Supercharger

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I put an aftermarket Vortech supercharger on my 5.0 Mustang years ago. It had a pressurized oil feed line with a drain line back to the pan.
 
Originally Posted by KevGuy
Do superchargers need lubrication and cooling just as turbos?

They are lubricated, and if you mean charge air cooling, then yes to that as well.
 
Originally Posted by jkasch
Most OEM and aftermarket Eaton and twin-screw SCs have permanently sealed bearings, these days.

How reliable are these sealed bearings ?
 
Originally Posted by jkasch
Most OEM and aftermarket Eaton and twin-screw SCs have permanently sealed bearings, these days.

Yes, but are their gearboxes?

The Hellcat, and Audi 3.0 both have serviceable superchargers. Is there anything more recent?

Originally Posted by slacktide_bitog
GM also lets you use M1 5w30 for the supercharger oil
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Mobil AGL or ZFN-L-3001 are perfect as well, if you happen to have convenient access.
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Originally Posted by Mr Nice
Originally Posted by jkasch
Most OEM and aftermarket Eaton and twin-screw SCs have permanently sealed bearings, these days.

How reliable are these sealed bearings ?



Honestly, meh. A lot comes from people never servicing them which leads to failures. One of the pages on FB I follow is a Saleen specialist, but also does a lot of servicing on other roots/twin screw style superchargers. A little money and time spent changing fluid goes a long way. Also they recommend at some point sending them in for a basic refresh like you would do any racing part component.
 
Originally Posted by rooflessVW
Originally Posted by jkasch
Most OEM and aftermarket Eaton and twin-screw SCs have permanently sealed bearings, these days.

Yes, but are their gearboxes?

Yes.

The Hellcat, and Audi 3.0 both have serviceable superchargers. Is there anything more recent?

Originally Posted by slacktide_bitog
GM also lets you use M1 5w30 for the supercharger oil
smile.gif


Mobil AGL or ZFN-L-3001 are perfect as well, if you happen to have convenient access.
wink.gif



Neither my Hellcat, nor the Magnuson TVS that I installed on my '04 GTO, have/had any way to change or add oil. Dodge had an early ('15-'16) batch of twin-screw IHI SCs with bad bearings. They were replaced under warranty rather than repaired or serviced. '15 Hellcats were warranted for a 100,000. '16 and later have 60,000 mile warranties.
 
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Originally Posted by rooflessVW

Mobil AGL or ZFN-L-3001 are perfect as well, if you happen to have convenient access.
wink.gif



Yeah, but they cost a little more
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Superchargers used to be part of the motor case and were lubricated by the motor oil, when this became too expensive they made the add-on supercharger, but I don't know if they have their own reservoir or if there is a motor oil diversion to lubricate it.
Mind boggles at a Volvo with both
crazy.gif
 
Originally Posted by Pelican
Superchargers used to be part of the motor case and were lubricated by the motor oil, when this became too expensive they made the add-on supercharger, but I don't know if they have their own reservoir or if there is a motor oil diversion to lubricate it.
Mind boggles at a Volvo with both
crazy.gif



It all depends. Your typical roots or twin screw like an Eaton, Kenne Bell, Magnuson, Edelbrock, or Whipple have their own reservoir. Up until recently Procharger was the only centrifugal supercharger to have its own reservoir while the others had feed and drain lines. However I think I have seen some Vortech units with self contained reservoirs.
 
Turbochargers have an inter cooler after the compressor. Superchargers may or may not have a cooler after the compressor.

After cooling the combustion air, are we concerned about water/condensation being produced and causing problems In the combustion chamber ?
 
Originally Posted by KevGuy
Turbochargers have an inter cooler after the compressor. Superchargers may or may not have a cooler after the compressor.

After cooling the combustion air, are we concerned about water/condensation being produced and causing problems In the combustion chamber ?


No. Superchargers and turbochargers generate a lot of heat on their own. The purpose of intercoolers are to prevent high intake air temperatures that reduce air density and cause ECUs to pull timing and reduce hp. If cold intake air temps were a problem, naturally aspirated engines would be at risk in cold weather, as well.
 
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