Walle,Walle wrote: ↑October 5th, 2021, 7:24 am my intention was only to add more data, not to correct you
for NA imho, 13.2 is a safe target for street use, for race I would use 12.8 at redline and at 13.2 at 5k (horizontal interpolate in between).
also one can reference to this doc. "Engine Vitals: Lambda" (I don't know how credible it is so don't shoot me)
http://www.rx8help.com/uploads/7/3/4/7/ ... rmazda.pdf
for any map targets is easy to make the tables for. what is dificult for renesis imho is the VE table and maf scaling if intake is modified.Code: Select all
My AFR target looks like this for high load. RPM 500 750 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 Target AFR 13.21 13.21 13.21 13.21 13.21 13.15 13.15 13.15 13.15 13.09 13.09 13.09 13.09 13.03 13.03 13.03 13.03 12.98 12.98
for my engine I needed to increase the VE significantly. the most "flowing" awailable tune was reading 14.5 to 13.5 depending where in rpm range. at 7k it gets really lean.
my VE for high load:Code: Select all
RPM 500 750 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 my VE 1.10 1.10 1.09 1.00 1.05 1.02 0.93 0.95 1.23 1.09 1.03 1.09 0.97 1.07 1.07 1.02 0.97 0.97 oem VE 0.99 0.99 0.96 0.94 0.91 0.91 0.91 0.94 0.98 0.96 0.92 0.92 0.89 0.92 0.93 0.93 0.89 0.89 Increase over OEM 11% 11% 14% 6% 15% 12% 2% 1% 26% 14% 12% 18% 9% 16% 15% 10% 9% 9%
I have S2 with stock tune, open exhaust that is mainly my track toy. looking to lean out car as it appears very rich based on the logs I collected a the local racetrack. Should my approach be any different that what you proposed here. Is S2 much different than S1 with respect to AFR tuning.
Here are my logged AFRs:
Full session AFR chart:
Here is AFR down the main straight 4th and 5th gear, braking zone for turn 1 and then turn 1 to turn 3 in 3rd and 4th gear: