(Updated & Expanded) Table of Weber 32/36 Jet Prescriptions

NOTE:  THE TABLE (BELOW) IN THIS INITIAL POST WAS UPDATED AND EXPANDED IN THE APRIL 3, 2023, POST IN THIS TOPIC THREAD.

For my M10 rebuild project (10 CR, 292 cam, 91 mm bore, header, and maybe a few more thingies) I plan to start with a 32/36 (with Sync Link) just for simplicity, to get it running, and an education probably early next year (see M10 Rebuild Project posts).*  Plan:  get it running with a 32/36 with standard jets, drive it 200-300 miles, record performance in different situations and conditions, and then decide which, if any, jetting changers might be in order.  ...then a 38/38?  ...then dual 40's?   I'd like to try all three.  Fun journey.

In rebuilding a 32/36, I was wondering if any special jetting would benefit this build.  In doing so, I assembled a table of jetting prescriptions used by several 2002'ers.  See Table below.  Feel free to offer comments, corrections, and additional prescriptions.  If you offer additional prescriptions (especially if you have installed a Sync Link), please let me know of any major mods you have made.  I will incorporate your input.  If I try a 38/38, I'll probably prepare a table of jets for that sukka, too.

If you don't need this table or its info or think it is redundant in your world, please feel free to ignore it.

Larry

* I just took another case of beer to my machinist to keep him happy.

NOTE:  THE FOLLOWING TABLE WAS UPDATED AND EXPANDED IN THE APRIL 3, 2023, POST IN THIS TOPIC THREAD.

Hi Larry,

you should mention that you are installing a Sync-Link kit.  That changes *everything*.

Tom

P.S.  it's c.d.eisel.  Not diesel.  

Thanks, Tom.  Done.

Hi Larry,

Thanks for putting this data together.  Would it be possible to have the contributors give their above-sea-level elevation to put in this table?  I just got the Redline high-altitude kit and I'm going to start somewhere between the Weber Baseline and the upper limits on the high-altitude kit.  I'm at 5000 feet altitude in Colorado.

On 12/17/2022 at 10:29 AM, '76mintgrün'02 said:

P.S.  it's c.d.eisel.

Creighton Demerest’s username was actually c.d.iesel

Like the engine but more CD 🙃

marlin,

I gathered these data over a period of weeks as I ventured through this topic (i) on our site and (ii) by reading references.  I did not record the names of the FAQer sources, just the data.  Sorry.  I cannot provide the important info you need.  Bummer, I know.

Larry 

3 minutes ago, visionaut said:

On 12/17/2022 at 9:29 AM, '76mintgrün'02 said:

P.S.  it's c.d.eisel.

Creighton Demerest’s username was actually c.d.iesel

Thanks, Tom.  Sorry, Larry.

I feel dumb.

Tom

1 hour ago, marlin1881 said:

Hi Larry,

 

Thanks for putting this data together.  Would it be possible to have the contributors give their above-sea-level elevation to put in this table?  I just got the Redline high-altitude kit and I'm going to start somewhere between the Weber Baseline and the upper limits on the high-altitude kit.  I'm at 5000 feet altitude in Colorado.

Does that include parts associated with the power valve?

I'm believing the lack of manifold vacuum at your elevation causes the power valve to open premaurely and is oversized, resulting in low fuel mileage.

I ran a carb once upon a time.

Here is an UPDATED and EXPANDED Table of Jet Prescriptions for Weber 32/36 Carbs.  The original table is in the first post of this topic thread.

Larry

Hi JimK,  I've installed a complete Redline carb kit, choke diaphragm, and complete power valve (Pegasus only sells it as an assembly).   The car is still on jack stands and all carb adjustments have been with the wheels spinning.

Somebody in Colorado posted their final results on jetting.  Somewhere.  I'm not finding it again.

I'm getting in brake parts.  Once I know that I can stop this thing, I'll get it off the stands and go for a joy ride around the neighborhood.  I do have the hand brake adjusted, so I'm tempted...  Then, I can provide some real-world experience on carb jetting.

marlin,

Maybe the prescription for which you are searching is in the expanded table above.

Larry

What I was looking for was a change to the spring that forces the rod to open the power valve.  At this altitude any slight throttle at speed, the power valves pushes open.  There isn't the same amount of vacuum to hold it shut until some real load comes on and mileage is poor.

OP: In my experience, float level (and type) is an important piece of data; this setting is critical for a proper/consistent tune. (And fuel pressure, to a lesser extent, on street cars.) -KB