PowerFC and timing.

[JimX]

Awhile ago my mechanic retarded my timing slightly when tuning the S-AFC. That's done with the little metal thing with the 3 bolts in front of the exhaust cam right? Anyway I don't know what it was before or after, and before I install my PowerFC I want to set it back to what it should be (factory settings? someone advise of a better setting for 98RON fuel if not)

So my questions are - (1) Is the timing set with that metal thing I described above? and (2) What should I set it to? I guess I can also throw in (3) Where are the timing marks and where do I hook up the timing light? I should be able to work it out, but on the off-chance it's confusing then someone please tell me

This being for a '95 R33 GTS-t.

[Duncan]

1) Yep, thats the Crank Angle Sensor, is the bloody thing that was causing a wierd missfire in my car.

No idea on the rest tho

[JimX]

Ta for that, it's a start at least I've gotta go pick up my injectors from the workshop sometime soon, hopefully they'll know what the timing is supposed to be.

[Jay95R33]

Stock timing on a R33 GTS-t is 15 degrees BTDC.

The timing marks are on one of the pulleys on the front of the motor, you should be able to see the plate that has the 0-5-10-15 stuff on it down there somewhere

I'm just guessing, but if your going for a PFC, set the base timing on the CAS at stock (15) and then get your tuner to tune the timing via the PFC.

J

[JimX]

Thanks Jay!

I'm going to get it properly tuned, but I plan on trying some road tuning myself. I've got a map based on a setup similar to mine, so I might try setting it up somewhat more conservatively than that and get my mechanic to fine tune it afterwards.

Oh yeah, does anyone know where to hook up the timing gun? Normally you put it on number 1 spark plug lead, but this car got no leads

[Jay95R33]

Cool - sounds good. The hand controler has got a knock readout, so that should keep you out of trouble

The pickup for the timing light is right at the back of the motor where the ignitor module is (if you've got a series 2 motor it's still up the back there), and you'll find a loop of white wire just hanging around doing nothing.

The look is only just big enough to clip a timing light pick up through.

The wire might be hidden under some electrical tape.

I found that the standard (cheap ) timing lights aren't sensitive enough to work off of this pick up But give it a try, it might work with yours.

Cheers

J

[JimX]

Thanks again Jay, I'll give it a go this weekend.