Not sure but you could prob use the compressor as an asthmatic supercharger :)

can I use AC compressor oil as supercharger oil?

LOL, viscous heavy lump! good luck on the sleep!!! melatonin tablets help when short sleep is the only option.

Clutch or viscous?
I already have my r200 with a Viscous LSD, and shortened skyline half shafts and CV's all ready to go.

Man I miss sleeping.........

ka24de supercharged sounds just right!

Bart, congrats mate now less money for beer will bring good health! if you want to swap my AY1200 for your 4 port head let me know ;) can even give you free R200 lsd for your 510 if you have a kiwi mate here that wants a sore back taking it back :)

Here is the map for the 1200AY supercharger.
It's actually for the Lysholm version, but from extensive searching they say that the IHI unit is the same pump, just built under license by IHI.


I'm too tired (thanks to my one week old girl) to convert 18m2 into cfm atm.
But I'm going to run my IHI blower on the CA18det thata I have squirreled away for my 510. The twin screw design (One male, and one female rotor) is far far superior to the AMR's, SC's, and Eatons alike. Space can be a limiting factor though. My 510 is going to be all under bonnet. Stuff poking through the bonnet gets old. My car lives outside, and the underbonnet gets filthy. (Windblown dust from liquifaction, and roading in my area make it even worse)
I would dearly love to know what pulley ratio the IHI's ran on the Mazdas. Although they did run mickey mouse cam timing. Acording to Feral's formula posted years ago, 1.5:1 should yeild a nice 14psi of boost.

I use a Eaton M62 on my Z24 with 5 .pounds of boost. It's pretty quick but I'm thinking about moving on to a KA24de. I'm going to skip the fuel injection and use the supercharger and nitrous again along with a dual weber carbs.
I just want the car to go faster. Looking for a motor now for a winter project.

Thanks for the words Jmac and to all the unfinished datsuns out there we all have different lives with different issues, budgets and ideas so passing judgement without knowing the person on a personal basis is nothing but petty. The main thing about dattos is that they are never finished if you like to tinker, change styling and go faster then it sure beats wasting money at pokies etc. Each to their own.

I like the idea of a budget oil as when I was looking for advice on the IHI version of the Lysholm Ax1200 in the Eunos v6 I found peeps had no issues with 10w-30 synthetic oil as long as it was changed every 5000 kms as this blower relies on sharing the engine oil for both lube and cooling.

With oil in the SC14 Id guess it would last at least 20,000kms but I dont know for this 1.4 roots type blower
how you would keep it cool in sustained race use unless you
just spray the casing with water again for cooling.

Im not using the IHI twin screw blower now I bought 2 to play with but have decided on the lil Amr500 for packaging so my IHI blower will be for sale, they have a Peak flow of 635 CFM @ 17.5psi & can run a oil cooler unlike most others.

I was thinking of getting a supercharger to put on my KA .. But they're just too expensive! it's like over $2k for just a vortech or an eaton 62 .. I can get a whole turbo conversion kit from the US with a BALL BEARING turbo , intercooler, wastegate and all piping for $1500 landed. and really a turbo has just as much low down torque if you set them up properly.

The only drawback with that method is that you don't get a high enough pressure at the injector to acheive proper atomisation of the stuff being injected.
Water/meth injection works the best when the droplets are the finest possible mist. The more surface area the droplets have, the more heat they draw from the charge. (And the better they can do it)
This is why when the fire service are fighting a fire inside a say a house, they'll set the branch to spray a fine mist into the air. (Albeit at great pressure, and fed from a 90mm hose) This has the best impact on drawing out the heat, and cooling things down.
Likewise, if you run a higher pressure to your injector, you get a better mist. I quizzed out a mate who does irrigation systems. He said all the nozzles they use need high pressures to get a nice mist. When the pressure is too low, they just dribble.

The eaton blowers are a far btter unit that the toyota ones, but their size and shape makes them an awkward install on a datto. Plus the jury is out on if the coatings on the rotors can stand having fuel passing over them or not. (I have an M62 here where the coating is begining to delamitnate.

And on the blower oil thing, I found some for sale on trademe years back. Well well below what it costs full retail. It has a unique silicon-esque aroma to it. Not like RTV silicon, but more rubbery.