Help, first time b8 3.0 supercharged owner need tuning advice

[MSq5]

Hi do you have a link I can order the 183mm pulley kit? So if I only gonna change single pulley, do I buy the crank pulley or the charger pulley? I. M bit confused, which give the best result and easy install?

The pulley makes no power without the tune to go with it. Your stock tune would just bleed off the extra boost. Harmless, but wasted.

Select your tuner. I went with EPL, but there are about 5-6 other good reputable choices. I don't know which ones service NZ. EPL is entirely flash at home by MS Windows laptop or tablet and Internet cloud-based map upload and download. So, they can probably tune you anywhere.

Your tuner will recommend a pulley, either 179mm or 183mm for the crank pulley or 57mm for the S/C pulley for basic Stage 2. You'll get about a 2.80:1 ratio with that single pulley set up. Go higher and you will need to improve cooling for the supercharger as the higher rpm generates a lot of heat.

People disagree on which is easier, crank pulley or S/C pulley.

I went with one piece crank pulley to get stage 2 ratio and to ditch the OEM pulley which is failure prone.

I was able to install it from below without putting the car in service position. Some blocks have a casting that protrudes and interferes with the pulley and belt on oversized crank pulleys. If you have that tab, you grind or saw it back out of the way. Install time is about 1- 2 hours first time. I can now do it in about 30-45 minutes.

S/C pulley install requires service position, a special puller and an oven to heat it up to at least 350-400 degrees, as it is an interference fit.

There are threads here with step-by-step instructions and tools needed for both installs.

BTW, NZ is a fantastic place. Vacationed on South Island, Queenstown area, a few years back. Spectacular landscape and pinot noir. Enjoyed the stay. Hope to get back someday.