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Old 01-10-2010, 06:20 PM   #1
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Old 01-10-2010, 06:22 PM   #2
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Old 01-10-2010, 06:46 PM   #3
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Top speed test:

1. No wind resistance

2. No air flow to induction system for force fed air(above 120mph)
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Old 01-10-2010, 07:08 PM   #4
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Old 01-10-2010, 07:12 PM   #5
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so what if it can't calculate air resistance? they don't have to compare these times to a ticket from an actual strip. but if you compare two bikes both ran on the same machine, i'd say thats pretty fair comparison.
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Old 01-10-2010, 07:14 PM   #6
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If the rollers were calibrated for the bike and rider's exact weight, slippage etc you could compare side by side.

Otherwise it wouldnt be the same since races are won by 60ft sprints.
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Old 01-10-2010, 07:18 PM   #7
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Old 01-10-2010, 11:17 PM   #8
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Relax guys, the Christmas Tree is more for entertainment than numbers to bench race from. I really just wanted to show the dyno in action configured for motorcycle testing. Realistically, the Tree is good for reaction time practice. There's far too many variables that differ, including track prep, crosswind, rider position, etc, that can't be accounted for.

Main thing to remember, the dyno is a tuning tool, and nothing else. Even hp numbers don't mean anything outside the test conditions.

One thing I should point out though, the dyno is an eddy brake loaded dyno that does take into consideration many variables into consideration (including vehicle weight) to apply a calculated load via the electromagnetic eddy brake. This results in a tune that translates much closer to the track than an inertia only based dyno such as a Dynojet.

Didn't mean to stir up so much comotion

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Old 01-11-2010, 12:15 PM   #9
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Old 01-11-2010, 12:34 PM   #10
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Old 01-11-2010, 02:21 PM   #11
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too bad it won't let you bring up the front wheel.
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Old 01-11-2010, 02:29 PM   #12
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too bad it won't let you bring up the front wheel.
Maybe YOUR dyno won't...

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Old 01-11-2010, 04:47 PM   #13
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Maybe YOUR dyno won't...

they need to combine both. i know everytime i've tried launching, i always have let off because my wheel came up to quickly.
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Old 01-11-2010, 04:56 PM   #14
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What do they charge to put a bike on that dyno ?? I'm thinking it might be worth it too see actual MPH in the upper gears and also if I can pull all the way thru 5-6th gears.
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Old 01-11-2010, 08:14 PM   #15
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The Christmas tree just makes it that much more fun.
Btw nice bike on that dyno!!!
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Old 01-11-2010, 08:29 PM   #16
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Quote:
Originally Posted by CaligoneTx View Post
Top speed test:

1. No wind resistance

2. No air flow to induction system for force fed air(above 120mph)
So, my Tuner, Chris, informed me that Mustang's PowerDyne software (which we are using) DOES take into account drag coefficient and allows the user to enter the simulated combined rider and vehicle weight. It's not perfect, but it should be pretty close...minus wheelie's and spining the tire.

But again...it's just a tool good for theoretical results.

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Old 01-11-2010, 08:38 PM   #17
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Did you guys ever plan a dyno day?

What is the shop policy, cuz I know not everyone can be back there watching the dyno all day long... would the customer be allowed back to watch?
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Old 01-11-2010, 09:11 PM   #18
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dyno price per hour?
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Old 01-11-2010, 09:56 PM   #19
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We are usually good about letting everyone see during the dyno day, but at a safe distance, you can search youtube to pull up our past 24hour dyno, which we did 101 cars, so bikes will be no problem.
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Old 01-11-2010, 10:03 PM   #20
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Quote:
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Did you guys ever plan a dyno day?

What is the shop policy, cuz I know not everyone can be back there watching the dyno all day long... would the customer be allowed back to watch?
Initially, we had another member on here approach us with the start of a proposal, and then he just stopped inquiring. We are still in the process of getting the new shop completely setup, but we do plan on having at least one dyno day. Whether it's going to be just one big dyno day with all types of vehicles, or several smaller ones specific to number of drive wheels, the decision is still up in the air. We are sitting back right now and observing to get a feel of what everybody wants. I'm definitely open to suggestions, and the more feedback I get, the better I can accomodate what you guys want.

As for shop dyno policy, I understand how exciting it is to stand next to your own car or bike while it's screaming on the rollers, but as a responsible business owner, I feel that it's in the best interests of my clients' (and my own) safety to control the access to the dyno area. The defnite rules are still under debate, but in reality, the shop is large enough and laid out in a manner that I'm confident everybody can get a good enough seat for the show. If it comes down to it, and a client insists, I'm sure something can be arranged with a signed waiver.
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