40mm or bigger

fly33boxer · #1 (**permalink**) 09-25-2007, 09:01 PM

Just curious but does anyone have or know someone who would be willing to sell a set of 40mm or bigger carbies for a 33 1.7??

77SudTi · #2 (**permalink**) 09-25-2007, 09:27 PM

Considering the Autodelta Suds had 44 Idf's on smaller capacity engines...more fuel and air cant hurt...Id go 44's.....

You need a set of these puppies...

Oh and out of interest, didnt your 1.7L come with 40's? Mine had 36's which I think were from someone previous to me swapping them...

Greek · #3 (**permalink**) 09-26-2007, 12:40 AM

Try and find from an old porche... They also have IDF's...

fly33boxer · #4 (**permalink**) 09-26-2007, 02:14 AM

hehe yep someone swapped mine to 36's too....theres a shambles going on i tells ya.. MMMM nice 44s so your saying i can have them?? hehehe only joking nice and clean though

budweiser_sud · #5 (**permalink**) 09-26-2007, 02:56 AM

http://cgi.ebay.com.au/WEBER-IDF-40-...QQcmdZViewItem

There you go

The bigger the carb the bigger the cam and port job you'll need to get the most out of it I reckon. Are you going to install Columbo Borianni cams? I can possibly obtain the original Autodelta cam profile which you could use to have a custom set made. The Autodelta profile is designed for the 44IDFs.

~Benjamin

Serpent33 · #6 (**permalink**) 09-26-2007, 10:27 AM

c&b cams actually are not too far off from standard. The street ones that is.

fly33boxer · #7 (**permalink**) 09-26-2007, 05:29 PM

yea that would be sweet getting the profile

enri · #8 (**permalink**) 09-26-2007, 06:35 PM

a 40mm will have outright performance benefits over a 36mm only if it has larger chokes (venturies) fitted, which normally is not the case.
44's probably be the go

greku · #9 (**permalink**) 09-28-2007, 06:51 AM

check on some serie 3 33 with a 1.3, mine has 40's on it and from the factory.