Mods:

Intake
TXS TBE w/ TP
MBC
UTEC

91 Octane

 

Jack,

When I plug in this datalog into DLL, I come up with this (uncorrected, smoothing 3):



However, I do not think I'm using the program correctly. I tried plugging in Archie's first log and I come up with something different than that of yours. Could you plug in my log and see what you come up with?

 

I typically use smoothing of 2 or 3, and third gear for the pulls.. the second graph is corrected.. also, tire size / wheel size makes a difference (by a few hp/tq) also, what "ballast" (weight) are you adding? Those things will make a difference if your altering anything..

 

ok.. here's a few things I observed from your pull.. the last few samples of data are missing that shows the "downturn" of the engine.. so it shows a trend that is still rising.. you need one or two samples of the end of the pull otherwise the program thinks the HP is still climbing at the last sample.. (It very well could be)

Also, weather and altitude have an affect on power output, that is why corrections are so important.. however you can see in the graph (the pull that says "your power" is yours, and the pull that says benchmark is the last pull that was supplied by archie.. The curves are very similar, though the peaks are slightly different.. However if you applied correction to it, I'd suspect they'd be much closer.

This graph, both pulls, no correction, smoothing at 3..

 

Ok.. now, I can tell from your pull that your boost level is different, you appear to be getting a spike of boost earlier, tapering to around 19 or so PSI.. notice that archie's torque curve is flatter, which means that his boost climbs to 19 or 20psi, but remains there until later in the RPM range where it drops slightly, but not by much.

 

I don't know what car configuration file your using.. But I think I'm using the "Stock" EvoVIII-5 speed.car file..

Again, even this software isn't consistent between different copies, just like dynos are different.. Calibration has an effect..

 

What is interesting about your car is looking at the data, the stock ignition timing is wacky.. its trying to retard timing after TDC as you approach torque peak.. That is a classic symptom of an aftermarket intake (hence why people feel like they've lost power) Your timing map is similar to mine however and a bit more aggressive (7 degrees) compared to archies (around 4-5 degrees) Fuel quality makes a big difference in this case..

Since you guys don't have EGT or AFR I wouldn't recommend trying to make any more changes until you can get on a dyno..

But (Hot Feces) in your case, the HP numbers are off because the last sample shows HP climbing so it trends higher instead of finding an actual peak.

 

Thanks for the responses Jack.

BTW - I'm using a 200lbs ballast with the Evo VIII 5-spd config found on the DLL website.

 

Also, do you think you could post one of your datalogs? I'm just curious as to how mine compares to yours.

 

I'll see if I have an earlier one I can post.. I can't post any of the new ones because of the tuning I'm doing and the beta testing..

 

Hi, Malibujack this is my latest run tonight.

Can you analyze the data for my latest run?

To see if its safe to run it on my settings based on the data log I did.

I also noticed that my Injector Duty Cycle droped to 72 percent compared to my previous run it was at 80 percent by redline.

What is the meaning of this? Does it mean that I can boost higher to get it to 80 percent again?

Please save the atached file.

Thanks Again

 

Actually it depends on your boost level.. Your likely now in a lower load site on your map than before.. the problem is that your now running 8% leaner (without a wideband I can't tell you how much) if you are at the same MAF reading and Boost level... if your boost has dropped, that can explain the lower demand, hence the lower injector duty.

 

Can you plot the power graph? I want to compare it to my last run.

Also if running 8% lean, is that dangerous? I mean if its too lean then you will see some knock right? Also the ECU is gonna pull some timing.

Thanks

 

Likely its a little lean.. not sure how much headroom you had before though..

 

Please let me know what you find out about the gains, I have upgraded the upper intercooler piping and a Greddy BOV.

Thanks