so i guess that with the xede i have to do data loging. this is something that i have never done and would like to have someone help me this weekend if there not up to anything. i already have a tune from shiv but he told me when i got back home(b/c i drove to cali) that i could up the boost from 22 to 24. thanks and let me know i would be willing to drive a little bit, but not to far. thanks agian michael

 

What are you running now? Is there a reason its lower then that?

 

when i was in cali shiv set it at 22 for 91 bc i was driving back on 91. and just told me to up it to 24 when i got home. i think that is the only reason.

 

I honestly wouldnt go any higher then 22psi on pump gas, unless there is something on xede that allows this. But to me anything above 21-22 on pump gas is asking for trouble, the few more hp you may or may not make from the extra 1-2psi is not worth the risk.

 

Here is how to do it:

First fire up your laptop and connect it to the XEDE.
Open Xmap 3.2
In the bottom box it will state "connected" to the XEDE
Go to the "map" menu and hit "download maps"
once it finishes downloading, save it
Then click on the boost button
A map will pop up and you will highlight all the boxes in it.
Then hit ">" 3 times (Doing this gives about 1 psi). This will show all the numbers increasing.
Save it again (under a different name)
Go back to the maps tab and hit the upload maps.
A box will pop up after it uploads asking you to "burn to EEprom" click yes.
If the burn to EEprom doesn't pop up go to the maps tab and click it there.
Now your maps are loaded in the XEDE. Turn the key to the off position.
Now your ready to go.

 

23-24psi is perfectly safe on pump w/ the XEDE, SMART, and a bigger turbo. I have run up to 26psi on pump w/ no knock. Most of the time I keep my boost pressure around 24psi, but I get spikes up to 26psi in the winter.

 

You also have 880 injectors.

 

So? 550cc, on the stock ECU and stock turbo, will support 23psi on pump. I know, because I ran that way for 10,000miles. It all depends on how much timing you throw in at peak torque.