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Author throttle bodies - carburettors (sp)
Kurt
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Registered: 23rd Oct 05
Location: Hi
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20th Mar 08 at 19:32   View User's Profile U2U Member Reply With Quote
whats the difference?
DAZ1985
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Registered: 3rd Sep 06
Location: Scholar Green, Cheshire
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20th Mar 08 at 19:36   View User's Profile U2U Member Reply With Quote
tbs have injectors
carbs dont

????
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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20th Mar 08 at 19:40   View User's Profile U2U Member Reply With Quote
Tb's=Proper Bo
Carbs=OK
RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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20th Mar 08 at 19:51   View User's Profile U2U Member Reply With Quote
Difference is fuel metering. Carb works on venturi principle to add correct amount of fuel, whereas with throttle bodies they use EFI to meter the air mass flowing in to add the correct amount of fuel.
Kurt
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Registered: 23rd Oct 05
Location: Hi
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20th Mar 08 at 19:53   View User's Profile U2U Member Reply With Quote
so you need ecu's, sensors etc to run tb's?
RCS
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Registered: 26th Jan 05
Location: Lichfield/Dundee
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20th Mar 08 at 19:56   View User's Profile U2U Member Reply With Quote
Yup.
Ste
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Registered: 5th Mar 03
Location: Taif, Saudi Arabia
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21st Mar 08 at 04:03   View Garage View User's Profile U2U Member Reply With Quote
TBs, bit more power due to greater accuracy in tuning, carbs are old school cool, noisy, powerful and easier on the wallet.

I would rather lose by a mile because i built my own car, than win by an inch because someone else built it for me.
Simon_16v
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Registered: 14th Aug 06
Location: Yorkshire
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21st Mar 08 at 08:51   View User's Profile U2U Member Reply With Quote
You require an ecu for tb's and you dont need one on carbs
Rob H
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Registered: 28th Oct 00
Location: Staffordshire Drives: Astra SRi
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21st Mar 08 at 10:25   View User's Profile U2U Member Reply With Quote
It's worth mentioning what it costs you in original outlay for the TB's, you'll probably make back in Fuel efficiency, not having to have the carbs re-tuned every so often, and don't have as many issues with emmissions come MOT time.
Vaux Lad
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Registered: 15th Dec 04
Location: Stoke-on-Trent
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21st Mar 08 at 11:41   View User's Profile U2U Member Reply With Quote
And it'll run much better and drive better.
22B
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Registered: 9th Sep 04
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21st Mar 08 at 14:11   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by SRi_Si
You require an ecu for tb's and you dont need one on carbs


not strictly true but there are a few carburettors out there that are run through the ECU which pulses a signal to the solenoid valve in the carb.

 
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