On E85 we've hit about 700 or more several times! On the 991's we are making well over 700!

 

Oh geez. I can smell the crack from here :-o. And its drawing me in

 

If you're going to upgrade turbos, I highly recommend changing the coolant pipes to stainless steel. My project was done e85,vtg65,intercoolers , inlet and outlet pipes, tune etc. all it needed was dyno and fine tune and I ended up cracking one of the plastic coolant pipes! They have to pull the motor again just to get to the pipes and believe me it's not cheap! Just a heads up if you want to play get ready to pay..

 

Agreed. We are seeing more and more people address the coolant pipes. Granted, there are thousands of cars out there so we are only hearing about a tiny percentage where this happens. But it sucks to be in that %. In my career it's happened twice in almost 20 years with various cars but it sucked both times! Also address all of the water fittings. Especially if the engine is going to be down. There are several projects going on now withh this being addressed currently.

 

I agree with Sam, try to do your cooling system updates. You can look through my build thread to give you an idea of what's involved. If you aren't comfortable doing it yourself or simply don't have conditions to, have a very reputable shop do it. Preferably where they have done it multiple times. A lot of small parts involved like gaskets and O-rings. Gets pricey quick