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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Sep-18-2018, 02:59:36 PM   #11
Obioban
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Default Re: Ohlins R/T vs. KW V3

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Originally Posted by Chapelle View Post
Thanks Ian, always value your input.

You're exactly right - just a weekend only driver. Maybe 10 miles to work on the highway on a nice Friday, but by no means a DD.

I was curious about camber plates and upgraded springs for the Ohlins setup. Are the required or will they give other advantages? I could definitely see some HPDE or light track duty at some point in the near future now that I have my subframe and VANOS locked down. But 90% of the time will just be mountain drives. Tried doing a quick search on optimal spring rates, but I came up with a ton of information that I'll need to sift through.
The overwhelming benefit of camber plates is longer tire life on track (and that's assuming you use them to increase camber on track, decrease it to non camber plate settings for street). This is not a benefit you'll see at all on the street. For street only use, most camber plates are a significant NHV penalty with no benefit in return.

Ohlins' stock rates are 400 lbs/in front, 628 lbs/in rear. You can vary it a little, but any significant change will require a revalve to competently control it.

"upgraded" springs, assuming you mean rate change, is a term I'm not a fan of-- as it implies better. IMHO most people run these cars way too stiff, including for track use. If I were to change the spring rates on my Ohlins (which I track pretty regularly), it would be to make the front a bit softer.... the opposite of 99% of people's "upgraded springs"

Thus far I've just changed my springs to a more compact spring of the same rate, to allow for more tire clearance.

If you do end up tracking the car, putting yourself in a place where camber plates would have a benefit in exchange for their penalty, here was my solution (the PITA I refered to above): http://www.m3forum.net/m3forum/showthread.php?t=599442
(which I based on the TMS Hybrid camber plates, as they have less NHV penalty that most plates on the market)
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Old Tue, Sep-18-2018, 06:04:53 PM   #12
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Default Re: Ohlins R/T vs. KW V3

Recently had R&T kit installed along with these for camber plates. Can't recall camber measurement but request was "aggressive street" and shop did not have issues in attaining that. Should be zero noise as well which is a definite positive.
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Old Tue, Sep-18-2018, 07:14:40 PM   #13
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Default Re: Ohlins R/T vs. KW V3

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Originally Posted by Yaw View Post
Recently had R&T kit installed along with these for camber plates. Can't recall camber measurement but request was "aggressive street" and shop did not have issues in attaining that. Should be zero noise as well which is a definite positive.
Main problem with those 'camber' plates is that for a given ride height they reduce bump travel 10mm, which is a lot. On the flip side, for a given bump travel they increase ride height 10mm, which could be a good thing for a street car as the RT wants to run pretty low.

Also, as Ian stated - more camber isn't necessary on the street from a performance standpoint although it doesn't hurt. I think most people run a lot of front camber on street cars to clear wheels that are too big.
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Old Tue, Sep-18-2018, 07:21:49 PM   #14
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Default Re: Funny, I have both right now..

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Originally Posted by Chapelle View Post
Twentyseven, I appreciate your level of detail. It's sounding like the Ohlins is a great long-term suspension upgrade for me.
I echo Ian. If you are OK with the price and rebuild intervals, the Ohlins are THE way to go. Just wanted to give the KW a fair shake.

I spent alot of time (and $) trying to build a setup like the R&T for my E36 years ago, so just as you I was the exact kind of user they designed the kit for - weekend toy for the more discerning driver.
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Old Tue, Sep-18-2018, 07:23:43 PM   #15
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Default Re: Funny, I have both right now..

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Originally Posted by twentyseven View Post
I echo Ian. If you are OK with the price and rebuild intervals, the Ohlins are THE way to go. Just wanted to give the KW a fair shake.



I spent alot of time (and $) trying to build a setup like the R&T for my E36 years ago, so just as you I was the exact kind of user they designed the kit for - weekend toy for the more discerning driver.


Does it sound like the 30,000 km interval Ohlins suggests for street use applies to my scenario? I think track intervals were every 10 hours.
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Old Tue, Sep-18-2018, 07:30:35 PM   #16
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Default Re: Funny, I have both right now..

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Originally Posted by Chapelle View Post
Does it sound like the 30,000 km interval Ohlins suggests for street use applies to my scenario? I think track intervals were every 10 hours.
I don't think it's 10 hours on track
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Old Tue, Sep-18-2018, 07:34:39 PM   #17
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Default Re: Funny, I have both right now..

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Originally Posted by Chapelle View Post
Does it sound like the 30,000 km interval Ohlins suggests for street use applies to my scenario? I think track intervals were every 10 hours.
I've heard you can stretch it to 30-40k miles (about double). 30,000 km is more precautionary than anything. Should not be an issue. Just check them periodically for any excessive wear/leaks. If they start to feel tired then it's time. But given your stated useage you should be able to get 5-6 years of service no problem.
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Old Tue, Sep-18-2018, 07:37:06 PM   #18
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Default Re: Funny, I have both right now..

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Originally Posted by Obioban View Post
I don't think it's 10 hours on track
I was pretty surprised as well, only going off the user manual (page 10)

http://bd8ba3c866c8cbc330ab-7b26c6f3...nsOriginal.pdf
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Old Tue, Sep-18-2018, 07:41:36 PM   #19
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Default Re: Funny, I have both right now..

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Originally Posted by Chapelle View Post
I was pretty surprised as well, only going off the user manual (page 10)

http://bd8ba3c866c8cbc330ab-7b26c6f3...nsOriginal.pdf
That says racing-- not tracking.
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Old Tue, Sep-18-2018, 07:46:44 PM   #20
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Default Re: Funny, I have both right now..

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Originally Posted by Obioban View Post
That says racing, not tracking.
Not going to apply to me anyway, but I didn't immediately acknowledge a difference. I can see where "tracking" would be less intense than "racing" though.

I might pull the trigger on these in a few weeks after I recoup from Matt's subframe overhaul bill this week (still amazing work with prices that beat everyone else in the area, and solid dude to boot)

And then there are probably black Friday deals coming up soon...damn it. Have you guys seen these pop up on any fall sales in the past?

Truth be told, my company recently started giving out some Amazon gift cards as performance incentives and I've got a whole bunch of them. I couldn't think of many high-end parts on Amazon for our cars, but then the R/T's popped up on the search!
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Discussing Ohlins R/T vs. KW V3 in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)