MitsuStyle - View Single Post - Engine Rod knock only during boost? Bad Turbo?

Swanny · 08-22-2011

Im so puzzled. IDK if I have a cracked exhaust wheel or a bad knock only at boost, or a leak...

Just started a week ago under the same conditions, I have this chirping noise, weird noise coming ONLY from the driver side ONLY during 10psi +

I ran the car to 5k rpms with no boost....no engine noise.

I ran the car too 5k rpms with 10psi+ boost and the noise is there.

When the car is running to temp. the noise happens ONLY. Not when cold or slightly warm.

Turbo is 16G, Unknown/authentic? shaved compressor housing, 450cc injectors and stock fuel system @15psi, 3g lifters, 10w40

I do have belt noise that sounds like a rattling heat shield noticeable at low rpms

things to check.

shaft play/ turbo f-ups?
Fix leak between downpipe, 02 housing today, still nothings changed from a week ago
boost leak test

I will Upload a video of the noise tonight... I dont care what the problem is, just hope its not the brand new 6 bolt motor!!!!

08-22-2011	#1
Swanny Join Date: May 2011 Location: Minnesnowta Drives: 2G Talon Posts: 217	Engine Rod knock only during boost? Bad Turbo? Im so puzzled. IDK if I have a cracked exhaust wheel or a bad knock only at boost, or a leak... Just started a week ago under the same conditions, I have this chirping noise, weird noise coming ONLY from the driver side ONLY during 10psi + I ran the car to 5k rpms with no boost....no engine noise. I ran the car too 5k rpms with 10psi+ boost and the noise is there. When the car is running to temp. the noise happens ONLY. Not when cold or slightly warm. Turbo is 16G, Unknown/authentic? shaved compressor housing, 450cc injectors and stock fuel system @15psi, 3g lifters, 10w40 I do have belt noise that sounds like a rattling heat shield noticeable at low rpms things to check. shaft play/ turbo f-ups? Fix leak between downpipe, 02 housing today, still nothings changed from a week ago boost leak test I will Upload a video of the noise tonight... I dont care what the problem is, just hope its not the brand new 6 bolt motor!!!! Last edited by Swanny; 08-22-2011 at 02:55 PM..