CraigChrist
Pro
BAWLS
Posts: 1043
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posted February 27, 2010 07:58 PM
or TNT... he's not a slouch either and weighs 145 lbs.
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60ft-------1.42
1/8th------5.97
mph-------119
  
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entropy
Moderator
Posts: 8671
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posted February 28, 2010 02:27 AM
quote:
quote:
ain't no 240hp going to run no 220mph .. well maybe if it chunked out of a plane at 105 .000 ft without a parachute
I realize it’s a joke but terminal velocity for people is around 120mph. Takes about six seconds to get there.
Free fall is a good example for how important aeros are.
Like Randy says, stable face to earth position gives about 120mph, go into a Track position, head down, arms back, and speed VERY quickly goes to 230mph+/-
(heavier people fall faster, no matter what Newton said...)
Randy's speeds at the upcoming Texas Mile will likely be slower than what some expect.
He is a big guy, and as he says, still new at LSR.
It ain't all about hp, and it ain't all about aeros or total package weight.
You gotta ride the livin' shit outa the bike to reach it's potential.
 to Randy for getting out there and doing it.
See you at Texas (and Mojave, and Loring 2010)
Karl
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This moderator uses moderation in moderation
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1badzx12r
Needs a life
Posts: 8321
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posted February 28, 2010 06:10 AM
quote:
quote:
quote:
ain't no 240hp going to run no 220mph .. well maybe if it chunked out of a plane at 105 .000 ft without a parachute
I realize it’s a joke but terminal velocity for people is around 120mph. Takes about six seconds to get there.
It ain't all about hp, and it ain't all about aeros or total package Karl
a 500hp bike with a 125lb rider and a 40 mph tailwind can get to 220mph .. better than a 240hp bike with a 250lb rider and a 40 mph headwind .. don't you believe professors..
now i want my dinner i'm not gonna eat 25.00 but a 125.00
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http://www.youtube.com/watch?v=S06nIz4scvI
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rtbain
Expert Class
old, fat and slow
Posts: 244
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posted February 28, 2010 07:46 AM
The numbers listed below are percent gains at listed rpm.
Format is:
RPM/HP/Torque
3K- 0/.95
4K- 9/9
5K- 8/7
6K - 11/11
7K - 13/13
8K - 12/12
9K - 15/14
10K - 14/15
10.5K - 14/15
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Randy
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wrongway
Pro
Posts: 1078
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posted February 28, 2010 05:39 PM
quote:
The numbers listed below are percent gains at listed rpm.
Format is:
RPM/HP/Torque
3K- 0/.95
4K- 9/9
5K- 8/7
6K - 11/11
7K - 13/13
8K - 12/12
9K - 15/14
10K - 14/15
10.5K - 14/15
and that was with same fuel and exhaust system on both runs ?
Roy
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rtbain
Expert Class
old, fat and slow
Posts: 244
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posted March 01, 2010 04:48 AM
same exhaust, different fuel. Iniital run was with pump gas on a stock engine. The gains reported were with VP MRX-01
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Randy
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wrongway
Pro
Posts: 1078
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posted March 01, 2010 05:31 AM
ok, I think that gives me the information that I needed.
thanks for taking the tiime to post the info.
Roy
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Shane661
Needs a life
Posts: 11494
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posted March 01, 2010 08:17 AM
 Edited By: Shane661 on 1 Mar 2010 16:18
quote:
ok, I think that gives me the information that I needed.
thanks for taking the tiime to post the info.
Roy
You know you want the head and cams, Roy!!! 
I see a green hat in your future. 
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rtbain
Expert Class
old, fat and slow
Posts: 244
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posted March 01, 2010 11:37 AM
The only problem with this engine is your inner voice keeps screaming "You'll never catch me alive copper!"
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Randy
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wrongway
Pro
Posts: 1078
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posted March 01, 2010 03:37 PM
quote:
quote:
ok, I think that gives me the information that I needed.
thanks for taking the tiime to post the info.
Roy
You know you want the head and cams, Roy!!!
I see a green hat in your future.
of course I do , it is just a question of cost/HP and having enough to set a record.... nitrous in an fuel class may be cheaper ...
an 8% gain for the head/cams alone may not be enough to set a gas record.
Roy
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ZX14Mike
Zone Head
Posts: 891
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posted March 01, 2010 06:30 PM
I'd love to see the difference heads ans cams would make on your bike Roy!!
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wrongway
Pro
Posts: 1078
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posted March 03, 2010 02:43 PM
quote:
I'd love to see the difference heads ans cams would make on your bike Roy!!
me too ... but I cant talk Jim into sending them down here to test :-(
Roy
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gilberjj
Needs a job
Friend of Fast
Posts: 3196
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posted March 03, 2010 02:55 PM
A bigger engine should benefit even more from a head package. That big engine needs to BREATHE!
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WRECKSHOP
Expert Class
Posts: 359
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posted March 05, 2010 09:04 AM
So, Jim (Y2KZX12R) are you going back to the drawing board to try to extract more from this head to find additional tweaks for it ???????????????????????????????????????????
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted March 05, 2010 03:18 PM
Yes, I'm working on another port for a 1570+cc engine.
Each displacement group needs a different MCSA and valve size.
The head on Randles bike would work well up to a 1530. or so depending on useage and cams etc.
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Y2KZX12R
CompetitionCNC.com
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osti33
Needs a job
Posts: 2973
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posted March 05, 2010 05:30 PM
quote:
Yes, I'm working on another port for a 1570+cc engine.
Each displacement group needs a different MCSA and valve size.
The head on Randles bike would work well up to a 1530. or so depending on useage and cams etc.
Cool stuff!! Keep up the good work.
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WRECKSHOP
Expert Class
Posts: 359
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posted March 06, 2010 08:04 AM
I know that Jim will get it right and find more power somehow !!!!
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted March 06, 2010 07:42 PM
I'm gona try like hell !!!!
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Y2KZX12R
CompetitionCNC.com
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WRECKSHOP
Expert Class
Posts: 359
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posted March 08, 2010 03:03 PM
Can someone upload pics of the current version of Jim's new cylinder head. He already said that it was OK to do so ???
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rtbain
Expert Class
old, fat and slow
Posts: 244
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posted March 09, 2010 02:22 AM
There aren't any pictures. The head is on my bike. We were more concerned with getting the head on and the engine running than taking pictures.
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Randy
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WRECKSHOP
Expert Class
Posts: 359
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posted March 09, 2010 06:48 PM
Oh Ok.... 
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rtbain
Expert Class
old, fat and slow
Posts: 244
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posted March 10, 2010 03:09 AM
I know, sorry about that.
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Randy
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