Blowers were first fitted to 4 cylinders in the late 1920's. Ol Henry didn't produce his first bent 8 until 1932...It wasn't the first V8 but blown 4s came first.

well who has herd of a supercharger on a small 4cly?!? anyway I'm after a street machine so something with a bit of grunt not a little hiss!

Why is that?

i'm putting a v8 in my 1500 ute and was thinking about superchargers but....... i feel that unless you got a v8 you got to go turbo.

niiiceee pictures Mr. Mac. Very clean install. Good to see some pictures from you. A++

I've posted some pics of the SC 12 I've just fitted to a Celica.

Ah crank pulley I missed that bit...duh. I have to make one of those too but I am waiting to pull the motor out first. I wiil try and remember to take some pics of the install I'm doing at the moment in a Celica with a SC 12.

I hear what you're saying Wayne. Nah, we've just turned up larger crank pulleys. My Dad is always on my case saying we need to make a smaller pulley (for the blower) and crank up the boost. If I do give in to him, we'll have to do what you just described and make a pulley boss out of the inner part of the toyota pulley hub.

Something else kinda on topic,
My mates S/C 12 set up has the blower mounted over and under, with a custom manifold flanged onto the blower intake. (Obviously) He originally had a single 40mm solex mikuni, but couldn't get it to run. So he made a manifold to fit the sidedraft manifold which uses a 32/36 I gave him. ANYWAY, his carb manifold gets really cold after a good thrashing. None of this cold reaches the manifold on the blower because he has a soft mount kit between the two. But it got me to thinking. With my carb being directly over the supercharger, the evaporation induced cooling must be transmited into the blower lobes. One might think that this could prevent the lobes getting heat soaked, and lead to (At least marginally) cooler itake temps.

you can use a machined spacer and fit a EA falcon aircon pulley on a SC12, its supposed to be good for 15psi on a 4agze and you get to keep the clutch.
I pulled apart a VN commo aircon pulley and it looks like a pretty easy thing if you can get a spacer machined up and pressed on.

edit: probably no good as its a 5pk belt. Sorry wasn't thinking about the V-belt.

I am a bit confused cos all the SC 12s I've had apart had tapered splined driveshafts? I searched for alternatives a while back as I had to machine some new pulleys for higher boost and ended up making a hub with the toyota centre and a steel inner to bolt the alloy pully to. Do some have keyed drives or did you modify it.?