Eaton M-90 Blown Stock 12A Project...
Thread Starter
Nikki-Modder Rex-Rodder
Joined: Feb 2001
Posts: 2,890
Likes: 14
From: Trying to convince some clown not to put a Holley 600 on his 12a.
Update...
Started surgery on the blower. First, I removed the housing, and then used the bolts along with nuts and plastic washers, to keep assembled the gear housing. I did not break the seal, and no oil leaked out.
I studies the rotors, and was very pleased to see very little wear. However, I think the guy that rebuilt it is a jack-*** for having spray painted them black!!!! Though the paint was somewhat tacky in spots, the was a very small area where it had flaked off, exposing a very smooth finish underneath-a baked-on paint, metalic grey. I think it might contain teflon. It is very smooth, and I used all of my wife nail polish remover to get rid of the black spray paint.
What a pain in the ***! This was NOT something I wanted running through my engine!
But before I cleaned the rotors, I took the 'ole hacksaw to the backend of the housing. I removed the GM cast intake because it simply is'nt going to fit easily in my engine compartment. I will fab a much better-for-my-needs intake and bolt it to the housing with a seal in between. I hacked off about 4.5 inches, and I now need to mill the rest for a perfect surface.
But as I was inhaling nail polish remover fumes for about two hours of paint removal, I came to realize that thew dimensions of the rotors were quite smal.
Hmmm...small indeed!
I went back to the Eaton site, and it gives the dimensions for the blowers.
Apparently, I have the M-62 model.
The M-90 is used on the Ford Thunderbird 3,8s, and this blower came off a Pontiac Bonneville, which as I understand it, also has a 3.8.
Anyway, the Eaton M-90 is a 1.5 liter displacement blower, and mine is a 1 liter.
Does anyone think I'll have a problem generating 10 psi of boost? It redlines at 14K.
Started surgery on the blower. First, I removed the housing, and then used the bolts along with nuts and plastic washers, to keep assembled the gear housing. I did not break the seal, and no oil leaked out.
I studies the rotors, and was very pleased to see very little wear. However, I think the guy that rebuilt it is a jack-*** for having spray painted them black!!!! Though the paint was somewhat tacky in spots, the was a very small area where it had flaked off, exposing a very smooth finish underneath-a baked-on paint, metalic grey. I think it might contain teflon. It is very smooth, and I used all of my wife nail polish remover to get rid of the black spray paint.
What a pain in the ***! This was NOT something I wanted running through my engine!
But before I cleaned the rotors, I took the 'ole hacksaw to the backend of the housing. I removed the GM cast intake because it simply is'nt going to fit easily in my engine compartment. I will fab a much better-for-my-needs intake and bolt it to the housing with a seal in between. I hacked off about 4.5 inches, and I now need to mill the rest for a perfect surface.
But as I was inhaling nail polish remover fumes for about two hours of paint removal, I came to realize that thew dimensions of the rotors were quite smal.
Hmmm...small indeed!
I went back to the Eaton site, and it gives the dimensions for the blowers.
Apparently, I have the M-62 model.
The M-90 is used on the Ford Thunderbird 3,8s, and this blower came off a Pontiac Bonneville, which as I understand it, also has a 3.8.
Anyway, the Eaton M-90 is a 1.5 liter displacement blower, and mine is a 1 liter.
Does anyone think I'll have a problem generating 10 psi of boost? It redlines at 14K.
Senior Member
Joined: Mar 2001
Posts: 255
Likes: 0
From: Springfield, Missouri USA
I'd just gear the charger to spin whatever it would have spun at redline on the 3.8 at redline on your car. See what happens.
The M80's really are cheap to come by, and CERTAINLY will make some power. I'd venture that 300hp would be pushing the smaller one, whereas 400 happens all the time with the bigger one. Will have to share my numbers when I m80 my 12A.
Of course, if you go looking for another charger, the M112 is getting more common. :-) Underdrive that thing to make 4-6psi and add a nice big turbo, you could run at least 2-3 sizes larger on the turbine side and still spool it well. Dial the WG in for 15-18psi max boost and it should be killer on the street.....
Anything ELSE we can throw in to weigh the front of the car down? :-)
R
The M80's really are cheap to come by, and CERTAINLY will make some power. I'd venture that 300hp would be pushing the smaller one, whereas 400 happens all the time with the bigger one. Will have to share my numbers when I m80 my 12A.
Of course, if you go looking for another charger, the M112 is getting more common. :-) Underdrive that thing to make 4-6psi and add a nice big turbo, you could run at least 2-3 sizes larger on the turbine side and still spool it well. Dial the WG in for 15-18psi max boost and it should be killer on the street.....
Anything ELSE we can throw in to weigh the front of the car down? :-)
R
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