- By Jesel.
- Filed in Aftermarket Access.
JESEL is introducing a new cost-effective series of camshaft belt drives that utilize a one-piece upper pulley in place of JESEL’s traditional pulley/spider arrangement. It is more efficient to manufacture and easier to use, but still retains all of the functionality of the original JESEL belt drive design. Quick cam timing adjustments of ±8-degrees, easy cam swaps through the front cover and a 25mm reinforced High Torq Drive™ are some of the key features. Jesel’s belt drives are stronger than chains and gear drives, and help isolate crankshaft harmonic vibrations.
Mar 23
- By Jesel.
- Filed in Aftermarket Access.
Dart’s Big Chief cylinder heads for big-block Chevys are arguably the most popular cylinder heads in bracket and sportsman drag racing. They do however present a challenge to valvetrain designers due to their aggressive valve locations and pushrod angles that put extreme sideloads on shaft rockers. JESEL solved much of the problem with its “Zero Thrust” upgrade a couple of years ago that located a Torrington needle thrust bearing to absorb the side loads exerted on the rocker.
Jan 18
- By Jesel.
- Filed in Aftermarket Access.
LS motor enthusiasts are going crazy over GM’s L92 cylinder heads that offer huge flow numbers at an extremely reasonable price. The only component lacking for the L92 head was a race-ready performance valvetrain. JESEL solved that problem with a sophisticated shaft rocker system that is capable of delivering more power due to greatly reducing valvetrain friction, and providing rock-steady valvetrain stability at extreme rpm.
Much of the friction reduction is due to the 1.400” pivot length that reduces “scrub” between the rocker and valve tip. The rockers ride on precision needle bearings plus a .250”-wide needle bearing nose roller ensure smooth rocker action throughout the lift curve. Other standard features include JESEL’s proprietary 7000 series alloy rocker bodies CNC machined to JESEL’s exclusive Mohawk shape that provides the lightest and stiffest rocker possible. The rocker bodies also featured profiled tail sections for valve cover clearance and are shotpeened for added strength.
Aug 02
Who's Online?
The most users ever online was 437 on 08/14/2009.
Get in Touch
Advertisement
News by Company
News by Category
Advertisement
News by Make
Advertisement
Video Channels
News by Month
- January 2011
- December 2010
- November 2010
- October 2010
- September 2010
- August 2010
- July 2010
- June 2010
- May 2010
- April 2010
- March 2010
- February 2010
- January 2010
- December 2009
- November 2009
- October 2009
- September 2009
- August 2009
- July 2009
- June 2009
- May 2009
- April 2009
- March 2009
- February 2009
- January 2009
- December 2008
- November 2008
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
- April 2008
- March 2008
- February 2008
- January 2008
- December 2007
- November 2007
- October 2007
- September 2007
- August 2007
- July 2007
- June 2007
- May 2007
- April 2007
- March 2007
- February 2007
- January 2007
- December 2006
- November 2006
- October 2006
- September 2006
- August 2006
- July 2006
- June 2006
- May 2006
- April 2006
- March 2006
- February 2006
- January 2006
- December 2005
- November 2005
- October 2005
- September 2005
- August 2005
- July 2005
- June 2005
- May 2005
- March 2005