TOP SPEED WITH A 16/38 combination - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums
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post #1 of 26 (permalink) Old 01-22-2013, 08:57 PM Thread Starter
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TOP SPEED WITH A 16/38 combination

So i went out to a local dirt strip with my buddies and dragged raced for shits and giggles, i was spinning all the way to mid 4th gear and topping out on 5th hitting rev lmtr. it felt freaking fast, i was wondering how manny MPH could i possibly be going im 110lbs so is not hard to top out the bike

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post #2 of 26 (permalink) Old 01-22-2013, 09:11 PM
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post #3 of 26 (permalink) Old 01-22-2013, 09:14 PM Thread Starter
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post #4 of 26 (permalink) Old 01-22-2013, 09:22 PM
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post #5 of 26 (permalink) Old 01-23-2013, 11:26 AM
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Carb'd or Efi?



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post #6 of 26 (permalink) Old 01-23-2013, 12:20 PM
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there was a link to a converter for stuff like this somewhere but idk where it went??

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post #7 of 26 (permalink) Old 01-23-2013, 02:19 PM
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When I weighed 112-119 for wrestling 10 years ago with my 480 Athena with no head or carb work. I was paced on the sand flats once, topped out around 90 Granted it was a Fullsize Bronco with paddles, so the speedo was probably off some. Honestly you would not know how fast exactly you would be going unless you did the same as I did.

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post #8 of 26 (permalink) Old 01-23-2013, 05:21 PM Thread Starter
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Quote:
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Carb'd or Efi?
carbed
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post #9 of 26 (permalink) Old 01-23-2013, 05:46 PM
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I cant help ya then lol

I had my 480 efi on the strip last year. I think it was 16/35 gearing. 4th gear topped out crossing the line was 85 I believe



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post #10 of 26 (permalink) Old 01-23-2013, 05:51 PM
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Your making ur rpm down on motor I think you should be around 65

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post #11 of 26 (permalink) Old 01-24-2013, 10:36 AM Thread Starter
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^ 65 no way dude more like 105 or 95 im going to get my friend to drive next to me while i punch it and see what it does i just dont want to get in trouble the cops take your bike is 4 grand to get it back
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post #12 of 26 (permalink) Old 01-31-2013, 04:17 AM
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Here you go, thats the chart I found on here. Sprocket/cdi/tire Size/top Speed Although it does not list a 16t if youre running 18s id guess like 76?

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post #13 of 26 (permalink) Old 01-31-2013, 06:05 AM
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105 ? haha take a picture of it or vid on a handle bar garmin or gps of some sort to prove it

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post #14 of 26 (permalink) Old 02-10-2013, 08:07 PM
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I wouldnt think much more than 90.
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post #15 of 26 (permalink) Old 02-10-2013, 09:10 PM
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The efi bikes have larger primary. So with 16/35 sprockets reaching 85 in 4th. I don't think 100 isn't realistic for a carb, with the righ motor/fearing/tire sizes.



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post #16 of 26 (permalink) Old 02-10-2013, 10:20 PM
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Get app on Ur phone if u have a smart phone. U can actually put it in ur pocket
And it'll save ur top speed.
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post #17 of 26 (permalink) Old 02-28-2013, 02:59 AM
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Quote:
Originally Posted by robtorres36 View Post
Get app on Ur phone if u have a smart phone. U can actually put it in ur pocket
And it'll save ur top speed.
Best post so far
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post #18 of 26 (permalink) Old 02-28-2013, 08:43 AM
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I use a hand held GPS or the app. Both work good but the GPS is a little more accurate
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post #19 of 26 (permalink) Old 02-28-2013, 09:29 AM
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^^ Thats the best way and more accurate than your friend driving next to you.
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post #20 of 26 (permalink) Old 04-22-2013, 10:39 AM
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You wont get run over, but he can't hand you a beer at 75mph either. Opportunity/Costs

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