boost fluttering

[ulose2av6]

when i lay into the throttle, there seems to be premature boost blowing off like i am getting off the gas. I cant punch it without the boost fluttering.

 

[notacarlo]

when i lay into the throttle, there seems to be premature boost blowing off like i am getting off the gas. I cant punch it without the boost fluttering.

Probably need to port the wastegate hole. Exhaust pressure may be breaching the seal. (overcoming the wastegate spring)

My 6131 did that.

 

[ulose2av6]

i am using rjc boost controller.

 

[NM Tom]

If it's around 10-15 pounds and then it cleares up with higher boost it's compressor surge. Can be caused by a mulitude of things, search "compressor surge" and read away!