silver44

Has anyone used the GRM RPM pickup for their G2X system? Where did you pick up the rpm signal? I know it goes to the coil but my coil has a plastic covering and before I cut into it I wanted to know my best options here. How do I identify the right wire to clamp onto? Any insight out there?

Thanks,

Don

Vampire

I have RPM on my G2X ('86 911). I did not install it but I thought it went to the tach. It is also hard wired in.

Don't forget to change the setup for 6 cylinders to get accurate readings.

Matt Marks

You can get this by splicing directly into the wire from the DME to the tach - no fiddling needed. If you go to trackvision (www.trackvision.net), member (and president) Tony Kelly has the wiring pinouts as to which wire to splice into. I'm a 944 guy, but I'm pretty sure that the 911 instructions are there as well.

AndyT

they make a clip on harness for the tach signal. no need to splice. it's on the website

Marc Shaw

Tap into pin 6 behind the tach - that is how I got an rpm signal for my TraqMate and shift lights.

Marc

silver44

Thanks Guys

Azikara

I believe it is the black wire with purple stripes.

AndyT

check out this rpm pickup harness i was referring to, no cutting involved

http://www.g2xtreme.com/hardware/sensors.htm

silver44

Andy, that was the one I got...i got it fgured out tonight. I was making it much harder thanit really was...thanks guys for all of your thoughts.

Don

Cory M

so what was the solution? I have a G2X sitting in a box that I plan on installing soon, I bought it used and it came with the same sensor.

silver44

There was a cover over the coil that was much easier to remove that I first thought. Once I had the cover off the wire was easily seen. Now all I have to do is drill a small hole through the rear firewall and back to the + coil wire and I am good to go. I am attaching a picture of the inside of my car where I have the display mounted up by the lower left of my windshield and the G2X box on the knee back on the passenger side.

Don

Cory M

thanks for the info

silver44

Oops...I may have spoken too soon...although I saw what I thought was the right way to hook it up, after speaking with Tim at Racepak today I think I better go back and regroup. The GMR pickup will not work with my single coil setup.

Matt mentioned tapping into the wire from the DME to the tach. I could not find the pinout diagram on trrackvisions website and they directed me to G2X website. I could also tap into the tach but I am not sure how to get to the tachand getting to the DME relay would be much easier for me.

Has anyone done this on a 911? Mine is an 88.

Thanks for the help...

Don