Weber Carb ID

14500rpm · Post by **14500rpm** » Fri May 25, 2012 3:27 pm

Hello All,

I was going through the shed the other day and found the Weber 44 IDF carbs that were fitted to my MX-5 when I bought it, I hadn't really noticed before but there seems to be two different types (two of each), does anyone know what the differences are or is it just a design update of some sort? I don't believe they were all bought at the same time.

kiwicar · Post by **kiwicar** » Fri May 25, 2012 4:42 pm

I suspect that the top one has a choke/ mixture enrichment and the lower one has had id blanked off, not uncommon to have mixture enrichment on only some cylinders on a multi weber set up.
best regards
Mike

14500rpm · Post by **14500rpm** » Sat May 26, 2012 1:08 pm

Thanks Mike.

A bit of a cheeky question but does anyone have an idea of the rough value of these? I have four of them (two of each type) and a home made manifold that was all fitted to the car when I bought it. At the moment they are just sitting in the shed, I'm not going to use them so I may as well sell them on to someone who will.

Ian Anderson · Post by **Ian Anderson** » Sat May 26, 2012 3:23 pm

Where is your shed and is it alarmed? If not when are you next going out and I'll make them disappear.

I believe in good nick they are about £250 to£350 each on a proper manifold.

New with manifold and all connections about £2500, jetted to your motor cam etc

What sort of manifold doyou have and how much do I need my pocket lightened? What are the jets etc that are fitted?

Ian

kiwicar · Post by **kiwicar** » Sat May 26, 2012 5:05 pm

Hi
Ian is about right for A1 condition or new carbs, fully matched and on a new branded manifold.
I suspect what you have is 2 pairs of alfa sud carbs on a home brew manifold, cleaned and overhauled I would say about £175 to £200 per pair and if as is more like £100 to £150 a pair. As for the manifold, really it is down to the design and workmanship and condition, if it is a one off. Somewhere between £100 to £450 but without pictures it really is a guess.
best regards
Mike

14500rpm · Post by **14500rpm** » Thu May 31, 2012 10:25 pm

Thanks again for your replies gents, here's a pic of the manifold:

It's certainly homebrew and could do with some tidying up but appears decent enough, I don't think its ever going to make a hill of money on the open market though

Mike, I think you are probably about right when you talk about a couple of pairs of Alfa carbs as I seem to remember the previous owner mentioning he bought them over a period of time. I'm not sure how they are jetted TBH as they didn't have any trumpets or filters, so this would need setting up regardless. So I guess £300-350 for the lot would be about right?