Weber 40 DCNF's on a pinto?

[Ade B]

Not the usual way, but can it be done?

 

Just been offered a cheap set and could be handy on my Capri

[J_mk1]

dont see why not you just need a manifold....

[Ade B]

Yeah that's the thing....... can you get one for that application?

Usually used on FWD CVH's and Zetecs

[tim]

dont know what all the letter means after then but 40 are to small for pintos,

[Vista]

dont know what all the letter means after then but 40 are to small for pintos,

 

If it's a standard(ish) engine 40's aren't necessarily too small for it, they're just not ideal. A pair of 40's can for instance flow more fuel and air than the standard twin choke, but if you're going for any state of tune on your Pinto then Tims right and you want at least 45's.

[Ade B]

Just now I'm running 150BHP on a rally cammed 2.0 fueled by a 38 DGAS!

 

I know 45's are ideal but surely 40's would fuel better? (and calm down the mega lumpy tickover!)

[Arched Escy]

If you can get a manifold they'd do the job.Might need rejetting though.

[Vista]

Just now I'm running 150BHP on a rally cammed 2.0 fueled by a 38 DGAS!

 

I know 45's are ideal but surely 40's would fuel better? (and calm down the mega lumpy tickover!)

 

Lumpy tickovers are more from the cam than the carbs, 45's are ok, it's not till you get up to running 48's and 50's that you get grumpy carb syndrome lower down the rev range.

[Ade B]

Just now I'm running 150BHP on a rally cammed 2.0 fueled by a 38 DGAS!

 

I know 45's are ideal but surely 40's would fuel better? (and calm down the mega lumpy tickover!)

 

Lumpy tickovers are more from the cam than the carbs, 45's are ok, it's not till you get up to running 48's and 50's that you get grumpy carb syndrome lower down the rev range.

 

The tuner that set it up's theory was that a lot of the lumpiness was down to the small carb...... personally I always thought the 314 degrees cam duration was more to blame

 

Would be interesting to see what behavior changes twin carbs would do though.

[escort new boy]

40s are fine and yeah the 45 manifold is the same

[Arched Escy]

40s are fine and yeah the 45 manifold is the same

Who said anyhting about 45 manifolds?

[BIG G]

I tried this a few years ago. Bouught the carbs and made the manifold out of steel. you could make adapter plates for the IDF manifold but thats not cheap. As fo the carbs they ran great but were a bit tall for filters so binned them for my DGAS worked great but need must and the 45s followed. So my words of advise would be save your money for the 45s the best comprimise i have spent so much money on different systems

[escort new boy]

40s are fine and yeah the 45 manifold is the same

Who said anyhting about 45 manifolds?

 

no1 but ive allways thought were the same

[Fiesta Steve]

40s are fine and yeah the 45 manifold is the same

Who said anyhting about 45 manifolds?

 

no1 but ive allways thought were the same

 

40mm Manifold is for 40's and 45mm for 45's !!

[escort new boy]

40s are fine and yeah the 45 manifold is the same

Who said anyhting about 45 manifolds?

 

no1 but ive allways thought were the same

 

40mm Manifold is for 40's and 45mm for 45's !!

 

my bad

[Gonzo]

What the fook are dcnf's? eh? somebody please enlighten the ignorant...

[erick]

Weber’s 40 DCNF Carburetor is a twin-barrel down draft carb original equipment on Ferrari, Maserati and Fiat.

 

I am using the 42 dcnfs from a maserati on my 3.0s

[Gonzo]

Oh I see. The pretty ones then.