Go Back   DIY Go Kart Forum > Building Plans And Advice > Go Kart Discussion

Notices

Closed Thread
 
Thread Tools Display Modes
  #1  
Old 09-07-2010, 01:53 PM
hawk1093 hawk1093 is offline
Member
 
Join Date: Sep 2010
Location: On the computer or in Garage.
Posts: 46
Thanks: 3
Thanked 0 Times in 0 Posts
Default How much speed will a tourque converter give me

I have a 6.5hp kart with a 6:1 gear ratio. The kart wieghs aproximately 200lbs without engine or rider. Currently it tops out at about 30mph.So my question is, will a tourque converter get me more speed?, if so how much?
Or is it not worth my 200$

Thanks
  #2  
Old 09-07-2010, 02:07 PM
Kenny_McCormic Kenny_McCormic is offline
Kartless....
 
Join Date: May 2008
Location: Michigan Troll
Posts: 4,537
Thanks: 10
Thanked 201 Times in 182 Posts
Default

Do the math? Need to know tire height too. Calculated top speed is the ABSOLUTE max, if the kart is too heavy or presents too much wind resistance for the engine the CVT will never hit OD.
  #3  
Old 09-07-2010, 02:37 PM
r97's Avatar
r97 r97 is offline
Measure twice cut once
 
Join Date: Jul 2010
Location: Massachusetts, USA
Posts: 3,793
Thanks: 39
Thanked 250 Times in 229 Posts
Default

top speed depends on gearing
  #4  
Old 09-07-2010, 05:07 PM
hawk1093 hawk1093 is offline
Member
 
Join Date: Sep 2010
Location: On the computer or in Garage.
Posts: 46
Thanks: 3
Thanked 0 Times in 0 Posts
Default

tire hieght is 12"
  #5  
Old 09-07-2010, 06:29 PM
r97's Avatar
r97 r97 is offline
Measure twice cut once
 
Join Date: Jul 2010
Location: Massachusetts, USA
Posts: 3,793
Thanks: 39
Thanked 250 Times in 229 Posts
Default

http://gokartguru.com/engineering_tool_kit.php
  #6  
Old 09-07-2010, 06:35 PM
ramairgtz ramairgtz is offline
Noobie
 
Join Date: Aug 2010
Location: Florissant Missouri
Posts: 167
Thanks: 1
Thanked 8 Times in 8 Posts
Default

I believe all the torque converter will do is help with the low end take off speed. It won't have an effect on your top speed. You could drop your ratio to 5:1 which would gain more speed and the converter will help out with the low end
The Following User Says Thank You to ramairgtz For This Useful Post:
hawk1093 (09-07-2010)
  #7  
Old 09-13-2010, 05:22 AM
Doc Sprocket's Avatar
Doc Sprocket Doc Sprocket is offline
*********
 
Join Date: Jun 2009
Location: Ontario, Canada
Posts: 15,677
Thanks: 723
Thanked 2,205 Times in 1,693 Posts
Default

With the right torque convertor, and the right setup, there can be a speed benefit. The Comet 30 (if I recall) has a .9:1 overdrive.
Another good benefit is the fact that it since it has a variable ratio, you can get away with gearing a little higher than normal, and the takeoff is still acceptable. So ultimately, you get a higher top end. Case in point- I'm geared at 4.8:1 with 17.5" (measured) tires, and I top out at 72 KM/hr. There's no way I'd be able to gear that high with a centrifugal clutch.

200lbs without engine? That's rather weighty! Give us some more info- frame design, tire size, etc. And so far, I do believe you'd benefit from a torque convertor. My kart's a big chunk of heavy metal, too.
__________________
Treat it as you would an aircraft frame and you should have no problems. -Name Withheld
The Manual- "Just the manufacturer's opinion of how to put this together."- Tim "The Tool Man" Taylor
Put down the wrench, and come out with your hands up!- Me!
Wrench, Wheel, Wreck, Repeat...
  #8  
Old 09-13-2010, 06:50 AM
brendonv's Avatar
brendonv brendonv is offline
Senior Member
 
Join Date: Dec 2008
Location: Australia, Perth
Posts: 861
Thanks: 1
Thanked 52 Times in 48 Posts
Default

please use the search function and google before posting. Thats like 4 useless threads you have made so far. The total top speed totally relies on your gear ratio. Of course a TC is better then a cent... Its a TC.
__________________
www.youtube.com/brendonv101
www.youtube.com/SeeAustralia
  #9  
Old 10-27-2010, 10:54 PM
pkgocart pkgocart is offline
Member
 
Join Date: May 2010
Location: Ontario, Canada
Posts: 72
Thanks: 2
Thanked 0 Times in 0 Posts
Default

how much speed would i get with a tc 12t cluch 72t sprocket 5 hp honda 15'' tires
  #10  
Old 10-28-2010, 05:06 AM
Doc Sprocket's Avatar
Doc Sprocket Doc Sprocket is offline
*********
 
Join Date: Jun 2009
Location: Ontario, Canada
Posts: 15,677
Thanks: 723
Thanked 2,205 Times in 1,693 Posts
Default

You dug up this old thread to ask that?
__________________
Treat it as you would an aircraft frame and you should have no problems. -Name Withheld
The Manual- "Just the manufacturer's opinion of how to put this together."- Tim "The Tool Man" Taylor
Put down the wrench, and come out with your hands up!- Me!
Wrench, Wheel, Wreck, Repeat...
  #11  
Old 10-28-2010, 06:21 AM
devino246's Avatar
devino246 devino246 is offline
Official DIYGK Chem Nerd
 
Join Date: Sep 2009
Location: Lynchburg, VA
Posts: 3,856
Thanks: 270
Thanked 284 Times in 245 Posts
Default

Quote:
Originally Posted by pkgocart View Post
how much speed would i get with a tc 12t cluch 72t sprocket 5 hp honda 15'' tires


This website has this very useful speed calculator

One would think that after being here for nearly 6 months, you would realize that bumping threads like this is frowned upon.
__________________
ASE Certified
Closed Thread

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:39 PM.