Quote:
Originally Posted by sw20kosh
Directly before the supercharger rotors. This was recommended by someone who has been meth injecting positive displacement superchargers for decades.
If you inject pre supercharger you:
1. Can inject 3-4 times as much as the rotors further help to atomize the fluid and the rotors actually take up a fair bit of fluid as they have large surface area compared to centri compressors on turbo and centri sc.
2. You cool off the hot rotors significantly increasing their efficiency (heat kills efficiency)
3. You soft-seal the rotors to each other allowing them to be more efficient at producing boost. You can typically gain up to 1-2 psi depending on application whereas with an intercooler you typically lose psi due to pressure drop across the intercooler.
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Now I remember seeing it back a few pages... Yeah you're cooling the rotors, cooling the charge, and effectively adding octane. No doubt it's effective. I wonder if all the concern about rusted/pitted rotors is just internet BS, like so much other crap we hear on forums every day...