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Underbody braces, turbos and more!

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PostPosted: Tue Aug 08, 2006 6:40 pm 
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Joined: Mon Mar 27, 2006 4:04 pm
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Location: Lincoln
I know this may seem a silly question,
but has anyone ever used carbs as throttle bodies?
seeing as on the GTi engine the injectors are on the head so the carbs just need to control air flow? Im only thinking of this as i have a set of twin 45 carbs but still want to run injection (MegaSquirt) so the fuel is controlable and so i dont need to change jets etc. and i thought twin 45s would flow more air than the standard manifold and single throttle body? would you also get the same kind of sound as if running the carbs?
:roll:


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PostPosted: Wed Aug 09, 2006 6:56 am 
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Would this be better in the normal DOHC section or is it ok in the Carb section?


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PostPosted: Thu Aug 10, 2006 6:02 am 
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Can anyone point me in the direction of an answer to my question?
I have searched, but its hard to find anything on it.


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PostPosted: Thu Aug 10, 2006 10:36 am 
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Location: Tempe, AZ
I imagine the hard part would be figuring out something for a TPS. You never know though, maybe a TPS meant for the weber fuel injection would work on a carb. Google search for some place that sells Weber fuel injection parts and give them a call, see what they think.

I just searched and found this place, looks like a good start. http://www.redlineweber.com/SEMA2002/fl ... e_body.htm


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PostPosted: Fri Aug 11, 2006 2:59 pm 
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Location: Durham, UK
Hi,

Long time ago, Cars and Car conversions done what you want to do.
They just used carbs (45 DCOE) then cut it up and used as TB.
They used Emerald for mapping by Dave Walker.
If I can recall, it worked very well.
Why don't you used bike carbs ot Throttle Body of Bikes'.
They do come with TPS and cheap enough to buy.
Well, if you sell your DCOEs, (I'm sure it is for Mini) you will be able to buy and change left over from it sale!

Cheers
Atchi


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PostPosted: Fri Aug 11, 2006 5:15 pm 
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Yeah, the ones i have are Dellorto 45M (turbo version) so if i cleaned them up and rebuilt them then i think they'd be worth a fair bit. But i wasnt really planning on selling them for a while. Think they might be getting harder to find especially with the plenum and intake manifold :D

Image


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PostPosted: Tue Aug 22, 2006 3:18 am 
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Joined: Fri Mar 24, 2006 3:53 am
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Location: Ireland
Yes definitely don't use the carbs - buy a set of bike throttle bodies instead. I have GSXR750 ones on mine running the injectors in the standard Suzuki location. However I'm eventually going to use the injectors that came on the throttle bodies because these are further away from the valves and should give a bit better top end power. If you really wanted to get fancy you could use all 8 injectors in a phased set up.

Sell the carbs and you should easily cover your costs.

Remember also that 45mm carbs are not 45mm all the way through because of the area where the jets are. The only restriction in the bike throttle bodies will be the butterfly.


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