Boost creep solutions...

[Cakes]

Yesterday I took my car out for some blasts down the highway. Around 55 I matted it and it shifted from 4th to 3rd and boost came up to 17 and then creeped all the way to around 20. I know this is not supposed to happen and I want to know if there is anything I can do to solve it. If it matters SM read around 779 with 0 knock. Thanks for your time and help!

 

[scgnx]

Have the turbo waste gate opened up, you'll need to either swap your downpipe out for a Terry Houston 3" with the larger puck or
replace your existing one with a larger puck. This should help solve the problem..

 

[rbond]

You should be able to open up the existing wastegate hole without buying a bigger puck. Take the elbow off. You will see a carbon ring where the puck seals to the wastegate hole. Use a dremel tool to open the hole up a little bit. With your exhaust setup boost creep is normal. It usually doesn't take a lot to cure it. Just be careful not to go too far or the puck won't seal.