Ignition Options For Carb'D 4Ages

[cianw94]

Well there guys I have fitted a 4age to my KP60 starlet (not a corolla I know!). I will throw a thread up shortly if I'm welcome? Reasonably standard but CBR 900 bike carbs. I was running a 4k dizzy in it with an adapter I made until my exhaust cam cracked more than likely as a result. I am rebuolding the engine and don't want to chance it again. Looking for a good cheap alternative. I was on to a crowd in England, H and H ignition solutions (I am living in Ireland) but you're still looking at €300-350 for a standard 4 age one converted to electronic with its own advanced curve. I know I can run a locked dizzy and a box like MSD or Jaycar but would like more info. maybe? Or coil packs another alternative but expensive again. Is there anyway you could swap in the igniter unit from the likes of a k-series electronic dizzy into a 4age unit and get away without running an ECU or what until could you swap in? All info greatly appreciated.

 

Pictures of my hardship. Before this I had two 4ks throw the bottom end on me! One tuned standing me close to €3000!

 

[Trev]

If you want advance then buy a 4age dizzy and run it on a hyperpak ignition system or if you don't need advance then run the 4age dizzy and coil onto an ignition module like a BIM024 (bosch ignition module), this way you have the right dizzy for the job.

 

 

3 - Dizzy red wire

7 - Dizzy black wire

15 - Coil positive (+)

16 - Coil negative (-)

[cianw94]

Cheers for that Trev!! With that Bosch BIM024 is my dizzy just perminentally locked at say 35 degrees BTDC? What coil do I use? I already have MSD blaster 2 coil that ran my K series manual points dizzy. Can I map a curve for the hyperpack or is that it then?

[cianw94]

I emailed them about that Hyperpack system there thanks. Are there many people on here running them, any feedback?

[Trev]

Cheers for that Trev!! With that Bosch BIM024 is my dizzy just perminentally locked at say 35 degrees BTDC? What coil do I use? I already have MSD blaster 2 coil that ran my K series manual points dizzy. Can I map a curve for the hyperpack or is that it then?

 

Permanently locked to where you set the timing, blaster 2 will be fine but make sure you run it without a ballast resistor, you cannot recurve it yourself, all you do is adjust your dizzy for the overall timing advance (ie: set dizzy to 15 deg, you will have 35 degrees of advance, set dizzy to 10 and you will have 30). There is a curve sheet that comes with the module, I wish I would have scanned mine.

 

I emailed them about that Hyperpack system there thanks. Are there many people on here running them, any feedback?

 

I myself and a mate of mine had one, never drove mine, mates was a daily driver on gas, no issues.

[cianw94]

Thanks again. Not mad on perminately locked dizzy at all really. I've seen some bad revues on the hyperpack between it not working and very poor post sale and customer service. Any MSD module out there that does the same job?

[cianw94]

Has anyone used a 4ac dizzy? Can they fit in? Or can you swap in the unit around the shaft from the AC dizzy to the AG dizzy? Is there any other dizzy internals you can swap in around the shaft? I have a crowd in the UK, H & H ignition solutions that will do it but at about €300-350. I have seen a lot of bad reports on the Hyperpack unit so I have gone off that idea. I know there are similar MSD units out there but generally more expensive than the H & H dizzy conversion.

[cianw94]

I think but not 100% sure that the 4ac or 3ac dissy casing bolts to the 4age head. The problem is that the 3-4AC dizzy spins anti-clockwise when the 4age one spins clockwise.You change this by swapping the gear over from the 4age dizzy to the AC one but then timing retards rather than advances with RPM. However I reckon the internals of a 4k dizzy will swap over so that the centrifugal weights open the right way so that the timing will again advance rather than retard with RPM. Think I will try give it a go.

[cianw94]

Many people here running the hyperpak ignition computer? I got one today off a friend but his never worked for him, but at the same time didn't try much with it.

[Trev]

Many people here running the hyperpak ignition computer? I got one today off a friend but his never worked for him, but at the same time didn't try much with it.

 

He might have blown it up if it never worked for him.

[ke70dave]

that is some pretty impressive work there, and some very impression destruction!

 

i would be inclined to get a cheap 2nd hand aftermarket ecu, run the factory 4age distributer, get a few coils from somewhere (even use the factory one perhaps?)

 

then get the ignition tuned on a dyno.

 

i know people have success with these little ignition boxes or running fixed advance. but its not ideal, and you arent in complete control of the ignition curve.....and i don't like not being in control...

 

depends how good you are at the electrical/programming side of things.

[dougyboy]

i run a hyperpak on my big port on twin webers,wos ezy to wire in, you need to run a luckas sports coil they go for about $30 and the pack cost me about $260.starts ezy and revs up fine.and my cabys still need a better tune up! no fiddling just hood and play

[Trev]

i run a hyperpak on my big port on twin webers,wos ezy to wire in, you need to run a luckas sports coil they go for about $30 and the pack cost me about $260.starts ezy and revs up fine.and my cabys still need a better tune up! no fiddling just hood and play

 

No you don't need to use a 'lucas' sports coil, the factory 4age coil works perfectly fine.

[corollaart]

Had a hyper pak ,seemed ok until removed the engine to onther car and fu#ked it my fault.

I had a 4ac disy and it would defently fit ,but have change the drive cog.

 

As for internals I'm not sure which way it spun,but why couldnt you turn every think over.(re weights etc)

 

What do you think Trev??

[azza91]

I'm going to use the hyperpak ignition in my build. from what i have read it seems the easiest option