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How hot should a supercharger be to the touch when running normally (no boost)
I have custom installed and Eaton M112 from a ford Lightning on to a 5.0 explorer. I touched the supercharger after driving around. It was hot. I did not get burned. But I had to remove my hand after a second for fear of being scolded.
comparing the temperature of the SC to the radiator. The SC feels about 10 degrees warmer.
Doesn't matter if your in boost or not,, the supercharger is still spinning!
And it will be hot!
I know my blower is about the same after driving around. I can touch it , but only for a quick second.
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( Phil )2003 SuperCrew: JLP Built Lightning block/Stage 3 heads and cams.
L-conversion/Kenne Bell upgrade blower at 16PSI/BTS,4R100 tranny/100 shot nitrous.
594HP/620TQ Without the Nitrous 1.68 60' time/11.76 @ 116.17 with the 100 shot.
Join the the Delaware Chapter, HERE
Most of the heat you're feeling isn't from the friction of the spinning rotor pack, but heat soak from the engine itself. There is no compression taking place inside an Eaton supercharger like there is a Twin Screw. In which case, ACT’s are virtually unaffected when freewheeling with the bypass valve open. Remember, the blower case and manifold themselves are aluminum and transfer heat like a mo fo. Even if the blower wasn’t spinning at all, the case would still suffer from "heat soak" getting pistol hot in relevance to the temperature of the running engine.
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