Figured it would be nice to maybe start some discussions about peoples current tunes.

Been messing around with fine tuning my tune. Here is where I am currently at.

This is a pretty aggressive (for me) tune on 91 octane. One thing I have been noticing is that the EVO with cams perfers to be slightly richer. This current tune is running more timing then I usually like to. I usually aim for about 18 degrees on 91 octane, this is running about 20-21 degrees at the rev limiter, I am messing around with pushing the limits. :wink:

Anyway, screenshot and the actual log is below. Discuss!



Log:
http://tinyurl.com/paq92

 

ok can i ask a ton of uneducated questions...

first... this is like safc style subtractive fuel mapping right? so you have 720s adn you're takin' away fuel everywhere. coo... i can live with that.

so are you also subtracting the timing that the ecu is giving you? and where are the base timing values then? are you able to tabulate them with the ecu+ correction values? cuz i see the hightlight box gives you the real timing value! this is all very nice... i like!!!!

 

yes, fuel is like SAFC.

Since I am running 720cc, and leaning it out so much, you are right, it gives crazy timing advance. Too much for 91 octane.

If you look at my timing settings, I am taking timing out in high and WOT cells to compensate. The engine monitor top left is showing what the actual timing is where my cursor is in the log, so this pull topped out at 21 degrees advance. Before I took timing out I was hitting almost 25 degrees advance up top, which 91 octane didn't like so much.

Anymore questions, let me know, I want to try and open up more discussion in here and the ECU+ boards.

 

yeah this is great... perfect for newbs like me. the pictures are the most helpful.

 

Agreed, this is a good place to discuss tuning w/ the ECU+. I am about to buy mine and like to see different techniques people are using when tuning. How long did it take to develop a base map for your car? I will be tuning on top of a flash already, I just got sick of paying to get reflashed when I have the ability to do it myself. The ECU+ looks great and the features are still being developed which I like even more. Tom seems to be a car nut just like us and actually listens to customers feedback when developing which is a huge plus in my book

 

Just took a look at your log and was wondering if your A/F is safe being around 12.0 on 91 octane. Looks to be giving a lot of timing advance that you are obviously removing. Knock looks good as well, I am just used to hearing how everyone tunes really conservative on 91 swill. I am in the process of logging my current dynoflash and will be smoothing out the fuel curve and adding more timing down low as well. Just wondering about the air/fuel tough.

 

Be sure to set the ECU+ software to Zeitronix wideband when viewing my logs. That way the AFR will display correctly. I am not running 12.0 AFR anywhere. 11.2 AFR up top.

I have to remove timing because I have 720cc injectors which makes me take out alot of fuel which advances my timing. 91 octane doesn't like very high timing.

 

Gothcha, that makes much more sense Switched it from my AEM and looks good

 

That AFR looks about perfect. Agree on Big cams like to be richer, too. It's interesting that my fuel table looks almost like yours even though I run 780cc. I also run methanol so I can keep a lot of advanced sparks.
Good Stuff!

 

Say you were running stock injectors, how much timing (and fuel) would you have had to remove on top?

 

Depends on the cars and the mods of course, I have seen and tuned from -10 to -14 fuel and about -2 timing up top on 91 octane.

 

I love this stuff. Looks like a very good conservative tune. I cant wait till I can pull the trigger for ECU+.

 

Best ECU+ tune I've ever seen. I thought I was pretty good at this, but damn.

 

:::Also Posted on the ECU+ Forums - Figured I'd share here too!:::

2 logs obtained tonight.
One till around 7000rpm

And another full one till redline.

Mods btw:
04 Evo 8 9.8t Housing Stock Turbo
3inch TBE w/ RRE Rally Cat
Hallman RX Pro w/ In cabin adjuster set for 1.5 Spike to 1.4 taper
720cc Greddy Denso Injectors
Walbro 255lph Fuel Pump
Stock Airbox w/ K&N Drop-In
HKS 280/280 Cams
Fidanza Cam Gears set to -3/-3

I weight 170lbs
Tires are 255/40/17

Used an edited version of Bryan/EarlyApex/RazorLab's Fuel/Timing Settings as a base map- and a ton of his advice and guidance.
EGT's topped out @ 1549f



Am I doing this stuff right? Comments/Suggestions? I'm a n00b so I dont know if I should/can lean it out some more ~ And if so - where do I begin? From the top ? From the bottom? Where timing is being pulled? I dont really see high knock voltage, and I do see a dip or 2 in timing. ..

I'm open to all discussion! RazorLab/Early Apex has been such a great help so I'd just like to give him a big thanks for helping me getting started on my tune!

http://beta.yousendit.com/transfer.p...39BFFB3EBC9D86
1st Run - stopped @ 7000 RPM

http://beta.yousendit.com/transfer.p...8E124D7147D73E
Good 3rd Gear Run Log

 

According to this, if I put 0% Tranny loss I'm only making - 227.5Max hp & 242.4 tq - does that sound right? =X