Supertech parts

Part number VS-VBM6E.
Supertech exhaust valve seal for 6mm valve stem.
For:
Opel / Vauxhall - 2.0 16V (Z20LET/LEH)
Audi / VW - 1.8T 2.4 2.7T 2.8 3.0 (5V/cyl.)
BMW - M42, S42, M50, M52, M54, S50 (USA), S52 (USA), S54

Part number VS-VW7E.
Supertech exhaust valve seal for 7mm valve stem.
Audi / VW 4-5 cylinder engines - 1.8 16V, 2.0 16V, 2.2T 20V, 2.3 20V (KR, PL, 6A, 9A, ABF, 3B, AAN, ABY, ADU, 7A)

Springs data:

Seat pressure - 83lbs @ 34mm
Open (lift) pressure - 191lbs @ 10mm
Spring coil bind - 20.70mm
Rate - 12.10lbs/mm
Max lift - 13.30mm
Outer spring outer diameter: 27.50mm
Outer spring inner diameter: 20.00mm
Inner spring outer diameter: 20.00mm
Inner spring inner diameter: 15.20mm

Set includes:

Dual springs: 16 pcs. SPR-TS1015-F4R
Titanium retainers: 16 pcs. RET-TS55-T5R
Seats: 8 pcs. SEAT-F4R-EX, 8 pcs. SEAT-F4R-IN

Spring data:
Outer spring outer diameter: 25.00mm
Outer spring inner diameter: 18.00mm
Inner spring outer diameter: 18.00mm
Inner spring inner diameter: 13.00mm
Seat pressure: [email protected] (seat), [email protected] (open/lift)
Spring coil bind: 21.00mm/17.00mm
Max lift: 14.40mm
Rate: 12.60Lbs/mm

Set includes: