Yesterday, 11:29 PM
Champion Motorsport is readying their 991 Turbo and 991 Turbo S intercoolers for release. PorscheBoost member @sdg1871 is purchasing these intercoolers to along with a revised GIAC ECU tune for the 991 Turbo and S platform. This member has combatted heat soak issues and GIAC themselves finally commented that the 991 Turbo platform indeed suffers from heat soak.
Further details from @sdg1871 below.
Two days ago, I visited Champion Motorsports to discuss the work that I want them to do on my car (install the upgraded intercoolers/Y pipe, datalogging with the new mods to ensure they are functioning properly and eliminating my car's heat soak issue and possibly changing to catless exhaust).
As usual, Tom was terrific and informative. And finally some good news for those of us waiting so long for their intercoolers for the 991 TT and TTS -- they will hit the market very very shortly (as in days not weeks). They have enough finished product for an initial run of about 14 sets. Shortly they will write their instruction manual for installers and the kits will be released. These will not be cheap as they included huge upgraded ICs, a Y pipe and what looks like very upscale carbon tubing.
Here are my photos of the new IC kit parts and comparison photos of their new ICs vs the stock ICs. The Champion ICs (on the left in the pics) are a lot wider than the stock ones (on the right in the pics) and have more rows in their core -- meaning that there is a much larger surface area for heat exchange than the stock ICs.
The GIAC tune that is paired with the new ICs (I have no idea what GIAC is calling it but I would call it Stage 3) is supposed to be a lot more aggressive than the Stage 2 tune. I am told there is a significant power bump in absolute bhp and torque and that there will be a lot more power at higher RPMs (as I understand it, due to the enhanced intercooling they can push the turbos harder at higher RPMs than with stock cooling). I know what the numbers are but I certainly wouldn't scoop Champion and GIAC in putting them out. What I can say is that they are excellent and don't rely on water/meth injection, nitrous, sensor/cat-destroying leaded race gas or other techniques to get there (although I am sure with those other techniques the power would be greater still).
Can't wait until cars with these new IC/Y-pipe kits starting hitting the dragstrip so we can see the performance difference in the real world. I certainly hope and expect that the real world numbers will mirror the big gains being seen on the dyno. Maybe we will even see nines in the quarter mile in the fall when the air is cool.
They are also actively testing and datalogging a turbo upgrade. That looks to be at least a few months away from market. When I was there their test car was on the dyno for data logging for the turbo upgrade (it had both the ICs/Y pipe and the bigger turbos installed). Should be an exciting development for those looking for the really big power.