RacingGreen

Ok, I'll start here:

I love the whining of superchargers
I think the linear power deliverly suits the miata better...

I'm starting this little diary to encourage others here to go the SC DIY route along with proper engine management

My car: 92 1.6l LE miata

Goal:
Water to air intercooled coldside M64 supercharger (switchable) running with E85

Jan, 23
What's been done so far:

Drivetrain:

11lb OEM flywheel
Spec Stage 2 Clutch
95 drivedrain/Diff 4.1:1 Ratio
Rx7 LSD (clutch type)

Engine/ Management:

Coldside coolant reroute
Emanage Blue+O2 Clamp, already wired in
Rx7 Flowmeter

Soon to come:
Zeitronix Zt-2
Knocksense MS

Fuel:

190lhp pump
E85 save fuel lines
DIY dual feed fuel line
460 Rx7 injectors
(yet to be installed)

Supercharger:

M64 out of a Mercedes 320 CLK
electronic clutch
dedicated 6rib belt
Pulley ratio: 1.6 to 1
Expected HP: 180-190whp

Joe Perez

iTrader: (8)

EMB + 460cc injectors =

The electronic clutch sounds interesting, though. Very Mad Max'ish. Is that something that's stock on the donor car?

Zabac

iTrader: (39)

interesting set up, true DIY set up, i like it
are you considering water/Meth injection? im sure you would benefit from it
what is the displacement of the SC?

RacingGreen

I figured out that I would need aproximatly 30% more fuel with E85, so,

230ccm x1,3 (because of E85) x 1,5 (max size the EMB can handle) = 446ccm

Orgiginaly, I wanted to use Supra turbo 440 injectors, but couldn't figure out wether they are high or low impendance...the list here says...both

The clutch is a stock feature on the donor car, the charger is usually shut off there and gets activated only past 3000 rpm

This is a picture of the unit:

http://homepage.ntlworld.com/anthony...AGE/sc/m62.jpg

the displacement is either 0.62 or 0.64l

ApexOnYou

iTrader: (10)

Turbo MKIII Supra 440CC injectors should be high impedance, pretty sure they were when I ohmed mine. I have a set (5) that I would sell if you would rather run those (Bought 6, one was dead). PM me if you would be interested

Al Hounos

ehhhh... i really don't think the EMB is gonna work. just skip it, save a bunch of time, and go with MS.

even if the EMB could control 460s are you sure they're enough? they max at about 220-250whp on a turbo gas engine, so on e85... i'd guess you'll be cutting it close at 200whp. find a calculator.

kyle242gt

Stock intake manifold? How are you going to fit the SC and intake on the coldside? What sort of IC, and where will it be?

Looks like a cool project, especially with the clutch.

Zabac

iTrader: (39)

yeah, pics would be awesome, share some ideas

RacingGreen

The stock intake manifold has been cut just after the Screw points for the fuel rail. The intake manifold itsself will have a simple triangular shape with the inlet on the bottom (and the
Bypass-inlet on top) and will be welded to the manifold flange. The Blower is going have a seperated mounting plate with a cutout for the fuelrail so that no stress is put on the aluminium welds.

The Water to air intercooler will be one of those Cheap "XS Power" intercoolers from Ebay and will either be directly integrated into the manifold or the SC mounting plate or will just hang unter the blower...still not sure wich way to go...

RacingGreen

Actually, I just stole the idea from FMs early Ubercharger prototype...

The intake manifold will somewhat look like this:
http://www.flyinmiata.com/images/mis...r/Mvc-002f.jpg

On top of that a separate mounting plate which bolts to the Head instead of the intake Manifold...


I'm going to take the intake manifold apart during the next few days and spend some time building a prototype out of 5mm PVC sheets

RacingGreen

Well the EMB was a great deal on ebay...100$ including the ignition harness...couldn't resist...

...also I do live in Germany. There is no way going through TUEV with a standalone, especially when they see the blower and ask how fuel is controlled...so the only other option would be a EMU which is really expensive here.
If I'm close to the edge on injector duty cycle, I would propably install a simple 4:1 FMU ...

Rafa

iTrader: (22)

Why not MS in parallel? BTW, you should check a thread posted by Bill (formerdatsunman) on m.net. You'll get good info there. Also; why an A/W intercooler? Bill is running a A/A one and says that the A/W ones tend to heatsoak.

Good project btw,

Mach929

iTrader: (3)

we don't have a clk320 with a supercharger here in states, any specs on it? is it 112 engine or something else

RacingGreen

I have to correct myself.the unit is from a 98-03 Mercedes 2.3L engine as used in the slk, c and clk

iWeasel410

It sounds like the M62 with an electronic clutch.

Mach929

iTrader: (3)

cool, it's a 111 engine then. i'm interested in how this turns out

j_man

That's easy. Put OEM stickers on the MS and just put a dummy box looking like an EMU which doesn't do anything and is empty inside Your '92 doesn't have OBD II so they won't be connecting anything to the ECU ...