262/272 Degrees advertised duration, 9.30mm/9.35mm lift.

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272 Degree street / strip cams. No cylinder head clearancing needed. OEM spring can be used with 7500rpm and 1bar of boost.
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| Engine Make: | Engine Model: | Part Number: | |||||
| NISSAN | RB25 NVCS | 246-A2 | |||||
| Valve Clearance: | Intake: | Set | at the | ||||
| Exhaust: | Set | at the | |||||
| Cam Lift: | Intake: | 9.30mm | Exhaust: | 9.35mm | |||
| Rocker Ratio: | Intake: | 1 | Exhaust: | 1 | |||
| Nett Valve Lift: | Intake: | 9.30mm | Exhaust: | 9.35mm | |||
| Advertised Duration @ | 0.10mm | Intake: | 262 | Exhaust: | 272 | ||
| Duration @ | 1.00mm VALVE LIFT | Intake: | 222 | Exhaust: | 226 | ||
| Timing @ | 1.00mm VALVE LIFT | IVO: | EVO: | 47 BBDC | |||
| IVC: | EVC: | 1 BTDC | |||||
| Suggested Centre Lines: | Intake: | VARI | Exhaust: | 114 | |||
| VALVE | Lift @ TDC | Intake: | Exhaust: | 0.85 | |||
| Product Name | Kelford Cams RB25 VCT Camshafts 262/272 9.30mm/9.30mm lift (246-A2) |
|---|---|
| Brands | Kelford |
| Engine | RB25 |
| Make | Nissan |
Delivery & Freight
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Why choose matched valve springs for performance cams?
Spring pressure must match the cam profile and rpm limit. Too little causes valve float; too much causes wear.
Do I need adjustable cam gears?
They allow fine-tuning of cam timing, especially useful after head machining or when running non-standard cams.
What is the maximum RPM for the Kelford Cams RB25 VCT Camshafts 246-A2?
These camshafts are designed to operate effectively up to 7500 RPM. Ensure that your engine is properly tuned and that you are using quality fuel to achieve reliable performance at this RPM.
Do I need to modify my cylinder head to install the Kelford Cams 246-A2?
No cylinder head clearancing is needed for these camshafts, making installation straightforward. However, always double-check your specific engine setup for any unique requirements.
What boost level can I run with the Kelford Cams RB25 VCT Camshafts 246-A2?
These camshafts can handle up to 1 bar of boost. Ensure your engine is properly built and tuned to support this boost level for optimal performance.
Can I use OEM valve springs with the Kelford Cams 246-A2?
Yes, OEM valve springs can be used with these camshafts, provided your setup is within the specified RPM and boost limits. However, consider upgrading to performance springs for enhanced reliability under high-stress conditions.
What are the recommended valve clearances for the Kelford Cams 246-A2?
While specific clearances can vary, it is essential to set your valve clearances according to your engine's specifications and the camshaft's lift. Consult your engine manual or a professional for precise measurements.
