Overboost issue.....

OneJZsidzilla

New Member
Aug 19, 2008
61
0
0
Hollywood
Ok, I have been trying to figure out why my car continues to bogg when I floor it....I had someone check all the fuel lines, fixed a small crimped section, and ran it, but it started overboosting. My buddy said it was because I am running open downpipe and there isnt enough backpressure for the wastegates to work properly. Anyone with any thoughts?
 

Turbo Drifter

New Member
Dec 8, 2005
534
0
0
Surrey, BC Canada
With a free flowing 3.5in exhaust and a high flow Y pipe I would hit 19psi with no boost controler. It would then fall back off to about 17psi at red line.

You friend sounds right, fit an exhaust and see where it boosts too. If you do not have a FCD you maybe hitting fuel cut.

Jeremy