Jump to content

Should I swap Weber dgv 23/36 carb for a 38/38?

Recommended Posts

I would not do it . I don’t like the dgv carbs. Save your cash for some side draft 40s.

the down draft carbs take longer to jet . They seem cheesy cheep to me .

I ran a 38/38 on my race car for years.  Dual side drafts is better.

The only reason racers run the single is for the class rules . 


Link to post
Share on other sites

When I built my motor I opted for a 38/38.  This is with a 292 cam, mild clean up and port work on the head and intake manifold.

Compared to the old stock motor with a 32/36 it's a world of difference just as a pumped up street car.  Does run richer and a little bumpy idle but throttle response and pull on the freeway is awesome.  Weber tuning is a little black art but not all that difficult with some guidance.  Small adjustments yield big results.

Link to post
Share on other sites
On 11/3/2020 at 4:13 PM, AustrianVespaGuy said:

While this is OK in terms of general guidelines, it's not quite that simple either.  Even a single 45 a low compression stock motor is too much carb and you'll have a devil of a time getting it to run right.  Also with a stock camshaft, I don't think a 32/36 limits the top end breathing much compared to a 38/38. But the fun of the 38er is that you get more throttle sooner with less pedal input, plus it has room to 'grow' with a more aggressive cam later on.  So my advice is 32/36ers for stock engines, and 38/38ers for cars that have additional engine plans in the pipeline.

As I read through this discussion and came to the same conclusion.

around town I would prefer the 32/36, has nothing to do with mpg

  • Like 1
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.