Hey Everyone, please take a look at my logs and let me know what you think. Any suggestions on flattening out my power curve would be really helpful. I think I might can run a few degrees more advance up top but I havent tried yet as I've been working on the mid torque. Really any suggestions would be appreciated

My mods: Tannabe catless TBE, Works Drop in filter, AEM TruBoost gauge / controller (peak boost measured 22.2 at spike). Self Tuned.

Also, My wideband is not logging in datalog lab since I added IDC to my logs and re-arranged my data items in Evoscan. It is logged in the Evoscan log file. If you spot the problem here please let me know.

Here are the EvoScan logs with IDC calculations
http://www.rgvimports.com/pics/MrEvo...4_07.43.20.zip

Data log graphical (Second 3rd gear pull in above log) w/out Wideband?, was working before I added IDC and re-arranged Evoscan data items.


Data log powergraph

 

nobody?

 

seriously, I spent a few minutes looking at your log.....and it's long, and there are a lot of part throttle parts in it that makes it hard to judge what's going on.

Do a few clean runs that have just the run in it (BUT BE SAFE), or tell me precisely where I can find your WOT, because after about 5 minutes I got frusterated.

The one half assed run I saw looked pretty clean, but another one looked like it needed fuel around the 5k-5.25k and 200-220-240 load cells. That's a guess for me though heh, I dont have evoscan at work to look at it.

 

Higlight the TPS column by clicking the F column in Excel and then go to edit at the top and find "100". Then click find again to scroll through WOT parts.

Good trick to know when you log all the time. I'll go ahead and parse out the WOT though.

 

no that's fine, I'll do that, thanks for the tip.

 

It's a good clean tune, with a good timing curve and good AFR band, you're not going to get anything out of it more then what you got.

Good job on tuning it, you wouldn't get it any better from a store.

 

Also helps if you hightlight the second row, and go to "Windows"; and click "freeze Panes".

 

Hi

You should be able to get a bit less boost taper to give you more at the top of the rev range, otherwise that is a really nice clean tune. Did 4TUN8 and I just agree?

MB

 

No, because I'm a newbie and I don't know anything.

 

Oh Ok, if your going to sulk about it.......thats a joke BTW.

MB

 

A negative side effect of the AEM Truboost controller for sure. I wonder if the AEM upgraded solenoid would hold boost better. I'm really considering upgrading the boost control solenoid on the stock system and using it instead but it doesnt really protect against weather related spikes. Do you think all of the power / tq taper is only related to boost taper or do you think I can do more work on the image up top?

 

Hi

Does the USDM MR have the twin solinoieds? I suspect not as the USDM IX does not. Maybe a perin or similar might be worth a try. The Apexi AVCR seems good at getting a well configured boost curve, but it would seem to need some setting up.

MB

 

The USDM MR does not have twin solenoids :-(. I wouldnt mind keeping the AEM as it has a relatively simple interface and other than the taper it works well. I think I'll try to give AEM a call and ask them why it has so much taper and what can be done about it.

 

Try giving it 1 more degree of timing from 5k on...see what happens, if it knocks revert, but I think it will work, might flatten out the torque a little.

 

Well guys, I called AEM this afternoon. They suggested lowering my Gae (crack pressure, kind of like gain I guess) and raising my wastegate duty cycle which I did and went out and did some testing but didnt get any less taper. I think it held boost better with ECU controlled boost even with the pills in due to the error correction. Maybe I'll try taking them out and see if I can get the loads I'm after - 250 spike tapering to 225 or so would be awesome, I think the car will be a real rocket then.

Do you think I should use the AEM solenoid and use the ECU to contol it?