V8 Dump valves (blow off valves)

[jaldo]

1998 Esprit V8. I recently installed a couple of Forge blow off valves (15-23 psi) ,The valves don't vent when revving up the engine.I had already change the springs (rated at 23-30 psi) since nothing was happening. Do I need to disconnect the wastegate valves for the dump valves to work? The engine runs perfectly,no issues with the factory turbos.

[v8GTmac1]

You need to go lower on spring pressure LoL. 918 is rated at 11 when all is running good. I’m still tuck at 4.7ish

Edited March 14, 2020 by v8GTmac1

[jaldo]

On 14/03/2020 at 10:44, v8GTmac1 said:

You need to go lower on spring pressure LoL. 918 is rated at 11 when all is running good. I’m still tuck at 4.7ish

Update: 

I installed 5 - 11 psi springs and they work beautifully. 

[tmusc]

Can you tell me which blow off valves you got (model number from forge)

[jaldo]

I got them from PNM:

https://www.pnmparts.co.uk/dump-valve-kit-v8-8928