Rick Carter

IIRC the Thunderbird uses an M90 not M112; the 2003/2004 Cobras use an M112 and are sometimes for sale when they are replaced by a twin screw. The Cobra M112 has the blower inlet on the side and not back like the Jaguar M112.

heinrich

Cobalt went and picked up the supercharger for me on Saturday and he says it is in great shape thank you Anthony!!!

Fabio421

I thought this was a twin screw.

Tony

There are ROOTS and Twinscrews...commonly mixed up. Its how the lobes of the rotors interact.

Twinscrew BELOW, the ROOTS blowers lobes dont twist. They are straight lobes that simpley inter-mesh.

byrdman454

Heinrich,
Is it going to be possible to make a shopping list of everything you come across needing for this build? I was also wondering if someone would be willing to post a drawing of the intake manifold for the M112. There are some old posts from Andy for the list of things, but since most of his stuff is MIA, I would be interested in what you come up with since you are planning on making it cheaply.

Rick Carter

The Eaton is a manifold compression blower. It works by pumping more atmospheric pressure air into the manifold than the engine can use, this is different from the way a twin screw works.

In the Eaton air is trapped in the concave portion of the rotor, moved around the outside of the case to the manifold, and then squeezed out of the rotor cavities when the rotors merge on the way back up at the center, leaving it in the manifold. The trapped air remains atmospheric until it reaches the manifold.

A twin screw has the rotors moving in the opposite direction, compressing the charge between tightly mating rotors as they move down at the center. Compressing the air before the manifold.

Corky Bell explains it better I loaned his book out so this is the best I can do.

heinrich

Mike I will share openly yes. Thanks Rick, Tony for the info!!

PorKen

Vat is your plans, Tovarishch? You vill have it intercooler on this one, or vot?

heinrich

Read my lips .... ghetto

heinrich

You vannt to kumm hellp komrad?

heinrich

Yet another victim of UPS, but the damage is apparently fixable at least. Cobalt, thanks for picking it up for me and sending it I owe you several cold ones

Sab

you got to be kidding dude... looks like the ups guy dragged it behind his truck for a couple of miles. did you see him dropping it off? i would have given him s*it....

heinrich

Yeah Sab, I would have given the guy a supercharger suppository. I came home, it was waiting here for me.

Bill Ball

It doesn't look particularly well packed, although it did get beat around. The loose peanuts just moved aside. It needed a lot more than a layer of plastic around the unit and some loose peanuts.

hacker-pschorr

That is probably the worst packing job I've seen in a while.