One weber carb or four carbs what would you do?

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One weber carb or four carbs what would you do?

Postby ollieboy » Wed May 03, 2006 1:14 am

On my race car I am fitting when I get round to it a weber carb but I have also being offered a carb with one for each cylinder on. Which would you think would be the best bet for good performance? I think the four carbs but am I missing something that they don't have that the weber would?
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Postby vhpacer » Wed May 03, 2006 2:19 am

Four carbs??? 8O

I dont think so mate...do you mean a four barrel carb?

Or twin 2 barrels??
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Postby ollieboy » Wed May 03, 2006 2:25 am

No seriously 4 carbs, I was even shown each seperate carb. I will try and get a pic of it sometime in the next week.
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Postby vhpacer » Wed May 03, 2006 2:28 am

I'd like to see that.

I forgot to ask, what motor is it?
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Postby ollieboy » Wed May 03, 2006 2:34 am

Its a 4k.
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Postby AE91Sprinter » Wed May 03, 2006 2:44 am

dunno about best performance, but id go for the single carb. Tuning 4 carbs correctly would be a nightmare, 2 is bad enough
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Postby Punter » Wed May 03, 2006 10:44 am

So I take it this is a motorbike setup then, if so it will be (as said above) a bitch to tune
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Postby Dell'Orto » Wed May 03, 2006 12:33 pm

Is it those Keihin(?) bike carbs? It would be cool, for the sheer fact of having 4 carbs, but tuning them :? Just use a pair of 45 DCOE's if you're making some big horses with it.
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Postby Mr Revhead » Wed May 03, 2006 2:35 pm

just tune it like you would a pair webers.... whats the big deal?
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Postby Dunny » Wed May 03, 2006 2:39 pm

Mmm, Boost wrote: Just use a pair of 45 DCOE's if you're making some big horses with it.


45's are too big for a 4k, 40's would be a much better option and also easier to get
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Postby Mr Revhead » Wed May 03, 2006 3:09 pm

lol yeah, i had 45s on my 1770cc escort.... theyd flood a 4k!
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Postby Dell'Orto » Wed May 03, 2006 3:13 pm

Dunny wrote:
Mmm, Boost wrote: Just use a pair of 45 DCOE's if you're making some big horses with it.


45's are too big for a 4k, 40's would be a much better option and also easier to get


Depends on how hard tuned it is really...if its justifiable to have 4 carbs, then I think a pair of 45's would be too :lol:
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Postby Dunny » Wed May 03, 2006 4:21 pm

Mmm, Boost wrote:
Dunny wrote:
Mmm, Boost wrote: Just use a pair of 45 DCOE's if you're making some big horses with it.


45's are too big for a 4k, 40's would be a much better option and also easier to get


Depends on how hard tuned it is really...if its justifiable to have 4 carbs, then I think a pair of 45's would be too :lol:


I currently have 45's on my 4k now and they will be getting binned in favour of some 40's for the next race season.
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Postby TRD Man » Wed May 03, 2006 7:08 pm

Yes, 40's are well big enough for 4K. And only then if you had a cam & exhaust system & some headwork to match.

Mikuni's are the carbs you're thinking of.
These are Solex's - very similar. IIRC I think they're about 38's.

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Postby Virtual Genocide » Wed May 03, 2006 8:13 pm

Dunny wrote: I currently have 45's on my 4k now and they will be getting binned in favour of some 40's for the next race season.


Can we make that bin my place? Or has sheldon taken 1st dibbs??
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Postby Dunny » Wed May 03, 2006 10:13 pm

Virtual Genocide wrote:
Dunny wrote: I currently have 45's on my 4k now and they will be getting binned in favour of some 40's for the next race season.


Can we make that bin my place? Or has sheldon taken 1st dibbs??


Um already spoken for :wink:

What would you put them on anyways :lol:
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Postby no_8wire » Wed May 03, 2006 11:10 pm

4 is just cooler... 8)
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Postby fangsport » Thu May 04, 2006 12:56 am

a single downdraft is a far cheaper way of improving the stanard set-up, and will offer good performance for a meduim tuned motor.
if you are building an 8k+ screamer then sidedrafts would be the only way to go.


Dunny wrote:
I currently have 45's on my 4k now and they will be getting binned in favour of some 40's for the next race season.
i could offer a very mint set of DHLA40's as part payment, jetted to suit.
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Postby Dunny » Thu May 04, 2006 12:53 pm

fangsport wrote:
Dunny wrote:
I currently have 45's on my 4k now and they will be getting binned in favour of some 40's for the next race season.
i could offer a very mint set of DHLA40's as part payment, jetted to suit.


Thanks but I already have 40's lined up, and personally I'm a weber man. the 45's are not exactly getting sold, just a long term swap :wink:
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Postby overkill » Fri May 05, 2006 1:35 pm

http://hometown.aol.com/dvandrews/dellorto.htm

good link for carb selection ;D
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