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What carb?

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Hi, I've got a '74 Automatic - converted to manual, otherwise standard.

I'm thinking about upgrading the Solex carb - it looks like the obvious choices are the Weber 32/36 DGEV, twin 40 DCOE's, twin 45's...

What is the recommendation? Extra power would be nice, but not critical - i'm more interested in an easy set up and driveability... though nothing beats the look and sound of a pair of twin 45's...

Thanks in advance!

Dave

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32/36 DOES IT ALL

more power

excellent mpg 's when set properly

for 'sounds' you need tubular headers

THEN you can utilize DCOE 's

other modifications =

BMWMOTORSPORTpub1978racemotorspecs1.jpg

HAPPY DREAMS

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I went to a 38/38. Love it, I had a 32/36 before. It was also a nice carb on my motor when it was stock. i upgraded to A 38/38 when I went to higher compression pistons, bigger cam etc

32/36 is really good overall for a stock motor. I think I read about a sync link you can add to really wake it up

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You're going to get a million different opinions, none of which are wrong.

I'd say go dual DCOE40's, not any more power than a well tuned 38/38. But, oh the noise!

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FWIW, I spoke to a Redline rep about a carb for a 73 automatic I was looking into buying, and he recommended a K204-38.

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I recently put a 32/36 on a stock motor that I rebuilt and I must say it starts very easily, good fuel economy, surprisingly responsive I am more than happy . My other 02 have 2 x 45dcoe but they are not the most driveable carb for street use yes the sound great but PITA around town.32/36 good value for money , for the cost buy a new one, no problems.

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My other 02 have 2 x 45dcoe but they are not the most driveable carb for street use yes the sound great but PITA around town.

Think 40's are more ideal for general street use over 45's. Full-disclaimer, currently running 38/38 and very happy with it. It's tuned enough that there was not a large drop in fuel consumption over the 32/36 unless I romp on it.

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My other 02 have 2 x 45dcoe but they are not the most driveable carb for street use yes the sound great but PITA around town.

Think 40's are more ideal for general street use over 45's. Full-disclaimer, currently running 38/38 and very happy with it. It's tuned enough that there was not a large drop in fuel consumption over the 32/36 unless I romp on it.

Andrew, I may need some tips on tuning my 38/38. It seems its always rich...no matter what I do. I do have those DCOE 40s on the shelf that I want to drop in for "the sound".

To the OP. On a stock engine, I vote for a 32/36. 38/38 is too much carb for a stock engine.

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Great feedback guys - I'll probably go for 32/36, seems to be a good all rounder and good price too.

Still itching to put noisy twin45 side draughts on with huge chrome trumpets :-) I also have a Westfield-SEiW with a Toyota 4AGE running twin45's - awesome woooosh of air on hard acceleration!

Dave

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Good choice for a std motor . I have a Westfield SEW with a 4AGE 20v silvertop., Quad throttle bodies give you bit of induction noise as well.

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