RENAULT ALPINE GTA & A610
Suspension
Anyone that is planning on fitting aftermarket springs or dampers may find the following information useful.
Factory Spring Rates
The following table gives the standard spring rates for production vehicles
|
VEHICLE |
Spring Rate FRONT |
Spring rate REAR |
|
V6 GT & TURBO 1986- |
233lbs/inch |
350lbs/inch |
|
|
24mm/100kg |
16mm/100kg |
| V6 GT & TURBO 1988- | 243lbs/inch | 310lbs/inch |
|
|
23mm/100kg |
18mm/100kg |
| A610 1992- | 294lbs/inch | 399lbs/inch |
|
|
19mm/100kg |
14mm/100kg |
Uprated Spring Rates
The following table gives the uprated percentages for commonly available aftermarket spring rates.
|
VEHICLE |
AXLE |
250lbs/inch |
300lbs/inch |
350lbs/inch |
400lbs/inch |
450lbs/inch |
500lbs/inch | 550lbs/inch |
|
V6 GT & TURBO 1986- |
FRONT |
+7.0% |
+28.7% |
+50.2% |
x |
x |
x | x |
|
REAR |
x |
x |
Standard |
+12.5% |
+28.9% |
+42.9% | x | |
|
|
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|
V6 GT & TURBO 1988- |
FRONT |
+3.0% |
+23.5% |
+44.0% |
x |
x |
x | x |
|
REAR |
x |
x |
+12.9% |
+29.0% |
+45.2% |
x | x | |
|
|
||||||||
|
A610 1992- |
FRONT |
x |
+2.0% |
+19.0% |
+36.0% |
+53.1% |
x | x |
|
REAR |
x |
x |
x |
Standard |
+12.8% |
+25.3% | +37.8% | |
|
|
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e.g. For an approximate 25% all-round increase in stiffness for a 1988- V6 GT or Turbo, you could fit 300lbs/inch springs front & 400lbs/inch springs rear.