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  1. Replies
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    Some inspiration for your build. The body shape...

    Some inspiration for your build. The body shape is a little different


    http://www.youtube.com/watch?v=_0C1ZEwCq14
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    I disagree about the negative attention, you tend...

    I disagree about the negative attention, you tend to reap what you sow....

    If you have achieved 165, then it's not representative of what others have achieved with similar aerodynamic set ups....
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    "(more can get hot)"

    "(more can get hot)"
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    For 8S you'll need a 40mm motor with 1100-1200 kv...

    For 8S you'll need a 40mm motor with 1100-1200 kv (more can get hot) PLUS a suitable ESC with acceptable voltage & amp rating (XL2, MGM etc)

    For 6S you'll need a 40mm motor with 1500-1700 kv (more...
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    Nic has set a faster speed which is currently...

    Nic has set a faster speed which is currently awaiting GWR endorsement...
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    The Annihilator is a great build & I’m sure most...

    The Annihilator is a great build & I’m sure most members enjoy seeing the innovation & commitment associated with these types of builds. In my view they should be celebrated

    I’m not directing...
  7. Thread: Speed run tips?

    by PBO
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    Maybe a few items of benefit here; ...

    Maybe a few items of benefit here; http://traxxas.com/forums/showthread.php?535111-Building-ideas-for-a-fast-Rustler&highlight=ideas+building
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    I use BluTack with fine bird shot if required for...

    I use BluTack with fine bird shot if required for additional weight
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    I know a little about lift/negative lift in the...

    I know a little about lift/negative lift in the general sense & while the OP may know this, people new to these concepts or fast RC may not, maybe my comments will help someone?

    Generating large...
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    I'd just try the front & leave the rear off

    I'd just try the front & leave the rear off
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    Unless you're cornering, you'll only need the...

    Unless you're cornering, you'll only need the front sway bar
  12. Thread: XO-1 Chassis Dyno

    by PBO
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    If you could fuse a wind tunnel with your dyno...

    If you could fuse a wind tunnel with your dyno you'd have all that data & more


    https://www.youtube.com/watch?v=mpMOpyLbjcA
  13. Thread: XO-1 Chassis Dyno

    by PBO
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    As in theoretic speed? Or can you calibrate...

    As in theoretic speed? Or can you calibrate dynamic resistance to mimic drag?
  14. Thread: XO-1 Chassis Dyno

    by PBO
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    The photo & link were just to illustrate another...

    The photo & link were just to illustrate another design, it was the first one I found in Google

    If you're already running an XL-2 with data logging, what will the dyno give you that the esc won't?
  15. Thread: XO-1 Chassis Dyno

    by PBO
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    http://www.mcpappyracing.com/images/dyno/IMG_6442m...

    http://www.mcpappyracing.com/images/dyno/IMG_6442m.jpg

    http://www.mcpappyracing.com/dyno.php
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    Not Necessarily. Weight can come from negative...

    Not Necessarily. Weight can come from negative lift through aerodynamics

    If you mean sprung/unstrung weight then this has a relationship with aerodynamics but it doesn't work independently of aero
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    He was making a funny I do believe. I got it

    He was making a funny I do believe. I got it
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    I'll be disappointed if it's harder to bring the...

    I'll be disappointed if it's harder to bring the XO-1 up to speed than an over powered 1/10 TC or 2WD that I've had in similar circumstances but I take the comment on board

    I'm hoping foams will...
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    With the amount of power the motor/esc combo can...

    With the amount of power the motor/esc combo can produce I expect to trash the driveline before any amazing speeds are achieved & hopefully the all up weight will help keep it on the ground so I can...
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    New XO-1 - 14s/MGM/Lehner

    The depreciating purchase price has made an XO-1 experiment more achievable. Having the esc & motor at hand makes it approachable

    Will purchase & modify a motor mount, custom gears, custom BSR...
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    Yes, scaling speed is a calculation derived from...

    Yes, scaling speed is a calculation derived from the scale. Brian has given a lot to the RC community through his estimators
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    Over the blue wheel nut

    Over the blue wheel nut
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    Yep, the laws of physics are easily tricked

    Yep, the laws of physics are easily tricked
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    What you have quoted here applies to...

    What you have quoted here applies to acceleration. Can you find the calculation or descriptive quotes for speed?

    Would you believe me if I said I took a standard 1:1 car & shaved a bit of weight...
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    I would normally wait for a response but I have...

    I would normally wait for a response but I have some time to offer some non-pro racer feedback on your tips;

    1) wind resistance in often called drag. To reduce drag you can do a few things & yes...
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