HOME (site last updated 24th September 2006 - see timeline)

The project is now underway - for latest news check the timeline page I'll be updating the pictures page in a few days (possibly - I'm a bit lazy)

This site is here to document the installation of a turbocharged 16 valve engine into a standard Peugeot 205 gti.

The recipient car is going to be my 1.9 litre "miami blue" gti, which I've owned for a couple of years. The engine is in a pretty sad state at the moment, and it seems to be burning more oil than petrol!

The body is in pretty good nick for a 13 year old car, and the suspension is going to remain standard. I'm not a big fan of lowering cars as there are speed bumps everywhere near where I live.

The wheels will also remain the same 15" Speedlines that came with car, under which will be a set of 4-pot wilwood brakes with bigger discs (Rally Design kit) and possibly a bigger master cylinder.

Although the standard 205 isn't slow, it is starting to show it's age against some of the newer hot hatches which, although heavy, have stacks of grunt under the hood (Type R's, new Golfs, Focus RS - for example).

This is why I need a better engine. Standard pug 205 is 8v and it's very common to swap it with an Mi16 engine from either a Citroen BX or Peugeot 405. There is lots of documentation on it and it produces about 160bhp in standard naturally aspirated form.

The turbo will be a Garrett T25 which started life on a Nissan 200sx. It is also the same model that Turbo Technics put on the 8v engine when they did their conversion.

I will be running a pretty low boost of about 5psi (0.34bar) so the compression ratio will stay at 10.4:1. Although I will be buying new pistons, I won't have to modify them in any way or put in a thicker head gasket.

Alex is making up some direct-to-head throttle bodies for me, which will either have some cossie injectors in them or standard mi16 ones, depending whether we go for the 4 or 8 injector setup.Out goes the Mi16 distributor and in comes a coil pack. An Emerald M3D ecu should control the lot.

Hopefully the engine should be putting out about 180lb/ft when it's all done (the uprated helix clutch is rated at 179 l/ft hopefully they've given a margin for error!)

I've already got my hands on a Quaife ATB diff to hopefully reduce wheelspin and improve cornering.

Finally I couldn't do this (and wouldn't have done this) if it wasn't for Alex (he's doing most of the dirty work!).
Also thanks to people on the 205 forums for their advice and help - a cracking bunch of people.