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Carburetors conversion for 928 S my.1980

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Old 11-12-2008, 07:46 PM
  #16  
RicerSchnitzzle
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Here's another 928 that went carbs. I'll see if I can find his info for you. I got my first MSD billet distributor off him.

BTW I still have the MSD ignition custom mounts if anyone wants them. Pay shipping. I have the 928MS cross brace now and it won't work on the square shape.
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Old 11-13-2008, 02:06 AM
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belgiumbarry
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Originally Posted by Terra-pistris
Here's another 928 that went carbs. I'll see if I can find his info for you. I got my first MSD billet distributor off him.

BTW I still have the MSD ignition custom mounts if anyone wants them. Pay shipping. I have the 928MS cross brace now and it won't work on the square shape.
hey , great ! that was my following question... will i need such MSD distributor/ignition ?? or can i run the OEM setup ? I have no more "ported" vacuum on the Webers .... only thing i can try is put in advance so i have the "36°" at top end and perhaps use the full engine vacuum on the retard connection to get some advance away at idle .... or are there other options to play with the OEM stuff ?

Is there a MSD set available or must it be custom made/adapted ?

thanks, Norbert
Old 11-13-2008, 08:24 PM
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antoninosavoca
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Thank you very much to: XLOT,BIG MAC,BELGIUM BARRY;JIM BALLEY,LARRY928,DR BOBB,ANDRE HEDRICK,BPGfor information about carbs conversion,yes is true F I is better,but as the car will race in Historic challenge,i need to fit carbs,as Kjetronic cannot give much fuel as carbs(i think).I would ask to Belgium barry if is possible to fit Weber IDA withouth modify the bonnet and if yes how to do it? Thank you very much,best regards Antonino Savoca
Old 11-13-2008, 08:33 PM
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antoninosavoca
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Thank you very much to TERRA-PISTRIS I hope you can find information abouth this conversion thath needs no modify the bonnet,Bye Antonino
Old 11-13-2008, 08:49 PM
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Carl's K-jet distributor can support 450+ RWHP. Are you running more than that?

I have had my distributor slits ported, with larger 3 an fuel lines. Unwired tools makes an electronic WUR that's programable to change control pressure over vacuum and rpms.
Old 11-14-2008, 03:48 PM
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antoninosavoca
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Thank you very much to Terra pistris for important information abouth K jetronic,at this point may be is better to stay with k .j. .Please can you give more information and foto ,if possible ,of kj modification to do or can you tell me who can make this modification ?Thank you very much,best regards, Antonino Savoca Montesilvano Italy
Old 12-07-2008, 02:07 PM
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antoninosavoca
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Thank you very much to RicerSchnitzle for important information abouth K j tronic possible modification,,can you tell me ,please, who can make modification? Thank you very much, best regards, Antonino savoca Italy
Old 12-07-2008, 02:46 PM
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EC928NC
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Hmmm... let's see... I got these Mopar long rams sitting around and a couple Holley 500 cfm carbs..... Hmmmmm

Maybe better fot the Imperial...
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Old 12-07-2008, 03:14 PM
  #24  
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Carl @ 928motorsports.com sells a CIS distributor that is already done and also has individual adjuster for each of the 8 fuel lines. (Mine does not)

As fo the mod, there are several pages on the net about it. I'll see if I bookmarked it. I had my local machine shop do the work on the plunger. Basically only the upper most part of the slits are widened allowing for normal idle and cruise.


Slits on the control plunger are .2mm consistant top to bottom. Opening up only at the very bottom of the slit will give more full at WOT only. (Depending on what you do with control pressure)

The unwired tools WUR provides even more control, as you can get the distibutor to flow more across the whole range, yet change control pressure across vacuum, allowing for proper A/F mix.
Old 12-07-2008, 06:04 PM
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that sensor plate gives me cold sweat...
Old 12-08-2008, 12:05 AM
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Not to hijack the thread but that back hatch conversion to look like rear engine mount is fantastic.
Love that look.
Old 12-08-2008, 12:18 AM
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Nicole
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Originally Posted by dr bob
Yeah, the big Webers look cool, pretty amazing for a technology that was obsolete over 40 years ago now.


I often wonder, if we would still drive cars with carburators, had there not been mandates for emissions controls.
Old 12-08-2008, 12:55 AM
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largecar379
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Originally Posted by EC928NC
Hmmm... let's see... I got these Mopar long rams sitting around and a couple Holley 500 cfm carbs..... Hmmmmm

Maybe better fot the Imperial...


HOLY crappo.....I used to have two sets of these!!!


great for low end torque---horrible on the top end.






--Russ
Old 12-08-2008, 09:09 AM
  #29  
Fogey1
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Originally Posted by dr bob
Yeah, the big Webers look cool, pretty amazing for a technology that was obsolete over 40 years ago now.
Originally Posted by Nicole
I often wonder, if we would still drive cars with carburators, had there not been mandates for emissions controls.

I'm sure the big three would still be using carbs because "their customers demanded it" and dissing the euro and asian product with the "extra complexity" of fuel injection. Probably taking about how carbs add a little road-hugging weight. Of course they'd have FI on all their Euro product, but that wouldn't be available in the U.S.

Just think, they could actually have thrown away _even more_ market share.
Old 12-08-2008, 09:54 AM
  #30  
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The Bosch fuel injection system was originally developed by a couple of American companies - Bendix and American Motors...


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