[theEZV]

Hello folks,

I recently picked up a 2014 335i.

I am looking to mod the car, and would like to get my suspension plans sorted out first. Had KW V1 on my 2013 WRX that I just sold, and they weren't bad.

Read a lot of good feedback on the V1's coming from the F30 owners, so figured I'd go that way again.

Are the spring rates for the 335 specific coils (1022000S) different than the 328i model (1022000D)? I see several people selling coils in the classifieds that claim they fit both cars, but I don't see any mention of spring rates.

How about other brands? I see Bilstein has the same PSS10 listed for both te 328 and 335.

[HP Autosport]

Not much of a difference to worry about. You will likely not track the car with the V1 as your choice.

[E30toF30]

Originally Posted by HP Autosport

You will likely not track the car with the V1 as your choice.

Curious as to what you mean by this comment.

I figured these would be decent coilovers options for someone who DD's their car and hits a up 2-4 track days a year. Would the v1 not be a significant improvement over stock, m sport, dhp suspension on the track?

Just curious as I am thinking about getting v1s as well and I do plan on doing a handful of track days a year. But car's main use is my dd.

[HP Autosport]

Originally Posted by E30toF30

Curious as to what you mean by this comment.

I figured these would be decent coilovers options for someone who DD's their car and hits a up 2-4 track days a year. Would the v1 not be a significant improvement over stock, m sport, dhp suspension on the track?

Just curious as I am thinking about getting v1s as well and I do plan on doing a handful of track days a year. But car's main use is my dd.

V1 is more of a sport/lowring coilover then something for the track. There is not enough of a difference in spring rates to worry about for street use. Koni with sport springs will often outperform V1 on and off the track.

V3 will be the minimum I would personally consider for any track use. Even then it is still lacking the linear rate true coilover type springs.

[E30toF30]

Originally Posted by HP Autosport

V1 is more of a sport/lowring coilover then something for the track. There is not enough of a difference in spring rates to worry about for street use. Koni with sport springs will often outperform V1 on and off the track.

V3 will be the minimum I would personally consider for any track use. Even then it is still lacking the linear rate true coilover type springs.

Thanks so much for your input.
Unfortunately, V3's will be out of the budget for suspension.

I figured the V1's would be better for my minimal track days and better for my daily driving compared to my H&R sport springs with stock DHP struts. Naturally nowhere near as good as V3's would be, but still better than my current setup for both scenarios.

I will have to think about this some more. Thanks! And sorry to hijack the thread!

[theEZV]

I was just asking about the differences in spring rates. I saw someone selling coils with the 328i part number and was wondering if there are actually any differences.

For the record, I had V1's on my WRX that I just sold. Rode on them for 2.5 years and was happy with them overall. For the money they are good IMO.

Why would you not track with them? Seems like a strange statement. No, they are not really a "performance" coilover, but so what? There are tons of people out there that hit the track bone stock and have a blast. People with just springs, and all sorts of mods.

[HP Autosport]

Originally Posted by E30toF30

Thanks so much for your input.
Unfortunately, V3's will be out of the budget for suspension.

I figured the V1's would be better for my minimal track days and better for my daily driving compared to my H&R sport springs with stock DHP struts. Naturally nowhere near as good as V3's would be, but still better than my current setup for both scenarios.

I will have to think about this some more. Thanks! And sorry to hijack the thread!

Save your money and get something of value. If all you have budget for is the v1, go for it.

[HP Autosport]

Originally Posted by theEZV

I was just asking about the differences in spring rates. I saw someone selling coils with the 328i part number and was wondering if there are actually any differences.

For the record, I had V1's on my WRX that I just sold. Rode on them for 2.5 years and was happy with them overall. For the money they are good IMO.

Why would you not track with them? Seems like a strange statement. No, they are not really a "performance" coilover, but so what? There are tons of people out there that hit the track bone stock and have a blast. People with just springs, and all sorts of mods.

Differences will be minimum. Likely the front rates is slightly higher on the 335i. However, with KW using progressive rate springs, you shouldn't have to worry too much about it.

You can track a completely stock car, but if you are getting V1 with the intention of hitting the track, you may be a bit disappointed with its performance when compared to other higher quality systems out there.

[Dog Face Pony Soldier]

It does seem slightly suspect that I see suspension kits that seemingly offer the same spring rates for different weight (engine) vehicles. :

[Cruiserman]

If KW has a different part number, I would not install the one for 328i on a 335i. There may be a difference in spring rates because of the weight difference. But I might consider installing the one for 335i on the 328i. In any case, I would follow the specific manufacturers intended application. Yeah, the fit might be interchangable, but is it right?

[HP Autosport]

Originally Posted by Cruiserman

If KW has a different part number, I would not install the one for 328i on a 335i. There may be a difference in spring rates because of the weight difference. But I might consider installing the one for 335i on the 328i. In any case, I would follow the specific manufacturers intended application. Yeah, the fit might be interchangable, but is it right?

Likely is only a rate difference. Same suspension otherwise.

[Cruiserman]

Originally Posted by HP Autosport

Likely is only a rate difference. Same suspension otherwise.

Only?..a rate difference?
Hmmm...sounds so unimportant

[HP Autosport]

Originally Posted by Cruiserman

Only?..a rate difference?
Hmmm...sounds so unimportant

Likely, TCKR and Ohlins both use the same struts and shocks so why would KW be any different? It's only a couple hundred pounds of weight difference if that.

[Cruiserman]

Originally Posted by HP Autosport

Likely, TCKR and Ohlins both use the same struts and shocks so why would KW be any different? It's only a couple hundred pounds of weight difference if that.

Let's focus on OP's posted question instead of complicating things by including other brand names.

By the way, I know that every brand has their own criteria and tuning for different car models, which is why I offered "specific manufacturers intended appplication" as advice.

OP questioned spring rate difference of KW 335i vs 328i, two different part numbers.

Are these kits actually the same?

[larrylam646]

Spring rates are different but the struts/shocks appear to be the same for the two products ("S" vs "D").

http://www.kwsuspensions.net/kw-gewi...nox-25122.html

http://www.kwsuspensions.net/kw-coil...inox-8017.html

Download the installation manuals for both products for details. According to the links the "S" is for the xDrive and "D" is recommended for the 435i.

Larry