Anyone using the MSD Grid O2 sensor module?
any comments,info or experiences would be appreciated.....

They are just another tuning tool to let you know whats going on. I installed one last year and added a second one for this year. I really like mine compared to the old EGT gauge I used to use. MSD does not tell you where to install them so I had them welded on the top of the collector like some other cars I saw at the track.

My only real complaint is both don't read the same. Left header shows 4.9-5.1 on a run and the right header shows 5.4-5.6. Who knows which one is correct or why they read differently.

I just overlay the runs and make sure they repeat.

If you want to check both exhaust sides less expensively, weld another bung on other side and switch the sensor.

quote:

Originally posted by Tom Reyer:


My only real complaint is both don't read the same. Left header shows 4.9-5.1 on a run and the right header shows 5.4-5.6. Who knows which one is correct or why they read differently.

I just overlay the runs and make sure they repeat.

Each cylinder could be that far apart in their tuneup.

Best bet would be to put a bung in each cylinder and check 2 at a time.