RX-2 / RX-3 Lower Control Arm teaser
06-29-11, 04:30 PM
#27
Just so you guys are aware, this hasn't stopped but I was doing some more research on it. I also have a 1971 - 616 here at the shop now with an RX2 crossmember to mock up on.
I think that I'll also be using Miata Ball joints on them as oppose to the RX7. The miata joint is alot more readily availably and will even more down the years we go. The miata used the same ball joint from 1990-2005! A couple of pluses I think with going that route is for starters, its a bolts on joint vs a press on, secondly its alot beefier than the rx7 one which should help reduce wear on them.
I think that I'll also be using Miata Ball joints on them as oppose to the RX7. The miata joint is alot more readily availably and will even more down the years we go. The miata used the same ball joint from 1990-2005! A couple of pluses I think with going that route is for starters, its a bolts on joint vs a press on, secondly its alot beefier than the rx7 one which should help reduce wear on them.
06-30-11, 02:40 PM
#32
The overall geometry doesn't change much, but being able to run bigger, better brakes will certainly help a track focused car if thats what you're after though. The main reason of the design change is for ease of finding parts and not so much about the actual geometry change for this specific product.
08-19-11, 10:33 AM
#36
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This is awesome!
If there was a way to swap in the FC shock/hub assembly into the cosmo, this is it!!!
No redrilling hubs or rotors, just bolt on and presto...
4 piston calipers, rotors that are actually available to purchase and a lug pattern that still exists!!
Let me know when they'll ship???
If there was a way to swap in the FC shock/hub assembly into the cosmo, this is it!!!
No redrilling hubs or rotors, just bolt on and presto...
4 piston calipers, rotors that are actually available to purchase and a lug pattern that still exists!!
Let me know when they'll ship???
02-22-12, 01:14 PM
#40
Hey guys,
We'll this is the third set of arms we've done and shipped out. We're now using first gen RX7 steering arms vs making our own to keep cost down. The steering arms do need to be shipped out to us to have the taper modified to accept the miata ball joint taper. As previously mentioned though, these are meant to ease the installation of using 1st gen RX7 shock assemblies along with the correcting the geometry issue that comes with just swapping them in. There should still be used with camber plates to further adjust camber properly though. The RX2 camber plates will be added to the website shortly.
Price of the control arms will be 325$ for the pair. Taper modification for the miata ball joint on the steering arms will be 25$ for the set.
We'll this is the third set of arms we've done and shipped out. We're now using first gen RX7 steering arms vs making our own to keep cost down. The steering arms do need to be shipped out to us to have the taper modified to accept the miata ball joint taper. As previously mentioned though, these are meant to ease the installation of using 1st gen RX7 shock assemblies along with the correcting the geometry issue that comes with just swapping them in. There should still be used with camber plates to further adjust camber properly though. The RX2 camber plates will be added to the website shortly.
Price of the control arms will be 325$ for the pair. Taper modification for the miata ball joint on the steering arms will be 25$ for the set.
Last edited by Re-Speed.com; 02-22-12 at 01:21 PM.
02-22-12, 01:27 PM
#42
Forgot to mention one thing in regards to the ball joints. The ball joints will need to be shortened. The procedure that we've been using here is assembling the steering arm to the ball joint, and tightening it as you would on the vehicle, then from there using a cut off wheel, but the excess of the threads to be at the top of the nut. Lastly using a 1/8" drill bit redrill a hole for the cotter pin.
02-29-12, 06:23 PM
#48
The General RE
I like that you are using RX7 steering arms. I looked into improving Ackerman on my '73 RX3 and what i discovered was that the easy fix was RX7 steering arms. Makes the virtual line from strut center through the steering pickup on the steering arms intersect very close to the centerline of the rear axle. Converging on the centerline of the rear axle is the theoretical location for "perfect" Ackerman.
