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Author Running bike carbs/bike throttle bodies on a C20xe
Dan295
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Registered: 9th Oct 06
Location: London
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24th Apr 08 at 16:47   View User's Profile U2U Member Reply With Quote

Need a bit of advice really, i havent heard good things about webbers so im going to steer clear of them, i was looking into bike carbs as suggested however i am researching at the moment the how and why, i know i will need a custom inlet manifold which i have covered, just curious about results etc and whether i want non-vacuum carbs or vacuum carbs which mean an airbox assembly needs to be constructed.

Cheers.

[Edited on 24-04-2008 by Dan295]
Warren G
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Registered: 14th May 06
Location: Kent
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24th Apr 08 at 17:19   View User's Profile U2U Member Reply With Quote

if going al that effort not to have twin 45's on a already made manifold

might was well get throttle bodies???
Dan295
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Location: London
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24th Apr 08 at 17:27   View User's Profile U2U Member Reply With Quote

throttle bodies are a bit more costly though warren and they require the management which is rather expensive as well i thought
Warren G
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Location: Kent
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24th Apr 08 at 17:33   View User's Profile U2U Member Reply With Quote

hows that?

custom manifold for bike carbs will cost the same as for bike throttle bodies

a set of bike throttle bodies will cost similar to bike carbs

what managment would you use with the carbs, megajolt?
Dan295
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24th Apr 08 at 17:37   View User's Profile U2U Member Reply With Quote

i dont know apparently i can get away with ignition only management, the custom manifold is 200, ive been quoted 150 for getting them set up and RR'd and there are ZX10R GSXR & R1 carbs that go on ebay for reasonable money as well
Warren G
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Location: Kent
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24th Apr 08 at 17:58   View User's Profile U2U Member Reply With Quote

well you can either use the standard management with the injectors still plugged in so it thinks its injector fuel still or use something like megajolt ecu to control spark only

150 is a very good price tbh
Dan295
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24th Apr 08 at 18:19   View User's Profile U2U Member Reply With Quote

so if i use say an omex 200 and get that hooked up would it be niiiice
Warren G
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24th Apr 08 at 18:21   View User's Profile U2U Member Reply With Quote

still wont be as good as throttle bodies


gonna drink petrol
Dan295
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24th Apr 08 at 18:28   View User's Profile U2U Member Reply With Quote

hmm, well roughly speaking carbs are going to cost around 400 without management, i dont think i will manage to get throttle bodies for less than a bag of sand and it will probably need to be started at 5am sometimes and i didnt think that it would like that
Warren G
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24th Apr 08 at 18:34   View User's Profile U2U Member Reply With Quote

carbs will be harder to start from cold tbh

will cost the same if you use bike throttle bodies

plus abit extra for fuel/spark management and abit more for mapping




if doing carbs i would get some twin 45's on the correct manifold
Dan295
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24th Apr 08 at 18:45   View User's Profile U2U Member Reply With Quote

a similar project to what i would like to do in future used webbers but then changed to r1 carbs, they were a lot lot quicker, i will look into throttle bodies as i wanted to use standalone management anyway,
Dan295
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24th Apr 08 at 18:56   View User's Profile U2U Member Reply With Quote

any advice on the throttle bodies to go for?
Warren G
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Location: Kent
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24th Apr 08 at 18:57   View User's Profile U2U Member Reply With Quote

r1 bodies as thats what they use on the redtop in TV not long ago
Dan295
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24th Apr 08 at 19:00   View User's Profile U2U Member Reply With Quote

theres a set of zx12r bodies on the bay, is there anything in particular i should be looking for? i know tapered ones are better and then possibly saab injectors would be better as well with a decent map
Warren G
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Location: Kent
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24th Apr 08 at 19:32   View User's Profile U2U Member Reply With Quote

you can use the bike injectors, saves making holes for injectors in manifold

i was thinking for r1 carbs earlier not bodies


all you want the throttle bodies for is a tps sensor, butteries and throttle linkage and will adapt easierly to a inlet manifold, just look at the pics
Dan295
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24th Apr 08 at 19:39   View User's Profile U2U Member Reply With Quote

i didnt buy this months issue of tv
Warren G
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24th Apr 08 at 19:41   View User's Profile U2U Member Reply With Quote

a few months ago, they set up r1 carbs on a redtop

Dan295
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Location: London
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24th Apr 08 at 19:44   View User's Profile U2U Member Reply With Quote

google it is
Dan295
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24th Apr 08 at 19:45   View User's Profile U2U Member Reply With Quote

do you know mr warren if the r1 carbs had/used a airbox or just had a large filter type thingy
Warren G
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Location: Kent
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24th Apr 08 at 19:48   View User's Profile U2U Member Reply With Quote

no filters

they angle up due to the design


best bet, get hold of that copy! think it gives you jet sizes etc etc

surely if you get a redtop with a dizzy you dont need any management.......
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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24th Apr 08 at 19:52   View User's Profile U2U Member Reply With Quote

Aye, you can use an old cavalier 1980's carb dizzy setup(std xe one is no use)

Dan295
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Location: London
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24th Apr 08 at 19:54   View User's Profile U2U Member Reply With Quote

this is that invaluable information i was after, so in that case do i want an early xe or a late type?
Warren G
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Registered: 14th May 06
Location: Kent
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24th Apr 08 at 19:59   View User's Profile U2U Member Reply With Quote

early xe with dizzy cap

then piece of piss to run carbs

i still think you need something extra aswell though.... becasue you car getting rid of the ecu, cant think what

Dan295
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Location: London
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24th Apr 08 at 20:01   View User's Profile U2U Member Reply With Quote

extra as in what? im trying to find this guys build and i iwll try to dig up that one of the xe in tv, do you know which one it was/what was on the front cover
Warren G
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Registered: 14th May 06
Location: Kent
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24th Apr 08 at 20:03   View User's Profile U2U Member Reply With Quote

cant rember

becasue you are getting rid of the standard ecu/injector system, i think you need a hall sensor is it? or sothing to pick up crank sensor

something is telling me you do, im sure iv looked into it before



make you own?
http://cgi.ebay.co.uk/C20XE-Redtop-Inlet-Manifold-Flange-Bike-carbs_W0QQitemZ330230344059QQihZ014QQcategoryZ100921QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


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