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Fri Jun 22, 2018 9:42 pm

I'm wanting to buy 2 weber 40 idf carbs, were is the best place to buy. I see prices all over the place and it seams everybody has them. are redline or fajs good, help me out here I just need the carburetor only.
Jay D.

Fri Jun 22, 2018 9:58 pm

Yeah, IDF's would be really nice Redline is the importer for them. Generally where 40 IDF Weber carbs are used 36 DRLA Dells will also work. The Dells are actually a nicer carb they have 5 progression holes. You may find some used online. If you need help I am not far away. Be happy to help you through a rebuild on some used ones. Lately, I have been playing with Zenith NDIX 32's which are best suited to small displacement engines like No Stroker No Bore or perhaps 88 bore 69 stroke, the problem with them is finding the manifolds. Maybe these: Rebuilt Zenith 32 NDIX & P Saunder & Sohn Price: $500 pair.
VIDEO with Dells.
VIDEO with Zeniths.

Sat Jun 23, 2018 7:30 am

badsix wrote: I'm wanting to buy 2 weber 40 idf carbs, were is the best place to buy. I see prices all over the place and it seams everybody has them. are redline or fajs good, help me out here I just need the carburetor only.
Jay D.

https://www.thesamba.com/vw/forum/viewtopic.php?t=698263

https://www.thesamba.com/vw/forum/viewtopic.php?t=698423
https://www.thesamba.com/vw/forum/viewtopic.php?t=695427

Sat Jun 23, 2018 7:43 am

Last year I built a 1915 for a friend and needed a set of 44 IDFs. Weber Carbs Direct had a great price and was only a 30 minute drive to get. Iwas dealing with CB and asked why their IDFs were more money. I was told theirs are made in Spain and the ones from Weber Direct were Chinese. I called Weber Direct and they confirmed what CB said.

I bought them from CB and they worked perfectly out of the box.

Sat Jun 23, 2018 8:34 am

http://vwparts.aircooled.net/CB-Performance-Dual-I...rb-kit.htm

http://www.cbperformance.com/product-p/6409.htm

Go with one of these kits, if you're using a oem fan shroud.

Sat Jun 23, 2018 8:49 am

badsix wrote: I'm wanting to buy 2 weber 40 idf carbs, were is the best place to buy. I see prices all over the place and it seams everybody has them. are redline or fajs good, help me out here I just need the carburetor only.
Jay D.
Call Ron at Carcraft he has HPMX complete set for $399.00

Sat Jun 23, 2018 8:32 pm

Dan sent you a pm
Jay D.

Sat Jun 23, 2018 10:43 pm

Found this photo on the Samba it shows Weber IDF 40mm on a 356 Engine and the stock throttle linkages are being used.

Sun Jun 24, 2018 5:00 am

laker wrote: badsix wrote: I'm wanting to buy 2 weber 40 idf carbs, were is the best place to buy. I see prices all over the place and it seams everybody has them. are redline or fajs good, help me out here I just need the carburetor only.
Jay D.
Call Ron at Carcraft he has HPMX complete set for $399.00

Just keep in mind they won’t clear the stock fan shroud..

Sun Jun 24, 2018 11:30 am

I am wondering if the DRLA 40's will clear? I don't have any Porsche Manifolds to try but have some DRLA 36's you could try if you have the Manifolds. Plenty of room in my Bus and in the Photo below.

Sun Jun 24, 2018 12:23 pm

Danwvw wrote: I am wondering if the DRLA 40's will clear? I don't have any Porsche Manifolds to try but have some DRLA 36's you could try if you have the Manifolds.
DRLA 40's and 36' measure the same. 4"(100mm) from the base to the top of the carb without the air cleaner bases installed.

I run 36's on my 67 with CB offset manifolds. They clear the (dog house) shroud and decklid nicely.
I like the DLRA's because you can get to the idle jets without having to remove the carbs. Like you do with Weber IDF carbs.

Hope this was helpful.

Sun Jun 24, 2018 1:12 pm

Yeah, the DRLA does clear the DogHouse VW shroud unless it's got chokes. Was I wondering about the 356 SC Fan Shroud? Didn't know the Weber's Idle Jets were on the inside though! They should be reachable, IDF Photo below shows #4, that it on the outside right? But Just realized it's a SquareBack engine out of the car!

IDF

Sun Jun 24, 2018 1:26 pm

Sorry. I was not clear on the IDF idle jet location.
They are between the carb and the outside engine compartment. Not the carb and FS.
I have big hands and cannot get the IDF jets out without removing the carbs from the engine. A very time consuming job. Never mind!

How did this discussion progress to 356 FS?

Sun Jun 24, 2018 1:30 pm

Seems to be a 356 SC Engine but OP is asking here, perhaps to get more replies.

Tue Jun 26, 2018 8:33 am

sorry, I should have supplied more information, its a 356 engine. I have located a matching pair of 40 dlra dellortos that i'm going to rebuild, so that's were i'm at. I was unaware about the fitment issue?
thanks Jay D.

Thu Jun 28, 2018 1:50 pm

I would think the 40mm DRLA's should be excellent carburetors for the 356A,B,C/912 motors. Porsche 1957 on, Normal engines had 32-24mm Zeniths and the Super had 32-25mm Zeniths. Not sure what venturi the Solex P40-11 for the 356B Super 90 used. I see ads for 32,34,36mm venturis on http://www.partsklassik.com/c-34-solex-p40ii.aspx I would not go over 32mm on the venturi though with Normal heads, in fact, 30mm would be suited and 28mm might tune better and have more bottom end.
On dirt, my 57A with Zenith 32-24's would peg the tac over 6000 RPM in 1st & 2nd real easy if I was not careful.