40 Dellorto Jetting for 1916 pobjoy

aintgotitmusthaveit Officially Full-On Dubber

295 posts · joined Jun 2006 · 25 Jan 2010, 5:23 pm

#759325

Question asked on ebehalf of a mate of mine,
He bought a 1916 pobjoy with cadrons and recently managed to score a new set of dellortos (from someone at the an alfa club).
So having purchased all manifolds and linkage we are about to give them a go. What jets /chokes /emulsion tubes etc are people running with these dells carbs in similar engines.

Note its not the "steroid" cam engine.

hellbugged 48's and straight cuts

5,080 posts · joined Apr 2003 · 25 Jan 2010, 6:35 pm

#759340

35-36 vents
180 airs
155-160 mains
60 idles
55 pumps

Will be very close

Bizarre Moderator The artist formerly known as blue74l

12,789 posts · joined Aug 2002 · 25 Jan 2010, 8:58 pm

#759361

Most Dells come with 9164.2 emulsions
Mains 4.2 x vent size
I have 34's is a stockish 1916 - so 145 mains
Started with 60 idles and it was popping a bit
Went to 65s and all is fine

Futue te ipsum!!!