whats with the hostility

WTF Hostility? how can I be hostile when I am sitting here laughing so much because I am puzzled

look mate i dont get it either. your runnin two sets of leads? and rev range from 500-8000 whats with that, what is it a datto with a cvt transmission...

it is quite simple actaully, it just has two sparks per cilinder, similar to the ca20 ignition but with less and more sophisticted parts

I have a mate with a turboed A14 in a ute and it is scary fast, when it comes on boost it feels like your in the space shuttle, one second of that was more than enough for me.

Got any pictures of the twin spark head?

so you have 2 sets of leads? does this mean twin spark? do you have one of thoser oh so close to fitting multi valve heads for it do you? theres no need to be sneaky here about what your run, we all just want faster dattos. what V8 rotor cap will fit onto a A12 dizzy?

I had a feeling he was playing with a twin spark setup.
Ive read about the same mods done to Alfas running the later ignition system to emulate the later 2v twin sparks performance engines. By using 2 sparkys it helped alfa to find another 5-7 per cent more power and avoid re tooling and casting a new 16v head for the mean time and achieve better emission reduction as Nissan did with Napz.
I cant remember where I read it but Alfa has never made a production 16v instead they are now using fiat engines and GM v6 blocks with their own induction, heads and the rest but who cares about Alfa!
The Naps Z dizzy should be made to work on an A series with some thinking and an Alfa workshop or reputable head shop should be able to machine and weld the extra spark threads.
The new Hemi also has the twin setup as alfa had but the A series with the wedge chamber and twin sparkies is definately different.
I went to ex b10 race mechanic Gordon Dobey a few weeks ago and discovered a little secret from his ex nissan race days.
He made custom piston pop out over deck height and used open chamber heads with huge inlet valves and huge exhaust valves that didnt fit the piston area so he had to severe notch the block and massive valve recesses on the pistons. I guess that he was drunk or something to show me this but he said that this ruined less head gaskets and increased reliability. Also saw a beautiful b10 race classic race car he was doing for a customer with this head setup on a 130hp 10000rpm NA a10. He also used this setup with L series engines he used to race in open wheeler hillclimbers.
So now I know how they fit those huge valves in an A series and if it can be combined with twin spakies we could see the A series reach new levels of performance

Hey datsun b120 can you shed a bit if light on what your doing & how your doing it. Like Phunk. I am also sitting here scratching my head trying to figure this out.

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Sounds like a few kangaroos loose in the top paddock.

Best of luck.

any v8 cap shud be able to adapt to the dizzy.

basically, the way it works is that it sequentally fires twice. the secondary spark enables unburt gasses to ignite, accelerates the buring of the fuel mixture and it keeps the motor from stalling at low rpms

just found out today that i have srewed up my turbo setup and i have to start all over again, but at least is for the beter. but the guy that i showed what i was doing sez if i go about it a different way i shud be able to run up to 30 psi with forged pistons and run at least 12, 13s on the strip. he was originally going to do my heads but now hes goin to sort out my turbo