Originally Posted by
copgtp
A root style Eaton blower doesn't compress air nearly as much as a twin screw blower................so for you to tell me I don't even know what I'm talking about, and then say something like that, is complete hypocrisy.
Now I'm a hypocrit. But below you say I'm right. lol.
But you're right, most of the heat that is generated is from the "compressing of air" and the two rotors spinning (exactly what I already said)........... So how is cooling a supercharger snout.........a piece that is totally isolated from the rotors, something that is going to increase efficiency??? You typically see higher temperatures by the snout because it is at the opposite end of the air intake..........therefore isn't being introduced to fresh, cooler air like the TB side of the blower. Yea, some heat is definitely generated by the snout, but not nearly enough to say a snout cooler is necessary. Many of us running full core intercoolers have superchargers that are "cool to the touch" after spirited driving.
Exactly what I said, hypocritically.
You shouldn't throw statements like " adiabatic efficiency" around if you don't know how to spell them..........or how it relates to the M90 roots supercharger we have on our platform. You see, adiabatic efficiency correlates directly with how much work a compressor has to do to compress air to a specific point. Only problem with your logic is the M90 roots supercharger does NOT do that much compressing!! Unlike a twin screw supercharger or a centrifugal supercharger, the amount of compression that is generated is minimal. Actually, the roots style blower is by far the least efficient type available. Cooling the snout will not increase efficiency of the blower..............
Uhmm, my spelling is correct (same as you used ) and I do understand the term. And let me explain it too you on some simple terms. When you say that "the roots style blower is by far the least efficient type available" I'm assuming your talking about "adiabatic efficiency". That means for the volume of air compressed the roots will heat the incoming air charge the most.
So, Why do I need a snout cooler? Some people make the point that cooling that area will increase the efficiency of the bearings and coupler, therefore increasing their life span......I've only heard of a handful of snout bearing failures because of fatigue (a lot of bearing failure is because of improper pulley installation / removal), and I've NEVER heard of a supercharger coupler failure because of high heat and fatigue............
You don't need a snout cooler. Don't buy one!
Eaton Corp makes around 4 million superchargers a year (fact). I'm sure in all your vast experience that these "handfull of snout bearing failures" (I like to call em "front drives" just sounds more "techy" lol) are the preverbial drop in the bucket.
