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weber Q


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15 replies to this topic

#1 wagonpowaa

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Posted 28 February 2004 - 03:39 PM

Searched the archives, but everything was about which weber was the best. Was wondering what the difference between the DGEV and the DGAV? Someone said it had to do with a water choke or something? something it means in Italian? On the Redline site, it has the DGEV and DGAV in the same diagram window. so whats the deal?

#2 Skip

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Posted 28 February 2004 - 03:58 PM

You are correct EV means electric choke like most EA81 Hitachi's have.
(Can't say about the real early models)

AV means water heated chole, can be made to work with some plumbing changes


#3 GeneralDisorder

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Posted 28 February 2004 - 04:26 PM

Also - either one can be converted to the other pretty cheap.... and I do believe that redline also sells a conversion kit for around $30 to make either one a manual choke.....

GD

#4 bigjim5551212

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Posted 28 February 2004 - 07:46 PM

There is the DGV as well, that has manual choke. Remember one thing, you will never see a carburetor say, 32/36 DGEV. They all started life as 32/36 DGAV - A for aqueos, latin, italian whatever. All DGAV's that have an electric choke were converted after they left the factory.

#5 wagonpowaa

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Posted 29 February 2004 - 03:15 AM

so if they were all converted, how can you tell if a DGAV is a DGEV?

#6 bigjim5551212

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Posted 29 February 2004 - 10:29 AM

Thats easy, a real DGAV has a water heated choke, and a converted DGAV has an electric choke.

#7 subarubrat

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Posted 29 February 2004 - 10:50 AM

Personaly I am a bigger fan of the weber IDF 40 or 44 rather than the D series. You will get allot more tuneability and a borader powerband. Cost is not much more than the D and it can be adapted with a simple 1/8 aluminum plate you can make with a dremel. I ran one on my first BRAT, the only problem was I needed a slightly higher idle.

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#8 bigjim5551212

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Posted 29 February 2004 - 03:32 PM

Well there is another carb you guys might be interested in. It is called a 38 DGAS. It looks the same as a DGAV but both barrels open up at the same time and the barrels are 38mm.

#9 Skip

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Posted 29 February 2004 - 03:49 PM

Zoix! Jim that DGAV must have a monster accel pump??

Any thing like size of the pump on a DCOE?

You wouldn't happen to have a used model in the shop would you?


#10 Mike W

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Posted 29 February 2004 - 05:28 PM

On converting water or electric chokes to manual, I've been told that the $10 kit from any auto parts store will work fine. Haven't tried it myself though.

#11 Mike W

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Posted 29 February 2004 - 05:43 PM

Here's a side by side shot. 32/36 DGwhateverV on the left, 38/38 DGAS on the right.

#12 Skip

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Posted 29 February 2004 - 06:06 PM

Mike thanks for the pict.
I was confusing Scotts pict of the IDF
(which looks to have one throttle shaft)
With Big Jim's comment on the DGAS.

Aren't the barrels on your DGAS progressive,
like on a DG*V?
Big Jim says
"both barrels open up at the same time "
this statement and the throttle shaft orientation
is why I confused the two.


#13 bushbasher

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Posted 29 February 2004 - 06:13 PM

I got a ride in an original clearcoated aluminum 289 cobra with 4 weber dcoes boy was that a thrill, and the motor was real eye candy with those velocity stack/trumpets :D

those idf's are used on high performance vws alot I think, one per bank

#14 bigjim5551212

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Posted 01 March 2004 - 01:54 AM

I dont have any of the used DGAS in stock. Got a new one, they are about $125 more than the DGAV. You see them used, once in a while on Jeeps and Toyotas. They have a twin squirter pump jet, and some have a secondary diaphram for the pump that is acuated by vacuum.

#15 bigjim5551212

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Posted 01 March 2004 - 01:55 AM

The throttle shafts have gears joining them together, thats how they have syncronous opening.

#16 Mike W

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Posted 01 March 2004 - 11:19 AM

I should have posted the side view of both carbs, it shows the gear mechanism opening both throttles at once. Pardon the glare off the 38, it was brand spankin new when photographed.




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