Just a discussion piece really. I've thought for a while if you were going the supercharger route one of these would be a good match for an A-series, good flow (up to 185HP) and nice and compact.

http://www.ebay.com.au/itm/Seadoo-SUP ... ageName=ADME:B:SS:AU:1123

They have clutch washers between the drive and the compressor shaft, presumably to prevent broken shafts on over boost. When they talk about replacing ceramic washers with metal washers this is what's being discussed. The other challenge would be getting a big enough gear ratio. If I've found the right information I'd say you'd need a gear ratio of 86:17 or about 5:1 to 6:1.

As usual more ideas than time to action most of them.

For some reason I can't upload a pic without crashing the browser but there's one here http://i.tfcdn.com/img2/hNBxSU4AY5r8z ... 6lvYlhp7JYU5O_p6qOXVZAOAA**/fyVMtP8A

I have silmalar supercharger on my seadoo 255hp jetski .works good plenty of power.we normally rebuild the charger every 100hrs and put in titanium washers

Sad day when a jetski has way more power than most our Datsuns in 2013, nice looking unit would be nice if it didnt need so many rebuilds though

I'm sure if you really wanted you could lock the washers and avoid rebuilds. 100hrs is roughly 40-60,000kms, for me that would be every 4 years for my road car which is the same interval for timing belt changes for my other car. 60,000kms or 4 years.

Yeah they deffenetly put out good power.especially when my ski only ways 340kg :) 0-100 in around 2 seconds.it will take a little while to reach the 100hr so would work out good I think

Put it on my rotax go kart :)

10 hours a week would be 10 weeks rebuilds for me

but sounds perfect for you Dylan especially considering
it weighs bugger all compared to other SC or turbos.
What size is the opening?

Whoops, missed a zero.... I'm sure it wouldn't work as hard in a car as it does on a jet-ski so could probably go longer than 100 hrs.

Not sure what the rebuild involves but its such a simple looking unit there couldnt be much in it besides seals and bearings as it doesnt appear to have external lube or some kind of oil feed. The inlet looks like 1.5 or 1.75 inch?
It has plastic or composite polymer casings right?