Simon
The truth is that you really only need Webers for racing or competitionbut so
whatthey look fantasticso why not.
I'm sure Kees will tell you to get Dellortos and he may be right, but Webers
are what everybody goes for.
The most common set up is using 45 DCOE's with 36mm chokes. Mine use the
following
Choke 36mm
Aux venturi 4.5
Main jet 145
air corrector 155
emmulsion tubes f16
Idle jet 55 f6
needle valve 200
pump jet 45
pump spill 40
Most of those came standard with the carbs out of the box, although a couple
of items were changed during the rolling road set up, the idle jet for one.
Setting up on a rolling road is essential but once they are properly set up,
you forget them.
If they are spitting they are not correctly set. (They might spit a bit on
start up when cold)
You will also need to budget for body work modifications. You have to cut
away the diagonal side brace, contrary to popular myth you do not need to cut
out a piece of the shroud to change jets etc, although it does improve access
to the stacks and whatever filters you put on.
You will have to decide on a set of intake manifolds. You can get them from
the usual suspects. Obviously Welch ones are popular and claim to be virtually
identical to the ones used on the last works rally cars, although slightly
shorter so they don't need to have support towers. AH Spares might be worth a
look as they have been developing their performance parts in conjunction with
Anders Schildt. Or rather its Anders Schildt who has been developing them. The
longer intake manifolds on the works cars were probably the reason for the
shroud cut out, but as mentioned, this is not necessary with most of the
modern versions.
If you are determined to blow all your christmas money you should consider
switching to a cable throttle which is a big improvement. Beware though its a
slippery slope!!! next come the forged pistons, aluminium head, aluminium
back plate, roller rockers, lightweight fly wheel and alumium pulleyetc..
Actually the DWR deep V pulley is a nice upgrade and not that costly.
Good luck
Derek
On 13 Dec 2013, at 20:28, Simon Lachlan <simon.lachlan@homecall.co.uk> wrote:
> I am thinking about putting 3 webers or dellortos on my 3000.
>
> It has a big bore bunch of bananas exhaust and a Denis Welch fast road cam
> so it's half way there, if you see what I mean.
>
> Now, wise gurus will say "if it ain't broke, don't fix it" and one already
> has! But these things have a dreadful fascination....a bit like Everest!
>
> So, in any particular order, what does your experience say?.....
>
> Dellortos or Webers?
>
> Which size/type? 45DCOE seems to be the Webers that most people mention or
> sell. (Are they really made our of platinum?)
>
> Are there any 6 cyl cars out there whose inlet manifolds fit ours? ie the
> Datsun 250Z or the (old) BMW 3.0? Certainly, the Datsun people seem to have
> plenty of bits and pieces; if only they'd fit.
>
> What other tips?...
>
> A bit late, but it's amazing how responsive Father Christmas can be.....
>
> Simon
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