Wrayza
New Member
- Joined
- Feb 3, 2006
- Messages
- 105
- Reaction score
- 2
- Points
- 0
- Age
- 36
- Members Ride
- VK Calais
Ok so a bit has happened since I was last on here...
The first task was to sort out the BOV/CBV problem, I ended up using a BOV initially because of availability and cost of Bosch CBV's. I worked out where I wanted the valve to sit in the intake piping and got it all ready for a mate to weld, then borrowed his BOV to see how things went (cheers again mate!).
The BOV seemed to be working as it should, venting the pressure in the piping before the throttle body at idle, as well as opening to vent pressure between gear changes. The only problem was the thing was bloody loud as being a small 25mm diam BOV and not yet plumbed back, so I did the only thing a bloke could do, I went and got a 2nd BOV that was identical and welded on another pipe for it.
Finally I had a silent way to vent the pressure, and its still not plumbed back so it can only get better!
As for boost, I was making 4psi on the 8psi pulley during the 38deg heat we had, not bad I thought. I later found the older of the two BOV's leaks slightly.
So today while waiting to get caps for the bigger injectors I pulled off the intake manifold to renew the gasket and check the TB gasket for leaks, also decided that it was a good oppertunity to polish/paint a few bits and put on the new manifold.
Heres a link to the 4psi test run and some recent pictures.
YouTube - Blown VK 4psi Test
The first task was to sort out the BOV/CBV problem, I ended up using a BOV initially because of availability and cost of Bosch CBV's. I worked out where I wanted the valve to sit in the intake piping and got it all ready for a mate to weld, then borrowed his BOV to see how things went (cheers again mate!).
The BOV seemed to be working as it should, venting the pressure in the piping before the throttle body at idle, as well as opening to vent pressure between gear changes. The only problem was the thing was bloody loud as being a small 25mm diam BOV and not yet plumbed back, so I did the only thing a bloke could do, I went and got a 2nd BOV that was identical and welded on another pipe for it.
Finally I had a silent way to vent the pressure, and its still not plumbed back so it can only get better!
As for boost, I was making 4psi on the 8psi pulley during the 38deg heat we had, not bad I thought. I later found the older of the two BOV's leaks slightly.
So today while waiting to get caps for the bigger injectors I pulled off the intake manifold to renew the gasket and check the TB gasket for leaks, also decided that it was a good oppertunity to polish/paint a few bits and put on the new manifold.
Heres a link to the 4psi test run and some recent pictures.
YouTube - Blown VK 4psi Test