New scans, new plans, new opportunities!

Hello guys,

2 new scannes arrived today. I’ve great plans with these, they revelas great possibilities, revolutinary products on the sight soon! 🙂

Some superchargers and spare parts

Hello guys,

Just cleaning the garage, thought I would show you my collection. 🙂 1 additional is on the way to me. 🙂

I always keep these as parts, if something is necessary for your sc, I can change it.

If you have one which will not be needed just throw me a message. I buy it for parts.

Some of these will start a completeley new life soon in a completely different form. 🙂

Alpina supercharger tuning

I’ve received the bigger compressor wheel for the tuning. 🙂

Stock size: 60/86 mm, 7+7 blade

Tuning size: 70/91 mm, 11 blade

The design process starts now, so hopefully I can present something at the end of May. 🙂

Relay board ready!!!

I’m ready with the relay board. If you’d like to install a DET3 piggyback and need a such panel, just let me know. 🙂

You will find the details HERE.

Alpina supercharger refurbishment improved

Hello Guys,

I’ve improved again my refurbishment service. I’ve changed ultrasonic cleaning to glass bead blasting on the compressor wheel. Ultrasonic cleaning remained for internal parts. Witht this method all of the contamination could be removed and also the micro scratches and damages on the wheel. After the cleaning it’s re-balanced for a better value than stock. Your compressor wheel will look better as new. 🙂

* It’s not a before-after picture. The top one is a damaged compressor wheel, the bottom one is a refurbished compressor wheel, just for comparison. The top one is irreparable.

BMW 545 N62 centrifugal supercharger set ready

Hello guys,

I’m happy to announce that I’m 95% ready with the N62 supercharger set. The prototype is installed on my 545 but it can be installed on all of the N62 platforms (except the E53 X5). And of course this is the prototype, and the final product will look less chaotic, it’ll have less tubing and more clear install. Now it uses the Alpina supercharger, bracket, pulley, etc. The only thing left is fine tuning and Dyno. I’m very curious how will it perform on the dyno.

It can be installed on the 4.4 and 4.8, e60, e63, e65 (e70). And with the additional piggyback you can adjust the tune yourself. It also has the possibility to install a Water Methanol Injection and update your tune.

3D scanning of Alpina parts and twin-screw supercharger

Hello guys,

I’ve been on holiday yesterday and today so decided to make as much progress on my builds as possible. Today we’ve 3D scanned the N62 engine, various Alpina parts, and a twin-screw supercharger for my build. Enjoy the pictures and let me know if you have any question! Btw, I’m considering selling some of the 3D scans.

And why was this step important? Because:

  • I’ll use the scanned pulleys to measure the dimensions, design a larger crankshaft pulley for the Supercharger Upgrade 1 and 2 to achieve higher rpm and higher boost level.
  • To create a package with pulleys and drawings for the fellow hobbists who’d like to make their own measurement, design, or could simply reproduce the parts. Will be later available for purchase only.
  • Analyse, compare stock N62 pistons to Alpina boost pistons and create a compression reducing tech writeup for the DIY people. Will be later available for purchase only.
  • Scanning of the engine and twin-screw supercharger to desing and produce the needed parts for usage.

Alpina B7 supercharger rebuild with upgrade 1 parts

Hello guys,

In the previous weeks I received an Alpina B7 supercharger for rebuild and the owner’s request was to use the upgrade 1 parts because it has a damaged compressor wheel. I’ve been off work, on holiday yesterday and today so I’ve spent my time seful. 🙂

As the shaft had a hughe play of course the supercharger leaked oil heavily.

The supercharger showed some strange issues…

After removing the compressor housing it was clearly visible that someone made an improper repair previously. I asked the owner and he confirmed my theory and noted he also found other additional improper repairs on the cylinder head gaskets made by the previous owner of the car…

After analysing the parts of the supercharger I couldn’t find any parts which could be reused… Everything was toast, heavily damaged, and extremely worn… But fortunately I have some spare uperchargers and could offer new parts to rebuild the SC.

After a short discussion with the owner we agreed to proceed the build. So the supercharger got the new sealings designed by TheCrazyDIYengineer, the uprated hybrid ceramic bearings and the high strength improved billett compressor wheel. I’d like to just mention that I’m not reusing any seals, bolts, etc, but I’m using new o-rings from high temperature resistant (200°C) material and new stainless steel bolts properly glued in.

And this is how a properly rebuilt, upgraded Alpina supercharger looks like with the properly set clearances. 0 play! 🙂

After I completed the compressor side I proceeded with the gear side, but here I found also some additional unexpected surprise…

The basket of the bearings at the side gears has been cracked, and the input shaft bearings was also grinding… These sat back the project for an additional 350 euro… I’ve ordered the parts and complete the build next week.

This is how a worn input shaft bearing sounds like

Development of relay board for piggybacks and standalone ECU-s

Hello guys,

This weekend I did a bit different than mechanical design. I’ve started designing the electronic components for our projects. For less experianced users it could be quite challanging to do the electric design, relay and wiring loom build. I wanted to have something whith which the less experianced users could easily create a fully working wiring loom for the engine, or supply PNP wiring loom for my projects. Therefore I started designing a relay board for the DET3 piggyback and later on I’ll modify it slightly for the low cost standalone engine managements like Megasquirt, Speeduino, etc… Here you’ll see the basic block diagram for the board. Let me know if you have any idea about it! Thanks!

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