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997.2 lowering the stance

Edwos

Trainee
Joined
1 Jan 2016
Messages
77
Hello all,

I know this is another of those topics that gets thrown around at length, but is it possible to get a generic, simple and straight forward thought process on how to remove some of the airspace between rubber and wheel arch on my '10 plate 997.2 PDK cab with Sp Chrono and PASM.

I don't want it slammed, but feel that a slightly more sporty aesthetic would be gained by losing I guess 10-20mm. And therefore I imagine I'll need spacers to complete the look. 5mm and 15mm respectively?

I don't want to have the harshest of rides as this car isn't being tracked. And I want to retain PASM on/off benefits. So, Tech Art?

All guidance most welcomed and appreciated. Cheers
 
My view is that H&R sit a touch too low. I'd imagine scrapages become a feature of everyday life.
Eibach seem to be a much more settle adjustment.
Go and Google the different stances on both and see what you prefer.
 
997.2 Carrera S with PASM and now have H&R springs fitted with Fast Road Geo. I'm happy with the drop.

Before and after pictures included

Clearance is ok. There are plastic flaps in front of the front wheels that scrape on very high speed humps.
 

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Forgot to mention spacers

Due to aggressive Camber in the front to dial out understeer on the Fast Road Geo, I had to use 15mm spacers to get the wheels to sit correctly in the arch

6mm Porsche Spacers in the rear
 
DSC controller will sort PASM harshness. This was the biggest transformation to the feel of the car (no longer crashy, great ride an complements the springs)
 
Mine's a gen 1, but I wanted to lower it to look 'right' rather than 'stanced'. Went with eibach pro-kit springs to achieve that. There's enough adjustment in the stock componentry to be able to get a stock geo setup with the eibachs which suits me too. Car has pasm.
 

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And here's the current stock stance

Just being PPF'd. But you can see the current stance.
 

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I'll give it a go. Assuming you have standard rims and tyres.

1. install lowering springs all round from H&R, Eibach or Techart. Apparently H&R are a little bit lower but it's a hearty discussion with a number of different camps, brigades and tribes.

2. install spacers, typically 7mm up front and 15mm in the rear. Same comment as to tribes, brigades, etc.

3. [optional] install DSC magic box to upgrade the PASM software, if you've got the money and like ride comfort

4. get an alignment, but bear in mind that added negative camber will bring tops of the tyres inboard, and reduce the flush/stance effect, so you'll need to take an holistic approach as to what you want to achieve, on a sliding scale from "handling" to "looks".

NB Bear in mind that other suspension and other parts may need to be replaced if they are past it and you've gone to Centre Gravity for the set up.
 
Everyone will give you a different opinion based on what they run but I have been through two sets of different springs on a gen 1 cab so my thoughts are as follows.

1. Spring options are as Max A says, H&R are the lowest but I have not tried them but i am sure someone will be on to give a review but from what i read i didn't want to go that low. I have had Eibach Pro kit on a cab and they felt good on the road if not better than OEM but the drop was good on the front but the back was still too high and the stance was not even. I now have Techart which also, are just as good as the OEM / Eibach for ride, but the stance is much more even front to back than Eibach but not so low that the wing is down on the rubber of the wheels, if anything the arch gap looks even all round the wheel. Techart will cost the most out of the three though, Eibach are the cheapest I think as you can normally get them on Autodoc but I can't see them on the site atm.

2. The spacers I run depends on the wheels, if I have the OEM ones on the car I go 7mm front 15mm rear, that said I have swapped wheels over the years so I change the spacers depending on the offset as I have a set of 5mm spacers as well. Probably best to lower the car then buy spacers based on how far you want to push your wheels out.

3. If you really want to improve your ride get a DSC module, it transforms the PASM from being crashy and also gave me more confidence, have a read of the threads on this as there is much better longer reviews. They do cost a lot to buy but the re-sale is also just as high so you will get most of it back if you buy a new one and if you manage to find second hand one you will probably sell it for what you bought it for.

The two photos below are of my old Black cab on Eibachs with OEM wheels 7mm front and 15mm back spacers.

The other photo of my Grey cab on Techart, the wheels are GT3RS wheels which have a different offset than the standard so are only on 5mm spacers but the stance is the same as the OEM wheels.
 

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When I've used springs (H&R, Eibach, etc) with OE dampers in the past they have felt decent at first, but over time the ride tends to become crashy. It's been a gradual effect, so not immediate apparent. Decent coilovers are the only way to go, to get a better ride, that is more performance based and allowing you to set the ride height as you like.

My primary objective is to increase the driving dynamics, so I generally leave the ride height to be set at the point of geo and have it corner balanced (which you can't do with springs, unless you use KW or MSS adjustable spring (which I don't think they offer for our cars, could be wrong)). I also uprate the ARB's front and rear and add relevant spacers.

This picture is prior to geo, but is on Bilstein B16 damptronic (retains the PASM feature), with Eibach ARB's and 7mm front / 15mm rear spacers. I will add the DSC controller at some point.

That said, Centre Gravity advise TechArt if you just want springs, but they won't perform as well as decent coilovers.
 

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On H&R spring with 15mm rear 7mm front spacers
 

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H and R springs plus Spacers.

Just installed last week (with a few other things) followed by Scott@Bahnsport doing Fast Road geo set up...
Code:
 

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