1jz ignition map help

kilo_gulf

New Member
Feb 5, 2010
12
0
0
Nassau
almost finished my 1jz/r33 project and need some help with my ignition map, I've looked at a couple of threads to see what type ignition timing people are using on their motors and constructed tne following map. any advice would be appreciated.
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the turbo i'll be using is a t3/t67 with a stage 5 turbine wheel (t350) I know the turbine housing is abit on the small side so I purchased a JGS 50mm wastegate. I want to make around 400whp on 15psi with 87 octane (i live in the Bahamas and nobody seems to have a clue what the rating is so i'll plan for 87)
500whp with 20psi and methanol injection
 

tissimo

Stock is boring :(
Apr 5, 2005
4,238
0
0
39
Melbourne, FL
Timing should increase after peak torque (around 4500-5000 on stock cams)..

and for 15 psi on 87 octane, I would start out with 14 degrees around peak and end up around 16 @ 7500 or so.. that should be pretty conservative to start with.

Thatll get you started and then go to a dyno and tune it out.