-20mm suspension on GTS: Yes or No?
-20mm suspension on GTS: Yes or No?
Author
Discussion

MATT993

Original Poster:

28 posts

174 months

Tuesday 7th February 2012
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Getting close to build date for a GTS4 and will have to finalise the spec once and for all.
Having second thoughts about going for the -20mm sport suspension.
Anyone lived with this option for a while?
Would you go for it again, or stick with the standard setup?

spareparts

6,796 posts

253 months

Tuesday 7th February 2012
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Standard PASM set up with option of SPASM on demand already makes the car too hard for road use.

-20mm option looks good, but I think it would compromise the ride too much for English roads. Only reason to choose it is aesthetics imho, but it comes at a cost.

khooni

2,089 posts

231 months

Tuesday 7th February 2012
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wow they are still allowing spec changes for GTS4s? they stopped that on caymans and boxsters a while ago

Blue62

10,410 posts

178 months

Tuesday 7th February 2012
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I've got it on mine and it is rock hard, but I wouldn't change it biggrin

crystalmethod

1,299 posts

205 months

Tuesday 7th February 2012
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Blue62 said:
I've got it on mine and it is rock hard, but I wouldn't change it biggrin
Thank fk I haven't got it on mine then. It does look great though...

rimkah

1,057 posts

192 months

Tuesday 7th February 2012
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Arches need to be filled -20mm

betternotbigger

1,059 posts

201 months

Tuesday 7th February 2012
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I have it. No it isn't rock hard. Just tight and focused. But sensitive to tyre pressure and type. Ride is better on Michelin PS2s than on Bridgestones and Pirellis owing to the more compliant sidewall/compound. Standard PASM suspension on PS2s is a tad wallowy IMO and Sports Susp -20mm puts it about right.

Looks the absolute dogs. So low and mean yet not too low for speed bumps. And you really notice the lower centre of gravity. I drove mine to the Lakes and back today (2hrs each way) for an ice climb and it was a dream, not harsh at all, though I am on snows at the mo'. Handles so well on icy roads.

You can iron out a lot of harshness in the ride with a good alignment from CofG or similar. I do mine every April when the summer tyres go back on. Makes a real difference.

If you want the car to feel focused I'd say go for it (and I did) but be warned you won't go hunting potholes.

drpep

1,761 posts

194 months

Tuesday 7th February 2012
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>> -20mm suspension on GTS: Yes or No?

Yes. I could give you some waffle and adjectives as to why, but ultimately; Yes.

Edited by drpep on Tuesday 7th February 23:31

MATT993

Original Poster:

28 posts

174 months

Wednesday 8th February 2012
quotequote all
Thanks for the replies.
Looks like I'll be sticking with the -20mm.
I understand that the springs and roll bars are changed to achieve the additional 10mm drop, would not be an impossible job to change it back to standard if required in the future. A straightforward job for CofG, although I am up in Scotland!


Blue62

10,410 posts

178 months

Wednesday 8th February 2012
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Agree with most of what 'betternotbigger' says, especially tyre pressures, but have to beg to differ on the 'rock hard' point. I pleased I specced it because it's how I want my car to feel, but the ride is very firm, so be warned.

khushy

3,977 posts

245 months

Wednesday 8th February 2012
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forget -20mm, just add some 22" khan wheels instead!

Edited by khushy on Wednesday 8th February 10:41

MATT993

Original Poster:

28 posts

174 months

Wednesday 8th February 2012
quotequote all
That will be a no! But thanks for the suggestion!!
GTS4 spec is locked now, so -20mm it is. Should be picking it up in April. Can't wait!

betternotbigger

1,059 posts

201 months

Wednesday 8th February 2012
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Blue62 said:
Agree with most of what 'betternotbigger' says, especially tyre pressures, but have to beg to differ on the 'rock hard' point. I pleased I specced it because it's how I want my car to feel, but the ride is very firm, so be warned.
What tyres and pressures are you running?

On snows at the recommended 34 and 37 (normalised to 20 degrees C which at today's temps is 30 and 33) mine is quite soft and compliant. Certainly at least as comfortable as a standard C2S 997.2.

On the factory Bridgestones I find it's worthwhile dropping the pressures by about 2 psi for a more compliant ride. But I don't rate those tyres much anyway apart from for steering feel (excellent in this regard!) so will be swapping in March to Michelin Supersports which won't invalidate warranty for another 18 months and hopefully be N rated by renewal time.

Blue62

10,410 posts

178 months

Wednesday 8th February 2012
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I'm on Bridgestones and I've messed about with pressures, currently running 2 psi less at the front but left the rears as per handbook. The steering is just about the best of any car I've owned, certainly the best 911, not sure how much of this is down to the tyres yet though.

betternotbigger

1,059 posts

201 months

Wednesday 8th February 2012
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Blue62 said:
I'm on Bridgestones and I've messed about with pressures, currently running 2 psi less at the front but left the rears as per handbook. The steering is just about the best of any car I've owned, certainly the best 911, not sure how much of this is down to the tyres yet though.
Steering feel is superb with the Bridgestones, better than other brands I find. And I think you'll find a big difference to comfort letting 2psi off the rears. But they are very noisy tyres and don't grip as well as Michelins in wet or dry. So I'll be swapping to Michelins in the spring. I only keep my cars a couple of years and I'd like to experience the highpont in the cooking 997s evolution with the finest rubber on board.

Great car isn't it? Have CofG do an alignment after 10k miles and see what a proper setup does for grip AND comfort!!

Blue62

10,410 posts

178 months

Wednesday 8th February 2012
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Sounds like good advice, I will reduce the rears this weekend. On the basis that I may one day get to 10k, who is CofG?

MATT993

Original Poster:

28 posts

174 months

Wednesday 8th February 2012
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Good info on tyre setup.
CofG : Centre of Gravity
Look up 911uk.com, there are plenty of threads there about this guy, seems he knows a thing or two about 911 setup!

Magic919

14,282 posts

227 months

Wednesday 8th February 2012
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It's actually Center Gravity. Gawd knows why.