Polo GT vs. PD Sport + other questions

[stevenb9n]

The cars have quite different elements.
The 100bhp being the ATD engine code which can be mapped to 130-140bhp (5 speed gearbox).
The GT model uses the 130bhp ASZ engine mated to a 6 speed gearbox and uses a different turbo and fuel injectors.
The 130bhp can be mapped to around 170bhp.

I have the 100bhp ATD 9N and it's a nippy litle car.
I had the ASZ 130bhp engine in my Golf mk4 which I had highly modified to get to 281bhp and 425ftlbs. It costs a fortune to do this though so the Polo plans are different.

For my 100bhp ATD I have already bought a set of injectors from a ASZ/ARL car as these can flow enough fuel for up to 230bhp.
The next plans are for a front mount intercooler and a hybrid GTB1749V turbo which will have a VNT 17 with 56 wheel upgrade (GTB1756V).
Although hybrids are not always considered reliable, it's generally down to the fitting and mapping rather than the turbo unit itself.

Of course with these planned mods the car will need an uprated clutch and suspension/brakes so this will very much be a rolling project as I only sold my Golf mk4 to free up funds for home improvements.

Have a look at Darkside Developments website for some useful info on Diesel modifying.