Setting up DLI on 20V

[Bazooka]

Has anyone had any experience in converting the 20V engine to coil pack ignition? Im sure someone has done it before but I cant seem to find any information about it. Was simply thinking of modifying the standard dizzy to accept the 4AGZE pickup but there may be something else that works just as well if not better.

Cheers

[JP]

Are you wanting to retain the stock 20V ecu?

If not, you can use 1NZ coilpacks and use the original 20V distributor internals for your aftermarket ECU. Then you just remove the rotor and make a short cap for the 20V distributor.

[Bazooka]

Thanks JP. I will not be using the stock 20V ECU but setting up a Magasquirt on it so almost anything will do. Is there an advantage to using the 1NZ coil packs over the 4AGZE as I already have the ZE ones?

[JP]

not really, the 1NZ are nice and neat with their built in ignitors. Basically the same as 1ZZ/2ZZ coils but the mounting lug is in a slightly different position.

[Sam_Q]

sorry for the dumb question but whats a 1NZ?

[JP]

echo motor

1zzfe corolla coilpack on left, 1nzfe echo coilpack on right:
http://users.tpg.com.au/adsl0uxv/coils.jpg

[Bazooka]

I found this while searching.

http://www.cardomain.com/ride/2131056

Anyone know anything about this setup using the Mitsubishi sensor?

[Bazooka]

Well I found him (bazda) over on the Twincam.org forum. He states that he used the Mitsubishi CAS as his ECU needed an optical pickup and wouldnt work with the reluctance type 20V unit. Otherwise he would have just gutted the original unit.
I found that so far either the 4G63 or 4G67 CAS will fit in the 20V head but are too short so dont reach the back of the cam. The 4G93 one I found does not fit at all. If going this way something will need to be done to extend the shaft into the back of the cam.

[Sam_Q]

I plan to machine the front part of my cam pulley down to take a toothed wheel with a magnetic sensor hanging off the side, doesnt get more simple than that.

[DX20VT]

I plan to machine the front part of my cam pulley down to take a toothed wheel with a magnetic sensor hanging off the side, doesnt get more simple than that.

Yes it does.


The stock 20V dist put out the exact same signal as a 4AGZE or late 4AGE dist.
In fact almost all toyota dist's put out the same signal, SW20, ST185 ST205, 4AGE GZE and 20V.

All exactly the same electrical signal produced. 24T signal and 2 single pulses, and all at the same frequency and voltage.

On most 20V setup's there is heaps of room for the dist itself it's just the rotor and cap that give the issues, and you dont need them with DLI.

[Bazooka]

Well apparently the Megasquirt I plan to use will benefit from me using an optical pickup over the reluctance type so this is the way I will go. I also found an old dizzy from a 2ETE that fits the 20V head so I might look at removing the internals from this and fitting the 4G67 optical sensor within. Not sure how I will achieve this yet. The 4G63 I found was also a hall effect pickup and not optical so this throws another spanner in the works.

[DX20VT]

Hall effect and optical should have the same output voltage's,

just the reluctor type that are a non digital signal.

[Sam_Q]

when I meant simple I meant simple as in lack of parts, not simplest to setup

[Bazooka]

not really, the 1NZ are nice and neat with their built in ignitors. Basically the same as 1ZZ/2ZZ coils but the mounting lug is in a slightly different position.

Neither the 1NZ or 1AZ coil packs fit down the spark plug tubes of the 20V. They are extremely close and I suppose if you were keen enough to take some meat out of the coil packs you could get them to fit. I'm not too sure on length though as i wasn't able to get one in to check.

[Grega]

1ggze coils fit in 16v heads.........perhaps they will fit in 20v as well? just a thought. years ago friends setup their 4AGE in a racecar using aftermarket ECU.....still got the coils here somewhere too.