I've been boosting at about 14-15psi. So I went to do my first mod at Pepboy's and got a K&N filter. As I was putting it in, I pulled up on the stock air box and the tubing came completely out of the turbo. So I reattached it and took it for a ride. I am now boosting about 15-16 psi. Is this normal? Do we get 18psi from factory? Is my turbo just new and needs sometime to break in? It's only got about 270 miles on it now.

 

it is called the learn down feature and you are about to get raped by it..... that k&n is good for 10 to the wheels which you DID gain..... but eventually the ecu will push the boost down........ and you will be back to stock, hope this answered your question

o and welcome to the site <= post number 900 for me

if you need more answers on the learn down feature just search either the lnf general forum or the 2.0l lnf tech forum or just ask some one

 

Boost varies based on a lot of factors, the ecm has to make 260hp/260 trq in the end so on some days you'll see more boost and on others you'll see less.

 

Man I really need to get that tune.

Stupid learn down.....

 

lol yeah with a good enough tune you'll be running 12's in no time

 

Tunes are still the best Best BEST mod you can get for these cars!

 

no doubt in my mind for that one 300 dollar to be over 300 whp on a mustang..... **** yes!!!!!!!!

 

This means along with a CAI upgrade you should also get a PCM tune. Is this what you guys are saying?

 

i was doing 16 psi before the hahn intake, and after 2 weeks of driving with it im still at 16 psi, and seems faster. why isnt my computer learning down? i thought it was quick at that.