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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, Aug-06-2013, 05:06:09 PM   #11
Abad46
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Default Re: End to all speculation: The CSL Kingpin

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Originally Posted by terraphantm View Post
I doubt it. Otherwise the ZCP would have gotten the CSL kingpin.
Right lol.. My car is a ZCP so that lines up haha
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Old Tue, Aug-06-2013, 05:11:33 PM   #12
m3 hal
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Default Re: End to all speculation: The CSL Kingpin

good info, thanks
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Old Tue, Aug-06-2013, 05:16:32 PM   #13
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Default Re: End to all speculation: The CSL Kingpin

1-2 degrees is a big difference in caster! But I'd say that there is much more to it than that. There are so many little differences between the regular M3 and the CSL, it's similar to how an M3 and 330i ZHP are the "same" car to an unknowing outsider even though they are worlds apart.
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Old Tue, Aug-06-2013, 06:05:36 PM   #14
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Default Re: End to all speculation: The CSL Kingpin

Moving the ball joint forward of the top of the strut is how you get more caster (or moving the wheel back from that line). If the strut sits in a different position at the bottom relative to the lower ball joint, it doesn't make a difference. You can increase caster by using an eccentric FCAB and pushing the ball-joint forward. If the lower balljoint on the CSL kingpin is in a different position vs the wheel so that the wheel is centered in the wheel well at a different caster setting, the CSL FCABs or FCAs should be specific parts as well I would think.
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Old Tue, Aug-06-2013, 07:03:09 PM   #15
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Default Re: End to all speculation: The CSL Kingpin

The CSL also has 10mm shorter springs. Maybe think this kingpin adjustment is there to accommodate the new strut angle.
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Old Tue, Aug-06-2013, 07:46:17 PM   #16
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Default Re: End to all speculation: The CSL Kingpin

You have a flickr account?!?!

Who ever is holding those kingpins should really be a hand model.
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Old Tue, Aug-06-2013, 09:40:44 PM   #17
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Default Re: End to all speculation: The CSL Kingpin

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You have a flickr account?!?!

Who ever is holding those kingpins should really be a hand model.
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Old Tue, Aug-06-2013, 10:35:44 PM   #18
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Default Re: End to all speculation: The CSL Kingpin

Thanks for checking this out for us. you two are having too much fun.
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Old Wed, Aug-07-2013, 03:54:09 AM   #19
ML///M3
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Default Re: End to all speculation: The CSL Kingpin

Based on what you're seeing, are you suggesting that the CSL Kingpin is providing positive caster?

My understanding is that it provides straight-line stability but it really doesn't matter since most cars are not sensitive to caster (mainly those that can adjust caster can gain the benefit - RX-7 FD comes to mind). The downside (my understanding) to increased caster is more steering effort is required, but then again the CSL has a tight steering rack, so again it might not have a big effect on steering. Curious to know more though...
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Old Wed, Aug-07-2013, 04:45:43 AM   #20
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Default Re: End to all speculation: The CSL Kingpin

LOL, it's all connected. Think about it: if you change the angle of that hole, it DOES move the ball joint location if the plane of attachment at the top doesn't change, but it is more or less a rotational move, not linear.
I'm tired and 3 beers in, but I think it may change the dynamic camber during turn-in as much as anything.
We'll find out how much caster changes when the OP does the install and checks the difference hopefully.

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Originally Posted by FrumpyBF View Post
Moving the ball joint forward of the top of the strut is how you get more caster (or moving the wheel back from that line). If the strut sits in a different position at the bottom relative to the lower ball joint, it doesn't make a difference. You can increase caster by using an eccentric FCAB and pushing the ball-joint forward. If the lower balljoint on the CSL kingpin is in a different position vs the wheel so that the wheel is centered in the wheel well at a different caster setting, the CSL FCABs or FCAs should be specific parts as well I would think.
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Discussing End to all speculation: The CSL Kingpin 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)