What did you do to your 996TT today?
03-19-2024 | 06:18 PM
RL Community Team
Rennlist Member
Rennlist Member
Joined: Mar 2018
Posts: 18,858
Likes: 4,223
From: Vancouver
Yep, the fun begins! Engine is phenomenal even using the base map. Made a few minor changes to the base since we talked on Saturday and the low rpm drivability improved 10x. Cervelli really knows how to build a motor. I met up with another 996TT owner and 2 997TT guys while I was running my break in route and they all commented on how clean and smooth my engine sounds, none of the typical mezger rattle.
Did a lot of runs at less than wide open throttle up to 5500-6k rpm and let it engine brake back down to 2000-2500 and repeat. Saw a peak boost of 0.4 bar or something like that. It just wants to rev and it really comes alive as the rpm climbs. It revs so fast. Can't wait to experience it fully dialed in.
I'm tentatively at 8400 and likely back it down to 8200 as tuning progresses (depends on what the motor wants) and his current motor is 7600-7700 I think, but has seen higher on the dyno.
Did a lot of runs at less than wide open throttle up to 5500-6k rpm and let it engine brake back down to 2000-2500 and repeat. Saw a peak boost of 0.4 bar or something like that. It just wants to rev and it really comes alive as the rpm climbs. It revs so fast. Can't wait to experience it fully dialed in.
I'm tentatively at 8400 and likely back it down to 8200 as tuning progresses (depends on what the motor wants) and his current motor is 7600-7700 I think, but has seen higher on the dyno.
03-19-2024 | 06:42 PM
Burning Brakes
Joined: Jul 2021
Posts: 1,045
Likes: 150
From: tri-state
If I choose to go back to AWD, I am most certainly going to do what Darrick did and use a 991 front diff and controller, which will allow for some slippage without burning out the diff; I can most certainly see this issue with the goo diff on the 996, but an electronically controlled clutch diff should be more forgiving.
Am tempted to do it on my car but will see how it works when I go w/ a K16/24 Hybrid and tune. I will also be relocating to a warmer climate in the next year or so as well so not sure if its money well spent
03-19-2024 | 07:50 PM
RL Community Team
Rennlist Member
Rennlist Member
Joined: Mar 2018
Posts: 18,858
Likes: 4,223
From: Vancouver
He is using an aftermarket controller, don't think the 991 controller works with these cars. I believe he said the stock map it comes with is pretty good and you can tune it as well.
Am tempted to do it on my car but will see how it works when I go w/ a K16/24 Hybrid and tune. I will also be relocating to a warmer climate in the next year or so as well so not sure if its money well spent
Am tempted to do it on my car but will see how it works when I go w/ a K16/24 Hybrid and tune. I will also be relocating to a warmer climate in the next year or so as well so not sure if its money well spent
In a thread over on the 991 forum I've asked the fellas if anyone knows how the 991 system works - TPS, versus slip, etc., etc.... no numbers yet.
03-20-2024 | 01:53 PM
Burning Brakes
Joined: Aug 2023
Posts: 983
Likes: 188
03-20-2024 | 03:53 PM
Race Car
Joined: Aug 2017
Posts: 3,879
Likes: 1,912
From: Central MA
These look like Cayenne rotors. The empty hole is for the rotor retaining screw.
03-20-2024 | 04:58 PM
Burning Brakes
Joined: Aug 2023
Posts: 983
Likes: 188
03-20-2024 | 05:29 PM
Race Car
Joined: Aug 2017
Posts: 3,879
Likes: 1,912
From: Central MA
I have a 955 Cayenne.... I recently replaced the 380mm front rotors and they weigh 40+ pounds each. They are also a unique offset to the 2006 or 2010 cayenne turbo S so they are expensive. Those look like the 350mm cayenne fronts.