wrongway
Pro
Posts: 1078
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posted February 07, 2011 04:16 PM
I got my 48mm throttle bodies
I got a late christmas present today.
there are 2 sets of 46mm , 1 set of 47mm and 1 set of 48mm throttle bodies. Enought to upgrade all my motors :-)
Roy
  
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dakota9498
Pro
Posts: 1181
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posted February 07, 2011 04:18 PM
Nice. The 48's going on your big motor naked bike?
____________
2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain
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Shane661
Needs a life
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posted February 07, 2011 04:19 PM
Wow, those look great! 
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wrongway
Pro
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posted February 07, 2011 04:21 PM
quote:
Nice. The 48's going on your big motor naked bike?
I will try to do back-back tests with the46mm, 47mm and 48mm to see what works best with my setup.
since my hp is pretty flat from 9500 - 11000, I think I can use a little more air .
Roy
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gilberjj
Needs a job
Friend of Fast
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posted February 07, 2011 04:58 PM
Where are you sourcing the throttle blades from?
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wrongway
Pro
Posts: 1078
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posted February 07, 2011 05:18 PM
 Edited By: wrongway on 8 Feb 2011 01:19
the same shop that is doing the boring on a CNC is making stainless blades. His prices are great and he can make anything ... but you need to strip down the throttle bodies and do the reassembly.
http://www.markmharris.com/Facility.html
Mark is a great guy and can make anything.
Roy
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Shane661
Needs a life
Posts: 11494
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posted February 07, 2011 05:23 PM
"Harris' state of the art machine shop gives him the ability to design and create complex parts with tolerances as tight as 50 millionths of an inch."
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dakota9498
Pro
Posts: 1181
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posted February 07, 2011 05:32 PM
quote:
quote:
Nice. The 48's going on your big motor naked bike?
I will try to do back-back tests with the46mm, 47mm and 48mm to see what works best with my setup.
since my hp is pretty flat from 9500 - 11000, I think I can use a little more air .
Roy
It will be interesting what it will pick up when it is breathing a little better.
____________
2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain
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ddtinch99
Parking Attendant
Posts: 8
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posted February 07, 2011 07:03 PM
man they look great whats the price on them if i my ask?
 
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wrongway
Pro
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posted February 07, 2011 07:35 PM
for a single set, I think it is $180 for boring and $60 for stainless blades.
email Mark for a quote...
Roy
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1badzx12r
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posted February 07, 2011 08:13 PM
them 48's are getting a little thin
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http://www.youtube.com/watch?v=S06nIz4scvI
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wrongway
Pro
Posts: 1078
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posted February 08, 2011 05:31 AM
Yeah , I don't think they can go much bigger.... I am not sure if Jim has done any dyno testing with 48mm and 50mm throttle bodies to see how much power the add.
Roy
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Compton
Zone Head
Posts: 969
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posted February 08, 2011 05:57 AM
what does CompCNC do also to these? and is that needed?
____________
b.w.
zx14, little longer, little louder, little lower.
08 Busa, just a little longer and louder and lower than the 14
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INTIMIDA2OR
Needs a life
RED rider!
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posted February 08, 2011 02:18 PM
Cool ! 
____________
'06 Passion Red ZX-14
*Lee*
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Rich
Expert Class
Just havin' fun!!
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posted February 08, 2011 04:23 PM
Nice.
____________
07 Green and Black, How fast is fast?
203 for now. Limited $$ = limited HP.
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Y2KZX12R
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CompetitionCNC.com
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posted February 09, 2011 03:40 AM
Edited By: Y2KZX12R on 9 Feb 2011 11:43
quote:
Yeah , I don't think they can go much bigger.... I am not sure if Jim has done any dyno testing with 48mm and 50mm throttle bodies to see how much power the add.
Roy
The 47mm units are worth about 6 hp on a stock motor. That's the average number. Dan (oldkawboy) got 7 hp with them with stock pistons and cams.
Some guys with +2mm bore motors and our stage 2 head and cam package picked up 14 hp and guys with 2x4 2x5 3x5's with our stage 2 and three head and cam package pick up well over 20 hp some as much as 26 hp.
These numbers are all with just changing to the 47mm throttle bodies.
As far as comparing the factory bored 47mm units to our custom billet 50mm units on the same engine, we haven't done that yet. Soon I hope.
We thin the upper shafts and re-plate them. They are also synchronized with a manometer on the flow bench and both shaft sensors are reset to the proper voltages.
____________
Y2KZX12R
CompetitionCNC.com
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Edgecrusher
Expert Class
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posted February 09, 2011 04:07 AM
Sounds like a deal when you compare HP per dollar, that is if you already have what it takes to make em work in the first place.
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Ratfink
Novice Class
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posted February 09, 2011 06:12 PM
seems like a great mod
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CajunBoyz
Zone Head
Posts: 702
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posted February 09, 2011 06:38 PM
quote:
quote:
Yeah , I don't think they can go much bigger.... I am not sure if Jim has done any dyno testing with 48mm and 50mm throttle bodies to see how much power the add.
Roy
The 47mm units are worth about 6 hp on a stock motor. That's the average number. Dan (oldkawboy) got 7 hp with them with stock pistons and cams.
Some guys with +2mm bore motors and our stage 2 head and cam package picked up 14 hp and guys with 2x4 2x5 3x5's with our stage 2 and three head and cam package pick up well over 20 hp some as much as 26 hp.
These numbers are all with just changing to the 47mm throttle bodies.
As far as comparing the factory bored 47mm units to our custom billet 50mm units on the same engine, we haven't done that yet. Soon I hope.
We thin the upper shafts and re-plate them. They are also synchronized with a manometer on the flow bench and both shaft sensors are reset to the proper voltages.
Now that your flowing MORE Air with the bigger TB's, How much more % of fuel are you adding???
____________
"Cajun Boyz with Bad Ass Toys"
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wrongway
Pro
Posts: 1078
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posted February 09, 2011 08:07 PM
quote:
Now that your flowing MORE Air with the bigger TB's, How much more % of fuel are you adding???
I don't know yet... I will see how much of a change I need with the datalogger. I will run the nitorus map and adjust down. I really dont know how much of an increase I will get with the hand ported head.
Roy
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wrongway
Pro
Posts: 1078
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posted February 13, 2011 04:49 PM
I got to test the new throttle bodies at the track today.
I picked up 3mph and .15 seconds.
I will head over to the dyno shop and and see what the true increase in hp is.
Roy
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dakota9498
Pro
Posts: 1181
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posted February 13, 2011 05:05 PM
Damn....good gain. That should translate into a nice gain in the mile or mile and a half
____________
2008 ZX14
Never argue with a fool, onlookers may not be able to tell the difference. ~Mark Twain
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quick6
Expert Class
Posts: 257
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posted February 13, 2011 06:33 PM
nice meeting you at the track today, wrongway.
____________
2006 zx14, fully dressed and sliding(Charlie Sheen)
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wrongway
Pro
Posts: 1078
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posted February 13, 2011 06:33 PM
quote:
Damn....good gain. That should translate into a nice gain in the mile or mile and a half
I am not sure about the mile ,, with the naked bike 10 hp was adding about 3mph . I am guessing half that with the throttle bodies ,,, but the dyno will give me some more data.
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wrongway
Pro
Posts: 1078
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posted February 13, 2011 06:36 PM
quote:
nice meeting you at the track today, wrongway.
yeah ,same here . It is always good to meet the folks on this forum.
Roy
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