« on: Jan 07, 2009, 12:13:52 PM »
5 is stock. more advance is more power, less fuel economy, and possibly pinging. I loved running about 12*-15* but I couldn't run it all the time. 8* made more power than stock and was still happy with regular fuel.
I thought that advancing the timing effectively leaned out the fuel mixture and resulted in better fuel economy?
My 4Runner has a mild cam and likes premium fuel even with the timing in the 5-8 degree range.
Logged
1989 4Runner: Dual Ultimate (Inchworm front & Marlin 4.70 rear), Marlin Twin Stick, 1200-lb clutch, 4.88 R&P, Aussie Front, Detroit rear, 30-spline Longs, Long hub gears, ARP hub and knuckle studs & 35x12.50 Cooper STT PRO tires. Marlin rear bumper & sliders. FROR front bumper. SAS with Alcan springs & Rancho 9000XL shocks. Budbuilt Bolt-on traction bar. Custom Interior Cage by Those Guys Rod and Customs.
Moab Tested & Rubicon Approved
