M30b34 E30 twin-screw supercharged muscle car

[Ether-D]

A little exhaust work, all from recycled items except for the four 6" splices where I used new 2" pipe to overlap in both directions.

Downpipe section:


Splice to "H" or "X" pipe section:


Bend to dual in/out cat:


Complete unit:

[Shaffer325ix]

The supercharged Mazda Mellinias had something called a "Miller Cycle" I think. Look it up on the wikipedias. It's weird. It involves the actual engine and valves and such more than other types of supercharger setups.

But yes, twin screw is generally referred to as Lysholm as well.

Yes, yes.. I'm very familiar with that POS.. lol. The idea was great. Having 11 electric/vacuum solenoids and 38 feet of rubber vacuum line wasn't. One tiny little vac leak, the engine ran like poo and you possibly lost ABS and Traction control, engine would stall intermittently... When it ran good, The engine ran smooth and quiet at idle. Pretty flat torque 'curve'. However, the Lysholm (brand, not type) was fed oil from the engine. Unlike the M90 which had a bath (I believe), or at least its own source. Like the Lysholm, your SC has those little tubes to supply the oil to the bearings. You need to run synthetic or you can clog them up... Then the obvious happens. I know a few guys who tapped them for grease zerks without issues, but they also greased them frequently. You would probably be doing yourself a favor by making sure the tube were not obstructed at all.

[Ether-D]

Yep, I don't actually have it in my hands yet. It should arrive late this week or next. I'll definitely dick around with it for many hours pre-install on the oil fittings and whatnot.

Zerk fittings would be neat.

[Ether-D]

When you've got time instead of money…
I got the bends.

[Ether-D]

OMgoodness. I think it may become a bit of a monster.

[The Dark Side of Will]

Thanks Guise! So who has clever ideas about where I can tap some pressurized oil to feed it? It has an inlet and outlet on the intake side for rear bearing oiling. So I'm gonna need some erl from somewhere, and a drain also I reckon.

Does it take an active oil supply?
I never dug deep enough into the AutoRotor documentation while I had it. I always @$$umed is was like an M90 in that you just need to keep it full.

I was surprised at how easy documentation was to find when I googled the model number, though.

The plate on the bottom that's held on with the two torx fasteners comes off and you use the six threaded holes under that to mount it. The plate is just to adapt it to whatever manifold you run.

You'll need a bypass and a way of controlling the bypass as well.

[DER E30]

I like what you're doing... Keep doing it!

[Ether-D]

Does it take an active oil supply?
I never dug deep enough into the AutoRotor documentation while I had it. I always @$$umed is was like an M90 in that you just need to keep it full.

I was surprised at how easy documentation was to find when I googled the model number, though.

The plate on the bottom that's held on with the two torx fasteners comes off and you use the six threaded holes under that to mount it. The plate is just to adapt it to whatever manifold you run.

You'll need a bypass and a way of controlling the bypass as well.

Yep, it does have oili supply and return spouts on the rear bearings, but Shaffer325ix mentioned folks put zerk fittings on and that's likely what I'll do as well.

[ThatOneEuroE30]

so cool

[Peterkaczynski]

gee wiz mister i like this build

[Ether-D]

Mmmk, question about exhaust:
What if I come out of the exhaust manifolds (dual all the way) and into a cross-pipe, on to the dual in/out cat, then into a 12" glass pack and a 22" glass pack right at the end on one of the pipes, and just the single 22" glass pack on the other?

What might happen? The two pipes would have differing loudness/tone possibly. But what would that sound like? Well, I'm gonna try it. Mainly because it's too damn tight in there for two 12" and two 22" glass packs behind the axle. I'll make vids of all of it when it comes alive. Just wondering what r3v's predictions are.

[Ether-D]

Ok scratch that. I was able to fit the other short glass pack into the mix. I was actually really curious as to what it would have sounded like though.

[Ether-D]

Done!!! Bout $90.

[agent]

Hey wait a minute... those aren't side pipes?!

[ThatOneEuroE30]

Hey wait a minute... those aren't side pipes?!

Qft