in case you guys have never seen this type of thing, here is what we use to record the...
air/fuel ratio
rpm
boost
throttle position
ect...

this was a 1st to the middle of 4th gear pull, the gas pedal was planted the entire way, notice how the t/c pulls back the signal to the throttle body when the tires break loose (the car did not go into the "fall on its face" mod either, it was un-noticable while driving).

also notice the boost curves thru the gears. it was fairly warm out today hence the lower psi we were seeing (we peaked around mid 16psi today instead of the mid 17psi we see when its cool out).

we have a little more fine tuning to this calibration to do and then it should be ready for you guys to get a reflash from inmotion with it.

i can email out the real file so you can move the vertical line and watch all the values all the way thru if anyone is interested

 

What are the modifications to the SRT6 that was tested?
Thanks.

 

thanks, that is interesting, finally got the CAI on...love it...will you have anytime during WWDC to do tunes? Not to change the subject, just haven't seen you post lately...

 

our cai
our intake manifolds
asp pulleys
inmotion reflashing

we did not open the exhaust cutouts on this run. i went for quiet 130mph versus really loud 130mph on our private test track, ill open them up and datalog some more once we make it back to the dragstrip

 

we send all the tunes over to james at inmotion. we do not flash them here sorry. if there is enough people interested im sure james would fly out here for the dream cruise but it would need to be organized ahead of time. ill have time at the dream cruise to kick back and have a beer with ya guys tho

 

What software are you using for the data logging runs?

 

zeitronix zt2 recording onto the palm pilot

 

I'm for the beer...I get the info from you there....back on subject ....sry

 

Im pretty new to data logging myself.

When i read my values i compare the data numerically down a timeline from the time the car is started till the ignition is cut off. The line graph screens confuse me more than simply comparing the values under similar conditions in different runs.

Am i making it harder than it needs to be?

 

Thanks for the interesting post.

By the way, I do not believe the throttle is being modified due to lack of traction.

What is happening is that the throttle is being closed slightly during gear changes.

 

I see what you are talking about. I wonder how many cars's ecus' out there perform in the same manner?

 

That I have no idea.

But I do remember Tiff Needell discussing how letting off the throttle creates smoother gearshifts on the M5 SMG when you temporarily let off the throttle.


http://www.youtube.com/watch?v=_zYWOqm_Zkc

Fast forward to 3:00.