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  1. kwklein

    wideband lambda sensor options

    I understand what you guys are saying. I feel the sme way. Below 0.65 is excessively fat/rich. If I don't know roughly how fat it is then I'm guessing at how much to trim from the fuel. Granted I wouldn't trim out a huge amount and end up lean right away, but I also don't want to keep guessing...
  2. kwklein

    wideband lambda sensor options

    I've always used a bosch lsu 4.9 sensor but just realized that I'm limited to a maximum rich mixture reading of 0.65 This is for a racing application and I don't plan to tune this rich but if for some unknown reason my fuel does run richer than this setting I'll have no idea how rich the...
  3. kwklein

    Finite Element Analysis

    Tmoose - the shiftless trans I had mentioned is a bit more advanced than just a piston to operate the shift lever. If you're interested in reading a bit more about them here are two good sources of information for you. http://www.zeroshift.com/pdf/RcarN6V15_Zeroshift.pdf...
  4. kwklein

    Finite Element Analysis

    Tmoose - yes 6061 is a common aloy used but normaly of the aged variety. We're leaning tward a 8090 alloy though.
  5. kwklein

    Finite Element Analysis

    Tmoose - I almost fell over in my chair with the Ti billet and chrome-moly comment. There are several areas that need improvements one being the clutch. There was a focus on intake/exhaust but the application level was to granular. The other thought was a quickshift trans design but it's been...
  6. kwklein

    Finite Element Analysis

    Thank you all for the feedback. These are all good conversations and I appreciate the input. The application is strictly focused on drag and land speed racing which means smooth throttle response isn’t necessary. It’s always full throttle/wide open. I do understand magnesium is very much a fire...
  7. kwklein

    Finite Element Analysis

    Bribyk – The focus is more around the housing than anything. The actual clutch fibers and disks will remain as off the shelf items. We already have a new redesigned clutch assembly with only changes to the primary gear assembly (outer hub), hub clutch sleeve (inner hub), clutch cam set, and the...
  8. kwklein

    Finite Element Analysis

    Drawoh – I’m not big on analogies either. Maybe that’s why I seemed to lose sight in your analogy. You did summarize what’s being done. It’s a redesign of the current already modified clutch assembly. I do admit that the OE clutch assemblies are well designed for their purpose and the...
  9. kwklein

    Finite Element Analysis

    BobM3 - That's a very good point. I hope alot of these scenarios can be fleshed out during the analysis. The load estimates will have a certain margin included in the calculations. The initial shock during launch and then the shock during each shift will all have to be considered. It would be...
  10. kwklein

    Finite Element Analysis

    The Tick - thanks again. I'm looking at the web site in more detail and found what you're talking about. I'll try them as well. cheers
  11. kwklein

    Finite Element Analysis

    Mike, yes it's critical to reduce the mass. Every reduction in grams is an improvement. The so to say "best clutch" wins.
  12. kwklein

    Finite Element Analysis

    TheTick - that second site contains liturature and event information. Yes, I would like to understand things in more detail but I'm relying on the "other person" to already have the knowledge / ecperience / expertise. The budget for all of this is prioritized as material costs and manufacturing...
  13. kwklein

    Finite Element Analysis

    These are all great responses and I really appreciate the input. I’ll look at the website that’s been provided. This may help to get things organized. I agree that motorcycle engineering have done exceptional work in sportbike engines. Of course with OE products there are additional...
  14. kwklein

    Finite Element Analysis

    Thank you for the response. That's the answer I was looking for. I needed to confirm that I wasn't asking "should a house need walls?" There is a high level plan. I just want to make sure I'm recruiting someone with the appropriate skills. I don't know much about FEA.
  15. kwklein

    Finite Element Analysis

    I've got a clutch assembly for a performance motorcycle. The goal is to reduce the mass but retain strength and durability. My question is if FEA is the best approach to determine the best compromise for the design of the assembly or if there's a different type of analysis that can answer the...
  16. kwklein

    Vibration damping

    I did a quick serach but wasn't able to find the answers I was looking for. For vibration damping, would a hollow CF tube perform better than other materials (say aluminium)? What about other types of weave like kevlar/cf vs 100% cf? Is there a chart or a source that has done some testing to...
  17. kwklein

    wheel torque at aero limits

    you're right, I didn't make this completely clear as to the application. This is actualy for a motorcycle. I'm trying to determine how much more torque I need to overcome the aerodymaic drag at a higher ground speed. currently I'm "stuck" at 303.6 ft/sec with 322 ft*lbs. I'm trying to...
  18. kwklein

    wheel torque at aero limits

    sorry, yes I did mean ft&lbs the rear wheel torque statement was just to identify the source of the number so that it's known that powertrain losses have already been subtracted from the flywheel brake torque
  19. kwklein

    wheel torque at aero limits

    207 mph = 303.6 ft/sec
  20. kwklein

    rear wheel torque

    sorry greg I was going to delete whichever one didn't get a reply. I'll delete this post. Also I replied in the other one to you.

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