andrew,
thanks for the response.
i'm talking about aux venturies and as far as my research tells - 38mm is fine.
regrading the pinging:- i also discovered a water leak where the weber manifold is bolted to the head. so i pulled the head off and had the water jackets blocked off (welded) and had both the manifold and head faces machined. i recalculated the comp ratio - bad news - it was 11.0:1. i am aware that some people are running very high compressions, however in my situation i couldn't due to various reasons & i don't really want to be fiddling with the car all the time (daily transport). so the machine shop removed 5cc from the combustion chambers. this now gives me 10.2:1 (583.5 cc swept vol, 46.8 cc head, 10.5 cc pistons, 6 cc gasket).
i plan to assemble it this arvo after work and then rejet the carbies on friday. i'm thinking 55f9 idles, 150 mains and 180 airs. see how it goes. i hope to achieve 35 or 36 deg total timing advance and enjoy the car without pulling apart all the time. but - it only takes 20-30 mins to remove the head now !!!!
i'll keep you posted & i'm hoping to give a good workout at the datnet run drags next weekend.
dunc.
>From: andrew smith <[EMAIL PROTECTED]>
>Reply-To: [EMAIL PROTECTED]
>To: [EMAIL PROTECTED]
>Subject: Re: webers
>Date: Wed, 06 Feb 2002 07:08:57 +0800
>
>Duncan,
>Do you mean the aux venturies or the chokes.I think you said you had
>38mm chokes which would be close to the mark.You may find 36's give a
>bit better drivability that sometimes gives the impression of better
>overall performance but its hard to say as every combo reacts
>differently.Find someone who has some to borrow and try it out.How did
>you go with that pinging problem?Anyone in perth who is after weber
>chokes to try contact me as a mate has plenty including odd sizes up to
>43.
>Andrew Smith
>
>Duncan Shillito wrote:
>
> >
> >
> > i'd like a copy thanks malcom. i'm also undecided which venturi sizes
> > to use in my 45s.
> >
> > dunc.
> > >From: "E Smith"
> > >Reply-To: [EMAIL PROTECTED]
> > >To:
> > >Subject: RE: webers
> > >Date: Wed, 6 Feb 2002 07:02:14 +1100
> > >
> > >I'd like a copy thanks Malcom.
> > >
> > >Cheers
> > >Feral Errol
> > >
> > >-----Original Message-----
> > >From: [EMAIL PROTECTED]
> > >[mailto:[EMAIL PROTECTED]]On Behalf Of maldat
> > >Sent: Tuesday, 5 February 2002 11:13 PM
> > >To: [EMAIL PROTECTED]
> > >Subject: Re: webers
> > >
> > >I'll sort out a pic of down the suckers,then you will see,Would you
> > like a
> > >pic
> > >of the carbs with the tops off,so you can see some heavy duty mods?
> > >
> > >Its a hoilday tomorrow,I've got half the day off,E.mail me if you
> > want a pic
> > >and I'll sent them at the same time tomorrow after noon(later today
> > to be
> > >correct).
> > >I have no idea of what HP it was putting out last time this set up
> > was up
> > >and
> > >running but it will be back with more CC's .
> > >Webers can be changed to flow and work a hell of a lot more than you
> > can
> > >with
> > >the copies like solox and Delo's.
> > >Rememebr if you break delo's or solox's they carn't be welded.Webers
> > >can,that
> > >means you can change the way they work.
> > >I can say you need more than a Porsche to catch me.
> > >
> > >You'll See
> > >When you take guys for a drive and they own big V8's and they say
> > your
> > >little
> > >Jappa is fast and No I dont want a drag,your on to something....
> > >Malcolm
> > >
> > >Richard Clough wrote:
> > >
> > > > Twin 40's properly choked and jetted are great for the road but
> > twin 45's
> > > > will be necessary for 180HP from an L20B.
> > > > ----- Original Message -----
> > > > From: "Justin Friedrichs"
> > > > To:
> > > > Sent: Friday, 1 February 2002 12:15 PM
> > > > Subject: webers
> > > >
> > > > >
> > > > > Listers
> > > > > What are the limitations of the twin 40mm webers?, like what
> > would
> > > > > be the max horse power available when used on a worked L20, with
> >
> > >oversize
> > > > > pistons and goes quite hard with a DGV.
> > > > > Would twin 45's be overkill ? for say 180- 200Hp flywheel??
> > > > >
> > > > >
> > > > > Justin
> > > > >
> > > > >
> > > >
> > >
> > >
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