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CATCAMS Camshafts Honda D16A9 D16Z5 1.6 16v DOHC - 5 Profiles
CATCAMS camshafts for the Honda D16A9 / D16Z5 1.6 16v DOHC: 5 profiles, from fast road (2500412, 2500413) to competition (2500418, 2500415, 2500414). Valve lift from 10.20 to 12.20 mm depending on the profile.
These camshafts from CATCAMS come in 5 profiles for the Honda D16A9 / D16Z5 engine. Each Cat Cams part number includes the intake and the exhaust profile.
The 5 available profiles 
| Reference | Use | Duration at 0.1 mm | Duration at 1.0 mm | Valve lift | Cam lift |
|---|---|---|---|---|---|
| 2500412 | Sport | 240° / 234° | 207° / 200° | 10.20 mm / 10.25 mm | 5.80 mm |
| 2500413 | Sport | 247° / 240° | 214° / 207° | 10.45 mm / 10.20 mm | 5.90 mm / 5.80 mm |
| 2500418 | Hot street and dirt track | 263° | 226° | 11.20 mm | 6.30 mm |
| 2500415 | Tarmac rally and race | 314° | 244° | 10.85 mm | 6.15 mm |
| 2500414 | Tarmac rally and race | 330° | 258° | 12.20 mm | 6.80 mm |
Timing and lift at TDC
| Reference | Lobe angle | Intake timing at 1.0 mm | Exhaust timing at 1.0 mm | Lift at TDC | Lash ramp |
|---|---|---|---|---|---|
| 2500412 | 110° | -7° / 34° | 30° / -10° | 0.75 mm / 0.55 mm | 0.28 mm |
| 2500413 | 110° | -3° / 37° | 34° / -7° | 1.05 mm / 0.75 mm | 0.28 mm |
| 2500418 | 108° | 5° / 41° | 41° / 5° | 1.75 mm | 0.28 mm |
| 2500415 | 106° | 17° / 47° | 47° / 17° | 2.95 mm | 0.35 mm |
| 2500414 | 106° | 24° / 54° | 54° / 24° | 3.90 mm | 0.35 mm |
Intake / exhaust values, taken from the official Cat Cams data sheets.
Valve train to be fitted
- 2500412 and 2500413: stock valve train retained (O.E.M. rocker arms, lash, valves, locks, retainers and springs). Stock spring rate given by Cat Cams: fitted load 14 kg at 41.3 mm intake and 15 kg at 40.2 mm exhaust, 53 kg and 50 kg at 11.5 mm lift.
- 2500418, 2500415 and 2500414: CATCAMS PAC-S90015 springs and 99412 (upper), 99538/O (intake lower) and 99539/O (exhaust lower) retainers required. Fitted load 31 kg at 37.5 mm, maximum load 79 kg at 12.5 mm lift. The full set is available as a complete 16-valve kit.
Cat Cams recommendations
- All profiles: engine with rocker arms; Cat Cams can repair the rocker arms if the wear is not excessive.
- 2500413: ECU reprogramming advised.
- 2500418 and 2500415: only for dirt track applications and pro street use with adjustable engine management or carburettors.
- 2500418, 2500415 and 2500414: check that the distance between valve seal and retainer is at least 0.6 mm at full lift; use "GOLD quality" springs over 12.5 mm valve lift or 8,500 rpm.
- 2500414: competition only, with independent engine management (throttle position sensor) or carburettors. To be verified: camshafts must turn smoothly in the cylinder head (machine where needed), at least 0.6 mm between valve seal and retainer at full lift, minimum valve spring travel of 1.0 mm at full lift, valve-to-piston clearance of 1.0 mm (1.5 mm preferred), checked 5 to 15° before TDC on exhaust and after TDC on intake.
Engine applications
- Honda D16A9 / D16Z5 1.6 16v DOHC, 4-cylinder, 1590 cc
- Engine codes: D16A9, D16Z5
CATCAMS expertise in camshafts and their accessories (valve springs, mechanical lifters, adjustable pulleys and more) has been recognised worldwide for many years, built on craftsmanship and precise study of engines and applications. Every camshaft profile and spring rate has been developed according to the specific features of each engine and to its intended use (road, sport, rally, drag, circuit and more).
Image for illustration only
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Brand
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Reference2500415/S
