Tech Help

Jun
1
2015

Todd Okuhara, Schumacher Racing

“Eight years ago, I started with Schumacher Racing; five years ago when we encountered excessive pushrod deflection I switched to Trend Performance. We’ve been with Trend since.” Todd...

May
11
2015

How the Modern Racing Pushrod was Invented

The most revealing sign of a pushrod’s capability is its resistance to undue deflection—its column stiffness. Until 1993, meaningful research into valve train testing had not been possible. It...

May
11
2015

Why pushrods fail

Today theMichiganfirm Trend Performance is the largest manufacturer and supplier of pushrods in racing and in the performance after market. But in 1988 when Bob Fox founded his pushrod company,...

May
11
2015

Beerhorst on boosted engines and how a Spintron finds power and detects trouble

Hot Rod magazine has been at our industry’s forefront longer than most of us have been around. Though they’ve been sustaining the momentum of hotrods since January 1948, often it’s to their...

May
11
2015

Titanium valves, lash caps and pressed-in hard tips: Trying to find supremacy in the racing valve train

Lash caps increase the diameter of slender valve tips. On race engines running skinny 6 or 7mm valves, lash caps allow the nose roller of the rocker arm a greater footprint on which to operate....