[Richard L]

There are two complications that will make the conversion unsuitable:

1) The pressure of the existing system will not be high enough to give proper atomisation against manifold pressure under boost.

2) The water pump may be be reliable for continuous injection. Internal injection requires a more robust pump that will supply high operation cycles since the presence of water is more critical.

The existing water spraying system is well designed for external use, it has no less than 600 dyno hours spent on mapping the water, fuel, ignition, fuel grade, sensor interactions etc. It should be left un touched.

If you want to add an internal water injection, please refer to the other SRT-4 thread.