Category Archive: 1320 Engine Tech, 1320 Tech Story, Apex Engine Tech, Apex Tech Stories, ENGINE, ENGINES, TECH, Tech Stories, Videos, XL Engine Tech, XL Tech Stories

HOW MUCH POWER IS CAM LIFT WORTH? BTR TRUCK NORRIS VS TRUCK NORRIS NSR LOW LIFT. DOES LIFT MAKE HP?

Camshafts, regardless of the engine platform, have three measurements that define them. Lift, or the amount the camshaft will open the valves, duration which is the amount of time the camshaft will...

Too much boost?? Too much RPM?? Understanding Starting Line Tuning With Peter Harrell.

Let’s take a look at what causes traction issues on the starting line in turbo cars. Tuning cars for maximum power takes skill but tuning a car to leave the starting line with full power takes...

JUNKYARD LS PLUG GAP TEST. DOES MORE GAP EQUAL MORE POWER? HOW MUCH SHOULD I RUN? .010 VS .100 GAP

Spark plug gap is one of those things that some folks SWEAR makes a huge difference in power. It goes right along with the guys that think that indexing plugs is a big performance trick, but...

CHEAP, JUNKYARD 5.3L CAM TEST. BTR CAMSHAFT FAMILY FEUD-TRUCK NORRIS VS HOT ROD VS SS2? WHO WINS?

Who will reign supreme? It’s a battle of cheap 5.3 LS camshafts from Brian Tooley Racing. I can tell you which one I’d pick, but I’m going to let you watch and decide for yourself....

CHEAP, BROKEN, JUNKYARD 4.8L-WILL IT RUN? WITH SO MANY ISSUES, CAN THE DAMAGED LS COME BACK TO LIFE?

So you find a cheap 4.8 or 5.3 for sale on Facebook Marketplace, and take it home to clean up and put into your project car or truck, only to find that it has a bunch of issues you weren’t...

Mike Murillo LaFawnduh Fire Aftermath Pt. 1: The Tear Down, What Went Wrong, And Future Plans

Last week we shared the scary fire video from Mike Murillo Racing, where his famed LaFawnduh Mustang burned very badly. Luckily Mike was wearing safety gear and was able to get out of the car without...

Peter Harrell, Of Harrell Engine And Dyno, Shows What It Was Like Tuning Cleetus McFarland’s Mullet To A Whole New Level

While Cleetus McFarland has certainly enjoyed some success behind the wheel of his cars, and does a great job tuning most of them,  when the new engine went into the El Camino they call Mullett, he...

Polishing Turds: Part 12, Final Assembly Before Dynoing This Thing!

In this new episode of the Polishing Turds series from HED you are going to see the final assembly of the engine finally completed! Can you guess how much power it is going to make on the dyno? Pete...

HOW TO MAKE SUPERCHARGED 5.0L FORD POWER. WHAT HAPPENS IF YOU ADD HEADS, CAM, INTAKE AND BOOST?

If you have a 5.0 Ford, aka a 302, and you want to add power to that bad boy, there are tons of options available. After all there are a lot of camshafts, intakes, superchargers, cylinder heads, and...

DO PORTED HEADS ADD POWER ON A TURBO LS? YES, BUT DO YOU REALLY NEED THEM? ARE THE DECKS TOO THIN?

Does porting your stock LS heads make sense when you are going to add a turbocharger to the mix? The easy answer is yes. And the easy answer is no. Why both? Well, it kind of depends on what you are...

TUNE PORT INJECTION-LONG RUNNER VS SHORT RUNNER-WHICH ONE MAKES MORE HP, WHICH ONE MAKES MORE TORQUE?

Long vs Short Runner intake manifolds is a discussion that has been going on for decades. Which is right for my combo? Which one makes the most power? Which one makes the most torque? Is there...

LOW-BUCK vs MO-BUCK, CHEAP, JUNKYARD 454 VS GM ZZ454 CRATE MOTOR-WHICH ONE WOULD YOU CHOOSE & WHY?

Junkyard vs Crate, this is a comparison that has been going on for a long time and people have a variety of opinions on which one is the best for a hot rod project. While both of the engines in this...

Polishing Turds: Part 11, This Thing Is Finally Going To Be A Whole Engine Again!

In this new episode of the Polishing Turds series from HED you are going to see the final assembly of the engine finally completed! Pete covered assembly prep and cam bearings, and other assembly...

HOW TO MAKE ALL-MOTOR JUNKYARD LS POWER. HOW MUCH ARE HEADS, CAM, AND INTAKE MODS WORTH ON A 4.8L, 5.3L OR 6.0L?

There was a time, not so long ago, when making one horsepower per cubic inch was considered to be a good mark for a performance street engine. Now that OE technology has come so far, that is pretty...