Random boost drop

[NiklasStrom]

hi

As the title says, i have a problem with my car suddenly droping boost. I'll try to describe it as best as i can. I have searched different forums, but i cant find anyone with the same symptoms, so i hope you can help.

It happens at random, under WOT, usually in third, fourth or fifth gear. When i go WOT, the boost peaks at 1,3 bar and drops to about 1 bar where it usually stays. From time to time, the boost drops down to 0 or less bar for half a second - second and shoots back up to 1 bar. It can happend up to 3-4 times in the same gear, all while WOT. Things done to the car include; forge dumpvalvle, custom 3" downpipe, bsr exhaust, chiptuning and a conefilter setup. Other than this, there havent been done much to the car.

thanks in advance for any answers

[MoparFreak69]

You either need a better tune or something is going on with your wastegate. The ECU sees an overboost situation and is trying to correct it by shutting the throttle butterfly momentarily.

[NiklasStrom]

was a bit worried it might be the tune, i do plan on doing a remap after a few upgrades. hoping that might help then.