M62 Supercharger Info

From pontiacbonnevilleclub.com:

Specs for the Eaton M62 Supercharger

**all revs listed are SC revs**

M62 Max boost:
10psi/460cfm @ 14000 rpms

M62 hp gain:
7hp @ 4000 rpms, 36hp @ 14000 rpms

M62 Operating temperature:
135° @ 4000 rpms, 180° @ 14000 rpms

very nice thanks.

I would like to bypass the supercharger if I could get the smaller belt size I would appreciate it. Thanks Don

[quote="1995 Riv"]I would like to bypass the supercharger if I could get the smaller belt size I would appreciate it. [quote]

no need to bypass it.. take it off!!! shoot wait you have a 95.. i believe they have one belt... hmm what bearing failed in your supercharger?? coupler?

look here for parts to fix your supercharger, this is where I got my parts.

http://darossillc.com/

Albertj

Coupler shaft loose in end housing I don't have time to fix supercharger now.

I admit that I don't know what size belt to use to bypass the blower - but I think you may be able to find out from an independent mechanic. I don't know any 'gearheads' who can answer that right now.

If it was my problem to solve I would take a piece of masons' twine (which usually is not twine at all but nylon cord) and with the belts all on (so the tensioners are in the right place and at the right tension) and the engine off, run it along the belt path you best estimate should be used by the smaller belt (so you don't end up spinning any pulleys backward, natch) and tie it on so that the string now goes the path you want the belt to go, and the tensioners are all in their right stations and places. That ought to get you within an inch or so. Then I'd go to an older-line parts place - a NAPA or CarQuest franchise probably - with my string, tell them exactly what I was doing (bypassing the blower until I can fix it) and that I think I need a belt this long (give them the string). They should have a Gates or Dayco gauge to measure the string loop that will tell what belt matches. They should be able to provide you a belt within an inch or so, and I suspect it will not be the same one as for the NA 3800 engine becuase the accessories are in different places on the SC engine. Anyway - the spec for the belt will tell you how long it is for future reference (or heck just write it in your owners' manual).

As for the blower, you have choiced. If you have access to an arbor press (hopefully a hydraulic one) you can replace all the bearings and stuff yourself. If not, you can buy a rebuilt snout for less than $200 and put it on yourslef. You might want to get a rebuilt supercharger they are usually under $350; check eBay. If "coupler shaft loose in end housing" means the shaft is loose on the turning axis only, then you most likely do not need new bearings - just a coupler. Couplers are less than $20; you'll need oil and some other stuff that ~doubles the out-of-pocket to $40 or so. If you meant that the supercharger drive shaft moves in-out of the nose, or has play at a normal angle to the snout (instead of just being uncoupled when turning) then you probly need to replace the bearings. In that case the problem is you might need the needle bearings not just the shaft bearings. The site I posted (darossillc.com) is the first place I think of for the coupler and bearings.

Albertj

Call this company they gave me a price for something like $400 -500 for a rebuilt SC 405-844-2776 forgot the name of the company

from: link

Hometown Hero wrote:

My new M62 had the teflon stripped during the reman process. I can compensate by dropping another pulley size, and since the is no coating I can run meth without much trouble.

I've got a simple question on the Reman of the SC.
What else do they do to Re-manufacture the SC besides having to remove the coating from the Rotors and replace all bearings.?

What company did you have rebuild your SC.?????

Do they do any blending of the rotor blades to remove any nicks or scratches and do they do any machining of the internal's of the SC.?
Such as blending any imperfections from the I.D. Bore ?

How much clearance does that provide now in thousandth's of an inch.?
How many thousands are removed between the rotor tips and the SC chambers.????

They are saying that the "fix" to this is to simply reduce the SC Pulley size to make up for it.??
How much do they recommend, in reduction of pulley drive diameter to counteract the removal of coating.?

If there is a formula of how many thousandth's of an inch internally translates to how many Tenth's of an inch pulley size, I would be very interested.

Thanks,
Rick

Well, thats actually 8 questions Rick but what the heck.

I didn't have a "company" rebuild my SC. I simply bought a reman SC through work at my cost (CHEAP) through Cardone Select. Saves me pulling mine and doing the work myself. This way when I pull mine I can put the new 1 on and rebuild my old 1 as a spare, or sell it.

Karma is currently working on PPing my remanned SC and an LIM, when I get it back it will be putting on a 2.4" and replacing the stock 1 that has the 2.5". The PP will make it again easier to drop a pulley size, Karmas project of blocking off the silencer holes is supposed to give 1 pound as well. As of Monday I have Yella Terra 1.8:1 roller rockers on the way as we speak, then a Devils Own injection kit will be next.

Everything will go together in 1 swipe, so it should be complete within a few months, but for now I can enjoy driving it until I get everything in my hands.

As for their reman process, I don't think its all that complex, I'm pretty sure alot of the SC cores they get aren't in GOD AWEFUL condition or anything. Mine on the car atm for example would prolly just need bearings and a coupler and maybe a good cleaning. I just thought its more fun and easier to mod stuff that is off the car, but at the same being able to enjoy the car while doing so is icing on the cake.

Sorry if I didn't answer all your questions...Oh and Rick, I still gotcha down for that gauge bezel, I haven't forgotton, I bought the plastic to make a template for them to use, now all I need is some spare time.(I'll shoot you a PM as things progress)