Putting the Squeeze on

by Susan Moore | Jul 2, 2015 | Pistons/Piston Pins, Published Stories, Tech How-To | 4 comments

The Importance of Compression Ratios and How to Measure Them: Since race pistons in domestic V-8 engines move up and down in excess of 100 times per second, replacing them is a normal part of a racer’s routine. NHRA Top Fuel and Funny car teams replace them after...

2015 Mustang upgrade: the trouble with supercharging

by Susan Moore | Jun 7, 2015 | Clutches, News | 3 comments

By Sam Logan: Adrian Gomez, an industrious 27-year old who manages Mak Performance, a Miami specialty shop established in 1995, bought a 2015 Mustang 5.0 and with fewer than 7,000 miles on the clock installed a Pro Charger centrifugal supercharger. It extended the...

Basic installation rules from TorqStorm

by Susan Moore | Jun 2, 2015 | Induction, News | 18 comments

By Alfie Bilk: Fuel pump requirements for carbureted systems must be capable of supplying proper amount of fuel at maximum operating pressure. To obtain maximum fuel pressure required under boost, add idle fuel pressure to maximum boost pressure.  Read condensed...

Ovality and other guarded racing piston shapes

by Susan Moore | May 15, 2015 | News, Pistons/Piston Pins, Tech How-To | 2 comments

By Titus Bloom: Gibtec, makers of custom billet competition pistons reveals… Below their ring lands, pistons are neither round nor do they have parallel sides. Instead they have a larger diameter towards the bottom, between the base of the piston and the piston...

Impressive diesel gains: 2.1lb weight-saving per cylinder

by Susan Moore | May 15, 2015 | News, Pistons/Piston Pins, Tech How-To | 0 comments

Irvine, CA: At CP-Carrillo, two hybrid combinations are in the final stages of testing. One is designated for the common rail 5.9 liter Cummins using a Duramax pin size and compression height with a rod length of 0.856in longer than stock. The other combo is developed...

Cure for uncomfortably high clutch pedal on late-model street cars

by Susan Moore | May 14, 2015 | Clutches, News, Tech How-To | 9 comments

By Sam Logan: Most late-model street vehicles use an internal hydraulic clutch release bearing, sometimes called a concentric slave cylinder (CSC). Yet, unfathomably, many of them suffer from clutch engagement high on the pedal travel. For most drivers, this is not...