So anyone use webers? they make a carby kit for my rola and just wondering what everyones opinion is. Any hands-on reviews?

Only fully effective with a Cam and Extractors, one better is porting the head out as much as possible.

Down draft, side draft?

good carbies, some like the 40's don't hold a tune all that well, not a problem if you know how to tune them :)

 

32/36's are a great carb but as said above cannot be used to full potential without adequate mods.

 

i personally prefer dellorto for street use but i don't want to start a weber vs dellorto war. :)

28/36 is a great mixture of fuel economy and performance once at full throttle

well the kit for my car is a twin (or single) DCOE 48 side draft. what does everyone think of this, for road usage... fuel economy isn't really a factor as i don't care. i would be getting exhaust mods, porting, cams and the kit includes a new intake manifold. the kits contain

2 x 48 DCOE Weber Carburettors

 

1 x Redline Manifold to suit (12-3062)

 

1 x LP1000 performance linkage kit

 

2 x Soft mount kits

 

2 x sets manifold studs

 

1 x fuel banjo T-piece (optional)

 

and in the config i want are AUD$2,057.32

what do u reckon, good value?

No way on a 4k.

No way on a 4k.

:y: :y: As above.

changing to a 5k and i can either get a 48, 45, or 40

changing to a 5k and i can either get a 48, 45, or 40

 

I would not be running twins on either.

there wont be enough air speed to run those!

Upgrade to a 7k for that.

i would be getting exhaust mods, porting, cams

 

there wont be enough air speed to run those!

 

Upgrade to a 7k for that.

 

Rubbish.

Rubbish.

 

if taken to an extreme, the carb could be so large as to not draw in any gas at all because of not enough air speed. Fuel in the carb has two forces working on it: gravity and atmospheric pressure. Speeding up the airflow through a venturi causes the air to have a high pressure on one side and a lower pressure on the other. It is the pressure differential that is strong enough to overcome the force of gravity, and push fuel through the main jets.

 

If airflow is too slow, there will be no fuel flow, such as there is no flow when the engine is stopped.

While we're at it.

What would be the biggest twin side drafts anyone would run on a hot 5k? (Supercharged).

I have no idea as I have always worked with down drafts (mainly Holleys).

 

Sorry to the OP for butting in on your topic.

P.S. I have found a company in the US (Webercarbsdirect.com) very cheap, (45dcoe US$349.95)just sent them an email to see if they will post to Aus.

Will post on here if/when I get an answer.