Installed RCA blocks on my AWD GS
07-12-11, 05:15 PM
#31
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This is the first time I've seen or heard of RCA Blocks so I apologize for the nubness, what do these blocks do? I've read that it lowers the car a bit and that it corrects negative camber.
Last edited by jnaval; 07-12-11 at 05:20 PM.
07-12-11, 06:03 PM
#32
check out this diagram. it might help illustrate how these blocks work.
http://lexus.sewellparts.com/images/...000/482149.jpg
it raises the steering knuckle 20/25/30mm depending on the size of the blocks. the steering knuckle (part #: 43211/43212) is attached to the brakes and wheels so since the knuckle is being raised, it's moving the wheel upwards closer to the top of the wheel well. the struts and shocks are connected to the lower suspension arm (part #: 48620/48640) so since that part isn't being moved you retain the same amount of suspension travel and ride quality. the blocks are sandwiched between the bottom of the steering knuckle and the top of the lower ball joint assembly (part #: 43330K/43340A).
i think these blocks were originally designed for people on coilovers and airbags to sit even lower.
as far as i know, it does NOT correct negative camber. i may be (and probably am) wrong about this to a degree. i hope this explanation helps. if any other members can add to this please feel free.
http://lexus.sewellparts.com/images/...000/482149.jpg
it raises the steering knuckle 20/25/30mm depending on the size of the blocks. the steering knuckle (part #: 43211/43212) is attached to the brakes and wheels so since the knuckle is being raised, it's moving the wheel upwards closer to the top of the wheel well. the struts and shocks are connected to the lower suspension arm (part #: 48620/48640) so since that part isn't being moved you retain the same amount of suspension travel and ride quality. the blocks are sandwiched between the bottom of the steering knuckle and the top of the lower ball joint assembly (part #: 43330K/43340A).
i think these blocks were originally designed for people on coilovers and airbags to sit even lower.
as far as i know, it does NOT correct negative camber. i may be (and probably am) wrong about this to a degree. i hope this explanation helps. if any other members can add to this please feel free.
07-13-11, 11:17 PM
#34
That's just amazing!
I will try to take a picture of a GS350 AWD here in Bahrain, so you guys can see the ride height. It is identical to RWD GS's!
What's the deal with ride heights in the US? I know there is a bumper height regulation that has been in place for years over there, but never knew this applied to the rear axles too!!!
I will try to take a picture of a GS350 AWD here in Bahrain, so you guys can see the ride height. It is identical to RWD GS's!
What's the deal with ride heights in the US? I know there is a bumper height regulation that has been in place for years over there, but never knew this applied to the rear axles too!!!
07-17-11, 05:20 PM
#35
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CONFIRMED....
3GS....AWD....max is 20mm RCA kit on 17" wheels....pics above....(thanks to gridlock 13).
3GS....RWD....max is 25mm RCA kit on 17" wheels (thanks to greyhndfan for confirming this)....pics below...
And 30mm if you running larger wheels....preferbly 19" +.
3GS....AWD....max is 20mm RCA kit on 17" wheels....pics above....(thanks to gridlock 13).
3GS....RWD....max is 25mm RCA kit on 17" wheels (thanks to greyhndfan for confirming this)....pics below...
And 30mm if you running larger wheels....preferbly 19" +.
10-24-11, 05:33 PM
#39
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Fronts won't look lower...see these before and after pics by greyhndfan...he installed SAGE 25mm front RCAs....rear is stock suspension height....on 20" Works.
BEFORE:
AFTER:
Last edited by PHML; 10-24-11 at 05:38 PM.
10-28-11, 09:33 PM
#41
same here after having them on for over a year.. Ride quality is same as stock IMO. I haven't checked my torque on them in awhile.. I'll do that as well. Looking at my pics there makes me think I need to wash my car this weekend.
10-31-11, 05:55 PM
#45
Lexus Test Driver
This is good to know and it so happens that im riding on 20's as my daily and have stock 18'' lobster claws. Where can a purchase be made at and what would give a better look as far as lowering and not destroy my frontend alignment?