I need supercharger math wizard help

In reply to Justjim75 :

What about an Eaton M62 or similar? I remember reading about 2.5l engines done up with M90s, but that seems like a bit much on a 1.8l. Eaton's model nomenclature is cubic inches per revolution, so the 62 is pushing 1 liter per turn... 

Seems like the AMR500 would do 5psi, but you'd have to be content with just 5psi. An M62 would give you room to make further questionable decisions.

Do it and write a tech article for the magazine, for posterity's sake?

My thing here is that i have done turbos in cars that didnt come that way, and upgraded cars that did, and i dont want all the heat, popped off couplers and other headaches that come with that as my Miata is, so far, a bullet proof daily driver.  ANYTHING that may put me on the side of the road needs to be carefully considered.   A physically small SC that gives me a small boost in power and cant be turned up with a twist of a knob (MBC/EBC) and probably can be run with a small intercooler, or none at all, might save me from myself and result in 15-25 more hp in a win-win package 

Does anyone know the orientation requirements on these amr500 chargers?  Like, can it be mounted either way up without lubrication issues?

In reply to Jumper K Balls (Trent) :

I looked at this vid of the guts and it looks pretty typical. Front bearings and gears are splash lubed, rear bearings are sealed. It should be pretty tolerant of different angles because there's no way you can turn it that one of the front gears wouldn't be partially submerged in fluid and splashing it around. 

In reply to Justjim75 :

I'm inclined to say this could be what you describe, given your experience in boosting formerly-NA cars. If heat is the concern, intercooler and/or meth injection for when you really give her the business?

In reply to JohnInKansas :

I've got a Jackson Racing M62 on my NB Miata. No intercooler. It gives the car a nice kick in the seat of the pants without going overboard. I figure it's making about 180 HP now.

This site says it can be oriented anyway you want....

http://thedubshop.com/amr500-supercharger/

Scroll down for the verbiage.

DeadSkunk (Warren) said:

In reply to JohnInKansas :

I've got a Jackson Racing M62 on my NB Miata. No intercooler. It gives the car a nice kick in the seat of the pants without going overboard. I figure it's making about 180 HP now.

Also, the M45 is too small to go much past 6 psi on a 1.8 Miata motor. That's a 737cc/rev supercharger. Just a little real-world verification of the math being thrown around here.

I am all about two tiny twin superchargers in parallel (not series, parallel). What an excellent terrible idea. The belt routing might get a little weird. You could even use a single throttle body if you somehow arrange for a common plenum pre-SC. You don't want the TB post-SC.

In reply to Keith Tanner :

Two parallel superchargers with an SUcarb on each to act as the throttle bodies. 

So, pull the whole intake and TB, 4 couplers to 4 SCs with a single shaft mounted to underneath, 5 pulleies, one connected to the crank pully, the other 4 driving 1 each of the SCs and 4 Busa TBs mounted to the SC intakes?  Oh, and a nitrous nozzle in each intake runner then MS3!  Easy peazy

I seriously considered swapping this in place of my broken ac on my 2.4l pickup with a 2x pulley setup just to negate the effects of living above 8000ft... sure it wouldn't be a monster, but 20 hp at 3000k would be a game changer up here.