Real Fiero Tech

I am curious as to the mounting positions available for the Eaton blowers.

Is it possible to mount them on their side (against the side of the block instead of on top)?

I assume the oiling in them is just splash oiling but I have not had one apart.

Is there a vent that will allow oil to leak or is the nose sealed?

Thanks,
Gene

AFAIK, it's all sealed. A version of the M62 is mounted on its side in the Cobalt SS's.

yes it can be mounted on the side the m90 can also which is found on the thunderbirds . and on certin mustangs

The one I will be using is off a Thunderbird. The inlet and outlet setup work better for what I have I have in mind. It will allow me to mount it on the side of the block instead of building a custom intake that still may not fit under the decklid.

Thanks,
Gene

There has been a lot of talk on Neverland of members with 4.9's or any other engine doing this mod. Of course it never goes anywhere. I would really like to actually see someone do it.

I would like to say it was going on the 4.9, but I am about done fooling with it. Maybe a little more tinkering and tuning including the chassis is all I have in store for it. I would like to get it down to a solid and repeatable 13.5 in the quarter with the 4T60E auto. Then I will drive it every day and autocross it on weekends.

No this will be on a modern 4 valve engine.
Pics will be coming soon.

Gene

F8I6EgRtO wrote:yes it can be mounted on the side the m90 can also which is found on the thunderbirds . and on certin mustangs

I don't believe any Mustang ever came from the factory with an M90 supercharger, correct me if I'm wrong.

The newest Cobras had a M112 atop a 4.6l DOHC, but that is FAR different than the global warming radiant heater that is the SuperCoupe M90. I say go for it, but I'd use the M90 from a Grand Prix (Newer, much more efficient, closer tolerances, more aftermarket, and still cheap).

The last year Supercoupe had a much improved M90.

The advantage to me for the Thunderbird Sc is the discharge on top of the SC which will feed to the intercooler and the intercooler will feed right into the rear of the stock intake.

Gene

Aaron wrote:

F8I6EgRtO wrote:yes it can be mounted on the side the m90 can also which is found on the thunderbirds . and on certin mustangs

I don't believe any Mustang ever came from the factory with an M90 supercharger, correct me if I'm wrong.

The newest Cobras had a M112 atop a 4.6l DOHC, but that is FAR different than the global warming radiant heater that is the SuperCoupe M90. I say go for it, but I'd use the M90 from a Grand Prix (Newer, much more efficient, closer tolerances, more aftermarket, and still cheap).

the m90 on the super coupe was designed to be used on many different engines as large as a 5.0 mustang engine . which if you look there is an adaptor kit that alot of people are useing to take them from the t-tird and put them on there stang.

Wow, that must be sized perfectly...

scrabblegod wrote:I am curious as to the mounting positions available for the Eaton blowers.

Is it possible to mount them on their side (against the side of the block instead of on top)?

I assume the oiling in them is just splash oiling but I have not had one apart.

Is there a vent that will allow oil to leak or is the nose sealed?

Thanks,
Gene

The GM M90's have a vent in the nose I believe, so just don't mount it nose down. I don't think it matters if you rotate it. I saw one mounted to a bracket, driven by a starter motor. They had a seperate battery to drive the starter.

So are you going to decompress your motor or run less boost?

EBSB52 wrote: So are you going to decompress your motor or run less boost?

I am lowering the compression.
If you go to the Aurora SC thread here in tech, it gives the details.

Gene

scrabblegod wrote:

EBSB52 wrote: So are you going to decompress your motor or run less boost?

I am lowering the compression.
If you go to the Aurora SC thread here in tech, it gives the details.

Gene

Sweet and you're going to run a tube from the bottom of the SC to the intake? As for the breather, the nut at the front of the pulley is the breather.

http://cgi.ebay.com/ebaymotors/GM-Eaton ... enameZWD1V

Just keep it level and prefferably transvers to the car and you should be OK. Also, there is a special fluid to run in there, takes 2 botttles. And the couplers chatter, so to replace it b4 you install it would be good. A total rebuild with bearings would cost <150.

I'd suggest something more than an M90 if you're going to be supercharging an Aurora engine.

EBSB52 wrote: Sweet and you're going to run a tube from the bottom of the SC to the intake? As for the breather, the nut at the front of the pulley is the breather.

On the Thunderbird SC, the air discharge is out the top through a tube to the intercooler.
It will go from there to the intake.

I have not decided on the location for the intercooler or if it will be air to air or air to water.

Gene

The Dark Side of Will wrote:I'd suggest something more than an M90 if you're going to be supercharging an Aurora engine.

Nah, a 112 wouldn't be that much more efficient. You could turn it slower to keep the air cooler. I would do a 90 with an intercooler if I had the $$$ for that application.

i have an m90 now :thumbleft:

M90 on an aurora? It's barely big enough for a 3.4 DOHC.

EBSB52 wrote: And the couplers chatter, so to replace it b4 you install it would be good. A total rebuild with bearings would cost <150.

Here is the coupler I use. A friend cranks them out on a CNC. The bearings I buy at the local bearing supplier.



Gene

Series8217 wrote:M90 on an aurora? It's barely big enough for a 3.4 DOHC.

Yet if you go to the Eaton site, they state it is for engines displacing 3.0-5.0 liters.
They rate the M62 for 2.5-4.0 liter engines and the M90 flows 50% more per revolution.

Gene