Re: Injecting prior to turbo comp' impellers
You will be able to see whether or not if you need the post turbo injectors by disconnecting it and going for a drive and logging everything.
Rice racing on here will be able to give any advice about pre turbo injection as he's been running that for a while on his rx7. He uses a water/methanol blend 50/50 by weight iirc injected preturbo. He is running up to 35psi on his T04Z which is prety much the turbos limit without overspeeding it.
You may also want to try moving the pre turbo injector further away from the turbo so that the atomised water can help cool the air being sucked in even more. That is If you have the space.
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