Articles written by: Wayne Scraba

Wayne Scraba is a diehard car guy and regular contributor to OnAllCylinders. He’s owned his own speed shop, built race cars, street rods, and custom motorcycles, and restored muscle cars. He’s authored five how-to books and written over 4,500 tech articles that have appeared in sixty different high performance automotive, motorcycle and aviation magazines worldwide.

This is the business end of the Holley HP ECU. The main harness assemblies plug into the two ports on the left (they’re designated J1A and J1B). The main power harness hooks up to the port on the right. The little blue port just left of J1B is the barometric pressure sensor (no hook up is required). (Image/Wayne Scraba)
Product Profiles

Holley HP EFI System Brings Pro Stock & COPO Performance to the Masses

We’ve taken a good look at many of the Holley (and MSD) fuel-injection systems available. They range from the basic, to over-the-top, in terms of function and capability. … You […]

How to Use Brake-Bleeding Tools to Save Time and Money
How Tos

How to Use Brake-Bleeding Tools to Save Time and Money

One of the most troublesome jobs in hot rodding or racing is brake (or hydraulic clutch) bleeding. Historically, the common method for bleeding brakes has been to have one person […]

(Image/Wayne Scraba)
Buyer's Guides

En-Gauge-ing: Must-Have Gauges for Your Race Car or Hot Rod

Having the capability of monitoring what’s going on inside a hot rod or race car is pretty important. Gauges are critical—that’s no secret, but when you start digging you’ll soon […]

(Image/Wayne Scraba)
Buyer's Guides

Tool Time: What to Look for When Shopping for a Floor Jack

A few weeks ago I was struggling with my old floor jack—I rolled it under my Nova and eventually lifted the car up. A big issue is the handle needs […]

(Image/Wayne Scraba)
How Tos / Tech

How to Set-Up and Tune Holley’s Dominator EFI System (Part 2)

In part one of this two-part segment, we dug into Holley Performance Product’s top-of-the-heap Dominator EFI system. If you recall, we noted how sophisticated this system is and how user friendly […]

(Image/Wayne Scraba)
Tech

Prevent Damage to Delicate AN Fittings with the Proper Tools

Wander through the pits at any drag race or examine enough cars at shows, and sooner or later you’ll find beat-up AN fittings. Some will have a few nicks and […]

(Image/Wayne Scraba)
Tech Articles

How to Set-Up and Tune Holley’s Dominator EFI System (Part 1)

It’s no secret that aftermarket electronic fuel injection (EFI) systems are becoming more and more commonplace. It should come as no surprise however, that some of the early systems were […]

Here’s a look at a camshaft in the process of being degreed. As you can see, the cam is driven by a Jesel belt drive, which simplifies the process dramatically (but that's another story). The 14-inch degree wheel is from B&B while the pointer is homemade. (Image/Wayne Scraba)
Tech Articles

Camshaft Degreeing Explained: Tools & Techniques for Degreeing a Cam

When a camshaft is “degreed” it means the camshaft position in the engine has been synchronized with the crankshaft position. Degreeing the cam is the only positive means to determine […]

(Image/Wayne Scraba)
Tech

Pro Tips for Setting Tire Pressure and Adjusting to Changing Track Temperatures

There are many questions related to adjusting tire pressure on a drag car, and it seems everyone has a different opinion. The reality is, every car will require a slightly […]

This dial indicator has been set up to read component runout and zeroed. That means the plunger has been run down part way through the range of travel. Once that is accomplished, the outer dial bezel is rotated to position a zero mark directly on the large needle. You can see here that the photo was taken slightly to one side. It shows the effects of not reading a gauge straight on. (Image/Wayne Scraba)
How Tos

Dial Indicator Tips: Advice for Choosing, Mounting, Zeroing and Measuring with Dial Indicators

One of the most important tools you’ll find in any racer or rodder’s tool collection is a dial indicator. They’re used for everything from degreeing a cam to checking run-out […]