When dicing down a tight winding road I realized my 12 6-Speed car has very little engine braking in second gear. It's as if emission controls prevents the car from falling to idle quickly.
How do I defeat this "feature"?
Use the brakes, they are the cheapest wearable part to replace, especially when contrasted to synchronizers worn by down shifts.
Agreed that brakes are relatively inexpensive consumables. However this seems more like Tiptronic in D levels of engine braking. While driving in second gear at 45 mph and I go off throttle the car leisurely slows down.
Try touching the brakes.
I am guessing coming off the gas tell the car you want to coast, but touching the brake gives the car more information.
I am not sure, but a lot of traditional automatics use the brake input to decide if engine braking is wanted.
True. But this is a manual.
Could still do the same thing..
Chat GPT has thoughts. Anybody have opinions on its solution? I'm not chasing hp or pops and burbles, just trying to get the 1980's engine response of my beloved 944.
Your 2012 Porsche Boxster (987.2) has
rev hang
mainly due to
drive-by-wire throttle control and emissions programming
. Here’s how you can reduce or eliminate it:
1. ECU Tune (Best Solution)
• A custom ECU tune can
remove rev hang
by modifying throttle response and fuel cut-off behavior.
• Options include
Cobb Accessport (if supported), Softronic, or a custom ECU flash
from a Porsche tuner like Fabspeed or DME Tuning.
For eliminating
rev hang
in your
2012 Porsche Boxster (987.2)
, here are the best ECU tuning options:
1. Softronic ECU Tune (Best Overall, Plug & Play)
✅
Pros:
• Flash tune via OBD-II at home, no physical ECU removal.
• Removes rev hang, improves throttle response, and increases power (~15-20 HP gain).
• Can revert to stock anytime.
You might want to chat with Scott at Softronic. He might immediately understand what you want.
I have the Softronic tune on my
987.2
with 3.4. When I downshift and let out the clutch, the engine revs just match the speed of the transmission. I don’t think I’m feeling any fuel being applied when my foot is off the gas pedal. Could it be that the 9A1 is simply a freer revving engine than your 944 so it naturally has less engine braking?
This has a definite feel of software making it's own decisions. I've driven lots manual trans cars and sport bikes, and this is artificial. Thanks for the name at Softronic.
You should be matching revs to minimize synchro and clutch wear.
Way back in the early days of emissions control some cars limited the speed of throttle closing to prevent a burp of unburned hydrocarbons. Maybe the same thing is being done electronically instead of mechanically now.
