211Ratsbud

iTrader: (1)

your peak load should be your lowest timing point.

find a spool timing amount that doesnt knock. tune your full load cells. go back to your spool timing and add a degree. Heres how I set my scaling up.

RPM increase 250 increments no matter where. start at 1000 and should make it to 7500 or so.

I literally interpolated my timing after setting my RPM to that and the timing curve is nearly identical for me. I tune a lot from the 3d view, and with your RPM and load scalings consistent you can gain a better feel of trending.

steven121

iTrader: (27)

How did you interpolate it? Did you vertically or horizontaly do and which side of the map did you highlight to? I will di this today

211Ratsbud

iTrader: (1)

Vertically. You can hold timing for 500 rpm after peak load so you'll have 1* for 750rpm then interpolate after that. So you'll have to highlight your last row of 1* to your top end . Then for safety's sake I highlight the loads after my target and decrease the whole column by 1* every 20 load.

Again consistent axis scaling is crucial for best visualization

Guarantee for success ? No but it's the concept

When you're starting out tuning each cell sucks so I make bulk adjustments.

211Ratsbud

iTrader: (1)

And having afr inline is a big deal too. Rich tip in and spool will cause misfire / knock sensor readings too.

steven121

iTrader: (27)

Lol i somewhat get what your saying the only way i use interpoate is when I finish tuning timing or fuel make a big adjusement then go through every cell to make sure it coralates, ill probably just make the rpm adjustments 250 each and just start over on fuel first then adjust my timing. Ill show you the map probably thursday

Live4Redline

iTrader: (2)

Any helpful opinions on an Evo IX, FP Red, e85 tune... ?

Its an 06 Evo IX with completely stock unopened motor. Mods include Megan O2, Megan Downpipe, 3" intercooler, and FP Red 84mm turbo with a custom Mivec map. My first time playing with e85, I'm hitting 310 load and i have zero knock other then random shift knock. The car has always liked a little bit of timing and is tuned to the curve and not pulled back from knock. I still want to play with it a little more and check a few things but some opinions would be nice before i put the final touches on it.

Quick question... what causes the dips in power at 5500 and 6500 rpms?

ReaperX

iTrader: (5)

Take a look at your timing from 240 on up in the upper rpms. You have a bunch of 8-7-8 as rpm increases and so on.

The dip in your graph is the is your actual power. That big spike at the end is from the road you're using. Do smoothing 3 and clip the rpms at 6750 and that will give you a more accurate representation. Might wqnt to read the virtual dyno tips thread in the dyno results section.

domyz

iTrader: (6)

Even at 250+, there are 9-7-6-7-8 areas. I first guessed you were fighting knock but you said the opposite. Start by trying to ramp up timing. I bet you will run a lot more up top. E85 maps usually has a lot more timing than that: about 5-6* at peak torque and 17-18 up top, even more if the turbo is out of breath.

211Ratsbud

iTrader: (1)

Just putting it out there... Get rid of the 11000 scale it's taking up a third of your visual graph space. Your graph gets much easier to see with consistent scaling

evo8426

iTrader: (27)

I think you have too much timing at peak torque on a stock motor but you are running fairly low timing in the high RPM range. I would add fuel to get it down to 11.8-12.0 afr. On a stock motor I would not go past 400tq in the early RPM range.

Update your version on Virtual Dyno and don't hide your power numbers.

I am also adding a scaling that would help with resolution on your map.

211Ratsbud

iTrader: (1)

+1 on that scaling similar to what I use

steven121

iTrader: (27)

I guess my question is for timing really hard to understand
does increase or decrease timing makes a faster spool up until you reach peak?
Then From peak to ending peak on the load vs rpm scale do you keep increasing timing down the blocks until you hit knock to hold that boost for power?

It seems like this is my main struggle, fuel tuning is easy as ramen noodles
I guess help me understand im at 26 pounds of boost but my timing is indeed pretty low

domyz

iTrader: (6)

Long story short, for a faster acceleration and lighter car feeling from no boost to peak load, I run 13.0 AFR at 100load(tip-in) then about 12,5 for the spooling time, and richer at peak load... and I run the most timing I can.
The other theory suggest to decrease advance and richen AFR to create heat for spool, but you'll lose some torque while doing that.


It's as simple as:

• Timing decreases when load increase and
• Timing increases when RPM increase.

If you're building the map with these rules in mind, you automatically have these effects:

• When you're spooling up: Timing will decrease until peak load
• At peak load: RPM will rise faster than load decreases so timing will continue to increase

If you encounter knock, reduce that area and continue to follow the rules above. So everytime you want to pull or add a degree of timing at a specific load, you'll end up reworking the map a lot.


Example you have this ramp from peak load (ignoring AFR and boost influence)
5-5-6-6-7-7-8-8-9-9-10-10-11-11
If knock occurs often when timing raise from 7 to 8 try:
5-5-6-6-7-7-7-8-9-9-10-10-11-11
If it occurs again try
5-5-6-6-7-7-7-7-8-9-10-10-11-11
You see you have to keep the curve increasing, don't create a decreasing dip like in the map you posted.




Everytime you have rework the map to keep following the above rules...



..............and for reference these two maps posted recently will show you what I explained: Obviously my current map /211ratsbud map

10isace

iTrader: (12)

Oops!

Good explanation.

domyz

iTrader: (6)

Yeah thanks 10isace

-simple things are always where I make mistakes (that's why I often have to clean the toilet )