[Raimund]

Originally Posted by CRE

By the throttle body, did you use the evap port (or close to it)? I tried that and the boost/vac signal was slow and irregular.

I tapped to the left of where the throttle body used to mount to intake manifold, on the manifold itself.

Yeah, Bob's a bit hard to get a hold of. A friend is having issues with his tune and the updates to get it sorted out have been slow in coming from what I'm told. I'm waiting on my tuner for some big changes but he's in the middle of moving to Hawaii. I'm running extremely rich but I don't want to reduce my water meth in the meantime.

He is a very busy guy forsure

UPDATE:
I made a video quickly breaking down my build. Forgot some stuff and didn't spend any time editing it, will make another one soon

https://youtu.be/koYVjlSDCTU

[Noir]

Thx, CRE!

[nsjames]

Originally Posted by 303bmw

Yes you are right that's what it was from. What models would you have suggested over the m90?

.

for the money, nothing, but it's still a supercharger designed in the 80's.
new stuff is just more efficient.
The m112 from the lightnings is a bigger version if you find you're running out of efficiency and having hot discharge temps. IIRC it's the same size? I may be very wrong on that.

Jag used an updated version of the m90 unit later on, and that may have internal upgrades to the rotors that make it more efficient, but I don't know.

It's been a long while since I messed with one, but IIRC there are gains to be had by enlarging the ports in the blower and feeding it a larger throttle body.

magnum research (?) used to make a whole new body with larger ports and such, but big dollars. no idea if they still make them.

[ornicar]

Originally Posted by nsjames

for the money, nothing, but it's still a supercharger designed in the 80's.
new stuff is just more efficient.
The m112 from the lightnings is a bigger version if you find you're running out of efficiency and having hot discharge temps. IIRC it's the same size? I may be very wrong on that.

Jag used an updated version of the m90 unit later on, and that may have internal upgrades to the rotors that make it more efficient, but I don't know.

It's been a long while since I messed with one, but IIRC there are gains to be had by enlarging the ports in the blower and feeding it a larger throttle body.

magnum research (?) used to make a whole new body with larger ports and such, but big dollars. no idea if they still make them.

TVS series (R900 ; R1040 ; R1320 ) are the Eaton replacement for the olds Mxx SC. They are more efficient With less dissipate heat.

They don't seem easy to find used.

What i don't understand about SC on the N52 is how to deal with the valvetronic???

[Torgus]

Good ol Eaton M90!

Nice job on adding the SC. Sounds great.

[Raimund]

Originally Posted by nsjames

for the money, nothing, but it's still a supercharger designed in the 80's.
new stuff is just more efficient.
The m112 from the lightnings is a bigger version if you find you're running out of efficiency and having hot discharge temps. IIRC it's the same size? I may be very wrong on that.

Jag used an updated version of the m90 unit later on, and that may have internal upgrades to the rotors that make it more efficient, but I don't know.

It's been a long while since I messed with one, but IIRC there are gains to be had by enlarging the ports in the blower and feeding it a larger throttle body.

magnum research (?) used to make a whole new body with larger ports and such, but big dollars. no idea if they still make them.

Thanks for the info, I will probably end up porting the inlet and outlet.

Originally Posted by ornicar

TVS series (R900 ; R1040 ; R1320 ) are the Eaton replacement for the olds Mxx SC. They are more efficient With less dissipate heat.

They don't seem easy to find used.

What i don't understand about SC on the N52 is how to deal with the valvetronic???

Hmm seems like the M90 was the easiest to find/cheapest choice then. And there's a few things that need to be figured out with the valvetronic, like a bypass valve. But I haven't come across too many issues.

Originally Posted by Torgus

Good ol Eaton M90!

Nice job on adding the SC. Sounds great.

Thanks !

UPDATE:
Next up on the to do list
-Remake supercharger adapter with thicker steel as the thinner plate leaked under boost.
-Add BPV
-Install smaller pulley
-Rebuild supercharger

[Raimund]

Here are the most recent updates on the build

I'm also selling the SC kit for $2k to fund a turbo build and see how that does on the N52.

[NoGuru]

Sick!

[King Rudi]

Lords work was done here. Well done.