Jump to content

Ran my 07 on the dyno... How'd I do?


nico

Recommended Posts

For my birthday, I slipped away to the Stewart's ATV dyno shop to tune my latest 450R project. It was way too hot (105 degrees) to get better numbers, but I'm fairly happy with it for a stock bore, stock crank on pump gas... Below is one of the dyno sheets, and a couple bike pics. Let me know what you think.62813DynoRun.thumb.jpg.956d0bbebf5886b9658b1aa966ce7022.jpgPhoto2006.jpg.641c5b97e112daf54c2cbd90d11eb902.jpgPhoto2016.jpg.0e286c8d77c6382f02bc78f65c767a81.jpg
Link to comment
Share on other sites

  • Replies 9
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Posted Images

those are great numbers and it looks like a solid build, but if you want to go faster on the trails or the track for that matter...your money is better spent on suspension components. Sure you can blow your buddies 45hp machine away in a straight line, but if you hit the woods or track against a machine with the proper suspension and arms, your motor won't do any good.
Link to comment
Share on other sites

Oh, I know... This one is a handful to ride (was way worse with a more bottom-end cam), but I really ride my 250R or 330R more. Both of them have the suspension to work well at these power levels.

 

The 450 was just an experiment, trying different cams and parts to attempt to ease the "hit" on the tires, and wheelie less. It really starts to pull about 40 ft. out from the starting line. It's really just a trail cruiser, and sleeper drag bike (or as much as it can be with a stock swingarm).

 

I wish I knew of some stock-ish tires that would hook like my Pro-Wedges.

Link to comment
Share on other sites

Thanks for all the compliments, this is a great site, without all the BS of some of the others.

 

I've tried the Ohtsu 501's with good results, but these Dunlops are the ones Rocky Mountain was selling at one time for very cheap. They do okay, but really spin compared to the factory 450R/Raptor tires or the 501's. If I'm going to be playing mostly at the strip, I swap on my Pro Wedge 2's or even Pro Wedge 1's.

Link to comment
Share on other sites

Thank you for the welcome. I just realized that my horsepower and torque readings were reported with SAE conversion factors, but most shops report them in Standard STD or STP measurements. I asked for an updated printout, which Randy will be emailing. Does anybody have any experience with the conversions?
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...