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-   -   H&R springs installed on stock shocks. What to expect? (http://forum.e46fanatics.com/showthread.php?t=975316)

zooswanko 03-09-2013 11:22 PM

H&R springs installed on stock shocks. What to expect?
 
Did a lot of research before deciding to try h&r sport springs on my stock e46 suspension. Found so many different oppinions that I just decided to do it and installed today.

How long til the springs settle 100%? The rears appear to be lower right now maybe because I had the front of the car up all day and leaning on the rear suspension.

Second question? What's your oppinion on installing the h&r sport springs (.75" lower in rear and 1.4" front) on stock suspension?

Turner motorsport says they are for stock suspension but I know others have different oppinions.

Any feedback is appreciated.
Thanks

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Adamo99 03-09-2013 11:30 PM

You're the one that has them installed. Why don't you report back in a week and let us know whether it works out well or not?

kaboo0m 03-09-2013 11:52 PM

bouncie bounciy kaboo0m! bigger bouncy bouncy bouncy

zooswanko 03-10-2013 10:33 AM

Ill keep you guys posted. I know other people have done it but I would like some better insight on what to expect. And being bouncy makes no sense. If anything its more stiff

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trippmann 03-10-2013 10:40 AM

You should expect blown shocks in a few thousand miles

zooswanko 03-10-2013 11:33 AM

Why would they say they are for stock suspension then?

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trippmann 03-10-2013 04:07 PM

because they fit on your stock suspension.

Japanrot_325i 03-10-2013 04:08 PM

Quote:

Originally Posted by trippmann (Post 15236835)
because they fit on your stock suspension.

+1

erich330ci 03-10-2013 04:22 PM

Not sure if you have Sport Package OEM suspension, so I'm not sure if this is applicable to your situation, but if so, note that I spoke with H&R directly and was advised that I can, in fact, use my stock Sport Package dampers with 29484s. I suggest you call them if you want to get the right answer, from the horse's mouth.

jdny516 03-10-2013 05:07 PM

what to expect: blown shocks/struts after awhile.

drumsauce 03-11-2013 11:29 PM

Quote:

Originally Posted by zooswanko (Post 15236235)
Ill keep you guys posted. I know other people have done it but I would like some better insight on what to expect. And being bouncy makes no sense. If anything its more stiff

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They are not mutually exclusive terms.

They WILL be stiff as far as impact on bumps and reaction to changes in steering.

HOWEVER, the stiffness isn't being controlled by a damper that has enough force to control it. The spring will rebound after the initial bump and then compress again, and then rebound, compress, rebound, etc. This is where the bounce comes from.

IF you are in for the look, good luck to you.

But, as some have said already, the worn OE shocks will be overworked and will give you a more uncontrolled bounciness the more miles you put on. You will grow tired of it...I know I did. :( (poor 87 prelude)

zooswanko 03-12-2013 01:36 AM

Quote:

Originally Posted by drumsauce (Post 15241411)
They are not mutually exclusive terms.

They WILL be stiff as far as impact on bumps and reaction to changes in steering.

HOWEVER, the stiffness isn't being controlled by a damper that has enough force to control it. The spring will rebound after the initial bump and then compress again, and then rebound, compress, rebound, etc. This is where the bounce comes from.

IF you are in for the look, good luck to you.

But, as some have said already, the worn OE shocks will be overworked and will give you a more uncontrolled bounciness the more miles you put on. You will grow tired of it...I know I did. :( (poor 87 prelude)

Thanks for the more detailed response. I see. I got the H&Rs for only 99$ brand new and installed them myself so if/when I find my car becoming bouncy, ill convert to coilovers. And now I know how to remove/install an e46 suspension :-D

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J LAU 03-12-2013 02:03 AM

You will have blown shocks or/and struts for sure. H&R race will blow them even sooner.

Based on what i have researched back in 2008, lowering springs normally shorten the lifespan of the struts and shocks by around 50%-70%.

So lets say a set new stock shocks last 80k miles under normal usage (no tracking, autoX, off road). Then with lowering springs you are looking for about 30-40k miles if you are lucky.

So...If you have the shock/strut for 50k miles, expect them to be blown within 10k miles or even less after installation.

If you just want the looks and want to just have everything right with one shot, I recommend the Koni "orange" struts and shocks. They are fairly cheap, and claimed to be able to support lowering springs without issues.

They should settle within 2-4 weeks if they were new.

Mango 03-12-2013 09:37 AM

the shocks/struts are already blown if they are original. he's just riding around on springs.

TT330i 03-12-2013 01:05 PM

Quote:

Originally Posted by E46Mango (Post 15242152)
the shocks/struts are already blown if they are original. he's just riding around on springs.

not necessarily

Mango 03-12-2013 01:24 PM

Quote:

Originally Posted by TT330i (Post 15242886)
not necessarily

Failure, in my definition, is anything beyond 50% loss in performance. Even Sachs-Boge (ZF) admits the early performance loss and total failure of the units.

FWIW, EVERY single original BMW strut/shock I've pulled has been completely dead or extremely worn. And I've pulled BOAT LOADS.

Excellent HIGH-performing lightweight unit, but not designed to go the long haul (as it shouldn't)

kaboo0m 03-12-2013 01:38 PM

^ he speaks the truth. at 60k its probably dead. if you don't notice, it's probably because you're not driving your car too aggressive.

zooswanko 03-12-2013 11:17 PM

I love all the feedback and knowledge. Yeah I was shooting for a cheap way to lower the car a bit and possibly stiffin the suspension a little. From just driving a couple days I'm pleased with the feel and look. We'll see how long the feel lasts. When necessary ill do coilovers. Also just put 18's on and my e46 looks hotter than ever. Ill post pics soon

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