
Supertech
Conical Spring Kit w/ Steel Retainers – BMW | N54 Turbo
SKU: SUP SPRK-FE20N54-BE-2
$1,458.90
High-performance conical valve spring kit with steel retainers for BMW | N54 Turbo, improving valve control, high-RPM stability, and durability.
| Attributes | |
|---|---|
| Spring Type | Conical Valve Spring |
| Seat Pressure | 88lbs @ 36.50mm |
| Retainer Material | Steel |
| Specs | |
|---|---|
| Outer Spring Od | 24.40mm |
| Outer Spring Id | 17.60mm |
| Inner Spring Od | 21mm |
| Inner Spring Id | 14.20mm |
| Seat Pressure | 88lbs @ 36.50mm |
| Open Pressure | 160lbs @ 10.00mm |
| Max Lift | 12mm |
| Coil Bind | 23.20mm |
| Safe Rpm Limit | 8000 |
| Retainer | ret-bmn54-ti ; ret-bmn54-te |
| Retainer Qty | 12 ; 12 |
| Kit Spring | spr-fe20be-2 |
| Rate | 8.6lbs/mm |
| Kit Spring Qty | 24 |



