Fearless

Just got to relocate the fuse box and wait for new belts to arrive then I can give it a test.

Thank you Thank you Very true. I still don't know how well this is going to work but I have really enjoyed the challenge and if this first attempt doesn't work out I know I will make it work eventually. That's what I like about mechanical things so much easier to work out than women.

Almost finished this now, can't wait to get the new drive belts and see how well it works

It's what makes be get out of bed in the morning. Couldn't imagine life without doing something to the supra 

Bit more progress

Yes but I was thinking smaller drive pulley on charger so it hits max revs/boost at 3500rpm instead of 7000rpm then it will work more like a roots type charger.

That's a cool little car and I never thought I would say that about a Micra! That's the ultimate goal but I need to get some jobs done around the house first or the missus will kill me

That is awesome. What coating is on the turbo manifold, looks like gold plate!

Would love to take a look at that kind of setup. Have been thinking of a supercharger/turbo setup for a while. That's half the reason for wanting the clutch on the supercharger but don't tell the missus. She thinks I'm doing this for her so it's not so loud 

Attached the clutch housing to the new idler plate assembly

Because the flywheel pulley is quite small on the 1uz then the drive pulley on the supercharger has to to be very small and I'm fairly sure that a clutch that could take that amount of torque could not be made that small. So that's why I'm having the flywheel pulley driving the clutch and then the clutch driving the supercharger via a separate belt. This also has the advantage that I can position the supercharger further back in the engine bay because it was quite tight to the radiator before. New position will be here

I know Mercedes do use a clutched compressor on at least one of their cars. Not sure if the clutch I have is up to the job but it looks fairly beefy, and I only intend to engage it at low revs. As to knowing what I'm doing well I'm just making it up as I go along

Where is it going to recirculate the air to? This is not like a roots type supercharger with the throttle body at the inlet side of the supercharger. The inlet side of the supercharger (apart from the air filter) is open to atmosphere, this is just like a belt driven turbo.

So now I've made a replacement for the plate with the idler pulleys and left enough metal to make a bracket for the new clutch housing

Same kind of thing just a lot more beefy

I have a Syvecs S6 and have 2 separate maps already NA and boosted I switch between the 2 when changing drive belts so yes that is the plan to get the Ecu to output a 12v signal to activate the clutch unit when switching to boosted.

Alas after looking at every possibly I could see this was not going to fit so dismantled the unit and decided that it could be modified to fit The body is just to wide but the shaft and bearings could be adapted to fit into a custom made body This is how far I have got more pics to follow

Do you know of anyone who has done this ? I have a centrifugal supercharger so can't use a recirculating valve when the throttle is closed/partly-closed so it is always producing boost while the engine is turning. I have a twin dump valve setup to release the pressure. This works well but gets quite annoying on a long drive (constant escaping air sound) so I end up driving it most of the time with a smaller utility belt to bypass the supercharger which is mighty embarrassing when big num pulls up next to you on a Luxembourg motorway and I am in NA mode. So this got me thinking what I need is some way to switch the supercharger on when required so I started searching for a beefy 12v electromagnetic clutch and this is what I found This looks quite chunky so with that bit of scientific research completed set about seeing how I could fit this somewhere under my bonnet where it could drive the supercharger.

Shirley and me are going

Sorry we can't make this one as have a family get together this weekend

Can't do it this year already booked to see elton John at longleat on the 12th June, anniversary present for Mrs fearless

Sorry haven't got any video but I got it on eBay. I do have 1 of these for sale but probably a bit small for your exhaust. http://www.mkivsupra.net/vbb/showthread.php?327634-Varex-active-exhaust-rear-silencer&p=4083100#post4083100

I have a Varex on mine and it is great. Straight through power and sound when you want it and civilised driving when you're just cruising

Thank you I will speak to both on Monday and see who can do it soonest. This is getting very urgent now.

No I've not heard of him, thought Syvecs just sold ecu's and it was just Ryan that that did the mapping.