Does the C2 have a LSD?
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Racer
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Does the C2 have a LSD?
I'm getting everything finalized on my build and somehow just now realizing the C2 does not have a LSD?
Is this something I should be concerned about? There are no C2s anywhere near me yet, nor any 911.2 C2s, so I'm just going on what I've read regarding the differences between the base car and the S trims that I've driven.
Is this something I should be concerned about? There are no C2s anywhere near me yet, nor any 911.2 C2s, so I'm just going on what I've read regarding the differences between the base car and the S trims that I've driven.
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It appears not to have an LSD.
PTV+ is available as a $1500 option on the C4, but it is not currently available for the C2. It's standard on the both the C2S and C4S models.
PTV+ is available as a $1500 option on the C4, but it is not currently available for the C2. It's standard on the both the C2S and C4S models.
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Racer
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I think I saw it mentioned somewhere but kind of ignored it. Originally I was going to get a C4, than switched to the C2, now concerned about not having a LSD. All these options and different trims are driving me insane, if only I could afford a C4S.
I suppose I'm unclear how much of a difference a LSD would make with the 911. Also confused why it's on everything except the C2.
I suppose I'm unclear how much of a difference a LSD would make with the 911. Also confused why it's on everything except the C2.
Last edited by GratedWasabi; Jan 22, 2020 at 04:16 PM.
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I'm getting everything finalized on my build and somehow just now realizing the C2 does not have a LSD?
Is this something I should be concerned about? There are no C2s anywhere near me yet, nor any 911.2 C2s, so I'm just going on what I've read regarding the differences between the base car and the S trims that I've driven.
Is this something I should be concerned about? There are no C2s anywhere near me yet, nor any 911.2 C2s, so I'm just going on what I've read regarding the differences between the base car and the S trims that I've driven.
Since the new cars have a pretty sophisticated Traction Control setup (electronically mimics LSD), the missing LSD may not be tragic. But, any serious sports car should have a real LSD in my opinion (particularly if driven on track). Note: some pretty serious cars don't have one though (like McLaren).
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I've driven my C2 base model about 1500 miles now and not missed the LSD. But then I do drive it fairly gently. I went very easy on the options and, with the benefit of hindsight, the only thing I'd reconsider is a seat upgrade.
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Improved traction, only one wheel driving/spinning, so coming out of a corner, starting from a stop, rain, snow etc. IMO it is unacceptable for Porsche to not put a LSD in the 'base'. It is a $100k+ 400+ hp RWD sports car. I have had a couple RWD sporty cars in the past that didn't have one and it was annoying because traction control was always kicking in.
I wonder if the aftermarket will come to the rescue? You can usually pickup high quality differentials for other makes between $800-$2000
Some good videos of how they work, advantages etc
https://www.youtube.com/results?sear...p+differential
EDIT
Looks like OS Giken (Japanese racing company) makes one to convert 991 open diff to LSD so it might be possible. I would want one from Quaife in the UK. They can probably make something really nice and streetable.
https://flat6motorsports.com/product...dk-991-997-987
I wonder if the aftermarket will come to the rescue? You can usually pickup high quality differentials for other makes between $800-$2000
Some good videos of how they work, advantages etc
https://www.youtube.com/results?sear...p+differential
EDIT
Looks like OS Giken (Japanese racing company) makes one to convert 991 open diff to LSD so it might be possible. I would want one from Quaife in the UK. They can probably make something really nice and streetable.
https://flat6motorsports.com/product...dk-991-997-987
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Racer
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Are we just talking on a track here? Or hard road driving as well?
With PSM on the car still effevtively has an eDiff, no?
I drive it like a Porsche, but no track use. So probably maxing at 7 or 8 out of 10.
With PSM on the car still effevtively has an eDiff, no?
I drive it like a Porsche, but no track use. So probably maxing at 7 or 8 out of 10.
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Also, Porsche uses a Clutch-type LSD on all its 911's (for over 50 years) and this type of LSD (as specified by Porsche) actually has more locking under braking than on acceleration, so there is a big improvement to stability under braking (doesn't wag its tail). Other types of LSD's (like Torque Biasing Diff) do not provide this important benefit.
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Frankly, this is a deal-breaker for me re: base C2. I had no idea a $100K-plus RWD sports car would be equipped with an open diff, WITHOUT the ability to option LSD. (Brake-based torque vectoring doesn't count in my book. It's a poor substitute, at best.)
I've owned several high-horsepower RWD cars. All had limited-slip differentials as standard, or optional. (If it was the latter, I optioned it. I would not consider buying otherwise. I've driven a few open-diff RWD cars in various iterations, and was uniformly disappointed in traction dynamics. Every. Single. Time.) Even had two FWD performance cars with limited slip diffs -- one was a viscous type, the other Quaife.
I digress. The point is, fellas, THANK YOU for pointing this out regarding the C2. You cost me at least $7K to run up the chain to a C4, or $16K / $23K more for a C2S / C4S. I despise Porsche's marketing / sales / option practices. But I love their cars, and need another one. They just slid another chunk of cash out of my pocket with this revelation. Effers.
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Agree with others -- it's definitely both, and then some. A good limited-slip differential will help the car accelerate in a straight line and out of turns in dry conditions; wet conditions; snowy conditions; you name it, depending on how you're driving and what those conditions are. This is not P-Zero Corsa Trofeo track-specific stuff here. It's basic RWD vehicle dynamics. Plus, who wants to play hooligan from a standstill and leave a 1 instead of an 11 on the pavement? Embarrassing.
Frankly, this is a deal-breaker for me re: base C2. I had no idea a $100K-plus RWD sports car would be equipped with an open diff, WITHOUT the ability to option LSD. (Brake-based torque vectoring doesn't count in my book. It's a poor substitute, at best.)
I've owned several high-horsepower RWD cars. All had limited-slip differentials as standard, or optional. (If it was the latter, I optioned it. I would not consider buying otherwise. I've driven a few open-diff RWD cars in various iterations, and was uniformly disappointed in traction dynamics. Every. Single. Time.) Even had two FWD performance cars with limited slip diffs -- one was a viscous type, the other Quaife.
I digress. The point is, fellas, THANK YOU for pointing this out regarding the C2. You cost me at least $7K to run up the chain to a C4, or $16K / $23K more for a C2S / C4S. I despise Porsche's marketing / sales / option practices. But I love their cars, and need another one. They just slid another chunk of cash out of my pocket with this revelation. Effers.
Frankly, this is a deal-breaker for me re: base C2. I had no idea a $100K-plus RWD sports car would be equipped with an open diff, WITHOUT the ability to option LSD. (Brake-based torque vectoring doesn't count in my book. It's a poor substitute, at best.)
I've owned several high-horsepower RWD cars. All had limited-slip differentials as standard, or optional. (If it was the latter, I optioned it. I would not consider buying otherwise. I've driven a few open-diff RWD cars in various iterations, and was uniformly disappointed in traction dynamics. Every. Single. Time.) Even had two FWD performance cars with limited slip diffs -- one was a viscous type, the other Quaife.
I digress. The point is, fellas, THANK YOU for pointing this out regarding the C2. You cost me at least $7K to run up the chain to a C4, or $16K / $23K more for a C2S / C4S. I despise Porsche's marketing / sales / option practices. But I love their cars, and need another one. They just slid another chunk of cash out of my pocket with this revelation. Effers.
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I had no idea a $100K-plus RWD sports car would be equipped with an open diff, WITHOUT the ability to option LSD. (Brake-based torque vectoring doesn't count in my book. It's a poor substitute, at best.)
I've owned several high-horsepower RWD cars. All had limited-slip differentials as standard, or optional. (If it was the latter, I optioned it.
I've owned several high-horsepower RWD cars. All had limited-slip differentials as standard, or optional. (If it was the latter, I optioned it.