I've been looking a lot lately into water injection after having a good chat with an engineer who is good mates with my mech. He pointed me in the direction of a video he made of an insane turbo cosworth that he and a co collaborator had designed a custom inlet manifold/plenum for. It is a centre feed log style plenum with internal trumpets and at the end of the log he used a site glass to film the water injection through. The water injection was only a 0.4mm nozzle postioned between the intercooler and throttle body. Have a watch - you won't believe the chaos in that plenum once the injection begins! I bet it'll scare a few people on here who run bigger and/or multiple nozzles.
https://www.youtube.com/watch?v=2PyWLE3gMw0
Then I found a couple of pre compressor injection vids. Both are pretty scary. One has a really good looking match between cone size and inducer diameter, the other looks a bit rudimentary with some water drips that look like they could kill blades and a cone that doesn't look like a good match for the inlet. Neither of the pre compressor vids put me off doing it but what did surprise me is the amount of water vapour blow back that runs far enough up the TIP on throttle cut to probably mess with the MAF.
https://www.youtube.com/watch?v=F51xymg33-w
https://www.youtube.com/watch?v=LO0MGrkEWzI
anyway, they're pretty interesting viewing.
sam
https://www.youtube.com/watch?v=2PyWLE3gMw0
Then I found a couple of pre compressor injection vids. Both are pretty scary. One has a really good looking match between cone size and inducer diameter, the other looks a bit rudimentary with some water drips that look like they could kill blades and a cone that doesn't look like a good match for the inlet. Neither of the pre compressor vids put me off doing it but what did surprise me is the amount of water vapour blow back that runs far enough up the TIP on throttle cut to probably mess with the MAF.
https://www.youtube.com/watch?v=F51xymg33-w
https://www.youtube.com/watch?v=LO0MGrkEWzI
anyway, they're pretty interesting viewing.
sam
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