Part #

Description

CT Racing has done significant amounts of flow bench and dyno testing to offer you the best port layout for your application. We highly recommend getting a valve job at the same time the head is being ported. Our CNC valve job ties in with the port work to offer extremely effective flow numbers. We have found the 800 really runs well with oversize valves, so if your planning on porting budget oversize +1mm valves.

Quality valve job.

The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve.

The 5 angle radius Race valve job significantly raises the flow characteristics at low valve lift and definitely shows a horsepower increase throughout the useable power curve. The 5 angle valve job really shines on big valves as the seat diameter is opened up all the way into the aluminum casting, blending to the port work. Adding +1mm valves to a modified engine package helps the mid to top-end horsepower. Most aftermarket hi compression pistons are clearanced for +1mm valves.

820cc Big Bore Kit - '07-'11 RZR 800 - PUMP GAS

Kit includes: 83mm Big Bore Cylinder, JE Forged 10.75:1 Piston Kit, and Cometic Top-End Gasket Set.

Must RETURN a Good Useable Cylinder Core

820cc Big Bore Kit - '07-'11 RZR 800 -

RACE GAS 100 OCTANE RECOMMENDED or pump gas above 4000 ft.

Kit includes: 83mm Big Bore Cylinder, JE Forged 12:1 Piston Kit, and Cometic Top-End Gasket Set.

Must RETURN a Good Useable Cylinder Core

Cometic Gasket Kits

Winderosa Gasket Kits

Web Camshaft

Web Camshaft, performance profile designed to increase overall power. New followers recommended for this application, see part 56-203. Requires Exhaust System, and Performance Valve Spring Kit. Check ALL clearances! Price Per Set (2).

Lift: .435 intake .435 exhaust              Duration: 272 intake 272 exhaust

These cams are Hard welded, so the require stock cores (Core charge is $173.00).

Hot Cams Camshaft

Stage 1 - Low and mid-range torque increased over stock. Peak torque increased over stock. Slight loss in high RPM horsepower. Requires valve spring kit #VSK5001. May require FI remapping for optimum performance. May require clutch modification for optimum performance

Lift (mm): 10.67 intake 10.41 exhaust              Duration (degrees at 1mm): 240 intake 235 exhaust

Stage 2 - Horsepower and torque are improved at all RPM. Will perform fine with stock exhaust system, but best performance will be produced with an aftermarket exhaust system. Will compliment modified engines that require increased intake and exhaust flow.

Lift (mm): 11.43 intake 10.67 exhaust              Duration (degrees at 1mm): 247 intake 245 exhaust

Builder Series - Low RPM torque is very similar to the stock cam. Torque peak is improved and the peak horsepower is improved. This cam is best used with engines that have modified intake and exhaust. It will compliment engines that require improved intake and exhaust flow.

Lift (mm): 11.68 intake 10.67 exhaust              Duration (degrees at 1mm): 257 intake 254 exhaust

1 CAM SIDE MAIN BEARING INCLUDED