So you think you are the fastest?

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Aug 30, 2006 | 01:17 PM

#71

DSNUT

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So you think you are the fastest?

OFC - I never thought of that...........Theoretically it would be fairly easy to test. A jj&a axle allows you to adjust the width by repositioning the wheel hubs. Put the bike on the dyno completely extended out, make about 3 passes starting at a constant operating temp, then run the wheels in closer to the carrier. Get the motor back to the same start temp and do three more passes and compare the averages.

In reality though I bet a dyno is too rough of an instrument to guage any difference..........

I'd like to hear your theory on this.

Aug 30, 2006 | 01:20 PM

#72

choosetolose04

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So you think you are the fastest?

Quote:

Originally posted by: OneFlyCowboy

Quote:

Originally posted by: DSNUT

No inside jokes..........just learning[img]i/expressions/face-icon-small-smile.gif[/img]

Thank you nut [img]i/expressions/face-icon-small-smile.gif[/img]

I have an experiment going myself.. Do you perhaps have any evedence about the distance the tires are from the carrier? Do you think width of the axle plays a part in the spin up?

Sure does, [img]i/expressions/face-icon-small-wink.gif[/img]

Aug 30, 2006 | 01:32 PM

#73

DSNUT

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So you think you are the fastest?

How does the distance from the carrier to the tires effect rotating mass, Scott?

Aug 30, 2006 | 01:40 PM

#74

RaptorRandy27

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From: The Great Northwest

So you think you are the fastest?

Quote:

Originally posted by: DSNUT
OFC - I never thought of that...........Theoretically it would be fairly easy to test. A jj&a axle allows you to adjust the width by repositioning the wheel hubs. Put the bike on the dyno completely extended out, make about 3 passes starting at a constant operating temp, then run the wheels in closer to the carrier. Get the motor back to the same start temp and do three more passes and compare the averages.

In reality though I bet a dyno is too rough of an instrument to guage any difference..........

I'd like to hear your theory on this.

Ron, I think you could use the dyno, couldn't you just measure the time it takes to do a roll on from 2000 RPM till it hits the RPM that peak TQ occurs? Then move the wheels in and see if there's a difference? You could do the same test to see the difference a lighter axle and hubs make as well.

Aug 30, 2006 | 01:50 PM

#75

OneFlyCowboy

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From: The Asphalt Jungle

So you think you are the fastest?

Quote:

Originally posted by: DSNUT

I'd like to hear your theory on this.

Seat of the pants here and trail tech reading.. I added 2 lbs of slime to my tires and narrowed the rear by 6 " and gained over 8mph top speedinitially. So im kinda confused. and i have been picking up speed lately.. I need a GPS my trail tech could just be buggin out.

Aug 30, 2006 | 01:50 PM

#76

DSNUT

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So you think you are the fastest?

Yeah, E.T. would be the way to do it.[img]i/expressions/face-icon-small-smile.gif[/img]..........Probably would work.

Aug 30, 2006 | 01:52 PM

#77

DSNUT

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So you think you are the fastest?

Quote:

Originally posted by: OneFlyCowboy

Quote:

Originally posted by: DSNUT

I'd like to hear your theory on this.

You're going faster because your tires are holding air now[img]i/expressions/face-icon-small-happy.gif[/img]

Aug 30, 2006 | 01:58 PM

#78

xFreebirdx

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