The bushing round up
Joined: Jun 2009
Posts: 755
Likes: 2
From: Pasadena, CA
When I installed mine the castle nut torqued down/bottomed out on the small shelf on the RCA's shaft instead of the LCA (basically the taper is not the right shape and penetrates the LCA too far), I had to add a washer with an I.D. larger than the shelf on the RCA's shaft to get the castle nut properly torqued to the LCA.
Some quotes from the 14 page thread about these RCA's:
https://www.s2ki.com/s2000/topic/885...e+rca__st__250
My hardrace flange bolts were also too short (~39mm) vs OEM (~37mm). You can see they do not fully thread the knuckle.
So after many hours of digging without success, I scoured the Honda parts bin and found this!
It is a 45mm flange bolt from Honda Civic Si engine mount (90165-SDA-A00 BOLT, FLANGE (12X45)). It does have "10" marking on top of bolt but not sure if it is zinc coated for rust prevention.
I guess you can also use the following (not confirmed)
90397-SNA-A00 BOLT, FLANGE (12X51) <--- this one is 51mm if you want it a little longer, almost sure these will fit fine too
90174-TK6-000 BOLT, FLANGE (12X45) <--- from Honda CR-Z engine mount
90174-TM5-000 BOLT, FLANGE (12X45) <--- from Honda CR-Z engine mount
Notice how they fit nicely!
So after many hours of digging without success, I scoured the Honda parts bin and found this!
It is a 45mm flange bolt from Honda Civic Si engine mount (90165-SDA-A00 BOLT, FLANGE (12X45)). It does have "10" marking on top of bolt but not sure if it is zinc coated for rust prevention.
I guess you can also use the following (not confirmed)
90397-SNA-A00 BOLT, FLANGE (12X51) <--- this one is 51mm if you want it a little longer, almost sure these will fit fine too
90174-TK6-000 BOLT, FLANGE (12X45) <--- from Honda CR-Z engine mount
90174-TM5-000 BOLT, FLANGE (12X45) <--- from Honda CR-Z engine mount
Notice how they fit nicely!
Originally Posted by f20kills' timestamp='1338566371' post='21746282
See if you can find a "taller" castle nut. I noticed that the J's one is taller compared to the other brands.
https://www.s2ki.com/s2000/topic/885...t__p__21004069
https://www.s2ki.com/s2000/topic/885...t__p__21004069
In the rear the Hardrace castle nut is the same size and thread pitch as OEM, so I just re-used my existing castle nuts to cure Hardrace's short nut syndrome,
but the front nut is a different thread pitch than OEM...
As far as sourcing other OEM bolts to mount the RCA to the knuckle, It would be nice to find a part number for bolts that have an enlarged shoulder like the original bolts do, see the shoulder on the one on the left? I found 60 mm OEM bolts that do and could work, but it would be nice to find some in 50mm.
Registered User
Joined: Jul 2005
Posts: 645
Likes: 0
From: Chicago
I just got every bushing energy suspension makes for our car, entire front, rear, and diff set. Everything shipped for $300.00; can't beat that. If I run into issues with the compliance bushings, then I'll get the powerflex ones, but for the rest of them I don't see a reason to pay two, three or more times more than what energy suspension costs (plus they are made in the States). Prothane is also a good value for the money in my opinion, but they cover less points then energy suspension.
Registered User
Joined: Jul 2005
Posts: 645
Likes: 0
From: Chicago
Originally Posted by jr94513' timestamp='1429127143' post='23579063
Why do you say the hardrace rca has poor fitment? I have that on mine and fits fine.
When I installed mine the castle nut torqued down/bottomed out on the small shelf on the RCA's shaft instead of the LCA (basically the taper is not the right shape and penetrates the LCA too far), I had to add a washer with an I.D. larger than the shelf on the RCA's shaft to get the castle nut properly torqued to the LCA.
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