718 LSD type?

Author
Discussion

OldBoxster

Original Poster:

7 posts

16 months

Thursday 21st September 2023
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Hi there I'm new to PH and to Porsche. I ordered a 2 litre Boxster in March 2022 and at last it's in production albeit the factory won't emit it till early November 2023 due to pars shortages.I just hope I get it before the Grim Reaper gets me... Anyway, I specced PTV and I can't find what type of LSD I'll be getting - anyone know?

LiamH66

801 posts

96 months

Thursday 21st September 2023
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Mechanical, I think "torsen". I think they're nice, really unobtrusive, but definitely work. I'm less convinced by PTV on the road (sometimes feel it gets me more turned in than I want to be at speed), but it works well on the track. You can't have a factory LSD without PTV, so I'm just about to take delivery of my 4th Cayman (3rd 718), and they have all been specced with PTV for that reason.

Liam

jackwood

2,642 posts

213 months

Thursday 21st September 2023
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It will be a plated diff. Not a TBD. Porsche don’t use them.

LiamH66

801 posts

96 months

Thursday 21st September 2023
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jackwood said:
It will be a plated diff. Not a TBD. Porsche don’t use them.
Correct, my mistake. Just noticed on Design 911 that uprated diff friction plate packs are available for track use. As plate diffs go, they are not particularly savage.

Liam

OldBoxster

Original Poster:

7 posts

16 months

Thursday 21st September 2023
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Many thanks guys. I'm not sure I'll be tracking the Boxster - but perhaps I'll take a trip to Nurburg for old times' sake as I used to take my bikes there a couple of times a year. Strangely, lapping in my head sends me off to sleep...

LiamH66

801 posts

96 months

Thursday 21st September 2023
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When I was ordering my first 718 Cayman 2.0, back in 2016, I specced it with PASM, PTV, and 18" wheels. The sales advisor asked if that was because I was going to be using it on track, and maybe 20" wheels might be a better option. Reality was that I just wanted it to be a good sports car on the road (and it really was that!) The idea of a sports car with a bit of grunt, but with an open differential just didn't work for me. Nor did low profile tyres on rural Lancashire roads.

Not much has changed since then. The new 4.0 C GTS I'm collecting tomorrow has all of that, but on 20" wheels as standard. As soon as it turns colder and wetter, I have a set of 18" wheels on good winter rubber to see me through until the weather cheers up.

Hope you enjoy your one when it turns up. I thought a lot about what type of LSD my first one might be delivered with back in 2017. After the car arrived, it was shoved completely to the back of my mind, and in the next 3 I have bought, haven't really paid it much thought. I think that probably means whatever the precise design details, Porsche LSDs work pretty well!

Liam

LunarOne

5,687 posts

142 months

Thursday 21st September 2023
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I have a 981 Boxster S with PTV and before that I had a similar car without PTV. I must say that PTV makes quite the difference. When pushing on in wet conditions, it just goes rather than spinning up a wheel and on mountainous switchback roads, you can power through the bends without spinning up the inside wheel which would normally cause the traction control to rein in the power. And if it's your bag, you can also do ridiculous drifts or skids.

The car also handles differently too. This car also has PASM which I didn't have before, but the car just feels more predictable and sure-footed. A very worthy upgrade in my opinion.

On the Cayman/Boxster platform it's a mechanical diff with fixed slip ratio and brake assistance, while on the 911s PTV offers an electronically controlled variable ratio, also with brake assistance.

Klegal

66 posts

12 months

Friday 22nd September 2023
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PTV will chew through the rear pads a little faster than a car without if that’s of any concern.