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123 DIZZY


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#1 97fm

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Posted 11 May 2018 - 06:55 PM

Hi, any 123 dizzy gurus out there?

My 6 cp has a fast road cam, sports exhaust with extractor manifold, The Ballast resistor is disconnected???

When the 123 was fitted it worked great for the first 250miles then it started misfiring. Returned same to makers and no fault found but out of courtesy the pcb was changed, 250 miles further down the road the same occurred, I know if they get a spike they shut down as a protective measure for a while. 

Also does anyone have the definitive curve setting.

Any ideas please!!!!

 

cheers

Frank


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#2 JochemsTR

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Posted 11 May 2018 - 07:07 PM

Hi Frank,
it took me a lot of tests to get a good curve setting. Between bad and good curve you have about 8 BHP and easily 10 Nm difference.
Do you have a 123Tune?
My curve settings
500 - 12
1000 - 16
1600 - 21
2000 - 23
2600 - 28
3000 - 30
MAP Advance not required since I am driving with a Kent 270 cam. 10 CR.
I need more engine details.
With 123 Tune no ballast wire is required. My coil has 1.5 Ohm. Do not use ballast resistor! What coil do you have?
Jochem
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Flying Dutchman drives: TR6 - 1973 - 56/11 - CF1xxxxUO - J-OD - Kent 270° - 2x ZS - Phoenix - Pierburg - 123Tune - 205/70 on 7x15


#3 OldBob

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Posted 11 May 2018 - 07:40 PM

Hi, any 123 dizzy gurus out there?

My 6 cp has a fast road cam, sports exhaust with extractor manifold, The Ballast resistor is disconnected???

When the 123 was fitted it worked great for the first 250miles then it started misfiring. Returned same to makers and no fault found but out of courtesy the pcb was changed, 250 miles further down the road the same occurred, I know if they get a spike they shut down as a protective measure for a while. 

Also does anyone have the definitive curve setting.

Any ideas please!!!!

 

cheers

Frank

 

Hi Frank,

 

If its a CP car then it has no ballast resistor is wired into the loom as standard.

 

Ballast resistor wiring was only used on a CR car, so your CP needs a 12v coil identifiable by a 3 Ohm reading across low voltage terminals on the coil,

 

If it reads1.5 Ohm or thereabouts then you may have the wrong coil which will deteriate over time when fed with 12v from your LT ignition.

 

Simple check worth ruling out.

 

regrds

Bob


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#4 97fm

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Posted 11 May 2018 - 07:45 PM

Thanks for your swift reply,

 

My 123 is the bog standard manually set type.

I am running a Kent TH5 fast road cam 280

A New Lucas Gold sports coil 3 Ohm mounted on the inner wing away from the engine, Magnicor H.T. leads using NGK BP 5 ES plugs(unleaded engine) and static timing is set at 11 degrees BTDC.

Compression is 205 across all six cylinders, fuel pump delivers 110psi and the spray pattern is v.good. No air leakage anywhere.

 

Fitting a points distributor 22D6 the car is a dream, if only my 123 would perform likewise.

 

cheers 

Frank


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#5 97fm

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Posted 11 May 2018 - 07:50 PM

 

Hi Frank,

 

If its a CP car then it has no ballast resistor is wired into the loom as standard.

 

Ballast resistor wiring was only used on a CR car, so your CP needs a 12v coil identifiable by a 3 Ohm reading across low voltage terminals on the coil,

 

If it reads1.5 Ohm or thereabouts then you may have the wrong coil which will deteriate over time when fed with 12v from your LT ignition.

 

Simple check worth ruling out.

 

regrds

Bob

Cheers Bob, you found me out, My car is actually a CF converted to CP, in all respects.

 

kind regards

Frank


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#6 JochemsTR

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Posted 12 May 2018 - 11:38 AM

I installed the recommended coil, by 123. Flamethrower with 1,5 Ohm. They recommended me not to install the resistor.

Measure the feed and timing cold and after getting misfire.

 

Jochem


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Flying Dutchman drives: TR6 - 1973 - 56/11 - CF1xxxxUO - J-OD - Kent 270° - 2x ZS - Phoenix - Pierburg - 123Tune - 205/70 on 7x15


#7 stuart

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Posted 12 May 2018 - 01:20 PM

Thanks for your swift reply,

 

My 123 is the bog standard manually set type.

I am running a Kent TH5 fast road cam 280

A New Lucas Gold sports coil 3 Ohm mounted on the inner wing away from the engine, Magnicor H.T. leads using NGK BP 5 ES plugs(unleaded engine) and static timing is set at 11 degrees BTDC.

Compression is 205 across all six cylinders, fuel pump delivers 110psi and the spray pattern is v.good. No air leakage anywhere.

 

Fitting a points distributor 22D6 the car is a dream, if only my 123 would perform likewise.

 

cheers 

Frank

Setting B is good for a 6.

Stuart.


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#8 ShaunC

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Posted 17 May 2018 - 10:37 PM

Hi, any 123 dizzy gurus out there?

My 6 cp has a fast road cam, sports exhaust with extractor manifold, The Ballast resistor is disconnected???

When the 123 was fitted it worked great for the first 250miles then it started misfiring. Returned same to makers and no fault found but out of courtesy the pcb was changed, 250 miles further down the road the same occurred, I know if they get a spike they shut down as a protective measure for a while. 

Also does anyone have the definitive curve setting.

Any ideas please!!!!

 

cheers

Frank

Fault with rota arm, i.e. tracking? 


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#9 JochemsTR

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Posted 18 May 2018 - 06:42 AM

Frank,

any update?

Jochem


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Flying Dutchman drives: TR6 - 1973 - 56/11 - CF1xxxxUO - J-OD - Kent 270° - 2x ZS - Phoenix - Pierburg - 123Tune - 205/70 on 7x15


#10 97fm

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Posted 18 May 2018 - 01:15 PM

Frank,

any update?

Jochem

Hi JochemsTR

Alternator kicking out recommended 14vdc, as 123 has max voltage of 15vdc I am building a voltage regulator to latch a relay if any voltage spikes appear. Once installed it will monitor alternator output and indicate any abnormalities( I hope)


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#11 97fm

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Posted 18 May 2018 - 06:16 PM

Fault with rota arm, i.e. tracking? 

Never thought of that 

cheers


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#12 JochemsTR

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Posted 20 May 2018 - 08:23 AM

Did you check timing and feed cold vs hot engine?

Jochem


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Flying Dutchman drives: TR6 - 1973 - 56/11 - CF1xxxxUO - J-OD - Kent 270° - 2x ZS - Phoenix - Pierburg - 123Tune - 205/70 on 7x15


#13 97fm

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Posted 20 May 2018 - 02:46 PM

Hi Jochem

123 dizzy, no spike detected yet but I have found buried on the 123ignition website a warning to avoid using a Lucas Gold or Sports coil which is what I have. I am now awaiting a new BERU ZS109, this should do the trick. 

frank


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#14 Steves_TR6

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Posted 20 May 2018 - 03:34 PM

Hi Jochem
123 dizzy, no spike detected yet but I have found buried on the 123ignition website a warning to avoid using a Lucas Gold or Sports coil which is what I have. I am now awaiting a new BERU ZS109, this should do the trick. 
frank


I was advised against the ‘gold’ coils which i had previously, and bought the beru coil with the 123tune+

It’s working fine, the car is running great and perhaps a little smother than on the previous optronic setup?

Steve
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I thought TRs were meant to leak outwards!

#15 97fm

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Posted 20 May 2018 - 04:13 PM

Hi Steve

 

Thanks for inspiring confidence.

 

From my research on 123 ignition system so far, I don't think there are too many people around who are truly knowledgeable of the pitfalls associated with this type of system.

Certainly the garages in my area don't like them( or maybe they don't like me?). 

It does beg the question that the Classic Sports Car Garage which originally fitted my 123 dizzy did not recommend a change of coil, maybe that is why they could not get it running on another car and sent it back to the manufacturers?

 

cheers

 

Frank


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#16 JochemsTR

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Posted 20 May 2018 - 04:22 PM

Frank, that was the reason for my comment regarding Flamethrower and 1,5 Ohm!
Jochem
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Flying Dutchman drives: TR6 - 1973 - 56/11 - CF1xxxxUO - J-OD - Kent 270° - 2x ZS - Phoenix - Pierburg - 123Tune - 205/70 on 7x15


#17 97fm

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Posted 20 May 2018 - 04:51 PM

Hi Jochem

 

Got there in the end

 

cheers 

Frank


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#18 Steves_TR6

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Posted 20 May 2018 - 05:17 PM

Hi Frank

When my Beru coil arrived it said on the box ‘for ballast system’ or similar.

So i spoke to the 123 people in holland and they assured me this was still the best coil to use in a non-ballast system

Time will tell!

For any long trips i’ll carry the old distrib with point for emergency fitment !

Steve
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I thought TRs were meant to leak outwards!

#19 97fm

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Posted 20 May 2018 - 06:23 PM

Hi Steve
I take you have a CP without the ballast wired in?
But I can understand your confusion, everything about these seams to be an enigma!
Happy motoring
Frank
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#20 Steves_TR6

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Posted 20 May 2018 - 09:31 PM

My engine is a mongrel..... and no ballast.
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I thought TRs were meant to leak outwards!




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