Using 4ze1 dizzy for crank angle sensor Q's

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goldgem
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Using 4ze1 dizzy for crank angle sensor Q's

Post by goldgem »

I'm going to use a 4ZE1 dizzy in my piazza engine for a crank angle sensor to run a sequential injection and coil setup.
I had a look at the shutter wheel in the dizzy and it has 360 small holes and 4 larger slots for each cylinder tdc. The ecu will need a no#1 cylinder TDC referance. Therefore 1 larger slot will be needed. What have others done here?. Cut one of the slots bigger?. Fitted a different shutter wheel from another Dizzy, sr20 etc?.
Cheers.
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Burntrubber
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Post by Burntrubber »

I use one in my c1 with megasquirt I painted all but 1 of the 360 slots and run it as a 4-1 cas it works well.
goldgem
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Post by goldgem »

That sounds like a fairly good idea. I thought I might make one of the 4 slots longer than the others. Apparently most aftermarket ECU's don't like using the 360 slots so your idea might be better.
What type of paint did you use?. I presume you just used the paint to fill the holes in?.
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Post by Burntrubber »

Just black vht engine enamel should have used maybe a epoxy type paint but was all I had and I was keen to see if it would work and it does it's been like that for three years. The firing order is 1342 so you leave one slot between 1-2 and set your ecu up to recognize that type of tach signal.
ROTAHAVIK GEM
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Post by ROTAHAVIK GEM »

i cut and shut my piazza dizzy and fitted an sr20 CAS.... but this was before i knew i could use the 4ze1 SIGH....
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goldgem
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Post by goldgem »

I have a couple of piazza dizzies laying around. I was looking at changing the internals to a 2.6 magna as I also have one of those laying around. It's just easier and nearter to use the 4ze1 unit.
Thanks for all the help.
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redzone (coxy)
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Post by redzone (coxy) »

i'm looking at making a small diameter billet cas for the 4Z in my car so i can move the engine back to normal gem mounts
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moley
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Post by moley »

I machined a magna one for my g200 Was a piece of piss just machined the original shaft and roll pinned it to the magna dizzy. I'm not sure about z's though
MattyA
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by MattyA »

Could some one please help me out with the easiest way to use the 4ze1 dizzy sensor to trigger my aftermarket ecu. I'm wiring up a megasquirt but I don't believe it will read it. I thought about making it into a 36-1 trigger but the slots are so small it wouldn't be easy and might cause me tuning difficulties if it's not exact.
Many thanks. If I come up with something in the mean time il post it up.
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by DR_GEM »

I wish i had something cool and witty in my signature
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redzone (coxy)
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by redzone (coxy) »

Megasquirt? You're keen.
GARAGE REDZONE sunshine coast ph 07 54433507

1975 TX coupe 4ZD1 efi turbo 10.787 @ 123/128
1977 TC Fashion Pack sedan draw through turbo
1984 TG PF60E dohc Group A racecar
1984 TG Panelvan
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archangel62
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by archangel62 »

Yeah I reckon I could have got a diploma in the time I spent researching, building and wiring my Megasquirt. I'm happy with the end result though, although I may need to reroute a couple of wires to get a more accurate signal.
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Burntrubber
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by Burntrubber »

I ended up getting a 12-1 trigger disk from diyauto tune. I had Lo-resolution signal issues while cranking with the factory 4ze1 trigger disk.
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by archangel62 »

Interesting, mine is pretty hard starting and I think may be experiencing poor CAS input also. I'm only using the four pulse per dizzy rotation output currently. Is that what you were using too? Was it hard to fit the 12-1 trigger disk to the E1 dizzy and did it solve your issue?

Very interested! Cheers,
Eli
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Burntrubber
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Re: Using 4ze1 dizzy for crank angle sensor Q's

Post by Burntrubber »

Yes it helped only get the odd cranking issue now caused from voltage drop.
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