GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat - Split from "epoxy coating on supercharger"

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Correctamundo, to my fellow expertdude.

The Gen2 horizontal line about 0.4" JUST TO THE LEFT of the ruler.
The Gen3 horizontal line JUST TO THE RIGHT of the ruler.

The superchargers are rotated to have this 'foot' on each next to each other, as you see in the SECOND pic above.

Attachment 56733

The ruler is not touching the same spot on both.

Quote:

Originally Posted by J Wikoff

The ruler is not touching the same spot on both.

bingo.. bill.. take 2 identical pics, and ill layer em on top of eachother to show the difference

u drinking? :lol:

I'm drinking. John and Andrew are right. :lol:

Compare the height of the Gen2 JUST TO THE LEFT OF THE RULER to the height of the Gen3 at the FAR RIGHT OF THE PIC.

Fuck you guys.

Or... just to the right of the ruler and far to the left of the ruler (it gets a little fuzzy to the left).

Quote:

Originally Posted by J Wikoff

Or... just to the right of the ruler and far to the left of the ruler (it gets a little fuzzy to the left).

Now those are great pictures and great info for people looking to see differences in both the 92/93 vs 94/95 superchargers. I still dont understand how the dealership adopted this 94/95 to my 1993 ssei. The one that has the long finned caseing is in my car and the one that I have sitting on my shelves next to my tool box looks like the caseing goes half way (I guess that is the one that orginally came with my car) in which the dealership gave back to me. Do you think that they changed the top end of my engine to a 1994/95. Like the LIM, TB, PCM, EGR and all the sensors? to make it all work.

Quote:

Originally Posted by willwren

The definitive identification guide for Gen2 (92/93) and Gen3 (94/95) M62 Eaton Superchargers:

This is the 'foot' directly BEHIND the throttle body/inlet when facing the engine from the front. Measure the height. On the left is the Gen2 (92/93) on the right is the Gen3 (94/95):
https://i14.photobucket.com/albums/a...n/compare1.jpg

Now the cooling fins. Notice how the Gen2 (92/93) fins on the LEFT supercharger extend all the way to the base? And the Gen3 (94/95) go only partway down:
https://i14.photobucket.com/albums/a...n/compare2.jpg

Inlet comparison with the Gen2 (92/93) on the left and Gen3 (94/95) on the right:
https://i14.photobucket.com/albums/a...n/compare3.jpg

The other telltale sign is the EGR inlet port. The Gen2 (92/93) is 0.5", and the Gen3 (94/95) is .625" (5/8").

Now which one do you have?

From the looks of the back end of the superchargers. The one on the left is the same as my supercharger with the long fins and is the same as the one with the fins that go halfway. Both my superchargers have the same back end that bolts to the TB. But none of the 2 that I have look anything on the right of your picture. Due to the fact of the small hole next to the Inlet of the TB and that TB looks alot larger then both of which I have. The small hole next to the TB on your picture is for the 94/95, but on Both of my Superchargers they are larger like the one on the left of your picture and I do have both caseings one that has the fins that go halfway and one that goes all they way down, like on these pictures you have. I'am so confused now. Do I have a hybrid supercharger on my hands for a later 1993 that is the same as 1994?

Quote:

Originally Posted by bigbadbonneville

The one that has the long finned caseing is in my car and the one that I have sitting on my shelves next to my tool box looks like the caseing goes half way, which the dealership gave back to me.

If this statement is correct, the casing with fins all the way down (92/93) is on your car, and the (94/95) casing with fins only partway is on your shelf.

This means your car has the 92/93 supercharger and throttle body on it. Which would allow it to run and function properly with the current PCM.

Quote:

Originally Posted by willwren

Now the cooling fins. Notice how the Gen2 (92/93) fins on the LEFT supercharger extend all the way to the base? And the Gen3 (94/95) go only partway down:
https://i14.photobucket.com/albums/a...n/compare2.jpg

Correct. Your dealership misinformed you, and you actually have the correct part on your car. Unless you can call the dealer and have them look up the ticket on the repair for a better description, we may never understand the misunderstanding.

Quote:

Originally Posted by bigbadbonneville

Quote:

Originally Posted by willwren

The definitive identification guide for Gen2 (92/93) and Gen3 (94/95) M62 Eaton Superchargers:

This is the 'foot' directly BEHIND the throttle body/inlet when facing the engine from the front. Measure the height. On the left is the Gen2 (92/93) on the right is the Gen3 (94/95):
http://i14.photobucket.com/albums/a3...n/compare1.jpg

Now the cooling fins. Notice how the Gen2 (92/93) fins on the LEFT supercharger extend all the way to the base? And the Gen3 (94/95) go only partway down:
http://i14.photobucket.com/albums/a3...n/compare2.jpg

Inlet comparison with the Gen2 (92/93) on the left and Gen3 (94/95) on the right:
http://i14.photobucket.com/albums/a3...n/compare3.jpg isnt the one on the left the 94/95 and the one on the right is the 92/93, The question I have is the TB Opening is larger on a 92/93 or is the opening for the TB Larger on the 94/95.

The other telltale sign is the EGR inlet port. The Gen2 (92/93) is 0.5", and the Gen3 (94/95) is .625" (5/8").

Now which one do you have?