I've had a couple tunes done since installing the v2. It's getting better and running pretty good now. The last tune pulled 340 hp. At a track day last weekend I was have rich issues when holding rpms in the 6 to 7.5k range. At other times during normal driving under certain loads / rpms it would also run rich - like bury the wideband rich. I made some minor tweaks on the fuel map and it is much better, still a little rich but safe.

Looking for some opinions on my maps. From what I've seen on other tunes, my fuel map seems low and I really don't understand the ignition maps enough to mess with it or even know if it is aggressive or conservative.

How's it look? Reasonable, good, bad, horrible???

AP1 stock block, Comptech Novi 1000, 3.6" pulley with 10lbs boost, aftercooled with large exchanger, DW 1000 injectors, VTEC at 4,000 rpms, 93 oct pump gas and a stock map sensor.

 

For the fuel map I prefer to look at the raw 0-255 values. Easier for me to understand. Might help ya with your tweaks. As for ignition I was told peak timing at peak rpm. Yours is different. Soo idk

 

Your fuel map may be a "base" for your boost compensation tables (as it was pointed out to me before by sohcmshue).

It adds x% amount of fuel for certain amounts of boost.


As far as ignition, do you have any logs with knock being recorded? I know I can't run that much timing at 10psi without getting some knock (on 93). But my setup is different (short runner turbo manifold).

The only way to fix your rich spots is to make adjustments. I would get some logs showing what is happening, then you can decide to change it from there. I think changing it realtime would be the best option though.

 

you can change the o2 feedback % i believe and it will allow the car to adjust itself after a certain amount of driving in that throttle position. it will try and reach whichever target afr you entered at that specific rpm and should greatly help your afr and gas mileage


egt gauge may also help with your ignition tuning

 

Could you post a log?

 

Thanks for the feedback guys. Been really busy with kids and work. The next few days will be crazy too but I'll try to get a log run tomorrow or Wednesday and get it posted.

I can't find how to change the fuel map values to raw in the AEM? Doesn't seem to be an option or I just can't find it.

Everything in the boost table is set to zero.

O2 feedback could be creating some issues, all rpms at or above 1.5 lbs of load are at 11.8 AFR's. Need some tweaking there. Great suggestion!

This might be a dumb question but should my boost gauge match the load reading on the AEM? They seem pretty close in positive pressure, but no where near the same on the negative side. I have a cheap autometer boost gauge.

 

To look at raw units, change the setting under

Tools > Preferences > Unit > Fuel Units

My map sensor to boost gauge is a little off under positive pressure (map reads about .25-.5 psi higher). In vacuum though, the map only reads in negative psi, while your gauge probably reads in inhg (-11psi ~ 22 inhg vacuum).

 

Your timing curve looks good. Its where I would expect to see it for a supercharged car at your boost level.

I don't understand your fuel chart. but my guess is some area may have been overlooked under part throttle but tuned as if you were under full throttle/load so as you lift its still delivering the same fuel amount causing it to go rich. Its much harder to tune part throttle load then WOT and scale that through the entire rpm range. The suggestion of setting up 02 feedback is a good one, if set up properly, will let the car read your throttle input at various part throttle load points through the rpm range. I Run Emanage Ult but i'm sure you have the same capability with the AEM. Just set 02 feedback to come in at say 30% or 40% throttle position and make sure your afr target is set where you want, like 12.5 or so, and the input fuel resolution/amount you want per cycle depending on how far off the afr is (lower % per cycle is more precises/better but will take more driving to influence the correction amount needed) drive the car around until it corrects itself, once it does put the 02 feedback back where it was in the highest resolution state or off all together.

 

I thin you just right click the map and select raw don't you? Lemme check mine.

 

I swear I looked there and didn't see it. But, there it is . Here's my raw map:



Like I said in the OP, its really running pretty good now. But I am new to this, don't really understand everything and playing around a little - I just don't want to push anything too far.

Looks like my this evening just freed up for me, I'll try to get a log run.