had run it's course with responses. The number of devices doesn't matter. Here's an example of what is wanted. The Ford FRPP Copperhead Control Pack PCM doesn't have a VSS (Vehicle Speed Sensor) out. Let's say the shop in question is...
  5. RRiver

    F1 engine, deck ridges ?

    None of this was worth disagreeing over but some things to be straightened out. The general information about the engine may be the most ambiguous information about an engine that's been. Starting with this, the BMW M12 engine never raced in F1. The BMW M12 engine began being used in 1962 as an...
  6. RRiver

    Vertical Load distribution on Wheel Rim

    Just curious but doesn't the NHTSA define the testing standards for manufacturing and testing for wheels\rims?
  7. RRiver

    Spring Damping Constant

    Primary benefits of a Watts Link. Add a Watts link means removing the leaf springs and going to coil springs. Roll center and cornering, another yet to be discussed force on springs.
  8. RRiver

    F1 engine, deck ridges ?

    I said dry deck engine. There is no flat sheet. You sure you know about gaskets? Did you watch TugBoats video? Here's a Boss 429 head gasket: https://tse2.mm.bing.net/th?id=OIP.6Fd_mIzsFRl8Gss1I0EEFQHaFj&pid=Api&P=0&w=221&h=166 Granted, some offer sheets they call dry deck but they're not...
  9. RRiver

    Spring Damping Constant

    Greg, You want to add roll center and cornering to this? LOL
  10. RRiver

    F1 engine, deck ridges ?

    I can't say I know anything about diesels using plastic and rubber for a dry deck engine. For a gas engine using sold copper rings shims are common. The shims are used to ensure the copper rings are evenly compressed. If the head isn't set on the deck evenly the rings can get distorted and fail...
  11. RRiver

    Spring Damping Constant

    WOW! Please explain what you've already done in designing the chassis. Do you have any one of the chassis design handbooks? What are the X, Y, and Z angles of the coil over from vertical? Each angle changes any of the coil over's static specs. "Effective Spring Rate"" This is just one of the...
  12. RRiver

    Spring Damping Constant

    ""It looks like 1/60th of the spring rate does an nice job to stop it from vibrating(gives it critical damping) when the spring is given mass of 5kg and is supposed to be at rest w/ no forces acting on it."" A spring collapsed 100% can still vibrate. The natural frequency of a static spring has...
  13. RRiver

    Ultra fine fuel filters manufacturer

    Look for your filter based on the standard you want to meet. Can't help you anymore than that without a lot more information. Is your definition of ppm for your question a secret?
  14. RRiver

    Tire size vs traction

    Norm, I couldn't agree more.
  15. RRiver

    Ultra fine fuel filters manufacturer

    When you say PPM are you referring to "Parts Per Million" or the ISO Range Codes for "Particles Per milliliter"? https://www.precisionfiltration.com/productpdfs/Understanding%20ISO%20Codes.pdf
  16. RRiver

    Tire size vs traction

    The convential wisdom for dealing with big power engine torque at one time was stiffer frames. This added weight but it worked to a point. Stiff can be too stiff though. A common example of too stiff in the early 60's was the drag racer that went into the wall at lauch. As stiffness goes up the...
  17. RRiver

    Signing as "Designated Principal Engineer" for company's COA

    I'm not a PE and I'm not familiar with this. I am familiar with the machinations of corporations though. If you do accept this I would consider attaching to your acceptance a statement saying any change in the nature of the business after your acceptance voids your acceptance. Don't allow...
  18. RRiver

    Tire size vs traction

    Greg, I'm sure this was part of where he ended up but the "Torque Cancelling Chassis" isn't a thing. It's a design process. I was given this information secondhand so I can't verify it's accuracy but I was told it was something he came upon while reading about the early days, late 50's - early...
  19. RRiver

    Tire size vs traction

    I'm not sure what you learned in school but Jim Thornton who the NHRA credits as the inventor of the funny car and torque cancelling chassis would disagree along with a whole lot more people. That fact that his designs and principles are still SOP today supports this. I don't think I could count...
  20. RRiver

    A history of auto manufacturing...

    Interesting but it doesn't identify who the cars are being made by. Just the country they're made in. Mexico made the list at the end but they're like Canada, US manufacturers. Airbus is a multinational owned company and never was a "French" company. Airbus SE, the SE is Society Europe and is...

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