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  #21  
Old 09-07-2012, 04:13 PM
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Originally Posted by Iron John View Post
I was thinking of the many people who have extensive machine shops and a pile of titanium on hand. We see 'extreme' examples of engine modifications in other motorsport venues. I was wondering why there don't seem to be extreme examples here.
If it's worth the immense time and monetary investment to you, I'd seriously like to see it done, it would be pretty neat. But to most of us, karts are meant to be relatively inexpensive and fun, and it's just not worth it. Why spend $20,000 on a yard kart when you can take that money and go dirt track racing or to the dragstrip in a full size car?
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  #22  
Old 09-07-2012, 05:04 PM
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Also, even a highly upgraded carb may not be able to keep up with 8000+ rpm's.


Ps: The most round number would be 00000000 rpm's.
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  #23  
Old 09-07-2012, 05:07 PM
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Ps: The most round number would be 00000000 rpm's.
I would consider those to be ovals...
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  #24  
Old 09-07-2012, 05:20 PM
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What? Is the most round number oooooooo then?
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Old 09-07-2012, 05:35 PM
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Flog it- I'm confused. "Zero" is an oval. And technically isn't a number. "o" is round... but a letter... Hmm. Round? Pi(e)?
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  #26  
Old 09-07-2012, 05:48 PM
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"Zero" is an oval. And technically isn't a number.
Sorry but, technically, it is...
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  #27  
Old 09-07-2012, 06:00 PM
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Originally Posted by newrider3 View Post
Why spend $20,000 on a yard kart when you can take that money and go dirt track racing or to the dragstrip in a full size car?
$20,000 won't get you far on a drag strip
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  #28  
Old 09-07-2012, 06:20 PM
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Also, even a highly upgraded carb may not be able to keep up with 8000+ rpm's.


Ps: The most round number would be 00000000 rpm's.
For sure, probably EFI would be the way to go.

I already have a couple of motors that can achieve that number.
  #29  
Old 09-07-2012, 06:21 PM
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Quote:
Originally Posted by newrider3 View Post
If it's worth the immense time and monetary investment to you, I'd seriously like to see it done, it would be pretty neat. But to most of us, karts are meant to be relatively inexpensive and fun, and it's just not worth it. Why spend $20,000 on a yard kart when you can take that money and go dirt track racing or to the dragstrip in a full size car?
I wasn't volunteering to do it, I was asking why semingly no one has done it yet as it seems like something someone would have done by now.
  #30  
Old 09-07-2012, 06:22 PM
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$20,000 won't get you far on a drag strip
I once spent $20K on women and booze. The rest I wasted.
  #31  
Old 09-07-2012, 07:01 PM
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Sorry but, technically, it is...
I reject your reality, and substitute my own.
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  #32  
Old 09-07-2012, 07:34 PM
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Quote:
Originally Posted by toystory_4wd View Post
Flog it- I'm confused. "Zero" is an oval. And technically isn't a number. "o" is round... but a letter... Hmm. Round? Pi(e)?
Here: ∞

That would be a nice round RPM to reach, eh?
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  #33  
Old 09-08-2012, 03:35 AM
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Quote:
Originally Posted by Fabroman View Post
Sorry but, technically, it is...
Quote:
Originally Posted by toystory_4wd View Post
I reject your reality, and substitute my own.
Fine, but it doesn't make it right
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  #34  
Old 09-08-2012, 06:58 AM
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Minidragbike on OMB, 4 cycle and youtube builds some epic builds from a honda industrial engine.

They may not be 12,000 rpm, but they have practically all new billet parts except the block!


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  #35  
Old 09-08-2012, 09:05 AM
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That is a beast
Love the kill method
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  #36  
Old 09-08-2012, 09:46 AM
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Quote:
Originally Posted by Iron John View Post
I wasn't volunteering to do it, I was asking why semingly no one has done it yet as it seems like something someone would have done by now.
Not quite 12,000, but there's a guy in this thread: http://karting.4cycle.com/showthread...t=12%2C000+rpm that's claiming he built a 4-cycle briggs animal that reliably revs to 11,500rpm.

That's pretty darn close to your goal/topic in this thread...
  #37  
Old 09-08-2012, 10:13 AM
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Well idk about 12000 rpms.....but...............
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  #38  
Old 09-08-2012, 11:12 AM
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Quote:
Originally Posted by r_chez_08 View Post
Minidragbike on OMB, 4 cycle and youtube builds some epic builds from a honda industrial engine.

They may not be 12,000 rpm, but they have practically all new billet parts except the block!


Holy cow! Nice work and a pretty good motor. I can't imagine what riding a minibike with that much power would be like.
  #39  
Old 09-08-2012, 01:44 PM
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Well idk about 12000 rpms.....but...............
Wow! Fair effort there, but seems to be a massive waste of time IMO for a small engine.
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Holy cow! Nice work and a pretty good motor. I can't imagine what riding a minibike with that much power would be like.
IKR. Thats what I thought.
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  #40  
Old 09-08-2012, 03:07 PM
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Quote:
Originally Posted by Fabroman View Post
Fine, but it doesn't make it right
Meh- "right" is a subjective term. Lotta grey areas, there...
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