The car is a 2008 C4S with an aftermarket TPC racing turbo kit. The turbo went south. I decided to get a Garrett CHRA, and it's got water cooling ports. (the orig turbo did not). I asked TPC if they would suggest a spot in the cooling system to T off some cooling lines, but they said they wouldnt-- but would run the turbo as is. I have heard of that, and it would be fine, but I'd like to plumb some cooling lines to stay within warranty w Garrett if possible. Anyone here care to share opinions about what area you'd tap for this? I thought I might just T off the heater core lines, but I was talking to a guy who owns an indy shop and he thought that was not a good idea. He said coolant doesnt always flow through those lines. I honestly do not know. Hoping someone here can suggest something I havent thought of. Thanks for any input.

 

I had a VW Mk5 R32 with Garrett GTX3584RS. It made 882 whp at 28 psi. It ran fine without the coolant cooling. Just make sure your oil supply line and drain line back to the oil pan is good.

 

Pictures of this set up please!

 

Thanks for your input. Maybe I'll install without coolant lines now and do it later.

 

How was that R32 to drive is my question, I had a GTI that seemed unable to cope with it's 220 HP!