Stu
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Apr 26, 2007 19:54:22 GMT
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Hi All, You might remember a while ago I posted a thread after some advice on what carbs could be used to pep up my Dad's Bay Window VW camper, standard 1600cc engine. He's after a bit more power on steep hills but without punishing economy when cruising. Anyway - we have a couple of options now as he's picked up a few carbs, not sure any are going to be right though hence this post!  1. A single Weber 40 DCNF - this is on a special manifold to fit the aircooled engine and looks good. However, we asked a local VW specialist and he said this isn't a 'progressive' one (we thought it was) as both chambers, each 40mm, open at the same time. Apparently this is more of a performance carb but would knacker economy whereas I think the one we wanted was a Weber progressive? So - if this isn't the one, what's it worth to sell and get the right one? Any ideas? 2. A pair of matching Kadrons, again I think these are 40's with the correct manifolds and linkages. What effect would these have on power and economy and if they're no use, what are they worth? Also - are these types of carbs overkill on a standard 1600cc engine? We think one of the spare engines I've found whilst clearing up the back yard on the ebay tat marathon is a re-con 1641 or possibly bigger... would that help matters without battering economy?  Any other suggestions? I can't seem to find the other thread, will keep trying to search for it!  Cheers Stu |
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Last Edit: Apr 26, 2007 19:57:12 GMT by Stu
'89 BMW E30 325i Sport, '04 MINI Cooper S, '09 Volvo V70 D5
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Apr 26, 2007 21:48:18 GMT
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kadrons are notorious for being juicy as hell, if you want better economy and power go for some 34 icts, i got em on my 1600 and they're the ticket. single weber 40 is a pig to setup, progressive aint bad but for a bit more you can get some 34s. get a good linkage though. the bellcrank from csp is the tatties, love it, my old crossbar was pretty bad for going out of tune quickly.
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Stu
Posted a lot
Posts: 2,913
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Thanks for the reply - I think my Dad may well have some 34 ict's in his spares as I seem to think they came standard fit on some Bedfords? Might be wrong.
Any idea what a set of Kadrons would be worth to sell?
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'89 BMW E30 325i Sport, '04 MINI Cooper S, '09 Volvo V70 D5
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yep, you're dead right, weber 34icts were standard fit on bedford cfs in 1983 and also 75-79 on the 2.3 engines.
i've seen sets of kadrons going for £150-£220 with all the linkage and manifolds and filters etc.. i got my 34 icts for £150 with everything ready to go. Depends on the condition of the carbs / what linkage you get etc.. like everything you can get curse word or good, my carbs needed a strip down and clean up, they run ok but not perfect, i got a couple of service kits to whack on when i can.
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if it were me i'd go for a pair of 36 DRLA's or IDF's. Especially if its a 1600 on a bus.
the pair of 34's will likely be the best package out of those mentioned - however problems people find with Kadron/Solex's is often due to them not being set up right
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Last Edit: Apr 27, 2007 7:40:40 GMT by Keefy
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was gunna suggest some idfs or drlas but they aint cheap for a good set, and wont offer much more power on a stock 1600 over the 34s tbh. could always sling on some ratio rockers if you want a bit more pep and you don't have to remove the heads or anything, easy bolt on powerzzz. i dare say 34s with ratio rockers would cack from a great height onto idfs.
then again we could get silly and say cam it, stroke it etc.... but the guy wanted economy, something I'm sure idfs arent renowned for. lolz
ps, sell me the engine you found, i got a hankering for a build now..... gnarr, gnarrr..
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Apr 27, 2007 10:56:59 GMT
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Single Weber isn't hard to set up at all. No balancing, you just have to jet it.
I had a single 40 on my crossflow for ages, a great compromise and I just jetted it for a same sized MG B-Series engine. Economy was quite good I thought.
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Stu
Posted a lot
Posts: 2,913
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Apr 27, 2007 22:19:23 GMT
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Cheers all Ryan - will a couple of ict's from a Bedford do the trick then or are they 'handed', ie. I'd need a matching pair rather than two the same from an old CF? Would the correct linkages account for this? Jonny - Was the single Weber 40 you had progressive or not like this one we have? I don't want to make the van much less economical if possible. Apparently a guy my Dad knows has offered him a straight swap, the Weber 40 DCNF we have for a progressive type one. Is this a good swap in terms of the value of the things or would the one we have be worth more or less to someone who wants one? |
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'89 BMW E30 325i Sport, '04 MINI Cooper S, '09 Volvo V70 D5
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It was a side-draught 40 DCOE so two big barrels that open at the same time. When people refer to twin 40's it's one of those. You jet it to suit the engine though and on a stock 1600 it wouldn't drink any more than any other carb. They are quite flexible, you could use 30 or 32mm chokes and jet it with those then it'll act like a smaller carb.
However looking at the DCNF it's actually a completely different carb so I can't comment on what chokes or jets it takes.
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I personally wouldn't bother with the DCNF, just because it's getting on a bit and parts can be a mare. The K-duds, ICTs or small IDFs will all give good results on a 1600, as will a progressive. The accelerator cable arrangement on the progs is less than impressive though. SSP sell a kit but it's still not the shizz.
Given a choice I'd go for 36 IDFs any day of the week, but you'll get a different answer from everybody you ask.
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Stu
Posted a lot
Posts: 2,913
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Apr 28, 2007 13:49:25 GMT
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Cheers all, off round to my Dad's in a bit so will have a look at all these carbs he seems to be finding in more detail |
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'89 BMW E30 325i Sport, '04 MINI Cooper S, '09 Volvo V70 D5
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