One weber carb or four carbs what would you do?

ollieboy · Post by **ollieboy** » Wed May 03, 2006 12:14 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?

vhpacer · Post by **vhpacer** » Wed May 03, 2006 1:19 am

Four carbs???

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

Or twin 2 barrels??

ollieboy · Post by **ollieboy** » Wed May 03, 2006 1:25 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.

vhpacer · Post by **vhpacer** » Wed May 03, 2006 1:28 am

I'd like to see that.

I forgot to ask, what motor is it?

ollieboy · Post by **ollieboy** » Wed May 03, 2006 1:34 am

Its a 4k.

AE91Sprinter · Post by **AE91Sprinter** » Wed May 03, 2006 1:44 am

dunno about best performance, but id go for the single carb. Tuning 4 carbs correctly would be a nightmare, 2 is bad enough

Punter · Post by **Punter** » Wed May 03, 2006 9:44 am

So I take it this is a motorbike setup then, if so it will be (as said above) a bitch to tune

OMG so shiny! · Post by **Dell'Orto** » Wed May 03, 2006 11:33 am

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.

Post by **Mr Revhead** » Wed May 03, 2006 1:35 pm

just tune it like you would a pair webers.... whats the big deal?

Dunny · Post by **Dunny** » Wed May 03, 2006 1:39 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

Post by **Mr Revhead** » Wed May 03, 2006 2:09 pm

lol yeah, i had 45s on my 1770cc escort.... theyd flood a 4k!

OMG so shiny! · Post by **Dell'Orto** » Wed May 03, 2006 2:13 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:

Dunny · Post by **Dunny** » Wed May 03, 2006 3:21 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

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.

TRD Man · Post by **TRD Man** » Wed May 03, 2006 6:08 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.

Aren't they beautiful?

Note the manifolds and the adaptor plate. Genuine TOSCO gear (prelude to TRD).

Virtual Genocide · Post by **Virtual Genocide** » Wed May 03, 2006 7:13 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??

Dunny · Post by **Dunny** » Wed May 03, 2006 9:13 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:

no_8wire · Post by **no_8wire** » Wed May 03, 2006 10:10 pm

4 is just cooler...

fangsport · Post by **fangsport** » Wed May 03, 2006 11:56 pm

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.

Dunny · Post by **Dunny** » Thu May 04, 2006 11:53 am

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:

overkill · Post by **overkill** » Fri May 05, 2006 12:35 pm

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

good link for carb selection ;D