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+--- Thread: Oversized valves for XU10J4RS (/showthread.php?tid=36644)
Oversized valves for XU10J4RS - makovice - 21-02-2018
Hi, anyone with experience with oversized valves on XU10J4RS?? I bought Sinus Performance from SPOOX (+1mm). But when I measured weight of them I found they have about 56g instead OEM 48g. How much matter weight of them?
Other components:
- Wossner pistons (86mm) high compression
- Catcams H-beam rods
- Sinus Performance Valves (35mm + 31.7mm .... original has 34.1mm + 30.8mm) www
- Camshaft Piper 264deg www
- Valve springs - Piper www
So please any opinion?? Thank you very much.
RE: Oversized valves for XU10J4RS - welshpug - 21-02-2018
bigger valves are a waste of money, as are the springs for only that much camshaft, and the pistons and rods are not great quality, though the 285H cam has too much lift at TDC for the original piston, still borderline with +1mm deeper cutout.