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  1. Carbs for 1.5ti qv

    Tuning & Upgrades
    I have been given a pair of 40mm idf carbs which I believe came off a por ache. I believe I can jet these down and use on my sprint 1.5ti, however what are recommended main and choke jet sizes? Will these carbs fit on standard manifold or do I need an aftermarket item? ( if so does someone have...
  2. Where to get Weber Carbs set correctly?

    The Classic Alfa Romeos
    Good afternoon all I'm afraid I'm a combination of ignorant and frustrated on this Weber Carburetor issue. Having had my 2 new Weber carbs fitted a couple of years ago, it is clear they still aren't quite right. They aren't running smoothly especially at the lower end of the revs. Car is a 1988...
  3. Converting 8V to 16V Carbs - Issue with Carb Adapters

    Alfa 33, Sud & Sprint
    Good Afternoon, I have car adapters for the 1.7 16V engine that is going in my 33 but I realized there are no anchor points for the throttle linkage and there is no Vacuum Port. I need the Vacuum Port to connect to the Power brakes. Any help would be much appreciated. Regards. Keith
  4. Alfa 33 EFI Engine to Carbs

    Alfa 33, Sud & Sprint
    Good Morning, There are lot of threads about EFI to Carbs and even backwards but there is no answer for what goes instead of the Injection Inlet Manifold. I have a 1.3 Series 3 and want to get a 1.7 engine. Now I can get a Hydraulic tappet Engine which was with Carburetors and just swap or...
  5. Weber 40 carbs - explanation please

    The Classic Alfa Romeos
    Morning All Now I've got my 2.0L 1988 spider to start, I'm going to put an end to shelling out money on the crappy old Solexs. Apparently the Weber 40s are the carbs to have. I have also been told that: - 138 & 139 are the correct ones - and that 200 are the correct ones Questions: what are...
  6. New carbs for Xmas!

    The Classic Alfa Romeos
    Hi everyone, so I got a nice pair of used Weber 40's for my 2000cc Nord for Christmas, yippee! I've installed them started her up all good however on of the pair dips fuel at the trumpet end, does anyone know how to stop this? Apart from that they seem to run fine. Thanks in advance ;>)
  7. 16V Carbs conversion

    Alfa 33, Sud & Sprint
    Hi, guys! I from Russia my name is Andrey, I have the AR 33 16 V (crabs conversion) Hi, guys! I from Russia my name is Andrey, I have the AR 33 16 V (crabs conversion and C&B Road medium) project It is very heavy to make it at us in Russia! Now...
  8. Converting 75 1.6 ie to carbs

    Alfa 75, RZ, SZ
    Hi, i'm in the process of buying a 75 Trofeo 1.6 ie but want that carburetor experience and sound. What do i need? Best regards
  9. Knocking noise through twin carbs

    Alfa 33, Sud & Sprint
    Hi all, I recently replaced the airbox with foam 'sock' filters on my 1.7 sprint. I've left the 90 degree intakes so it's literally just the airbox and filter that's changed. With this set up there is now a knocking noise when accelerating under load, mainly between 2-3000 revs. It seems to go...
  10. IE conversion to carbs

    Alfa 33, Sud & Sprint
    Hi there, I have a 1.7 8v IE block which I want to convert to carbs. Can anyone tell me what's involved in this? I already have the twin carb manifolds, and while all the holes line up, the head seems to have an extra "ear" on the top of the cylinder, which I think is to accomodate the...
  11. Home made manometer for balancing carbs

    The Classic Alfa Romeos
    I mentioned in another thread that I had made a simple manometer that worked really well in balancing the dellortos on my S2 spider. I came across it today while having a sort out so took a picture in case it would be useful to anybody wanting to make a similar one. Parts list: plank of wood...
  12. Rebuilt the carbs but now it won't start?????

    The Classic Alfa Romeos
    Or rather now it won't start again! I cleaned and rebuilt the carbs put them back on and after a bit of persuasion she started, idle was fine but when I set off for a test drive it would die on acceleration ( too much air?). Anyway I didn't have time to fettle so had to leave it, got it back...
  13. The secret world of carbs

    Alfa 33, Sud & Sprint
    Morning Was trying to educate myself on air boxes and trumpets (and thanks to Big Al and all for the thread on this) and found this explination of carbs in an article on motorbikes on the 'net. Quite frankly it is the clearest explination of carbs operation I have ever read. I am taking some...
  14. What would it take to - S4 injection to carbs

    The Classic Alfa Romeos
    Theoretical question. What would it take aside from carbs & an intake manifold? Ta,

    Alfa 33, Sud & Sprint
    Hi there just bought a 94 33 1.5 ie, which I intend to use as a donor car to get my sud back on the track. I intend to use the engine which still sounds healthy, but would like to convert to carbs. I have a broken 1500 carb engine. Is this job difficult to do ? Since I've got an old carb...
  16. very cheap webber carbs - 36

    Alfa 33, Sud & Sprint
    anyone after a pair of webers just seen this: taken off an alfasud
  17. o/s carbs flooding out does the fuel tank need venting?

    Alfa 33, Sud & Sprint
    Fitted an electric pump to the sud and engine starts and runs ok but needs carbs balancing etc. If i leave it to tick over, after about 30 seconds the o/s carbs seem to flood with petrol and the engine stops. Take the plugs out on that side and find both wet with fuel and not firing. Ive fitted...
  18. Vacuum Advance on Weber carbs...?

    The Classic Alfa Romeos
    Hi all, I'm swapping the Solex carbs out for a set of webers, from a similar aged alfa. Everything is good except that I can't work out where the vacuum advance pipe from the dizzy should go. Any advice please? There are cream/yellow coloured caps on the RHS of both carbs and I wondered if...
  19. Throttle Bodies vs Carbs

    Alfa 33, Sud & Sprint
    Hi Gents, I,am sure this as been discussed before, but thought i,d start a thread, as i,am currently interested in the expieriances and opinions of others in relation to ignition, fueling, mappable ecus and carbs vs throttle bodies, on a modified 33, 16v engine, 1830cc, circular 200bhp, I...
  20. 40's Dellhorto Carbs unbalanced & unresponsive

    South Africa
    Hi Guys Im having issues setting up and balancing my twin dellhoto carbs, I have taken them off and cleaned them individually as well as gone through the workshop manual on how to set these carbies up, however I just cant get them to respond well, they continuously spit, there is excessive fuel...