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YOUR RESEARCHH&R Sport Springs - Feedback?
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Install 4 years and 3 summers of tracking my c4s
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I have just the spings installed for 4 years and 3 summers of tracking my C4S.
Leading evidence: 'Install 4 years and 3 summers of tracking my c4s' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is '4-5 hour job' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Adjust driving style' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Then I installed H&R springs and kept the stock shocks.
Replace because my front left strut was leaking and needed
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I swapped because my front left strut was leaking and needed to be replaced.
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I recommend going for used GT3 suspension (fully height adjustable).
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Suggestion
Have you tried adjusting your driving style to address scraping issues to make sure you're taking all big transitions at an angle?
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Suggestion · Original poster
I have this question - I recently bought the H&R Sport Springs and was going to install them - after talking with my oil change guy at Porsche he said that it is low enough and would really give it a bumpier ride, and ultimately I wouldn't like it as much as the current set up.
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I have a stock suspension currently, and am already scraping some areas due to the new bumper I just installed. I have this question - I recently bought the H&R Sport Springs and was going to install them - after talking with my oil change guy at Porsche he said that it is low enough and would really give it a bumpier ride, and ultimately I wouldn't like it as much as the current set up. I already complain about the Minnesota roads being too bumpy as it is....I can already feel everything pretty good.
I guess I am looking for feedback from people who have put the Springs on - is it REALLY that much bumpier once the Springs are installed? Does it REALLY drop it 1 full inch? Just curious - I am now thinking I might sell the H&R springs and skip this mod!
Thanks!
On the ride side It's not a drastic difference in ride quality from stock to the H&R's...and if you've already got the M030 package on your car the published spring rates for are almost the same for the H&R's. The dampers may be in a slightly different area of the curve which could make the ride a bit stiffer but I'd bet you hardly tell a difference at all. Here are the published spring rates for comparison sake. At most you're looking at an increase of 30lb/in front and 60lb/in rear. To put things in comparison I've currently got 915lb/in rear springs on my car and my wife daily drives it more than me and doesn't complain about the ride. My car Had H&R springs on the US M030 dampers for the first 5000 miles that I owned it before I switched to a more serious setup. The H&R's were too close to stock for me.
Stock rates 146 F / 203 R
M030 rates (ROW AND US) 170 F / 260 R
H&R Springs (progressive) 170-210 F / 230-260 R
As for the bumper clearance. Have you tried adjusting your driving style to address scraping issues to make sure you're taking all big transitions at an angle? I'm below GT3 ride height with the Aero I front bumper and splitter on there and never have rubbing issues as long as I'm aware of my surroundings and take transitions at an angle.
**I'll put a disclaimer out there though. Everyone has a difference in what they feel is acceptable when it comes to NVH. What is acceptable for me may not be for you.**
Andy
Another thing is that I was hoping to be able to drive it this winter, but that would require winter tires and wheels...more $!
If I choose to lower the car, my guess is that I would basically be putting it to bed all winter since the snow can get pretty high here in Minnesota...
so not to jack this post, the info will help him if he wants to do the job too...
What all is required for this job (ie... springs only and go, or do you need new struts and sway bars, drop links yadda yadda)
second, how hard is the swap, (ie... a weekend in the garage, or take it down and spend money at the indy shop, and how much aprox?)
both of these bits of info would be helpful to have...
Thanks for your time!!
PS PM Reply sent ....
To do the spring swap...all you need is the springs as they're a direct replacement for the stockers.
If you've got access to a spring compressor (you can "borrow" them from most AutoZone's and Advanced Auto stores) and a pretty standard selection of tools you can do the spring swap yourself. Probably a 4-5 hour job on your own. There's a good write-up over on Renntech for the M030 install that will give you the basics on how the suspension comes apart and goes back into the car.
Car will need an allignment no matter what when you're finished so don't forget to account for that spending.
Andy
and it lowers it about an inch from stock... That sounds good. I am sure there will be added "bump" factor but that is not an issue for me, the wife however already gets "tired" when riding ini the car, so she is not part of my equation
What is it that you are trying to accomplish?
yes, the springs will drop the car and stiffen it up as well... also it will decrease the life of your damper (shocks)...
Its not really advised to install the springs, because there are handling issues with this. You are lowering the car, which shortens the shock travel, and compresses the shocks...so with just a little bump, the shock tries to push back to its normal position, which is higher than the lowered height then it comes back and rests at the lower ride height. So the shock compresses on bump hit, then EXPANDS back to STOCK ride height and the settles on lowered ride height. Its called the Pogo effect and it does it very fast, and creates a floating feeling in the front end especially on high speed corners....its not confidence inspiring. So the key is to get shocks and springs designed to lower cars.
In my research you're correct on the stock non sport shocks, but I think guys with the M030 shocks will be fine. I tracked mine for the whole first year I had it on the stock M030's and H&R springs and never had any ill effects. I was actually suprised at how well the car did with a pretty simple setup under it.
How is the ride? Bumpy?
Also, how might I find what shocks I currently have? Not sure I have the non-sport or sport stock shocks...but people have commented that the car sits a bit low already...?
Color'd dots on the springs, shocks and sway bars should tell you. but I can't remember which color for the life of me. Green maybe. Do a search and you should be able to find out pretty easily.
oh man, I hate to admit it but my shocks (struts) are ALL brown with road muck... however, I will also look for this color dot as I have no idea whats under my ride (AND the sticker has gone for a walk-about after someone repainted the underside of the hood)
Thanks, this is good
Ed
Yes, great information. I will also take a look when I get back to the car later today. If anyone knows the colors and what they mean, that would be greatly appreciated.
Following this really great link (THANKS Tim K.!) I found a huge amount of info, I read quite a bit and with the color coding dots I found out not only do I have the USA Standard suspension, but it really needs to be changed...its old, worn out and ugly ride height have me wondering what to do....
These H&R springs are not going to do me any good, so I either need a new set of struts and springs or a new set of struts and use the old springs...
Keeping cost down will be important and not ending up spending 20 less than I could have to get something really great is too... I am opting out of this thread as I fear I have "jacked" it and will start a new...
Ed
I have the H&R's under/in my P for about 2 1/2 years and never looked back...without them the P was pretty "floaty" in the front at higher speeds....NOW NO MORE!! is GOOOOD!
AND the P looks much better!! LOWER, which is GOOODD...BUT I have to admit that my front bumper gets "raped" by every (t) ramp at every entrance/exit at gas stations and parking lots and speed bumps in the greater LA area!!! BUT you get used to it and you will slow down A LOT because the sounds makes your heart stop!!
I started with the US stock suspension. SUV height and floaty feel at higher speeds. Then I installed H&R springs and kept the stock shocks. Nice and low but rid quality was not that great. However, I would have not know if I'd have kept this set-up but I felt that the shocks became my weak point, especially on the track so I got a used GT3 suspension. What a change! The ride is much more balanced (you can even call it smoother) than the H&R springs on stock shocks and it's fabulous on the track! Looking back, I've to say that the spring only exchange is bad advice and as labor is the same for changing the springs or spring/shock combo. I recommend going for used GT3 suspension (fully height adjustable). There are lots of GT3 guys out there that upgrade to Motons so there are always some sets available for a reasonable price.
However, if someone wants my used H&R springs, I still have them so send me a PM!
I swapped because my front left strut was leaking and needed to be replaced. On a C4, the front struts are very different than for a C2 and are thus way more expensive to replace. Since you replace the struts in pairs, the total cost was going to be around $800 for two struts. However, a complete Porsche ROW Sport Suspension kit is just under $1000 and that kit includes: 2 struts, 2 shocks, 4 springs, front&rear sway bars, and all hardware/bushings. I couldn't pass up that great of a deal so I now have a full set of H&R sport springs in my garage with only 500mi on them. So there you go....
Sunset is where I got them but expect a long wait (3 weeks) since they order the ROW versions from Germany; worth the wait. Don't get the US version since they are a toned down version.
http://www.sunsetimports.com/team.php?tid=1
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