left pull - at full throttle gear shifts ?
08-16-2018, 01:13 AM
#1
left pull - at full throttle gear shifts ?
Hi All,
Im a new owner and new to Porshe's so im not sure if this is typical behavior.
At full acceleration the car lurches to the left when shifting gears ?
Shifts are sharp and hard which is awesome!
But that little pull is annoying.
My rear tires ARE bald so this may be the cause. I hope.
2014 s cab
pdk
sport +
sport exhaust
Thanks
Im a new owner and new to Porshe's so im not sure if this is typical behavior.
At full acceleration the car lurches to the left when shifting gears ?
Shifts are sharp and hard which is awesome!
But that little pull is annoying.
My rear tires ARE bald so this may be the cause. I hope.
2014 s cab
pdk
sport +
sport exhaust
Thanks
08-16-2018, 04:53 AM
#2
Nordschleife Master
why are you driving with bald tires?
08-16-2018, 11:35 AM
#3
I think you've answered your own question. You say you have bald tires - so think where the power is going when you engaging the clutch at full acceleration - to the bald tires that have no grip!
08-16-2018, 11:46 AM
#4
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Tires
Tire pressures
Alignment
Motor mounts (not so much a 991 issue)
Tire pressures
Alignment
Motor mounts (not so much a 991 issue)
08-16-2018, 01:02 PM
#7
Rennlist Member
Yep, definitely not normal, but almost certainly explainable by your tires. Maybe the steel belt grinding into the pavement on one side is giving it extra bite 
. But also possibly due to misalignment which might then explain the tires, especially if they are uneven side-to-side.
I would also considering going ahead and having the Porsche dealer do an alignment, especially if there is any of the typical signs of out-of-alignment wear. I wouldn't get an alignment at any regular shop for sure. The Porsche dealer will almost certainly have a top-of-the-line Hunter machine and all the proper knowledge and settings for your particular car.
. But also possibly due to misalignment which might then explain the tires, especially if they are uneven side-to-side.I would also considering going ahead and having the Porsche dealer do an alignment, especially if there is any of the typical signs of out-of-alignment wear. I wouldn't get an alignment at any regular shop for sure. The Porsche dealer will almost certainly have a top-of-the-line Hunter machine and all the proper knowledge and settings for your particular car.
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08-16-2018, 02:22 PM
#9
Rennlist Member
Essentially your stability management is digging for traction. Since it's tuned for tires with tread it will dig around more than usual in low traction situations like hard acceleration. It's probably cutting power or braking causing that lurch.
08-16-2018, 02:23 PM
#10
RL Community Team
Rennlist Member
Rennlist Member
Not normal.
08-22-2018, 02:30 PM
#11
update --
i stuck with the stock wheels -- and got mitchellin ps4's yesterday ...
the car is glued to the road now - no bouncing - pulls hard and straight ...
its also quieter and accelerates harder now that theres grip ...
amazed ..
-A
i stuck with the stock wheels -- and got mitchellin ps4's yesterday ...
the car is glued to the road now - no bouncing - pulls hard and straight ...
its also quieter and accelerates harder now that theres grip ...
amazed ..
-A
Last edited by afk; 08-22-2018 at 02:47 PM.
08-22-2018, 04:00 PM
#12
Rennlist Member
Great news on the win/win/win/...! Thanks for the update.
