Jets for webber 40s.

[marc69]

I have twin 40s but they are jetted for a 1.8 ford.

There is a list here for the different jets, do I need to get all of them? i.e. will the choke jets etc be used on track driving or can some be let as they are?

1400cc


Choke size: 27mm
Main Jets: 110
Emulsion Tubes: F11/F15/F9/F16
Air Correctors: 160
Idle Jets: 40/F9
Pump Jets: 30/35
Auxiliary Venturis: 4.0




Just trying to see if I can cut any costs as buying all the jets seems to be quite expensive.

Also, I have no trumpets, does this cause running problems? Can I attempt to make trumpets (not worried about how they look)?

Thanks

[mowgli]

they need setting up by somebody decent, as in some old school engine tuner with a cupboard full of weber bits & a stack of knowledge.

[Mike]

What these guys dont know about carb's isnt worth knowing...

http://www.aldonauto.co.uk/shop/

[BRoadGhost]

Shame you're not down south, I know a chap that jets by turning them out by hand using a drill bit ;o

[marc69]

Shame you're not down south, I know a chap that jets by turning them out by hand using a drill bit ;o

I'll send them down!!!!

[gearbox90]

Shame you're not down south, I know a chap that jets by turning them out by hand using a drill bit ;o

Glad i`m not down south then .

[Mike]

Glad i`m not down south then .

Im guessing youve never had engine work done by proper old skool boys then.

[gearbox90]

yes mate i have had work done by PROPER old school boys

[mowgli]

gearbox... if you'd read any really old CCC magazine tuning articles, you'd know that drilling out jets with proper accurate drill bits was standard practice for decades....

the amount of knowledge that is rapidly dying out is quite frightening

[marc69]

Well I assume my jets couldn't be drilled out as I am going from what ran 1800 ford to 1400 vauxhall.

Should I use filler to make them smaller? (clearly joking!!!!)