Hello there,

This Thing start happening after installing my New K27 Turbo 4 days ago.

Please not that all the following items was installed new 3 months ago and my car was running perfectly:-

Tial 1 Bar WG
Fabspeed " IC, headers, Muffler, Air intake"
Boost Pressure Switch
Relay for Air Flow Sensor Boost Pressure
New Fuel Pumps front & back
Distributor Cape
Ignition cables
Coil Wire

My Car is over boosting now after the new Turbo installation and I think this is what cosign Cut of or Jerking engine after 4000 RPM.

what do you think i have to do, change my 1 Bar WG to .8 or .9 ?

Is there specific procedure to do with the car after installing New k27 turbo ?

any of you have the same combination K27 with one bar spring WG on his car ?

Thanks,

FAHAD

 

I run a .7bar spring in my Tial WG bolted to Schnell headers with K27HFS piped to a Zork and my 935 style boost gauge shows ~.85 bar near redline….

 

I have the same setup, just about. I get zero overboost, some will blame the header design, but it's gotta be something amiss with the install.

 

TT Surgeon

Do you have the K27 + 1 Bar WG + Fabspeed headers and your car running smooth ?

Some one just till me that Fabspeed headers They are typically made undersized (tubes out of heads are 1.50” O.D.) and the pipe off to the wastegate designed does not allow exhaust to bypass the turbocharger properly. This results in too much flow through the turbo, and too much boost.

But i'm still not sure, I think i'm going to change my WG spring to .7 or .8 Bar what do you think ???

FAHAD

 

Yes, I have all of the above except an Andial IC and an Andial modified k27
Car runs great. The headers are the same design as BB, ghl and others. It's not the headers or else mine would do it too.