Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 1
991 : 2011-2019 0
997 : 2004-2012 1
996 : 1997-2005 31
993 : 1993-1998 5
964 : 1989-1993 2
Carrera 3.2 : 1983-1989 3
Carrera SC : 1977-1983 1
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 0
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 22
Cayman : 2005- 14
Cayenne : 2003- 2
Macan : 2014- 2
Panamera : 2009- 1
912-914-924-928-944-968 1
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
M96
Newbie


Joined: 15 Oct 2017
Posts: 9



PostPosted: Sun May 12, 2019 8:00 pm    Post subject: Lowering Springs or the Full Monty Reply with quote

Good evening 911UK wisdom.

Ok, so it’s another which suspension upgrade question (sorry).... I know there have been many already, but can’t find one that answers some specific queries I have..

Currently have fairly fresh m030 with a good geo on the vehicle, and while it’s not the last word in chassis dynamics, I’m generally very pleased with the way it drives as a “fast road” car.

However, while the performance is all good, I fancy a slight drop in ride height, and wouldn’t mind it being a little more focussed if that was an associated by-product.

My initial thoughts were Ohlins, but given that the hardware fitted currently is pretty fresh and, while I know Ohlins would be superior, I am not hankering for anything better right now.

This has led to mulling over some H&R lowering springs as a (much) lower cost experiment...

However, I do have some concerns which I thought some people may already have some interesting insights on...:

1. Are the spring rates broadly equivalent to m030 springs, as I have seen some info suggesting they are actually lower...
2. Is bottoming out a concern (particularly if the spring rates are lower than m030..)
3. Do people think they are a reasonable match to try

I realise this set-up is ultimately compromised to a proper coilover set-up, but just trying to avoid my quest for a slightly lower ride height making the car dreadful to drive!!

Any advice would be much appreciated!

Cheers,

M96
 
  
View user's profile Send private message
   
Pageeey
Newbie


Joined: 17 Aug 2018
Posts: 26



PostPosted: Sun May 12, 2019 8:51 pm    Post subject: Reply with quote

Just get Ohlins and be done with it... is that helpful..? Wink
 
  
View user's profile Send private message
   
911munKy
Montreal


Joined: 26 Nov 2014
Posts: 529



PostPosted: Sun May 12, 2019 9:13 pm    Post subject: Reply with quote

I did a did a major suspension overhaul to my C2 a few years ago and also fitted the M030 kit, last year I then fitted Eibach -30mm lowering springs so I feel qualified to reply.

1. My Eibach springs (similar to H&R) are progressively wound, rather than linear like the M030. The rates are not advertised but they are softer than M030 initially and firmer at the end of the travel. This is a good thing for road use, the new springs are more compliant and bumps/pot holes feel less harsh.
The springs are advertised as -30mm over standard, the M030 were supposed to be -10mm however I reckon that they were more like -3 or 5 mm Lower as the original springs had sagged over 15 years.
Note that Eibach springs may give more than -30mm drop at the rear which MAY cause issues with geometry alignment as they create excessive negative camber unless you also buy adjustable rear Toe arms (~£230) to correct this.
I also fitted a 10mm aluminium spacer to raise the rear ride height and had the car geo set to X74 spec.
2. No the car will not bottom out with road use even with passengers, I haven’t had a problem with speed humps either and only need to be careful when pulling up to a high front curb In a parking space.
3. Very good combination with the M030 dampers,try it first before spending more money. Just allow for the adjustable toe arms and a decent geo. Also change any other worn suspension components as many are past their best now.
_________________
2000 C2 996
 
  
View user's profile Send private message
   
Jamesx19
Nürburgring


Joined: 10 Jul 2015
Posts: 456
Location: Brighton


PostPosted: Sun May 12, 2019 10:43 pm    Post subject: Reply with quote

I have H&R fitted to Bilstein B8 dampers and have also had them fitted to MO30.

As per 911munKy's experience with Eibach springs.

1. No bottoming out even at fast road speed on pretty hefty compressions.
2. Regularly take it for a fast strop over local B, C and unclassified roads which it takes on with aplomb. Car rides the potholes and bumps without throwing it off line and the damping never feels like it can't keep up. I don't hang about either.
3. H&R feels like it rides better than MO30 springs. (Subjective)
4. Geo may make more difference to the overall experience than what dampers and springs are fitted?

Can't comment on Ohlin's in comparison as I haven't tried a car back to back, but the initial cost is going to double once fitting and corner weight and setting up is added I'd have thought? Worth trying I'd say. If you decided to go the whole hog, you'd get most of your money back selling the springs on again

Good luck with it.
_________________
1998 C2 Manual + The Full Hartech.
 
  
View user's profile Send private message
   
DJones
Hockenheim


Joined: 01 May 2011
Posts: 658
Location: Hampshire


PostPosted: Mon May 13, 2019 3:20 am    Post subject: Reply with quote

I did just H&R springs to start off with and really didn’t like it, rear was ok but the front felt like it was riding on the bump stops.

I took them straight of and fitted PS10’s, transforms the car.

Whilst more expensive I’d go the full monty..

Hope it helps.

Darren
_________________
2002 996 GT2 recreation in Nogaro blue
2017 Ferrari 488 GTB Nero black
2006 Ford GT40 Gulf Racing colours
1994 AC Cobra 427 Guardsman blue
 



9EB6AB5C-198E-4DAE-872F-062FACC2977A.jpeg
 Description:
 Filesize:  515.68 KB
 Viewed:  878 Time(s)

9EB6AB5C-198E-4DAE-872F-062FACC2977A.jpeg


  
View user's profile Send private message
   
M96
Newbie


Joined: 15 Oct 2017
Posts: 9



PostPosted: Fri May 24, 2019 10:41 pm    Post subject: Reply with quote

Hi,

Just a note to say thanks for the views shared (especially Pageey, who almost managed to invoke some reckless finger clicking 😂) and that I went with H&R lowering springs as an experiment, and i’m really happy with the results so far...

The car is approx 15-20mm lower than where it sat on the reasonably fresh m030 springs and new springs feel very similar to the m030 (possibly ever so slightly softer, but very marginal) so therefore still nicely matched with the already fitted damper rates.

For anyone who already has fairly new m030 fitted (and therefore don’t need to factor damper replacement into the overall cost), and wants a ride height drop, I wouldn’t hesitate to advise this set-up on a 996.1 c2.

Also - I went with a slightly more aggressive geo, but factory settings would also have been possible within the adjustment available.

Cheers
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum