Finally got around to installing most of my water injection system over the weekend and initial results were better than expected. On my small test hill around the corner from home I usually can get it to 650 degrees C (pre-turbo) by the top but with the nozzles at the manifold switched on I struggled to get to 500. Currently injection straight water only 2 x nozzles totalling 660cc/min at 1400psi but plan to also have 400cc/min injected pre-turbo. Still waiting on the last of my parts to arrive as the pre-turbo nozzles are controlled by solenoids and it's taken some time sourcing required parts to handle the higher than usual pressures my system will be running.
I was initially looking at the usual kits you see out there like Snow, AEM, coolingmist etc but no one offered a kit that had exactly what I was after so made my own. One of my key requirements was a pump that could be serviceable and also be self priming which lead me to choosing a Pumptec 113c positive displacement pump. It's only rated to a continuous 1200psi but in my testing i've had it well over 2000psi and it's still going lol. Most of my system is all pressure rated to 2500psi which has been a bit challenging to source parts for but it was doable and so far in my very little testing holding up well. I may have to change out some sections of the high pressure semi-rigid tubing to solid copper to limited the amount it moves and vibrates while injecting but time will tell.
Hope to have pre-turbo going in the next week or so and once setup to my liking i'll do a dyno run with and without injection to see if there's any change other than the EGT which has already dropped massively. Some pics below of setup
I was initially looking at the usual kits you see out there like Snow, AEM, coolingmist etc but no one offered a kit that had exactly what I was after so made my own. One of my key requirements was a pump that could be serviceable and also be self priming which lead me to choosing a Pumptec 113c positive displacement pump. It's only rated to a continuous 1200psi but in my testing i've had it well over 2000psi and it's still going lol. Most of my system is all pressure rated to 2500psi which has been a bit challenging to source parts for but it was doable and so far in my very little testing holding up well. I may have to change out some sections of the high pressure semi-rigid tubing to solid copper to limited the amount it moves and vibrates while injecting but time will tell.
Hope to have pre-turbo going in the next week or so and once setup to my liking i'll do a dyno run with and without injection to see if there's any change other than the EGT which has already dropped massively. Some pics below of setup
Surprised it actually lasted as long as it did. Sourcing correct parts today so hopefully back to more testing this weekend.
