About time we had a thread dedicated to peoples actual setups they are running on thier cars, please use the below template to structure your entry

Please keep any discussions in this FAQ Thread regarding bike-carbs and leave this topic for setup details only, to remain factual from peoples first hand experiences.



Engine:- 1388cc DOHC 16v - 1998 - AFH
Carbs:- Honda CBR 600 FS/FT 1995
Venturi Size:- 36mm
Inlet Manifold Type:- Homebrew Mild Steel Manifold - Made by Phataz1 (on this very forum)
Jets:- 142x2 +144x2 as standard, now running 150 x 4 (bought from NRP in Manchester)
CO Reading:- 1.21%
HC Reading:- 1500
Timing:- Need to update with current timing when i get the gun on it
MPG:- Between 38-45
BHP Figure:- TBA - Not RR'd yet
Fuelling Method:- T-Piece method, Facet Solid State 3-5 PSI pump
Fuel Used:- V-Power 99 only
Vac Advance Used:- No
Others:- Failed MOT on HC Levels, will change to 145 jets and see how I get on

Please keep any discussions in this FAQ thread regarding bike-carbs and leave this topic for setup details only, to remain factual from peoples first hand experiences.

But yes, the slider is the choke.

The jets you replace are in the float chamber. You just remove the silver metal cover to get to them, and they unscrew. Simply screw your new ones in and job done.

My setup:

Engine:- 1388cc DOHC 16v - 1998 - AFH
Carbs:- Honda CBR 600 FS/FT 1995
Venturi Size:- 36mm
Inlet Manifold Type:- homebrew mild steel - using cut down standard inlet for port matching
Jets:- 135 x2 / 138 x2 as standard. Now running 145 x 4
CO Reading:- n/a
HC Reading:- n/a
Timing:-
MPG:- approx 25 - 28mpg (240 miles to a 40l tank)
BHP Figure:- TBA
Fuelling Method:- Standard injection pump with t-piece method and return line to tank
Fuel Used:- Shell V-Power
Vac Advance Used:- No
Others:- MOT due in September. Will find out emissions then.

Engine:- High compression 1598cc hybrid 1.6 16v
(mainly AFH/BCB/AUD)
Carbs:-
Keihins from an '01 Honda CBR600F-X
Venturi Size:- 36.5mm
Inlet Manifold Type:-
Brass flanges & PVC vacuum tubing.
Jets:-
165 main,rest standard.
CO Reading:-
Cant remember.
HC Reading:- Cant remember.
Timing:-
Nfi
MPG:-
Cannot prove a figure
BHP Figure:- Not measured.
Fuelling Method:- Facet fast road pump on a return loop with T-piece carb join.
Fuel Used:- 99ron
when available,runs fine on 95.
Vac Advance Used:- Yes - all four carbs converted (one outlet,carbs daisy-chained).
Others:- Springs mildly shortened,cant remember how many coils but its about five.

(to be updated in course)

now

Engine:- 1388cc DOHC 16v - 1998 - AFH
Carbs:- Honda CBR 600 FS/FT 1995
Venturi Size:- 36mm
Inlet Manifold Type:- Homebrew Mild Steel Manifold - Made by Phataz1 (on this very forum)
Jets:- now 145 x 4 was 150 x 4 (bought from NRP in Manchester)
CO Reading:- now 1.41% was 1.21%
HC Reading:- now 1043 was 1500
Timing:- Need to update with current timing when i get the gun on it
MPG:- Between 38-45
BHP Figure:- TBA - Not RR'd yet
Fuelling Method:- T-Piece method, Facet Solid State 3-5 PSI pump
Fuel Used:- V-Power 99 only
Vac Advance Used:- No
Others:- Passed emissions with smaller jets but is overfuelling despite returning good economy. will check the timing tomorrow and probably fix the advance arm on the dizzy, see if that will make a difference, and burn some of that fuel its dumping in the exhaust. it i can get more than my 40mpg average, ill be rate impressed

Engine: 1.6 8v AEE high compression (11.5/1) portet head, complete powersprint group a exaust, 272deg cam
Carbs:- Honda CBR fireblade 900 1994
Venturi Size:- 38mm
Inlet Manifold Type:- homebrew rvs
Jets:-4x135 with closed air jets
CO Reading:- n/a
HC Reading:- n/a
Timing:-
MPG:-
BHP Figure:- 138bhp 173Nm
Fuelling Method:- kawasaki zx6r pump
Fuel Used:- ron 98 with 4 numbers octaan boost
Vac Advance Used:- No
Others:-

Engine:-1.3 AAV
Carbs:- Kawasaki zzr1200 (keihin CVK)
Venturi Size:- 38
Inlet Manifold Type:- Machined adapter plate using Rubber inlets from bike, Carbs are spaced to match ports on thead
Jets:- 180x4 (there is a very good reason for this)
CO Reading:-
HC Reading:-
Timing:-8 degrees
MPG:- 30-50 (depending on my mood)
BHP Figure:- 93
Fuelling Method:- T-piece
Fuel Used:- Unicorn Piss
Vac Advance Used:- Yes - daisy chained, each carb has its own check valve
Others:- Setup on RR and double checked using a ColourTune system, Passed MOT emission with an unbelievably stupidly low emission reading (tester did 4 tests and checked the exhaust pipe was actually connected), pulls through the rev range, only needs a very quick pull of the choke at startup to run, currently have stock needles and springs in place, carbs came with Turbo needles and springs.

Engine:- 1.4 16v afh
Carbs:- honda cbr 600 fn
Venturi Size:- 36mm
Inlet Manifold Type:- home made steel with one vac port
Jets:- standard 135 x4 (ran like shit and really lean) now trying 150 x4
CO Reading:- high lol
HC Reading:- high
Timing:- standard
MPG:- 135 jets 30-35mpg 150 jets N/A
BHP Figure:- not RR yet
Fuelling Method:- Standard mk4 pump with T methord and fuel reg to 3psi
Fuel Used:- esso 98
Vac Advance Used:- None
Others:- (such as needle profiles, circlip position,spring length/rate)
i ran standard mk4 igniton system, just had no limeter

Heres the way to calculate the correct carb sizes for the job,

Venture size = √ (0.6 x Inlet valve Diameter^2 x Number of inlet valves / 0.85)

just to let you know 0.6 is an estimated flow coefficient, i would expect it to be that being ported and polished,,, may be 0.5 if not,, and if you
think you have an F1 head which you wont 0.7

the 0.85 is effective area dont worry about the its just a percent!

For top end power round up to the nearest mm
For bottom end round down 2 mm

for example 6n 16v

√ 0.6 x 29.5^2 x 2 / 0.85 = 35.05mm

Engine:- 1999 1.4 16v AFH
Carbs:- CBR600
Venturi Size:-36mm?
Inlet Manifold Type:-homemade steel manifold made myself
Jets:-145 x 4
CO Reading:- below limit
HC Reading:- about 2000 (almost double)
Timing:- around 10 degrees now i think?
MPG:- about 30 mpg
BHP Figure:- not sure. dont think its running the full 125bhp
Fuelling Method:- facet 3-5psi pump using a t piece
Fuel Used:- shell 95
Vac Advance Used:- no
Others:- no trumpets/filters as i lost one. rev limiter set to 7500

Engine:-AEE 1.6 8v
Carbs:- CBR 600
Venturi Size:- 37.5mm
Inlet Manifold Type:- home made, aluminium
Jets:- 162.5 at the mo, 2 shims under needles
CO Reading:-
HC Reading:-
Timing:- 12 base 33 max
MPG:-
BHP Figure:- 126hp, 138nm, first tune, not final
Fuelling Method:- cbr 600 pump
Fuel Used:- v power or momentum
Vac Advance Used:- no
Others:- air screws between 1.5-2.5 turns. Not finally tuned yet (such as needle profiles, circlip position,spring length/rate)

Engine spec:

1.6 AEE
10.8:1 compression ratio
Ported + polished, 3 angle valve seats
Newman 268
Balanced bottom end + lightened flywheel
4 branch + cat back system, 200 cell sports cat

Engine:- Hybrid 1.4 16v AFH / 1.6 16v Gti
Carbs:- Honda CBR600 F-X
Venturi Size:-
Inlet Manifold Type:- Custom Stainless Steel Manifold - Made by Phataz1 (on this forum)
Jets:- 140 x 4
CO Reading:-
HC Reading:-
Timing:-
MPG:- Not measured exactly but its around the same as my 6N 16v (1400 16v)
BHP Figure:- 156bhp
Fuelling Method:- Low pressure (3-5psi) Facet pump and regulator
Fuel Used:- V-Power
Vac Advance Used:- Yes - T-pieced off all 4 inlet pipes
Others:-

Fast Road Cams
Vernier Pulleys
4-2-1 Stainless manifold
Full 2 & 1/2" Exhaust
Mk3 Flywheel (lighter) & 8P Gearbox

Missing a lot of information I'm afraid, will update as and when I can

Just bumping this thread in the "new post section" to try and get some more replies, this setups from a car over a year ago and I'm tipsy so beer with me (ha)

Engine:- 1.3 3f GT
Carbs:- Gsxr 750cc
Venturi Size:- Unknown
Inlet Manifold Type:- aluminium Phataz1
Jets:- Standard of the bike
CO Reading:- ?
HC Reading:- ?
Timing:- Loads of advance
MPG:- LOW
BHP Figure:- A little above 75bhp (faster than without the bike carbs)




Fuelling Method:- GT pump / T-piece
Fuel Used:- Whatever petrol station I made it to
Vac Advance Used:- No
Others:- (such as needle profiles, circlip position,spring length/rate)

Running the standard GT ingnition with more advance, ran ok, but no where near max potential. Had some fun doing it on the cheap though, awsome noise.


How it sounded with a no cat and mid box.
http://www.youtube.com/watch?v=ZwQMnV9v-5U

Engine:- 1.6 8v AEE
Carbs:- CBR 600
Venturi Size:- 37.5 IIRC.
Inlet Manifold Type:- home brew alloy.
Jets:- 125
CO Reading:-
HC Reading:-
Timing:- 16 deg base timing
MPG:- right foot dependant
BHP Figure:- don't know latest
Fuelling Method:- bike fuel pump
Fuel Used:- 98, but 95 seems Fine
Vac Advance Used:- no
Others:- air screws about 1.5-2 turns out. Secondary air jets blanked. Standard needles with no shims

Engine:

AEE
10.5:1 compression
Newman 268/268
Rebuilt engine
Balanced bottom end, pistons rods etc
Lightened mk4 fly
TA 4-2-1
Twin silenced 2" SS exhaust
No air filters


Little rich at the minute, however is running well. With small main jets and blanked secondary air the fuelling is a lot more stable and it seems to prefer it.

122.5 main jets may be better suited.

Base timing seems a lot but it is ok. I had dizzy reprofiled and they took a lot of timing out of it i think.

It's going well at the min.

Definitely recommend a bike fuel pump, I could fuck about more but people seem to think it goes well enough so may just leave it