Description
This is the Summit Racing stage 2 turbo cam for LS engines.
- Brand: Summit Racing
- Manufacturer’s Part Number: SUM-8716R1
- Part Type: Camshafts
- Product Line: Summit Racing® Pro LS Turbo Camshafts
- Summit Racing Part Number: SUM-8716R1
- Cam Style: Hydraulic roller tappet
- Basic Operating RPM Range: 3,000-7,000
- Intake Duration at 050 inch Lift: 232
- Exhaust Duration at 050 inch Lift: 234
- Duration at 050 inch Lift: 232 int./234 exh.
- Advertised Intake Duration: 281
- Advertised Exhaust Duration: 286
- Advertised Duration: 281 int./286 exh.
- Intake Valve Lift with Factory Rocker Arm Ratio: 0.600 in.
- Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.575 in.
- Valve Lift with Factory Rocker Arm Ratio: 0.600 int./0.575 exh.
- Lobe Separation (degrees): 115
- Camshaft Gear Attachment: 3-bolt
- Computer-Controlled Compatible: Yes
- Valve Springs Required: Yes
Camshaft Manufacturers Description: The Summit Stage 3 Turbo cam is specifically developed for turbocharged applications turning higher rpm. It will spool quickly and minimizes reversion caused by high turbine inlet pressures. It has state-of-the-art lobe designs stable to well over 7000 rpm with as little as 150 lbs. of seat pressure. 3000 rpm stall converter recommended.
Notes: Not for AFM or VVT equipped engines. Summit Pro LS cams are designed for engines swapped into pre-pollution controlled vehicles. They are not for use in registered emissions-controlled vehicles operated on public highways and roads. 3-bolt camshaft, computer tuning required.
The Summit Racing Pro LS Turbo cams are affordable and specifically designed to optimize cam timing with turbochargers. The lobes are stable up to 7,000-plus rpm with the exhaust lobes opening softly against high cylinder pressure for reduced stress on the valve train. Overlap has also been reduced in order to prevent reversion, which is typically seen with higher turbine inlet pressures. They come in distinct stages that give you the idle, spool, and power characteristics that match your engine and turbocharger. Starting with American bearing steel, they are precision machined on a Landis 3LB CNC grinder with CBN diamond wheels for unmatched quality. The lobes have been designed for stability at high rpm with the spring pressures found in commonly available quality spring packs.
This ships free anywhere in the lower 48! p/n 8716R1
