[QUOTE=FUBU]
Originally Posted by FUBU
according to kleemann here in sweden they say 178mm is the best together with oem cooling of compressor.
Key word there being with
OEM Cooling. Many of us that have gone with a 181mm or 185mm pulley have upgraded the cooling with a larger heat exchanger, etc.
...a lot of the guys running 178mm pullies are also running upgraded cooling. It just helps keep the added power no matter what size pulley you decide to run.