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1600 Learner Dubber

9 posts · joined Nov 2009 ·

#756285
Hey all you type 3 'thusiasts, and lovers of lesser aircooleds, (just kidding I love them all). Was hoping someone could share some weber knowledge with me. Am looking at the CB Performance IDF kit for type 3, that comes with everything except carbs. I believe the 36 IDF's from Alfasuds and Sprints will fit these manifolds. Anybody done this? Love the Forum, cheers.

Peter_D_C Seriously Crusin Dubber

102 posts · joined Jun 2008 ·

#757288
I have the exact set up you mentioned. Fire away with any q's.

Fits fine with plenty of room under the decklid.

The air filters are a bit restrictive, so am putting on some ramflow's when the second one finally turns up (the shop, naturally, only had one when i went).
1969 Type 3 Squareback

64vwmark Fahrvergnugen

930 posts · joined Dec 2004 ·

#757308
I have 36 IDF's on the 1641 in my buggy. They work gret on a 1600 once you richen them up a bit. The air bleeds on the idle circuit are a little big (2mm). I soldered mine up and redrilled them at 1.5mm. That made a massive improvement. I also swapped from 47 idle jets up to 50's which helped a lot also.


Beach Buggy
74 L Beetle
Mk4 Golf

Peter_D_C Seriously Crusin Dubber

102 posts · joined Jun 2008 ·

#757342
Hi Mark,

How much of an improvement was soldering / re-drilling the air bleeds?

Ive got a mild 1915 and am running 60 idles. 32 vents also. From memory reading somewhere the 36's require larger than usual idles to counter the air bleed size?(i could be wrong). Is that what you found?
1969 Type 3 Squareback

Bizarre Moderator The artist formerly known as blue74l

12,785 posts · joined Aug 2002 ·

#757355
When i was running 36's i found the small idles worked best ( but blocked VERY easily)
1.25 x the body size seems to be the formulae

see here
http://www.aircooled.net/gnrlsite/resource/articles/jetting.htm

There is a link called http://www.carburetorclinic.com/36_idf.htm that is all about rebuilding IDF36s that is VERY good but the link doesnt seem to be working for me

Barry
Futue te ipsum!!!

Bizarre Moderator The artist formerly known as blue74l

12,785 posts · joined Aug 2002 ·

#757403
mmm....thats the guy but that is excerpts from the article he wrote

Dunno if i agree with the jetting

Mine was banging BIG TIME with 50's in there

I was using F11
No way could i get the F57's to work

In the end i was

32 vents
F11
45 idles
135 mains
180 or 200 airs

Ran OK - would like to go back and try again with IDF 36s

Personally - when i had Webers i though Weber Dells, they are all the same
I now have DRLA40's
Chalk and cheese
Give me Dellortos any time
Futue te ipsum!!!

64vwmark Fahrvergnugen

930 posts · joined Dec 2004 ·

#757416
Peter_D_C wrote:Hi Mark,

How much of an improvement was soldering / re-drilling the air bleeds?

Ive got a mild 1915 and am running 60 idles. 32 vents also. From memory reading somewhere the 36's require larger than usual idles to counter the air bleed size?(i could be wrong). Is that what you found?
The improvement with soldering / redrilling the air bleeds is very noticeable. Not only does it richen them up but it removes a big flat spot on acceleration.


Beach Buggy
74 L Beetle
Mk4 Golf

1600 Learner Dubber

9 posts · joined Nov 2009 ·

#757958
Thanks all for your replies and info. Thanks for the link Bizarre, will go with the ida's as they were very cheap. Peter_D_C and 64vwmark, might check in with any q's when I am closer to doing the job if thats ok. Am planning in advance, I don't even have the car yet, gotta pick it up from interstate. Getting a bit excited. Cheers.