Finally had time to turbocharge my m103 , which took the place of the failed 2.5-16v turbo.

The setup is the following :

- standard m103 engine
- T3/T4 turbocharger with integrated wastegate
- 6x630cc Siemens Deka injectors
- throttlebody and tps from a 2.5L bmw engine
- exhaust header from 3.5L diesel mercedes
- Megasquirt I v2.2 ignition and spark control, using a 60-2 trigger wheel and hall sensor. Ignition uses 1 bosch ignitor, controlling the stock mercedes coil and distributor.
- custom intercooler

The whole project took about 3 1/2 day, started Thuesday afternoon and the car was ready Sunday(last night) around 20:30, lost almost a day at the machine shop . Car runs fine when not on WOT,to about 2/3 of the throttle. At WOT the car starts to detonate (at least sounds like detonation) over 5000 rpm, at first I though I had too much ignition advance because I started with 24 degs @ 0.5 so I started lowering the ignition advance in steps and got to 5 degs but there was still detonation. Most likely I have some ignition problem which I have to sort out. If anyone has an idea what the problem might be please chime in, my first thought is to change the sprakplugs to colder ones, and check the ignition dwell and charge time settings . The afr ratio at WOT is quite rich for the moment 10.9:1 - 11.0:1 , cruising it's ~ 16 and at idle it's 14.7:1

Here are some pictures from the setup :

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190E 3.0-24v (M104 980) turbo @ 0.8 bar
1/4 mile: 2.483 / 13.540 / 175.17 km/h (street tires)