I have an issue im trying to troubleshoot that deals with a shudder "sometimes" when im under high boost shifting between gears 2 to 3 and sometimes 1 to 2. Normal driving it doesnt happen.

So anyone here who has experienced a turbo inlet hos collapse does this sound kinda right? In my sig are my mods im running a stock turbo inlet hose right now which may be the cause.

Thanks for any comments and suggestions.

 

Stock hose should be fine unless it is damaged. You sure your not leaking somewhere? Do you have a boost guage?

 

I do have a boost gauge and it doesnt show any leaks but I have not check anything else.

 

maybe a dv?

is it older?

 

DV was replaced a little over a 3 months ago and this issue was around then so I dont believe it is the issue.

 

what do you mean exactly by "shudder" like the engine does? or you hear a sound?? or your boost fluxuates?

 

Just incase anyone has this issue in the future I have finally solved it. The issue was the Turbo Inlet Pipe and installing a Samco Turbo Inlet Pipe resolved the issue.

So to recap slowly after I installed the K04 installed I was getting larger and more fequent jolts when shifting at high boost. Boost would also studder here and there sometimes when above 15 PSI gaining and losing 1 or two PSI constantly, this was noticed after one of the posters above asked. I origianlly didnt notice becuase of the small amount. Normally I can hold somewhere around 18 PSI. My guess is that between shift my boost was dropping so dramatically the original turbo inlet pipe was either collapsing on shift or when the boost became too much leaking severly causing a massive jolt becuase of the sudden loss of pressure. The first of the two sounds more reasonable to me.

After the install of the new turbo inlet pipe I do not have the jolts I used to and shifting is much smoother and I have more HP (based on my butt dyno) than I did before. So a leak or collapse seems like it would be the cause.

Hopefully this will help someone out who has a similar issue.