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Can anyone tell me if this cam CAS drive can be changed or is it fitted for life ?

Also those late/last 97 R33GTST's , did anything electrically change with the ECU and CAS itself ? Does the on R33 GTS25T PFC work with them as well or model specific change/mod ?

Cheers A .

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What I want to know is can the "peg" or drive in the camshaft itself be changed from late 97 R33 RB25DET type (same as r34 ?) to the earlier type half moon/spline arrangement . I guess if the answer is no then does the late R33 GTS25T CAS (black plastic dome type) plug into and work with say the 96 models loom/ecu er PFC .

LOL cheers A .

This is an interesting question, hence why it is being asked.

There appears to be 4 types of CAS used on R32/33/34’s.

1. All R32 and R33 S1 (half moon drive)

2. R33 S1.5 (half moon drive)

3. R33 S2 (star drive)

4. R34 (star drive)

But don’t R33’s in S1, S1.5 and S2 all use the same Power FC? So the internals of the CAS should be the same. If so, why did Nissan change the CAS from half moon to star drive? Unless the internals of the CAS are different, but the Power FC doesn’t care. Either it just ignores the differences or it compensates for them.

As I said, an interesting question.

:D cheers :)

If so, why did Nissan change the CAS from half moon to star drive?

As I said, an interesting question.

:D cheers :P

I have seen the half moon snapped off.

Maybe it was a simple design change to prevent this?

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