Quote:
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Originally Posted by Richard L
Great care has to be taken in winter when you spray water/menthanol mix onto a large surface area of the rotor, it will freeze and ruin you S/C for good. It is better to disable this spray system in cold winters with sub-zero temperatures.
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Ooh, that's a failure mode I hadn't considered! So, if cooling from upstream fuel injection manages to pull the s/c rotor temperature below the freezing point of my WI mix, then the injected water might freeze inside the s/c when I come on boost. From the sound of it, that could be nasty! I think I will have to monitor the s/c temperatures while cruising with upstream fuelling enabled, and see whether the s/c temperature is getting low enough for this to be an issue. A water/antifreeze mix turns to mush rather than solid ice when it freezes; do you suppose this would still put the s/c at risk?