When I first got the car, I fancied going further than the GT17. After seeing a pals GT25 enabled 106 Rallye... I set about finding one, with no success.
The GT17 is a cracking turbo though, the car genuinely feels like its N.A and whilst it might not do a great deal more in terms of horsepower, I think I'll end up keeping it + ECU to either put on another or revert back if the project doesn't go much further.
I then did a bit of reading and located a GT2259. This appears to be a good middle ground from the 17 to 25 and so I bought a new one pretty cheap. The problem being is that the compressor housing is enormous and I'm pretty sure it will foul the block and radiator when fitted onto the milltek manifold... so that might need to be changed or a custom one made. Anyway, pics...
Oh... 3 Plug Predator + paddle clutch also obtained, but not fitted obviously, as the current one at this power level is fine.
You can see the turbo's exhaust flange is an odd 4 bolt design. I've struggled to get a flange to create a downpipe, so had my helpful cousin take the gasket and make me some on the laser cutter
Next issue is a 2.5" V-band pipe to mate to the intercooler pipework... .currently looking into that - along with a custom exhaust manifold.
Plans are to up the power to circa 250bhp on the current engine (even though it is a bit tired) and build up another engine to wait in the wings. The current unit is smokey on idle and whilst I can't see too much evidence of the oil seals on the GT17 going, It does look like the valve stem seals are screwed. As its not causing too much heartache, I thought I might as well leave this engine in situ and get the new turbo adapted, so I can just swap over when I'm sick of the smoke!
Immediate plan though, is to fix the water leak & starter motor. As it appears the solenoid is not receiving a feed from the ignition.
#boost