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Ignition methods on turbos!

Started by _danswheelie_ , May 11 2007 05:48 PM

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11 replies to this topic

#1 _danswheelie_

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Posted 11 May 2007 - 05:48 PM

Gday,
Just wondering how other people have set there ignition timing/retard on there turbo setups. I have mine set up with standard initial on normal points type with the vacuum line going between the turbo and the head(intake manifold). This way i get full vacuum advance on over-run/cruise :ZZZ:

and when boost comes up

I loose vacuum advance(retards). Centrifugal adv is set normaly. Dont know if this is the optimum setup but seems to work well.

How does everyone else do theres?

Cheers!

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#2 FastEHHolden

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Posted 11 May 2007 - 06:40 PM

There was a Lucas? electronic ignition controller on the market about 10 yrs ago that I liked the look of..but from memory it was $1500...it was dash adjustable (not that you need that) but it ran 2 maps..in boost and no boost.

I think I will see how a "dumb" system works before I get a "smart" one.

I saw a pic recently (Dave720??) that had an enlarged module where the vac advance went..it vacuum advanced and boost retarded.

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#3 _dave720gtr_

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Posted 11 May 2007 - 07:29 PM

mine set up is simple . but cost $$ its a MSD/BTM boost timing master,... its got a control box to adjust the amount of timing in relation to boost !
it bleeds timing off as boost risers ,,the msd has boost pressure censor built into it
with manifold presrure hose running to it ,also runs dual stage rev limiter
all running of a re,graphed vk dizzy advance locked at around 28 deg advance!

Edited by dave720gtr, 11 May 2007 - 07:32 PM.

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#4 FastEHHolden

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Posted 11 May 2007 - 08:30 PM

It was a Jacobs ignition controller..not lucas. :tease:

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#5 _LX_SS_

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Posted 12 May 2007 - 10:29 AM

aftermarket efi computer, using dizzy as a cas and the ecu to lower the timing on boost.

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#6 Heath

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Posted 12 May 2007 - 10:57 AM

It was a Jacobs ignition controller..not lucas.

I was gonna ask about that. I never knew Lucas made anything good.

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#7 Struggler

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Posted 12 May 2007 - 08:10 PM

Danswheelie, are you sure you have a vac pod that also retards ? These are relatively rare, I have only found them at Scorcher and they cost heaps. Unfortunately they fail easily too with any reasonable boost. I gave up on them and just run a locked dizzy. Seems to work fine.

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#8 _danswheelie_

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Posted 12 May 2007 - 09:18 PM

Gday Struggler.
When I say it retards. It only backs the advance back to no Vacuum advance not actually back from 0 vac. A comptuer set-up is the obvious way to go. Im currently looking at graphting an injection system from a VL I have acces to. Ill keep all you guys posted. Thanks for all the ideas lads - keep em coming!

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#9 _coupe202_

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Posted 13 May 2007 - 03:30 AM

speak to michael from ice ignitions in melbourne he set my old ignition system when i was running a carby on my turbo setup. ingnition system that ice setup worked very well.

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#10 FastEHHolden

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Posted 13 May 2007 - 08:52 AM

Could you pick a worse system than a VL/RB nissan system?

You should buy shares in ACA..maybe you will get Crank Angle Sensors cheaper.

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#11 _dave720gtr_

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Posted 13 May 2007 - 09:23 PM

i had a talk to martie with the big hole in block turbo 202 his was injected with wolf 3d
mangement , and was running MSD6a hooked up through a hall effetcs EB ford 6 dizzy with the vk dizzy bottem welded to it.. he just maped his own ignition curve
on the lap top ! this is what lead to the demise of the engine !as when the big turbo when on he thourght the old ignition map would do :fool:

and only tunned for fuel . lol

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#12 _danswheelie_

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Posted 13 May 2007 - 11:27 PM

Thanks for all the ideas lads!
Dave720 - Sounds like Martie had the right idea though. Do it yourself, make mistakes and learn. Im sure the next one will be top notch! Shame it was such an extreme lesson!

Cheers!