The ITB info thread.
 

For all of you wanting to do ITB's here's the specs on alot of the throttle bodies. I'll add more when I find them

MOTOR CYCLE

SUZUKI

Make/Model: GSXR600
Year: -02
Number of Tb: 4
Inside Diameter: 38mm
Center-Center (left to right from behind): 80-80-80mm
Overall Length: 83mm
Outside Diameter (intake): 44mm
Outside Diameter (filter): 45mm
Separate casting: Yes
Injector Make/Model: Keihin KN4, 0J07 AAA A
Flow Rate (45psi/100%): 240cc/min?, 13Ω
Fuel Rail: Alu casted, Inside diameter 6mm (9mm in the ends)
Additional Info: sec. throttles controlled by ECU.

http://gpz900r.se/images/picture_thr...GSXR600-02.jpg

Make/Model: GSXR750
Year: -98, -99
Number of Tb: 4
Inside Diameter: 46mm
Center-Center (left to right from behind): 80-80-80mm
Overall Length: 91mm
Outside Diameter (intake): 54mm
Outside Diameter (filter): 54mm
Separate casting: Yes
Injector Make/Model: Keihin,
Flow Rate (45psi/100%): 240cc
Fuel Rail Inside Diameter:
Additional Info: No sec. throttles.

http://gpz900r.se/images/picture_throttle/GSXR750.jpg

Make/Model: GSXR1000
Year: -02
Number of Tb: 2
Inside Diameter: 42mm
Center-Center (left to right from behind): 80-80-80mm
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting: No (dual Tb´s)
Injector Make/Model: Keihin,
Flow Rate (45psi/100%): 230cc/min
Fuel Rail Inside Diameter:
Additional Info: sec. throttles controlled by ECU.

http://gpz900r.se/images/picture_thr...SXR1000-02.jpg

Make/Model: GSXR1000
Year: -03
Number of Tb: 2
Inside Diameter: Tapers from 50 to 42mm
Center-Center (left to right from behind):
Overall Length: 90mm
Outside Diameter (intake):
Outside Diameter (filter): 53mm
Separate casting: No (dual Tb´s)
Injector Make/Model: Keihin,
Flow Rate (45psi/100%): 230cc/min
Fuel Rail Inside Diameter:
Additional Info: Pic without secondary butterflies and fuel rail.

http://gpz900r.se/images/picture_thr...SXR1000-03.jpg

Make/Model: GSXR1300 (Busa)
Year: pre 2002 ?
Number of Tb: 4
Inside Diameter: 42mm at injector end, tappered from 51mm at air horn end
Center-Center (left to right from behind): 80-80-80
Overall Length: 90mm
Outside Diameter (intake): 55mm
Outside Diameter (filter): 53mm
Separate casting: Yes
Injector Make/Model: Keihin,
Flow Rate (45psi/100%): ?
Fuel Rail Inside Diameter: PA66-G35
Additional Info: no secondary butterfly

http://gpz900r.se/images/picture_thr...300%20Busa.jpg

KAWASAKI

Make/Model: ZX6R 636 B1
Year: 2003
Number of Tb: 2
Inside Diameter: 38mm
Center-Center (left to right from behind): 75-75-75mm
Overall Length: 90mm
Outside Diameter (intake): 52,6mm
Outside Diameter (filter): 50,8mm
Separate casting: No (dual Tb´s)
Injector Make/Model: BOSCH 280031V
Flow Rate (45psi/100%): 245cc/min
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_thr...ZX636%20B1.jpg

Make/Model: Z1000
Year:
Number of Tb:
Inside Diameter:
Center-Center (left to right from behind):
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting:
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info:



Make/Model: GPZ1100
Year: 1981-198?
Number of Tb: 4
Inside Diameter: 32mm
Center-Center (left to right from behind): 80-100-80mm
Overall Length:
Outside Diameter (intake): 40mm ("serrated")
Outside Diameter (filter): 40mm ("olived")
Separate casting: Yes
Injector Make/Model:
Flow Rate (36psi/100%): 180-200cc/min, 2,5Ω
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_thr...GPZ1100-82.jpg

YAMAHA

Make/Model: YZF-R6
Year: 2003-2004
Number of Tb: 4
Inside Diameter: 38mm
Center-Center (left to right from behind): 72.5-72.5-72.5mm
Overall Length: 95mm
Outside Diameter (intake): 52mm
Outside Diameter (filter): 44mm
Separate casting: Not exactly, but can be cut apart easily (fuel rail)
Injector Make/Model: Keihin ?? # 250031F
Flow Rate (XXpsi/100%): XXXcc/min, 11.7Ω , 12mH
Fuel Rail: Alu casted

http://gpz900r.se/images/picture_thr...R6-03-04_1.jpg

Make/Model: R1
Year: -04
Number of Tb: 2
Inside Diameter: 43mm
Center-Center (left to right from behind): 78-78-78mm
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting: No (dual Tb´s)
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_throttle/R1-04.jpg


HONDA

Make/Model: CBR F4i
Year:
Number of Tb:
Inside Diameter:
Center-Center (left to right from behind):
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting:
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info:



Make/Model: RC51
Year: 2000
Number of Tb: 2, 2 injectors per TB
Inside Diameter: 48mm
Center-Center (left to right from behind): 24mm (TB's are not parallel)
Overall Length: approx 40mm
Outside Diameter (intake): 60mm
Outside Diameter (filter): 70mm (not sure how filter fits)
Separate casting: Yes, TB's are independent, mounted to linkage bracket. Modification needed of fuel pipe and linkages to change spacing.
Injector Make/Model: ????/????
Flow Rate (XXpsi/100%): XXXcc/min, approx 11Ω , ??mH
Fuel Rail: Alu casted, 1 per injector, joined by solid fuel lines
Additional Info: Comes with MAP, fuel regulator, TPS. Has a manual choke mechanism synchronized to both TBs. Not sure how it works - fast idle bleed perhaps?

http://www.gpz900r.se/images/picture...le/RC51-00.jpg

Make/Model: CBR600RR3
Year:
Number of Tb: 2
Inside Diameter: 37mm
Center-Center (left to right from behind): 75-75-75mm
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting:
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info: Injectors mounted in cylinderhead.

http://gpz900r.se/images/picture_throttle/CBR600RR3.jpg

Make/Model: CBR600FSi
Year:
Number of Tb: 2
Inside Diameter: 36mm
Center-Center (left to right from behind): 75-75-75
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting: No (dual Tb´)
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_thr...R600%20FSi.jpg

Make/Model: CBR 929
Year:
Number of Tb: 4
Inside Diameter: 40mm
Center-Center (left to right from behind): 80mm-80mm-80mm
Overall Length of casting 70mm
Outside Diameter (intake): 49mm
Outside Diameter (filter): - flat flange for airbox
Separate casting: 2 twin body castings
Injector Make/Model: ?? Marked as OK24 B
Flow Rate (45psi/100%): not sure. RUns at 50psi
Fuel Rail Inside Diameter:
Additional Info: produces 150bhp at 11,500rpm from 74x54 929cc. 11:3.1 comp ratio, 10 litre airbox.

http://gpz900r.se/images/picture_throttle/CBR929.jpg

Make/Model: CBR900 954 Fireblade
Year:
Number of Tb: 2
Inside Diameter: 41mm
Center-Center (left to right from behind): 80-80-80
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting: No (dual Tb´s)
Injector Make/Model:
Flow Rate (45psi/100%):
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_thr...0Fireblade.jpg

Make/Model: CBR 1100 Blackbird
Year: ??
Number of Tb: 2
Inside Diameter: 42mm
Center-Center (left to right from behind): 85-85-85mm
Overall Length:
Outside Diameter (intake):
Outside Diameter (filter):
Separate casting: No (dual Tb´s)
Injector Make/Model: Keihin
Flow Rate (43psi/100%): ~335cc/min, 13Ω
Fuel Rail Inside Diameter:
Additional Info:

http://gpz900r.se/images/picture_throttle/CBR1100.jpg

SNOW-MOBILE


ARCTIC CAT

Make/Model: ZR600 Snowmobile
Year: 1998
Number of Tb: 2
Inside Diameter: 46mm
Center-Center (left to right from behind): 134.5
Overall Length: 105mm
Outside Diameter (intake): 52mm
Outside Diameter (filter): 70mm
Separate casting: Not exactly, but can be cut apart easily (fuel rail)
Injector Make/Model: ??
Flow Rate (XXpsi/100%): XXXcc/min, 2.9Ω , 5.8mH
Fuel Rail: Alu casted
Additional Info: 2-stroke snowmobile, parallel twin 600cc, 105hp

http://gpz900r.se/images/picture_thr...ZR600-98_1.jpg

Re: The ITB info thread.
 

way to leave out the cbr600f4i info nooob

(sorry for the temporary lock, the damn buttons are too close together. I think i sneezed while i was doing it :P)

Re: The ITB info thread.
 

I ordered a set the other day. I'll post up those specs by the end of next week

Re: The ITB info thread.
 

good call on this thread... lots of good info so far.. keep it goin fellas

Re: The ITB info thread.
 

hey guys im new here anyone wanna make one for me and send it down here?

Re: The ITB info thread.
 

http://www.hilborninjection.com/prod...Id=58&CatId=39

forgot thier kit :) anyone got a listing of "swapable" injectors from the varis bikes ?

Re: The ITB info thread.
 

I thought you can seperate the GSXR 1000???

Re: The ITB info thread.
 

I bought a set of 00-03 gsxr750 Tbs... I believe the specs were like a 50mm to 42mm taper inside. I'll get them out and measure them again at some point. They are also completely splittable.

Re: The ITB info thread.
 

Which would be the "best"? ITB's are ------- Hawt!

Re: The ITB info thread.
 

Where can i get ITBS for my d16a6???? im really trying to get them on my car if anyone has any info.........

Re: The ITB info thread.
 

happen to figure out the cc flowrate on the 600RR CBR ITB's yet?

also, what tends to have better result with ITB? Shorter runners or Longer?

Re: The ITB info thread.
 

the same holds true in all aplications, carb or ITB.. a longer runner will make more power on the top end while a shorter runner will make more low end power... bike TB's are rediculously oversized... you'd want it as short as possible for a honda. i run 40mm webbers on my celica's 2.4 and it breathes very well on top. ITB's flow way better than carbs

Re: The ITB info thread.
 

is anyone here running ITBs on there turbocharged engine, how whould that setup run, whould the ITBs benfit with a turbo?

Re: The ITB info thread.
 

no one ansered this guys question and i was curious about the same thing? how good or bad would that be to run on a turbocharged engine?

Re: The ITB info thread.
 

tony the tiger on honda-tech runs an ITB boosted GS-R setup.

refers to it as the ultimate throttle response setup.

take it for what you will, theres a vid on there somewhere.

http://htracing2.homestead.com/files...engturbo4f.jpg

Re: The ITB info thread.
 

Whenever i find time and get the itbs and airbox assembled... i'll post up my thoughts on it. Until then... i've only "heard" good things.

Re: The ITB info thread.
 

ITBS are the shizznit if you have time too figure out Vacuum and tune them :) I almost went that route but boosted instead, and saved a bunch of money on my car insurance, by switching too Geico! :)

Re: The ITB info thread.
 

Flyspyder55: I think you got your info flipped there my man. Longer runners make more bottom end torque. It's like what happens when you add a throttle body spacer or a carb spacer to a Chevy V8 truck, you get more torque for towing. Short runners, (ie. ITB's) make more top end horsepower. Which is why motorcycles run carbs or ITB's right off the cylinder head.

Re: The ITB info thread.
 

Also want to know....



Rogue

Re: The ITB info thread.
 

How do you bypass the EGR and AIT iacv's with the ITB's got ITB in and forgot to ask the how-to's for the H22A with a P13 and or P72 Hondata. I know should of went with uberdata.

Re: The ITB info thread.
 

pretty good read :y

Re: The ITB info thread.
 

new to this forum and its great! the itb write up is awesome but i am a noob when it comes to acuras. I have a daily driver that i want to install the itbs. I know that itbs give instant throttle response but i am interested in pushing more fuel through my system. I know i will need a bigger fuel pump and probably an safc to trick the computer in to shooting more fuel. but how exactly is the fuel bieng delivered to the motor.(puts on his flame suit for last question). any input is appreciated

Re: The ITB info thread.
 

Can these be run on a normal ECU?

Re: The ITB info thread.
 

where can i get the 1 1/2 inch long aluminum runners?

Re: The ITB info thread.
 

Howsit guys.
Im a Hondaluvva from South Africa and just need some help here.
Im currently busy with a ITB setup on my B16A.
Im gonna be using my stock ECU and just add a piggyback/chip to do fuel and timing maps.
But my problem is the ICV(Idle Controle Valve). How do i do this....the throttles dont have an ICV.

Some help please.

Re: The ITB info thread.
 

Great info again

Re: The ITB info thread.
 

Ive always been curious as to how the ---- you would use an ITB setup on a boosted car

I doubt you would have to split your charge pipe 4 ways at the end

Anyone care to explain?

Re: The ITB info thread.
 

Plenum is built around the itb

Re: The ITB info thread.
 

someone make me some ------- itb's. :y


seriously though...make me some.. :y

Re: The ITB info thread.
 

i can pm me

Re: The ITB info thread.
 

Vouch. chris can do anything.

Re: The ITB info thread.
 

So who wants to put mine togehter for me? ;)

Re: The ITB info thread.
 

hay chris can u make and ITB for and H22 im willing to pay u and decent amount for it ????

Re: The ITB info thread.
 

widebody93 tell me how ur running ur ITB on ur H22 cause im going to be running one on mines soon. but mines gonna be running a built head.

Re: The ITB info thread.
 

i am currently in the process of putting itb's on my 98 2.2 cav it'll b the only i kno of and i think it will help allot with my acceleration as before the itb's it ran a 15.8 1/4 @98mph i'm hoping to get in to the 12's eventually (need more than itb's though)

Re: The ITB info thread.
 

More than just ITBs, huh?

;)

Re: The ITB info thread.
 

got a friend gonna give me some itbs off of a gsxr 750 for like $50, i am also wondering about the iacv...also if i'll be needing to tune the ecu..... ???

Re: The ITB info thread.
 

GSXR750 ITBs would be perfectly sized for a D15, and yes you'd need to tune the ECU.

Re: The ITB info thread.
 

hmmm but what about the yarrr!?

Re: The ITB info thread.
 

50mm ITBs, minimum.

Unless you just want a loud engine, "throttle response" whatever the ---- that is, and a loss of top end over stock. Which is all most people want from ITBs.