artemyk

I have a 1987 1st gen 4runner, 22re. I live in New Mexico at around 7000ft altitude. Timing-wise, right now I have it set to 5* (the standard), and its running smooth but sluggish. (I have run it previously with the timing at 8... it seemed to have a bit more power but also a bit rougher -- but that was also with different plugs , so its hard for to compare exactly)

I'm trying to get more power out. I have read various opinions regarding whether to advance the timing or not. Some say to advance, others that the ECU will adjust for oxygen so advancing shouldn't ever be necessary. Does anyone here have any suggestions? Also, is there a method to determining the optimal timing for power that doesn't involve setting timing, driving around, setting timing, driving around, etc.?

BTW I use 87 octane gas. Also, I do jump E1 and T when setting the timing.

Paul22RE

I've always heard advancing as far as you can until it pings, then turn it back slightly.

84sr5yoty

The old rule of thumb is to advance the timing 1 degree beyond stock specs for each 1000 feet above sea level. Try advancing the timing 5 additional degrees over stock and test drive for a while. If everything checks out ok without pinging issues, advance it another 2 degrees.