Camshafts
Hotcams
As the leader in innovation, design and development of aftermarket dirt bike and ATV high-performance camshafts, a set of Hot Cams is certain to give the added power gains that dirt bike and ATV enthusiasts are looking for. CNC crafted from billet steel and with multiple stages to choose from for many applications, Hot Cams delivers the performance and feel of a custom cam for a fraction of the price. Ease of installation is also a big benefit when it comes to Hot Cams, as nearly all cams require no additional machine work and utilize the stock valve springs. And, as has always been the policy at Hot Cams, you can keep your original cams as a core exchange is never required.
Hot Cams Performance Camshaft Designed, dyno-proven and made in the USA, Hot Cams performance camshafts are one of the most economical, reliable and easy to install ways to add a 5-10 percent power gain to an engine. Additionally, every Hot Cams camshaft is:
• CNC machined for an exact fit and lobe profile. • Created from 8620, billet, case-hardened steel.
• Engineered by utilizing state-of-the-art valvetrain software. • Engineered to be drop-in cams that use stock valve springs.
Intake
Exhaust
HUSQVARNA
Lift
Duration
Lift Duration
Models
Years Hot Cam
(mm)
(@ 1mm) (mm) (@ 1mm) Part No
Intake Cam. Stage 1. Gains all the way to 11,000 RPM with slight loss 11,000 RPM to rev limiter: Designed with Improved Throttle Response (I.T.R.) technology. *1
2016 - 22
10.86
242°
56-C154.STG1
Intake Cam. Stage 2. Cam is equal to stock up to 8,200 RPM then gains up to rev limiter: Designed with Improved Throttle Response (I.T.R.) technology. *1 Exhaust Cam. Stage 1&2. For use with both Stage 1 and Stage 2 intake cams: See intake performance description for gains: Designed with Improved Throttle Response (I.T.R.) technology. *1
2016 - 22
FC 250
11.63
253°
56-C154.STG2
2016 - 22
10.51 238.30° 56-C154.EXH
Intake
Exhaust
KAWASAKI
Lift
Duration
Lift Duration
Models
Years Hot Cam
(mm)
(@ 1mm) (mm) (@ 1mm) Part No
Intake Cam. Stage 1. Good midrange and top-end increase. *1
9.14
253°
56-C305.IN
KX 250F
2004 - 10
Exhaust Cam. Stage 1. Good midrange and top-end increase. Must be bought in conjunction with the above cam 56-C305.IN. *1,*8 Intake Cam. Stage 1. Improves torque up to 9400 RPM and delivers higher peak torque than OEM. Designed with Improved Throttle Response (I.T.R.) technology. *1 Exhaust Cam. Stage 1. Increased low to mid RPM torque up to 9400RPM and higher peak torque. *1,*8 Intake Cam. Stage 2. Improves peak torque and peak horsepower at all RPM’s: Designed with Improved Throttle Response (I.T.R.) technology. *1 Exhaust Cam. Stage 2. Will provide improved torque at all RPM, much improved peak torque and increased peak horsepower. *1,*8 Intake Cam. Stage 1. Good power increase from 4,000 RPM to redline: Designed with Improved Throttle Response (I.T.R.) technology. *1 Intake Cam. Stage 2. Excellent mid-range and top-end increase over 8,000rpm, with no loss on the bottom-end: Designed with Improved Throttle Response (I.T.R.) technology. *1 Exhaust Cam. Stage 1&2. For use with both Stage 1 and Stage 2 intake cams Designed with Improved Throttle Response Technology. *1,*8 Intake Cam. Stage 2. Designed to be used as a set with the exhaust cam. Will provide improved full throttle torque and horsepower at 4000RPM and up. Exhaust Cam. Stage 2. Designed to be used as a set with the Intake cam. Will provide improved full throttle torque and horsepower at 4000RPM and up. Intake Cam. Stage 1. No bottom-end loss with strong mid-range to top-end gains *1,*8 Exhaust Cam. Stage 1. No bottom-end loss with strong mid-range to top-end gains. Must be bought in conjunction with the above cam 56-C306.IN. *1,*8 Intake Cam. Stage 1. Increased low-end and mid-range power up to 8000 RPM with a slight loss on top-end: Improved throttle response. *1 Exhaust Cam. Stage 1. Increased low to mid RPM power up to 8000 RPM with a slight loss on top-end: Improved throttle response Must be bought in conjunction with the above cam 56-C204.IN. *8 Exhaust Cam. Stage 2. Dual cam engine. Intake and exhaust cams sold separately. Good overall cam equal to stock 5300 RPM to 6300 RPM otherwise gains everywhere. With best gains 6300 RPM to max RPM. Cam uses stock auto-decompression mechanism. Uses stock valve springs.
7.98
244°
56-C305.EX
9.3
252.3°
56-C329.IN.STG1
8.89 243.10° 56-C329.EX.STG1
KX 250F
2011 - 16
9.3
252°
56-C329.IN.STG2
8.92 246.88° 56-C329.EX.STG2
9.9
107°
56-C155.IN.STG1
KX 250F
2017 - 19
10.41
254°
56-C155.IN.STG2
9.65
256°
56-C155.EX.STG
9.07
238.5°
56-C301.IN.STG2
KLX 400 R/SR 2003 - 04
9.05
238°
56-C301.EX.STG2
9.85
245°
56-C306.IN
KX 450F
2006 - 08
9
236°
56-C306.EX
9.14
234°
56-C204.IN
KX 450F
2009 - 15
8.38
240°
56-C204.EX
10.160mm
KX 450F
2016 - 18
10.160 259°
56-C165.EX.STG2
*1: Uses stock valve springs. *2: Uses stock valve springs & rockers. *3: Shim kits available.
*4: Cam sold in front & rear sets. *5: Cam specs taken at lifter. *6: Includes adjustable cam timing sprockets.
*7: Auto-decompressor on exhaust cam. *8: Uses stock auto-decompressor mechanism.
*Please visit our website for current prices E203a
www.oro2u.com
Tel: 01597 822 666
Fax: 01597 825 224
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