3" exhaust=overbooting

[obx tsi]

Would adding a 3" exhaust cause my avcr to overboost? It went from a cosistant 14-16 psi to about 22 psi and bucking at wideopen throttle. As for now I just have my rear o2 just strapped up. I guess I need to readjust my avcr due to the better flowing wxhaust? Any thoughts would be helpful, thanks.

 

[marshall13]

AAHHHHH..

AS-ole.... j/k

I didnt mean to really pinpoint the 02 housing, I was referring to the wg passage to the 02 housing. The same thing I believe your referring to asswell.

I've never experianced creep with a sm 16g, but I had a full 2.5", though. But my evo3 crept like a sob. I ported everything, and installed a bigger door... Which is the same size as an exhaust valve, oddly enough...

Its all good...

My evo3 still had a small amount of creep even though it was ported, had a bigger door, and also a turbo-back 3" exhaust.... of course, I'm sure that it's bound to with the amount of boost I was pushing. But all of the modification on the wastegate and high boost actually caused total wastegate failure. I think an external is the way to go.

 

[obx tsi]

Thanks Spln_Hrd, with so many options I wanted to know which works. I would hate to pay for more than I would need. We will just wait and see how the funds go.