CaneyJ
18-11-2007, 04:46 PM
Hi everyone. I’m working on a project that involves turbo charging a low capacity petrol engined car in the pursuit of performance. I chose to use a small K03 turbo bolted to a custom flanged manifold; however the car seems to be over boosting.
The aim is to run the car at a low boost level of 4.5 psi and I have believe I have wound the nut on the actuator arm to the maximum but I am still getting 10 psi of boost.
I was just seeking your more expert opinions on what might be wrong. I’ve discovered it’s a VAG turbo as fitted to old TD golfs. I was under the assumption you could turn a turbo down to 0 psi where necessary, does the K03 have a minimum level? Does anyone know what level of boost they run on a golf as standard?
The turbo actuator has 2 pipes leading from it. One leads to the turbo housing whilst the other hangs loose as I assumed it didn’t do much other than send signals to an ECU type device.
What can I do to reduce boost? It has to be noted that one end of the turbo body to actuator pipe is lacking a clip so there is a chance it might be leaking. Could this be a reason for the over boost or do I perhaps have to block off the free ended second hose with a screw?
Engine: 1.9L TD (AAZ)
Year: 93-94
Model: KKK K03-003/96404
Oil cooled only
5303-970-0003
OEM No.: 028145701R
Engine Power: 75 bhp
Here are pictures of the turbo before it was fitted to the car.
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo2.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo1.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo3.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo5.jpg
I was also wondering if somebody has a part number for the gasket that goes between the top of the turbo and the exhaust manifold.
The aim is to run the car at a low boost level of 4.5 psi and I have believe I have wound the nut on the actuator arm to the maximum but I am still getting 10 psi of boost.
I was just seeking your more expert opinions on what might be wrong. I’ve discovered it’s a VAG turbo as fitted to old TD golfs. I was under the assumption you could turn a turbo down to 0 psi where necessary, does the K03 have a minimum level? Does anyone know what level of boost they run on a golf as standard?
The turbo actuator has 2 pipes leading from it. One leads to the turbo housing whilst the other hangs loose as I assumed it didn’t do much other than send signals to an ECU type device.
What can I do to reduce boost? It has to be noted that one end of the turbo body to actuator pipe is lacking a clip so there is a chance it might be leaking. Could this be a reason for the over boost or do I perhaps have to block off the free ended second hose with a screw?
Engine: 1.9L TD (AAZ)
Year: 93-94
Model: KKK K03-003/96404
Oil cooled only
5303-970-0003
OEM No.: 028145701R
Engine Power: 75 bhp
Here are pictures of the turbo before it was fitted to the car.
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo2.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo1.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo3.jpg
http://i78.photobucket.com/albums/j91/CaneyJ/Turbo/Turbo5.jpg
I was also wondering if somebody has a part number for the gasket that goes between the top of the turbo and the exhaust manifold.