I have an FJ20et HKS cast iron high mount turbo manifold and concerns have been raised about it's capability to control boost due to the position of the external wastegate. I have an TIAL 41mm sportgate going onto it and in the process of modifying the wastegate flange to suit, this concern was raised.
Question is; has anyone used this manifold and experienced a problem with over boost, or does the external wastegate position work?
Any help or assistance with this issue would be appreciated.
Thanks in advance,
If the left lane can go past the right lane, their in the WRONG lane