7MGTE crank angle sensor into 5mge head

[tom210]

Hey there,

just wondering if the 7mgte crank angle sensor will go into 5mge head?

i understand the heads are different so my questoins are.
is its as simple as bolting it in?
swapping gears?
or shortening the shaft?

or will i have to go another way about setting such a sensor up?

cheers tom

[thechuckster]

can't answer the question directly, but fwiw: later model 5MGE dizzi should have (will go and double-check with the TSRM) a 6 or 24 tooth wheel and VR sensor - ideal for most ECUs


edit: should have a 24-tooth and a 2 tooth wheel. So you could use it run sequential fuel and spark.

[tom210]

oh really? might pay for me to pop the cap off mine and have a look, mines an 85 model i dont know how late late is.

[thechuckster]

early engines have mechanical/vacuum advance (like a 5me), later model's manage the spark timing with the ECU.

But best to pop the lid and have a look inside as I'm reading info off a US site.

edit 2: should look something like this:

(pinched from a Megasquirt thread on celicasupra.com)

the above pic is probably not how i'd go about it (they've used the main wheel only and reduced it to a 6 tooth wheel - smashing off teeth - giving them 1 trigger event per spark event).

Most ECU's can decode a pattern and from that setup, you would:
- leave all the teeth intact (calling it a 12-tooth crank wheel as you'd get 50% rotation for each crank rotation)
- change the 2-tooth wheel to a single tooth (home signal)
- position dizzi to suit
- chop the top off to make it CAS
- build a dual VR circuit (from this guy: http://jbperf.com/ - gives you a nice 5V out from each sensor)
- install coil packs as required.

[tom210]

ok cool, thanks heaps, you've done well

cheers tom

[tom210]

Went and checked and yeah mine has the wheel inside