Big Will

It's a straightforward swap. Ideally you would get an ECU remap to take advantage of the bigger turbo but your car will still run fine with the 15G on the stock map.

To Ben and Lucky: Really cool that you guys figured out a way to data log using smart phones to keep the cost down significantly.

-Matt01, on 11 January 2012 - 05:06 AM, said:

You are talking about the AWD lowering springs made by Öhlins meant for their rear shocks or are you saying that the Öhlins suspension itself is too soft? If you mean the spring that's probably because it's meant to be used specifically with their shocks developed for the Volvo.

The XC should boost about 8 PSI stock.

If you find a '98 B5234T3/T6 motor which are the HPT variants for the US market then your ECU would literally work but it would be better if you used a matching ECU so that it provides proper boost for the bigger turbo and deals with the slightly lower compression.

You can also send your current ECU to any of a number of tuners to convert it to a stock HPT ECU or put whatever tune you want converted for the HPT ECU. '98 ECUs aren't mated to a car's vin # so you have lots of options.

The engine has nothing to do with the AWD so you don't have to worry about using an R motor vs. a T5 motor since I assume you are keeping your current AWD transmission which will bolt up just fine.