the dark one
New member
- Joined
- Dec 7, 2012
- Messages
- 13
Theres plenty written on here about the smaller Holset VGTs, but how about the larger variants...
My application is a dedicted competition puller; 6.6L, mechanical fuelling, 5k redline, single charger. I have a HE531V which I am going to use, and wondered if anyone had and experience or thoughts?
My main concern is suspending such a heavy lump (25kg) on an exhaust manifold!
Also, Im thinking about simple, reliable control, and am going to use a wastegate actuator controlled by intake boost. The initial position will be closed, and boost will open the vanes right up. I cant decide whether to set the actuator low (c.1bar) so that it opens quickly, or high (c. 3bar) so that it opens progressively... I would put screw stops at each end of the travel to give me the option to limit the vane transition.
My main aim is that the engine builds boost sooner,.so that I can lower the stall speed of my centrifugal clutch and keep the power flowing when she's dragged to her knees at the top end....
My application is a dedicted competition puller; 6.6L, mechanical fuelling, 5k redline, single charger. I have a HE531V which I am going to use, and wondered if anyone had and experience or thoughts?
My main concern is suspending such a heavy lump (25kg) on an exhaust manifold!
Also, Im thinking about simple, reliable control, and am going to use a wastegate actuator controlled by intake boost. The initial position will be closed, and boost will open the vanes right up. I cant decide whether to set the actuator low (c.1bar) so that it opens quickly, or high (c. 3bar) so that it opens progressively... I would put screw stops at each end of the travel to give me the option to limit the vane transition.
My main aim is that the engine builds boost sooner,.so that I can lower the stall speed of my centrifugal clutch and keep the power flowing when she's dragged to her knees at the top end....