What did you do to your 996TT today?
Three Wheelin'
Really the AFR side of tuning is easy and straight forward compared to everything else, engines are pretty tolerant of variances in AFR- way more robust there than many people think and not a ton of power to be gained across a fairly wide range of AFR. Just set your AFR targets and go through calibrating the fuel table until it is on the money.
Ignition timing is another story and abnormal combustion can kill an engine quick so thats where I like to go cell by cell, adding a degree at a time until I hit my torque target or torque stops making substantial increases with each degree or 2 (on the Mainline you can monitor wheel torque live and add timing and watch the measured torque go up or down with each change while holding rpm and load steady), or I pick up signs of knock on the ecu or on the headset (I use an audio knock detection tool in addition to the ECU knock sensors just in case).
That one is a Mainline Pro Hub actually but I think the Dynapacks are similar. Loved using it. So much easier than worrying about strapping the car down onto rollers and everything that comes with that and the way the dyno could manage load and limit rpm made tuning in each operating cell a breeze. Unfortunately, he sold it and moved out of state.
Three Wheelin'
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17ram2500 (08-21-2023)
Ohlins finally installed! Got the tarret rear links too. Only did a short drive last night, but the main thing I noticed is how much less squirrelly the rear is under WOT. Even in a straight line the car feels faster which goes against my intuition with a suspension upgrade, but makes sense. I’m at 10-10 now, and have the extenders, so will be playing with it later! I think we landed in 25mm drop and it’s peerfect.
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I've noticed a bit of squirrely-ness under WOT...maybe time to look at my suspension, and maybe some new tires wouldn't hurt...
I did PS4S recently and that helped a little bit with feeling more stable at wide sweepers, but the ohlins + tarret links like deleted it entirely.
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sdematt (08-22-2023)
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After my Ohlins install I noticed much more stability when blasting out of corners. And a weird sensation of being able to add more steering when cornering hard. Huge improvement.
Instructor
This sounds like maybe you had a bit of a rear toe issue before. Any idea where the alignment settings were before you made the suspension changes?
it was freshly aligned before to factory specs. I’ve been told the deletion of rubber from those end links is to credit for tightening up the rear
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Hmmm....might have to save up for a set of coilovers, other suspension components, tires, CSF rads....oh dear. There goes my renovation budget!
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