boooost question

[wmbmx705]

im getting ready to have a 3 inch dp installed with a test pipe and go 3 inch straight after that. ive noticed that i can only reach 5 pounds on my stock ct26 when the max on the boost guage is 8. im just wondering if its my restrictive stock exhaust causing this problem or what?

 

[dubsupra209]

no all stock 7mgtes boost is 6.5 psi.....you can shim both sides of the wastegate to raise your boost..

 

[mkiii222]

Tired wastegate spring + restrictive factory 'elbow' coming off the turbo.

Factory spec is:
Manual = 5.5 - 7.5 psi
Auto = 4.8 - 6 psi

And don't rely on the factory gauge. About the only thing it's good for is telling whether or not there is turbo pressure. It's not very accurate and very slow to react.

Once your turbo is 'free' it will likely hit 10 psi though. Don't forget to get an aftermarket gauge.