Thats good to hear! The XEDE made me a very happy B4 owner as well!

B4Cruiser wrote:

:happy:  Hardest part now is not digging deeper into my pocket for more mods!

Thats good to hear Kev....

bet it hauls now.

better start organizing the next melb cruise

good to hear... if only my xede would fuggin work properly.
although im happy enough without it, i want more...

Nicely done

Go for an exhaust and CAI as ur next mod to open her up a little more

Have you heard the standard Kosti tune  - over 150Kwatt for 1/2 the price :Derisive:

hey Kev,

great stuff dude, especially in summer, Im yet to hear my car ping yet, and thats with a home made Kosti tune!! (well done fat head)..

but for some reason my boost has dropped from the 20's down to 17 psi.. maybe the hot weather trips the ECU to lower boost??

but all the same, enjoy the car dude, tune is the best thing ever!, along with Kosti's ass.

yeah, your right.. the last thing I want is for it to attempt 20psi in 35 degree heat.. thats a recipe for disaster..

but this morning alone I only got 17psi out of it at 22 degrees.. I guess i'll wait till winter again and see how we go.. it better go back up to 20+psi!!

would the ecu teach itself average temperatures and reduce boost, meaning that I'll have to drive it a bit in winter for it to learn to boost higher again?

AFAIK there is no boost compensation table for intake temps on the B4.

There is coolant temp compensation however. Looking at some of the ROMs i have here these are zero'd out. I woudl be more inclined to just putting t down as heatsoak and relative humidty that is causing your reduced performance.

What's your IAM say?

dont apologise for jacking a thread when its not whoring, but actual useful ecu info..

thanks heaps for this, it does make ALOT of sense...

we tuned the car and completed the mapping when we were having 12 degree nights..

the maps wouldnt come in to play at all at those temps!, ... but is it intake temp or intake and water temp?

even on 16-18 degree nights I was hitting the big boost in winter.. now on the same temps im getting ghey boost.. but by reading your post and your maps, I  guess I have to wait for the thermometer to drop below 18 degrees to get the maps and boost back!

once again,

thanks heaps!

XXB4XX wrote:

dont apologise for jacking a thread when its not whoring, but actual useful ecu info..

thanks heaps for this, it does make ALOT of sense...

we tuned the car and completed the mapping when we were having 12 degree nights..

the maps wouldnt come in to play at all at those temps!, ... but is it intake temp or intake and water temp?

even on 16-18 degree nights I was hitting the big boost in winter.. now on the same temps im getting ghey boost.. but by reading your post and your maps, I  guess I have to wait for the thermometer to drop below 18 degrees to get the maps and boost back!

once again,

thanks heaps!

XXB4XX wrote:

dont apologise for jacking a thread when its not whoring, but actual useful ecu info..
thanks heaps for this, it does make ALOT of sense...
we tuned the car and completed the mapping when we were having 12 degree nights..
the maps wouldnt come in to play at all at those temps!, ... but is it intake temp or intake and water temp?
even on 16-18 degree nights I was hitting the big boost in winter.. now on the same temps im getting ghey boost.. but by reading your post and your maps, I  guess I have to wait for the thermometer to drop below 18 degrees to get the maps and boost back!
once again,
thanks heaps!

FOZ13 wrote:

It controls how quickly it attains the target boost, yes. they higher the duty cylce the quicker you reach target boost but the more likely you are to overboosting and then it will pull boost out, the result is this wavering boost curve.