|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Dinan Springs for 335is - Experiances
|
|
09-27-2012, 07:30 PM | #1 |
Enlisted Member
3
Rep 46
Posts |
Dinan Springs for 335is - Experiances
Hello. I just picked up a 2012 335is. Great car. Has anyone just put the dinan springs on without changing the shocks? Looking for your experiances on ride height and over all handling. The stock suspension seems fine, but I wouldn't mind a bit more buttoned down ride without being too harsh or too slammed. I am thinking just doing the springs might work well.
|
09-27-2012, 09:22 PM | #2 |
Colonel
164
Rep 2,556
Posts |
Congrats on your new car. Don't change springs w/o changing dampers. You'll f..k up the handling and ride quality. Spend some time reading this forum.
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
Appreciate
0
|
09-28-2012, 12:16 AM | #3 |
Enlisted Member
3
Rep 46
Posts |
Yes, in many cases that is correct. However, this is the Stage 1 kit offered by Dinan which has been tested with the stock shocks. I used Dinan full suspension kits on my e39 m5 and e38 740i and have good confidence in their suspensions.
|
Appreciate
0
|
09-28-2012, 10:44 AM | #4 |
Colonel
164
Rep 2,556
Posts |
I'll be interested to see your findings then. Most reviews of Dinan's susp on E9x have been less than stellar
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
Appreciate
0
|
09-28-2012, 11:00 AM | #5 | |
Enlisted Member
3
Rep 46
Posts |
Quote:
Here is the product description of the Stage 1 suspension from the Dinan site. Product Description The 335is comes from the factory with some upgraded components over its little brother the 335i. One of these factory upgrades is the suspension system. More specifically the shocks and struts have been improved so much that they now meet Dinan standards. However the springs needed some help and are replaced with proprietary Dinan springs lowering the front end by 1/2" while the rear remains at stock height. The Dinan Rear Shock Mount Kit is used to provide an additional 10mm of shock travel in the rear. The Stage 1 Suspension Kit decreases body roll and improves handling while still providing a stock like ride. Benefits: Vehicle is lowered 1/2” in front Decreased body roll from higher spring rates Compatible with stock shocks Additional 10mm of shock travel for improved ride quality and performance |
|
Appreciate
0
|
09-28-2012, 12:41 PM | #6 | |
Major
146
Rep 1,160
Posts |
Quote:
Your education begins. As you have a 335i suspension, given what you want, you'll need: Coilovers - Koni Yellows + linear springs >or< Koni FSD + BMW Performance or Sport springs LSD Rear M subframe bushings M sway bars M control arms, including M rear camber arms Rear toe arms As Dinan won't do, for instance, a LSD for your car, and everything else is significantly more expensive than competitors, you should look around. Or, you will pay accordingly. And please, do the suspension + drivetrain before adding power. Good luck with it! |
|
Appreciate
0
|
09-28-2012, 01:14 PM | #7 |
Captain
38
Rep 864
Posts
Drives: '08 E92 335i
Join Date: Apr 2012
Location: Dallas
|
Doing just the springs will do nothing but lower the car moderately and make it more bouncy.
|
Appreciate
0
|
09-28-2012, 01:34 PM | #8 | |
Brigadier General
1534
Rep 4,103
Posts
Drives: BMW M3
Join Date: Feb 2011
Location: Blue Bell, PA
|
Quote:
The damper slows down the spring's movement which is why it has to be matched to the spring rate. A stiffer spring like Dinan model you're considering is going to be able to store more energy. Maybe Dinan's "standard" is that the stock damper can control the energy from the spring and if the 335is has different dampers ... something like that. The people that responded to this thread saying springs only are a bad idea are right on the money. You can't change one component and still expect the suspension to maintain the same balance of ride quality and handling characteristics, especially when it's one of the two primary suspension components. You said you used full Dinan suspension kits in the past, but this is far from a full kit. Just one piece.
__________________
2024 BMW M3 Sedan Frozen Pure Grey II/Fjord Blue, 6MT
Past: 2021 Z4 M40i Frozen Grey II/Black Alcantara | 2017 F30 340i Mineral Gray/Coral Red, 6MT | 2011 E92 335i Le Mans Blue/Black, 6MT Last edited by CJ421; 09-28-2012 at 01:40 PM.. |
|
Appreciate
0
|
09-28-2012, 01:39 PM | #9 |
Captain
38
Rep 864
Posts
Drives: '08 E92 335i
Join Date: Apr 2012
Location: Dallas
|
Also I just looked up the part numbers and the E92 335i and the 335is have the same part # struts anyway. So any inference from Dinan that the 335is "had some improvements" over the 335i is just nonsense.
|
Appreciate
0
|
09-28-2012, 04:41 PM | #10 | |
Colonel
164
Rep 2,556
Posts |
Quote:
Dinan does sell a quaife or wavetrac lsd. They package it in a box with a big D on it and mark it up nicely for those who are trying to get points for a dinan trunk badge
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS Last edited by cvc 22349a; 09-28-2012 at 04:45 PM.. Reason: d |
|
Appreciate
0
|
09-28-2012, 07:47 PM | #11 | |
Enlisted Member
3
Rep 46
Posts |
Quote:
It is true, the car would be enhanced significantly with all those proposed components, but for the intended use of the car (commutes, road trips, 4-5 track days a year and backroad driving) it just isn't worth it to me. The car is plenty capable for all of that stock. I am interested, however, in taking a small amount of the float out of the suspension without going overboard, hence my interest in the Dinan springs. Thanks for your input bud! |
|
Appreciate
0
|
09-28-2012, 07:55 PM | #12 |
Enlisted Member
3
Rep 46
Posts |
That could be very true. I wonder why the Stage 1, 2 and 3 suspension for the 335is still uses the stock struts/shocks while the Stage 1, 2 and 3 suspension for the 335i uses Konis? Did the 335i non-sport come with different shocks/struts than the M-sport? If so, maybe Dinan figures they have it covered for the non-sport and m-sport by having the Konis included.
|
Appreciate
0
|
09-28-2012, 08:00 PM | #13 | |
Captain
38
Rep 864
Posts
Drives: '08 E92 335i
Join Date: Apr 2012
Location: Dallas
|
Quote:
Either way; just replacing springs is a bad idea. |
|
Appreciate
0
|
09-28-2012, 08:42 PM | #14 | |
Enlisted Member
3
Rep 46
Posts |
Quote:
http://www.bimmerfest.com/forums/sho...d.php?t=632303 |
|
Appreciate
0
|
09-28-2012, 09:06 PM | #15 |
Colonel
164
Rep 2,556
Posts |
You've got a couple people here who've modded an E9x's suspension giving you the straight scoop. No one here is trying to make a buck off of you. Hate to tell you the E9x susp is soft, floaty and bouncy to make ride comfort acceptable with rft's (your susp is no different except for the rear guide rods and motor mounts). It'll get more so if you get rid of the rft's and then you can embark on the slippery slope many of us have to tighten it back up.
You seem to have your mind made up, so go for it
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS |
Appreciate
0
|
09-28-2012, 09:35 PM | #16 | |
Enlisted Member
3
Rep 46
Posts |
Quote:
If I do anything more, I will report back |
|
Appreciate
0
|
09-29-2012, 01:06 AM | #17 | |
Major
146
Rep 1,160
Posts |
Quote:
Now 3's suspension is improved and PS2's are replaced by PSS's. OP should replace RFT's w/same if adding delrin [M] bushings/ball joints or simply to improve his ride & handling. Dinan does OEM a Quaife LSD, last I heard, but only for MT - no DCT's allowed. Odd - LSD's readily available for DCT. I assumed 335is suspension has all the deficiencies of a 335i; maybe not entirely so. Not entirely wrong either....e-diff....those subframe bushings & sways....steel arms fitted w/rubber baby bumpers....yikes! |
|
Appreciate
0
|
09-29-2012, 01:26 AM | #18 |
Major
146
Rep 1,160
Posts |
|
Appreciate
0
|
09-29-2012, 01:30 AM | #19 | |
Major
146
Rep 1,160
Posts |
Quote:
Then the time's come to be good to yourself! Install Koni FSD's for a sweet sport ride with excellent pothole control. Widely used - lots of installs to read about. Designed to use stock springs. |
|
Appreciate
0
|
09-29-2012, 02:18 AM | #20 |
Enlisted Member
3
Rep 46
Posts |
Yes, I have been reading good things about those. Do you think they will fare well with the 19 inch RFTs? I would like to keep them because of lots of late night travel on freeways.
|
Appreciate
0
|
09-29-2012, 11:37 AM | #21 | |
Colonel
164
Rep 2,556
Posts |
Quote:
Gotta add: FSD's are designed to dampen OE springs; they may not dampen Dinan's springs any better than oe shocks/struts.
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS Last edited by cvc 22349a; 09-29-2012 at 11:46 AM.. Reason: add |
|
Appreciate
0
|
01-04-2013, 10:22 AM | #22 | |
NC BMW
42
Rep 461
Posts
Drives: 2013 335is , 6 speed mt
Join Date: Aug 2007
Location: NC
|
Dinan Springs / Stage 1 suspension
Hi, Did you end up with the Dinan springs ? If so, I was curious about your experience with them. I really like this 335is, but want to tighten up the suspension just a bit, and lower the front that ~1/2' .
Your thoughts would be appreciated. Thanks, - Ray - Quote:
|
|
Appreciate
0
|
Bookmarks |
|
|