Looking for Water injection + Boost control
04-06-11, 04:57 PM
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Location: Edmonton, AB, Canada
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Looking for Water injection + Boost control
I'm looking for an integrated solution for boost control and water injection for the turbo rotary.
I'll be running the car in time attack and up to one hour long races at the 450 rwhp range. I run slicks, so the g-loads are pretty high.
My goals:
Fail-safe system - run high boost (19 PSI +/-) while water injection is functional
Drop to wastegate spring only boost (14 psi) when the water runs out or the system breaks
A system which provides water in a progressive manner and with good dispersion characteristics
I'll attempt to fab up a surge style system inside the a cheap jaz cell to ensure the g-loads don't affect the water supply to the pump
Since it appears the FJO system was pretty much what I was after and it is no longer available, what are my options?
I've thought about trying a setup similar to a fuel system using small fuel injectors running piggyback off the secondary injectors, wired in with a boost switch to start injection at 12 PSI. It would be roughly tunable with a pressure regulator to control gross flow, with the secondary signal hopefully moderating the amounts to match the engine needs. I run a Microtech LT-8 so I'm a bit concerned with splicing in additional injectors which will run only part of the time. And then have an electronic boost controller which runs off a pressure sensor in the water line, cutting the boost controller if there is a drop in water pressure below a threshold value.
Honestly, I'm lazy and if I can buy an integrated solution I'd prefer it as to not have to build everything, but I really liked the FJO injector model and the idea of boost control linked to the WI system.
TIA
-Trent
I'll be running the car in time attack and up to one hour long races at the 450 rwhp range. I run slicks, so the g-loads are pretty high.
My goals:
Fail-safe system - run high boost (19 PSI +/-) while water injection is functional
Drop to wastegate spring only boost (14 psi) when the water runs out or the system breaks
A system which provides water in a progressive manner and with good dispersion characteristics
I'll attempt to fab up a surge style system inside the a cheap jaz cell to ensure the g-loads don't affect the water supply to the pump
Since it appears the FJO system was pretty much what I was after and it is no longer available, what are my options?
I've thought about trying a setup similar to a fuel system using small fuel injectors running piggyback off the secondary injectors, wired in with a boost switch to start injection at 12 PSI. It would be roughly tunable with a pressure regulator to control gross flow, with the secondary signal hopefully moderating the amounts to match the engine needs. I run a Microtech LT-8 so I'm a bit concerned with splicing in additional injectors which will run only part of the time. And then have an electronic boost controller which runs off a pressure sensor in the water line, cutting the boost controller if there is a drop in water pressure below a threshold value.
Honestly, I'm lazy and if I can buy an integrated solution I'd prefer it as to not have to build everything, but I really liked the FJO injector model and the idea of boost control linked to the WI system.
TIA
-Trent
