High Speed Retard Question

[Robert Simpson]

Originally Posted by D. Hake 4459

Is there something to be had in lower gears by retarding or advancing? I shift at 6500 and cross the stripe at 7000. I run 43 degrees timing and I think it may be detonating a little at high rpm.

You could experiment. Since you run at 43deg. Make a run at that timing. Then make a big change, 38 deg as a example. Then make a run. Look at your split times for both runs and see if it makes a difference. If you have a better back half at 38 but it runs the front half at 43deg best, then you are onto something. You can try this before investing in something. Just a thought.