Jump to content
  • When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.

Solex carburetor single barrel


ponyboy

Recommended Posts

So I read on this forum that people consider the solex single barrels to be much better than the weber single barrel "replacement" carbs. Is there really a difference in performance? I like the single barrel idea for saving gas and smooth running. I have a weber 34 single now on mine, and it runs ok. Will a solex really be better? I have read statments here that the 34 was a little too small and just doesnt have the power the solex has. I had a weber 32/36 before on my old 1600and it was ok, but Im stuck on this single barrel idea for now with gas prices. Since mine is single barrel already, Im considering a solex instead of the weber on it, as I will rebuild whichever one I go with. Comments appreciated!

Thanx, Pony boy

Lance Jones... my name

1970 BMW 2002 ...my car

www.myspace.com/lancejonesmusic ....my music

Link to comment
Share on other sites

...though I've never driven any other '02. And I've never even seen the single-barrel Weber conversion, so I can't comment on how it compares. a 34mm choke is a lot smaller than the Solex, though, which I think was 40mm on the 2002. Going with the Solex would probably be a little more power, then, but a bit worse fuel economy (though still good). I see about 21 mpg around town and 26-27 mpg (4-speed) or 29+ mpg (5-speed) on the highway.

But as far as I know the original Solex hasn't been messed with on my car, and it's still purring fine.

-Dave

Colorado '71 2002

'17 VW GTI Sport
'10 Honda Odyssey Family & Stuff Hauler

Link to comment
Share on other sites

I bought a Weber 34ICH for a 1971 2002 I had about 20 years ago, bought it from Greenfield Imported Car Parts at the time. The one barrel Solex had basically had it's days so I decided to try the Weber single barrel replacement. To me, it wasn't quite the same as a nice 1 barrel Solex, could have been the jetting as it had some stumbling issues. I hear the Weber 34ICH is more suited to the smaller 1600 motor, even better for VW's of the 60's/early 70's. My 1969 2000 still has the Solex 36-40PDSI and it runs very nice. My 2000 is just driven seasonally and around town and I have no plans on going to a Weber, would get the 2 barrel manifold and go to a new 32/36 if I did. It's good to clean the idle passage of the one barrel Solex occasionally and carry a basic rebuild kit, at least to have a new diaphragm on hand.

Tim

'69 2000

Link to comment
Share on other sites

single bbl Solex ren't more than a coupla mpg apart--especially at highway speeds. The 1 bbl does do about 2-3 mpg better around town. Both engines are high mileage with 4 speeds, so are pretty equal equipmentwise.

Keep in mind your "34" Weber has a mu;ch smaller throat than the 40PDSI Solex, so you should get less performance without much better mileage. Between the two: Solex hands down.

Main plusses for the 1 bbl Solex vs 2 bbl Weber: dirt cheap, easy to find, easy to rebuild/tune.

Basically, ya pays yer $$ and ya takes yer choice...

cheers

mike

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

Link to comment
Share on other sites

What's the performance difference between your '69 and '73 (before the late unpleasantness)? I.e., how much of a gain in performance does the 32/36 make over the 1-bbl Solex? Just curious...

-Dave

Colorado '71 2002

'17 VW GTI Sport
'10 Honda Odyssey Family & Stuff Hauler

Link to comment
Share on other sites

Solex: considerable. The Weber accelerates much better at higher rpms--say above 3000--and also from a standing start. That would be a given considering the throat area of the Weber vs the Solex. More air=more fuel=faster acceleration. And this was true before I fiddled with the second barrel opening procedure, making it somewhat more synchronous than progressive. That made the performance gap between the two carbs even wider.

mike

'69 Nevada sunroof-Wolfgang-bought new
'73 Sahara sunroof-Ludwig-since '78
'91 Brillantrot 318is sunroof-Georg Friederich 
Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette) & Kermit, the Bugeye Sprite

Link to comment
Share on other sites

...not the carb - IT'S HOW IT'S JETTED AND

all the other basic motor adjustments that matter.

If the compression is weak and uneven, if the cam lobes

are worn, if the timing chain is stretched, if the distributor

is firing uneven and the advance /retard are out of spec.....

the carb is last on the list of requirements for power,

speed, and fuel economy. Carbs wear, warp, oxidize,

leak, jets get molested/drilled, and countless other ailments.

Basics first - then adjust/jet the carb.

21-3342251.JPG

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • BMW Neue Klasse - a birth of a Sports Sedan

    BMW Neue Klasse - a birth of a Sports Sedan

    Unveiling of the Neue Klasse Unveiled in 1961, BMW 1500 sedan was a revolutionary concept at the outset of the '60s. No tail fins or chrome fountains. Instead, what you got was understated and elegant, in a modern sense, exciting to drive as nearly any sports car, and yet still comfortable for four.   The elegant little sedan was an instant sensation. In the 1500, BMW not only found the long-term solution to its dire business straits but, more importantly, created an entirely new
    History of the BMW 2002 and the 02 Series

    History of the BMW 2002 and the 02 Series

    In 1966, BMW was practically unknown in the US unless you were a touring motorcycle enthusiast or had seen an Isetta given away on a quiz show.  BMW’s sales in the US that year were just 1253 cars.  Then BMW 1600-2 came to America’s shores, tripling US sales to 4564 the following year, boosted by favorable articles in the Buff Books. Car and Driver called it “the best $2500 sedan anywhere.”  Road & Track’s road test was equally enthusiastic.  Then, BMW took a cue from American manufacturers,
    The BMW 2002 Production Run

    The BMW 2002 Production Run

    BMW 02 series are like the original Volkswagen Beetles in one way (besides both being German classic cars)—throughout their long production, they all essentially look alike—at least to the uninitiated:  small, boxy, rear-wheel drive, two-door sedan.  Aficionados know better.   Not only were there three other body styles—none, unfortunately, exported to the US—but there were some significant visual and mechanical changes over their eleven-year production run.   I’ve extracted t
  • Upcoming Events

  • Supporting Vendors

×
×
  • Create New...