SuperPro DURO3741K Duroball spherical bearing for front control arm anyone?
Oct 11, 2015, 07:28 PM
#17
Since my EVO is not competing at race, it does not really matter whether this parts effectively shave off some point x seconds from the lap time or not.
EVO is a stiff platform, so I doubt it makes a noticeable difference, but it is unique to Beatrush, and since this vertical bolt is very long, and I think it may not hurt to support a bit.
Oct 18, 2015, 06:58 PM
#18
Quick update after a track day:
About 200 miles of trip and two sessions of 25 min track, I confirmed my initial impression is correct.
Duroball + RCK + Beatrush member bar gives more stable cornering feel + quicker steering response, and more feedback from road but not harsh at all.
Going over speed bump is more on the "firm" side, but overall ride quality is still street friendly.
I am satisfied with this combination, and hope I can speed up a bit after putting in new RS3 and MXRS brake pads.
About 200 miles of trip and two sessions of 25 min track, I confirmed my initial impression is correct.
Duroball + RCK + Beatrush member bar gives more stable cornering feel + quicker steering response, and more feedback from road but not harsh at all.
Going over speed bump is more on the "firm" side, but overall ride quality is still street friendly.
I am satisfied with this combination, and hope I can speed up a bit after putting in new RS3 and MXRS brake pads.
The following users liked this post:
autolove (Aug 25, 2022)
Oct 20, 2015, 10:36 AM
#20
I should mention that I have been able to reduce the harshness of the square edged impacts with the Whiteline kit by dialing back the damping, in particular, the front damping seems to most strongly affect the feel. Its feeling pretty tolerable in the middle of the range. I still plan to try out the Duroball though because its still not quite what I would hope for an ideal comprimise DD car.
Oct 20, 2015, 04:42 PM
#21
I should mention that I have been able to reduce the harshness of the square edged impacts with the Whiteline kit by dialing back the damping, in particular, the front damping seems to most strongly affect the feel. Its feeling pretty tolerable in the middle of the range. I still plan to try out the Duroball though because its still not quite what I would hope for an ideal comprimise DD car.
Oct 20, 2015, 11:24 PM
#24
What settings for the dampers are you running? I just back them off completely and run full soft for the streets. I used to keep it at something like 14 clicks front 12 rear (swapped stiffer springs to rear) on the streets but tbh I'm no off-ramp hero, and the thing is already plenty capable in full soft. I actually find it almost as comfortable at low speed as MR bilsteins and stock springs (I used to swap to the stock suspension for every winter and swap back in summer), and at moderate to high speed it is more comfortable than stock. I've since upped my spring rates to 10k and 12k, now its slightly worse at low speed and still on par or slightly better at moderate and high speeds compared to stock.
If I get lazy and don't back off the dampers after a track day and drive home.....man is it brutal.
If I get lazy and don't back off the dampers after a track day and drive home.....man is it brutal.
Oct 21, 2015, 08:18 AM
#25
Yeah, I was initally close to full stiff, and it was not fun. Mid-damping settings are very nice. It does not feel underdamped for street use but is close to MR comfort level except for square-edged bumps which now are just tolerable.
Mar 17, 2016, 06:41 AM
#27
no updates? this came up in the STU discussion thread as a method of increasing caster a little and moving the wheel forward in the wheel well. I'm actually running a fairly similar suspension setup, really the only reason im getting these is to improve the wheel position, since I'm rubbing at full lock. glad to hear the nvh shouldn't be too bad
Mar 21, 2016, 04:16 PM
#28
no updates? this came up in the STU discussion thread as a method of increasing caster a little and moving the wheel forward in the wheel well. I'm actually running a fairly similar suspension setup, really the only reason im getting these is to improve the wheel position, since I'm rubbing at full lock. glad to hear the nvh shouldn't be too bad
One thing that did come to mind was the mention of "washers" in the instructions, but the kit didn't come with any. I assume they are installed around the factory bushing?
Mar 22, 2016, 08:05 AM
#29
The PSRS has different sized 'washers' that allow one to change the anti-dive rate of the front suspension by spacing the rear bushing up or down. It looks like the Superpro spacers coming out of the spherical are a fixed height, not sure if both sides are the same. That's where the PSRS spacers are adjusted.
