Hey bring you peak Tq timing down to 1-2 degrees unless your car doesnt mind it at 4*... Most cars prefer 1-3* up top

 

Please take what I say with a grain of salt. Its only meant to point you in the right direction. I self-tune too but in no way do I claim to be a professional or even reputable.


IMO you are running a bit aggressive in timing in the mid range and not very aggressively up top. I keep midrange closer to 3 and 4 and up top I'm at 17 degree. This is my log: https://spreadsheets.google.com/spre...JTOXc&hl=en_US. Try to see what other evo VIIIs (not IXs) maps look like and start from there.

Also your fuel map will most likely not look that smooth on the run. Even if cell to cell you have the exact same #s it will show a different value on the WB02. So listen to the WB02 readings and change fuel map according while still trying to keep it as smooth as possible.

 

No no, thank you very much for the input. As far as the timing goes, this map I just made is from the final map we used to tune on the stock rom........... I just transferred over all data and smoothed in between with the added resolution. I get zero knock on the mid range timing, which we were both surprised about... we started lower believe me, and just added until the car said no. Up top, this was all the timing I could get out of it, anything higher knocked to hell and back. You have to remember, I'm running 29 lbs of boost, tapering down to 27lbs at redline......... I don't know if that is what makes it impossible to run more timing up top than I am? I also only get to 260 loads, the rest of the map was just to fill in. So my timing up top is actually in the 260 load cell.

 

Thanks! I don't know why I didn't see this sooner! I'll lower the timing at peak tq and lower the timing and log. I've based my timing on this link from GST https://www.evolutionm.net/forums/6874325-post94.html. It seems he recommends 4 degrees more timing for the VIII. Of course I fined tuned it, but since I had to change back to a stock exhaust from a 3", it got a little messy. I need to spend some time logging and fine tuning.

BTW, I put in new BR7ES plugs gapped at .022" and all my high RPM knock is gone! Also, car runs better all around. I was using the BPR8ES because of the 90-100 degree weather and 30psi I was running, but I think the stock heat range is better for my set up.

 

I see what you're saying about the midrange. Are you saying you can't run more than 11 degrees up top because of knock issues? If those are the max timing #s that you can run given your boost then so be it. IMO its usually better to trade timing for boost. Now work on your fuel map.

And smooth out your timing map. I actually don't use interpolation (too much voodoo magic for my liking). On the timing map I went cell by cell and made sure it was as smooth as possible. I'm sure others could tell you how to use the smoothing function properly. For every difference in load of 10, the timing shouldn't change by more than 2 degrees.

Also realize that although your tune may not knock when you were tuning, it could knock in other conditions. Thats the good thing about the tephra knock light. I found a lot of 3 to 5 count knock on my tune when I was at the track, even though when I was tuning it showed 0 knock on the log. Made some adjustments to keep it knock free.

 

ok, here we go.
Getting some consistent knock @ around 6500, 3-5 count.

Also, how do I get JDM Map to read correctly? My formula is: 0.19347*x-14.7. Map Sensor is from 9.

thanks in advance.

 

Maybe I missed it but what fuel? If normal pump gas you are too lean which is probably causing your knock

 

93, forgot that

 

Like wizzo said, looks like you might be a bit too lean catman. running .2-.3 richer afr and see if it helps.

Also, the map sensor from an evo ix is not a jdm map sensor, it still only reads 1 bar. Are you sure you have a JDM map sensor in the first place?

 

How much boost are you actually running? I think the other problem is your not running enough timing up top. Maybe bump up your top end to around 10 to start. Sometimes not enough timing will cause knock.

 

The serial # on Map Sensor is MN 153281. From searching it looked like it had been used to log boost. Maybe not?

Boost gauge reads 26-27, which is what I was told it was tuned to.

From what I can tell, It's running Main Map Wastegate Duty only.
There are no values in Boost Desired or Boost Addrer.
Have no idea why tuner did it that way. Had it done BEFORE when I 1st got car and didn't know sh...

thanks guys

 

That part number appears to be a regular USDM 1-bar MAP sensor, which is useless for logging boost.

 

Thanks Raptord, I can pick up one local.

 

Can someone direct me to the thread on how to change where the resolution is in the ignition map please or just quickly tell me how? I changed the load and rpm numbers to where I needed them, but how do I move where it breaks the rpm's down to 250 increments?

 

I'm not sure what you mean. If you want to rescale, edit the axis cells the same way you would the regular map. keep in mind changing the scaling in the timing map will also change it in the fuel map (and vice-versa), when on big maps in Tephramod. If you're not on Tephra, rescaling affects other tables as well, though I don't know which ones.