Tuning timing [Archive] - The Toyota Supra Forums

: Tuning timing


SPDu4ea
09-28-2005, 12:16 AM
I know timing is going to be something fairly specific to each car, but what is the rough range you can expect to see during cruise (~2500rpm ~ -5psi)? WOT @ 5000rpm? Idle?

mk3ukr
10-14-2005, 02:47 PM
cruise 2500rpm -35kPa (absolute pressure) - about 33deg timing
WOT 15psi boost(200kPa absolute pressure), 5000rpm - about 27deg timing
idle 800rpm - 30kPa absolute pressure - 10deg timing
generally timing goes up with rpm and goes down when load increases
HTH
Vladimir, 89T