Heading to the dyno! - Suzuki GSX-R Motorcycle Forums Gixxer.com
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post #1 of 24 (permalink) Old 11-23-2012, 06:50 AM Thread Starter
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Heading to the dyno!

My bike is going to get tuned today and its really excited! She wants to strut her full Yoshi today in style!
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post #2 of 24 (permalink) Old 11-23-2012, 08:01 AM
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Re: Heading to the dyno!

What year, model? What mods do you have?
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post #3 of 24 (permalink) Old 11-23-2012, 08:10 AM Thread Starter
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99 750, tons of stuff but engine wise just full yoshi with new RS-3 air, emissions delete an two teeth up rear sprocket with 520 conv on a 190/55


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post #4 of 24 (permalink) Old 11-23-2012, 08:12 AM Thread Starter
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Previous owner dyno'd at 122 with bolt on RS-3 an down a tooth in rear. We'll see how it does. I just want piece of mind that its tuned right with full system.


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post #5 of 24 (permalink) Old 11-23-2012, 11:07 AM Thread Starter
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Well dyno's all vary but anyways the first pull was 117 then adjusted to final pull of 123! Pulls great in all gears now


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post #6 of 24 (permalink) Old 11-23-2012, 11:20 AM
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Re: Heading to the dyno!

Is that a good figure ?

I ask as I dont know what they make as stock, as long as its healthy and fuelling correctly, thays the main thing..was it mapped/pc...(is the RS3 item something along those lines?)
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post #7 of 24 (permalink) Old 11-23-2012, 11:42 AM
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Re: Heading to the dyno!

Rs3 is an exhaust I think.
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post #8 of 24 (permalink) Old 11-23-2012, 11:46 AM
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Re: Heading to the dyno!

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Well dyno's all vary but anyways the first pull was 117 then adjusted to final pull of 123! Pulls great in all gears now


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It makes a difference if po used 190/50 tire and now you have 190/55. It just makes dyno read lower numbers.
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post #9 of 24 (permalink) Old 11-23-2012, 01:49 PM
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Re: Heading to the dyno!

Is that actual rear wheel HP or calculated crank?
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post #10 of 24 (permalink) Old 11-23-2012, 02:39 PM
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Re: Heading to the dyno!

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It makes a difference if po used 190/50 tire and now you have 190/55. It just makes dyno read lower numbers.
Any half decent dyno operator takes these variables into account.
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post #11 of 24 (permalink) Old 11-23-2012, 05:26 PM Thread Starter
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PO had a 190/55, RS-3 is a yoshi muffler. I'm not sure if hp reading is rwhp or crank. Either way I'm happy with 6 hp from tuning properly


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post #12 of 24 (permalink) Old 11-23-2012, 05:35 PM
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Re: Heading to the dyno!

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Originally Posted by williamhbonney View Post
What year, model? What mods do you have?
What do you care.....you're getting Chris's motor, you lucky bugger
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post #13 of 24 (permalink) Old 11-23-2012, 06:29 PM
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Re: Heading to the dyno!

^ I'm sensing some bitterness.
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post #14 of 24 (permalink) Old 11-23-2012, 08:48 PM
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Re: Heading to the dyno!

I am warning you guys not to get caught up in dyno numbers, it a disappointing game.
DynoJet numbers are optimistic, edddy current numbers are more "real", but no-one wants to see them because they are much lower. DynoJet dyno fluctuate wildly from one to another, and the same one from one time to another. Don't get caught up in a numbers game.
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post #15 of 24 (permalink) Old 11-23-2012, 10:15 PM Thread Starter
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I don't care about the "numbers" other that seeing the difference in numbers before and after! Hence why I took it to be tuned. Hope this thread doesn't start down that old bumpy dyno road


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post #16 of 24 (permalink) Old 11-23-2012, 10:45 PM
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Re: Heading to the dyno!

Even two runs on the same day are hard to compare, ok. Forget numbers..... Look for a good a/f trace, a linear progression, and the hp where you need it, forget peak numbers, Listen.
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post #17 of 24 (permalink) Old 11-23-2012, 11:08 PM Thread Starter
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That's what the operator did during about 15 pulls


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post #18 of 24 (permalink) Old 11-23-2012, 11:10 PM
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Re: Heading to the dyno!

That's good news, my comments were really not directed at you specifically, just the forum members in general, as the dyno numbers game is suspect
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post #19 of 24 (permalink) Old 11-23-2012, 11:12 PM Thread Starter
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This is second to last pull when it was still a little rich


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post #20 of 24 (permalink) Old 11-24-2012, 08:54 AM
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Re: Heading to the dyno!

chris you sound llike the guy that dyno tuned our r6.. he told us right from the get go that his dyno is sae and will read about 10 percent lower then a dynojet. not to get caught up in the numbers as he has built and tuned many different set ups over the years. he was an ex racer with a bad right wrist so he ran the throttle with his left hand half the time. at the end of the day the best pull was 98.9 and 45 with a nice linear rise in hp numbers and she held the 45 from 8000 and a bit up to 11000 before it dropped off. the initial un tuned settup didnt make 70 hp lol was way to lean in some places and way to fat in others.

99 750 srad.... my other hot blooded woman
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