Distributor Options

D

Draco02

Member
Messages
20
Reaction score
0
Was planning on sending a spare distributor from 2800 cs up to Jeff @ Advance Distributors for a rebuild.
Has anyone eliminated the vacuum unit from theirs? Is this a good idea or should I just keep the vacuum part of it? Jeff @ advance said maybe better to remove it completely.

thanks,
Le
 
Dizzy

Mike,
Thanks for the tips. Im just used to 2002 Tii distributors and still learning about these m30 motors. Appreciate the help.
Cheers,
Le
 
I just installed triple Weber DCOM (last Italian made Webers) last weekend which have both ported and manifold vacuum and will post details of them in another thread. So far have tried ported advance with success, trying Mike's manifold VA suggestion this weekend to see if any differences.

HB Chris said:
I think 2800 has advance only, 3.0 has advance and retard. Those using webers seem to eliminate the vacuum all together.
Click to expand...
 
distributor

HB Chris & deQuincey,
I'm running the weber 32/36 set up and from experiencing with 02's we would just eliminate the Vacuum completely.
Is there a distributor # I should look for to reference the advance only? My original thoughts were to have one rebuilt and re curved minus the vacuum portion if I were to send it out fr a rebuild. Didn't want to do anything that is not suggested or hasn't been done by more experienced members. I'm GREEN with this M30 and e9.
Thanks for all the suggestions and help,
Le
 
Vacuum advance (not retard) can be a very good thing. If you have your Weber downdrafts tuned correctly, and if the power valves aren't shot, you should be lean at cruise. A lean mixture burns more slowly, requiring more advance. You'll get the best mileage with a working vacuum advance. I think Weber side draft carbs are an exception, because I don't think they have a provision to lean the mixture based on load (correct me if I'm wrong).

-Scott
 
Yes vacuum advance is good because it responds to engine demand, mechanical is only based on rpm's. So you want both. Advanced for lean mixtures, normal for rich/full charges. DCOE's generally do not have any provision for vacuum (designed really for WOT racing but can be domesticated). I just installed DCOM (last version) which has both manifold and ported vacuum ports, adjustable diaphragm accel pump instead of piston, and idle air bleeds for balancing. Did a test run tonight hooked up to manifold vacuum and it runs great, smooth strong idle and no hesitation off idle. Good for DCOE's so you don't have to crack the butterflies past the first progression hole and enter transition hell. Either way, I wouldn't eliminate vacuum advance, whichever source you choose.

sreams said:
Vacuum advance (not retard) can be a very good thing. If you have your Weber downdrafts tuned correctly, and if the power valves aren't shot, you should be lean at cruise. A lean mixture burns more slowly, requiring more advance. You'll get the best mileage with a working vacuum advance. I think Weber side draft carbs are an exception, because I don't think they have a provision to lean the mixture based on load (correct me if I'm wrong).

-Scott
Click to expand...
 
Distributors

Sounds good. Now that I have this info I will get one rebuilt but to stock specs. Now the question is which distributor should I find as a good core to begin?

Just recently purchased one on eBay

0 231 162 004
JFUD6

Can I use this with my current 3.0 motor and 32/36 set up?

TIA
Cheers,
Le
 
Draco02 said:
Sounds good. Now that I have this info I will get one rebuilt but to stock specs. Now the question is which distributor should I find as a good core to begin?
Just recently purchased one on eBay
0 231 162 004
JFUD6
Can I use this with my current 3.0 motor and 32/36 set up?
TIA
Cheers,
Le
Click to expand...

you can. use it yes, a 004, 008, or 007
the curve though is different, but the car will run

if you are going to rebuild your distribuor, you may find this one useful:

http://www.e9coupe.com/forum/showthread.php?t=7653

http://www.e9coupe.com/forum/showthread.php?t=8254&page=2
 
Last edited:
You must log in or register to reply here.
Back
Top