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metahacker Samba Member

Joined: May 26, 2010 Posts: 893 Location: san.diego
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Posted: Tue Sep 19, 2023 8:51 am Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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Wildthings wrote: |
Is the 123 formating capable of using a Throttle Position Switch to give retard on decel and at idle and then instantly give advance once the throttle is opened a whisker? Seems like that would be prefer over vacuum cans and centrifugal weights. |
in practice you can get exactly what you want, but not in the manner described - the tuning is not TPS based.... as james described, it is MAP/vacuum and RPM based with a RPM cut off for when vacuum advance is disabled
it works great and is basically as good as a real modern "EMS" (although you would typically have a giant complicated table of vacuum vs RPM and have to put in every value, on most ECU's ignition tables...
whereas the 123 simplifies a bit by having a fixed RPM table that gets combined with a vacuum table, which is just fine in practice...
in essence they pretend it's working like an old skool distributor).
also of note, CSP offers a special white label version of the 123 distributor that is made with a vintage Bosch distributor replica appearance for the most OG-looking solution.... you can get the base in raw aluminum or black with the cap in either red or black.
https://www.csp-shop.com/shop/system/en/?func=sear...0pacemaker
no spacer needed :)
they are nice inside - not much in there to go wrong, seems like everything is high quality, .. hall sensor/magnets, bearing, IC/RF, MAP, etc.
it also has an 'immobilizer' mode .. e.g. software kill switch .. engine won't run without using the app to unlock again .. and you can put a custom PIN code on it ..
P.S. i personally like my 123 with a resistor-less rotor and a German Porsche 1.5Ω red coil |
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surfbus23 Samba Member
Joined: July 21, 2016 Posts: 394
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Posted: Sat Dec 16, 2023 2:46 pm Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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I’ll add that the 123 is so worth the extra dollars spent. What’s a quality rebuilt distributor cost? $250. Been down that road. Also the Pertronix road. As I run Weber 40s the programmable MAP was the biggest game changer. Couldn’t get vacuum to activate on ported manifold with my stock distributor and with the 123 I get to just run it off a very nice signal from manifold vacuum and tell it not to start at idle.
Seems like a no brainer to me and glad others are talking about it.
I also got hit by the spacer problem only I was in Bolivia. Took my measurements to some local machinist and had him cut me a custom one. |
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airschooled Air-Schooled

Joined: April 04, 2012 Posts: 13524 Location: West Coast, USA
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Posted: Sat Dec 16, 2023 3:06 pm Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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Fantastic place to decide to install new tech! I prefer messing around in my own garage 😊
If you’re fortunate enough to have a Type 1 with adjustable distributor pinion end play, timing scatter is entirely eliminated and you can run a few extra degrees of advance because you KNOW it’s stopping at 32*, not scattering somewhere around 30…
For tunability and high performance applications I think it’s the most important aftermarket part available today, besides H4 headlights and a third brake light. For stock applications it won’t pay for itself over a good Echlin point set, but you bet your donkey I’m going 123 if I convert from carb to FI.
Robbie _________________ One-on-one tech help for your vintage Volkswagen:
www.airschooled.com
https://www.patreon.com/airschooled |
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boxer74 Samba Member

Joined: July 03, 2011 Posts: 862 Location: Ontario, Canada
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aeromech Samba Member

Joined: January 24, 2006 Posts: 17660 Location: San Diego, California
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Posted: Sat Dec 30, 2023 6:45 pm Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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The OP shipped me his bus from SFO to SAN last week. He has a pair of Weber 40idf’s on order from Blackline racing in Idaho. My question is after I install the new carbs ($1600 complete kit) will I be able to port suitable vacuum to his 123 ignition distributor? I have zero experience with this new fangled dizzy. _________________ Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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boxer74 Samba Member

Joined: July 03, 2011 Posts: 862 Location: Ontario, Canada
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Posted: Sat Dec 30, 2023 6:48 pm Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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aeromech wrote: |
The OP shipped me his bus from SFO to SAN last week. He has a pair of Weber 40idf’s on order from Blackline racing in Idaho. My question is after I install the new carbs ($1600 complete kit) will I be able to port suitable vacuum to his 123 ignition distributor? I have zero experience with this new fangled dizzy. |
Yes, remove one of the vac plugs at base of IDF and use an M4 to 4mm barb fitting. You can tee two barrels together and then run to the distributor. It works just fine with manifold vacuum. You limit the vac advance in software to only work above a set rpm. _________________ 74 Super
84 Westy |
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aeromech Samba Member

Joined: January 24, 2006 Posts: 17660 Location: San Diego, California
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Posted: Sat Dec 30, 2023 7:24 pm Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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Thanks for the tip _________________ Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound |
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metahacker Samba Member

Joined: May 26, 2010 Posts: 893 Location: san.diego
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Posted: Thu Jan 04, 2024 10:13 am Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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123 made a new BUS specific version of the 123
they externalized the bluetooth TX/RX module .. so that you have a better signal (in a bus where the engine bay is a mini faraday cage 13ft away)
pretty cool
https://123ignition.com/product/tuneplus-4-r-v-v-ext-blue/
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kubicixfactor Samba Member

Joined: August 31, 2008 Posts: 344 Location: Shropshire, UK
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Posted: Sat Jan 06, 2024 3:34 am Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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Interesting that they've updated it, I've still got my new 123 Bluetooth on the bench to fit - assuming everyone with the standard model has problems with the bluetooth signal getting from the engine bay up to the dash? _________________ 1973 LHD Westy 2.0l Type IV, Twin Solex PDSIT, 123 Ignition Vac Distributor, CB2201 Cam, Vintage Speed exhaust (not that impressed). |
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metahacker Samba Member

Joined: May 26, 2010 Posts: 893 Location: san.diego
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Posted: Sat Jan 06, 2024 10:40 am Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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with the old version, it works fine for programming, that's not really an issue
but, for me, running the "Dashboard" with all the gauges has intermittent connectivity when the trunk full of cargo |
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KernowBear Samba Member
Joined: January 09, 2023 Posts: 3 Location: Cornwall, England
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Posted: Mon May 13, 2024 1:29 am Post subject: Re: Bluetooth (123 ignition) distributor installation questions |
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Great topic and really informative to those that need to set one up as they can be confusing if you are changing from a 009 to a 123.
I’m in the same boat I’m able to control the unit but unable to get the gauges to connect when my phone is mounted on the dash, and was wondering if there are any options, has anyone used a 12v Bluetooth extender that may boost the signal? |
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