Roadster Shop

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Standard Features

  • Brakes are mounted conventionally outboard for easy rotor and pad changes and countless brake packages
  • Utilizes Corvette C6 spindles, hubs, and sway bar end links for easy maintenance, OEM quality and availability
  • Right and left hand Aurora bearings and hex shaft make toe changes very simple
  • Upper a-arm windows allow easy access to grease upper control arm bushings
  • Simple caster and camber adjustments through adding or removing shims
  • Unique bracketry allows simple removal of 3rd member without dismantling un-needed bracing and supports
  • Drop out Lower support bracket allows for easy removal of entire rear end housing
  • Fluid changes are simple and convenient with drain and fill holes integrated into our design
  • Shocks and springs are easily removable for quick maintenance or spring swaps
  • Splined sway bar using retaining collars and can easily be removed in minutes for track tuning
 

Description

58.75” track width at hubs
59.25” track width with brakes
7.75 – 8.00” BS on a 12 wheel for 66-67 Chevelles
13.25” ride height on Afco Shocks
.095 wall 32” 1.25” O.D. rear sway bar
1.375” diameter CV axles
31 or 35 spline inner stub axles
Large diameter Chromoly 934 inner CV joints with Hi-temp racing vented boots
930 outer chromoly CV joints with Hi-temp racing vented boots connect to Hi-HP custom
machined outer stub axles
1.625” .125 wall DOM Lower control arm tubes
1.25” .125 wall DOM upper control arm tubes
Bracketry and cross members fabbed from 10 ga. Mild steel and ¼” steel in hi-stress areas
All brackets and mounts double sheared
Grade 8 Fine thread hardware with Nylon Locking nuts
6061 Aluminum hex shafts with aurora bearings for tie rods
Toe: 0
Caster: 0
Camber: 0
Recommended camber setting: -.75 degrees
Max (-) camber obtainable: -2.75 degrees (not recommended for street use)

Performance

-.90degrees of camber gain per inch of compression
Camber gain matched with roll angle of vehicle to keep best possible tire contact for grip and traction
.02” bump steer over 3 inches of compression
55 % anti-squat (No other IRS offers this)
3.75” Roll Center height
Minimal lateral movement of roll center keeps car stable and predictable
Camber curve matched with front suspension for the ultimate package
.75 motion ratio allows shocks and springs to work at their best and give the best rideand handling possible

Installation

With a 28” tall tire the installed height of the top of the IRS frame rails and crossmember is 20.50” measure accordingly for taller and shorter tire heights
For installation clearance you need 10.5” forward and aft of axle center line to clear crossmembers and components
Outside rail dimension: 31.875”
Inside rail dimension: 27.875”

Difference vs. competitors

  • The only independent suspension made with a true upper control arm, competitors use a floating upright supported by a weak u-joint or a generic single tube upper link to hold wheel in place while not providing any performance gains
  • RS suspension is designed to be an improved, more hi performance and much more bullet proof design then the stock 2011 C6 corvette
  • Competitors are designed around 1960’s Jaguar technology which was never designed to be hi-performance or handle and High HP applications
  • RS bracketry and crossmembers are designed for strength and rigidity competitors are modified versions of street rod and show car rear ends originally designed for light weight hot rods. They are prone to flexing which can cause wheel hop under braking and acceleration
  • RS uses to most hi performance top of the line CV joints and axles which are commonly used on 1000hp plus drag race applications as well as some of the most winning road race vehicles
  • Competitors either use thin wall tube axles with U-joints that are not recommended beyond 450hp or as an upgrade they provide generic small diameter CV axles with Chinese non-performance CV joints. These are not recommended for above 600hp

Shipping

  • Crating Charge For Chassis [$150]
  • Shipping Charges [TBA]

IL Sales Tax [8%]

Click here if you live in the State of Illinois

Next Step

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Car Info

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Fast Track IRS Assembly: $8,495.00
2x4 Straight frame rails off cradle assembly [Add $500]
2x4 universal rear clip assembly [Add $1495]
Upgrade to 35 Spline Inner Stub Axles [Add $225]
Upgrade to 1,000 HP Drive Axles [Add $800]
IRS 1.25" Splined Sway Bar [Add $300]
Rear End Gears (You Choose Ratio) Open[Add $595]
Rear End Gears (You Choose Ratio) With Posi[Add $1095]
Rear End Gears (You Choose Ratio) With Tru-Track Posi[Add $1250]
Rear End Gears (You Choose Ratio) Nodular Case Tru-Track Posi[Add $1650]
Upgrade to Double Adjustable Coilovers [Add $300]
Upgrade to Remote Reservoir Double Adjustable Coilovers [Add $995]