Making an engine produce a reliable 707 hp on pump gas takes some serious engineering. SRT's best and brightest spent some serious engineering effort into making sure the Hellcat engine doesn't burst under the hellacious strain. We sent our best engineering mind, Road Test Editor Robin Warner, to Auburn Hills to find out how Chrysler tamed the Hellcat.

Here are seven engineering facts we learned:

No, seriously. Real diamonds in every Hellcat!

It takes 80 horsepower to spin the massive supercharger, so the crankshaft pulley must be secured extremely tightly—and regular steel washers don't have the friction to clamp on with enough force. So Chrysler sourced diamond-embedded steel washers, which aren't new, but are not very common—or cheap. The industrial diamonds raise the coefficient of friction three-fold over straight steel, and grip on to the crank with zero slip. The washers also make a lovely anniversary gift.

Better fuel economy than a Porsche 911 GT3.

707 SAE-certified HP, and yet, if you opt for the 8-speed ZF automatic transmission, you get 22 mpg on the highway. The GT3 only manages 20. That means fewer stops at the pump, not to mention the comparatively tiny withdrawal from the bank upon purchase.

READ MORE: 2015 Dodge Charger SRT Hellcat: Most powerful sedan on Earth

Foot to the floor equals near constant flow.

To spit enough fuel into the chamber for combustion, each massive 630 cc-per-minute fuel injector starts pumping go-juice onto the closed intake valve during the power cycle and finally stops midway through the intake cycle, basically running for three of the four cycles. To keep up with demand, Chrysler installed half-inch fuel lines.

It's a super-intake-inter-charger-manifold-cooler!

The IHI sourced supercharger spins up to 14,600 rpm, delivers 11.6 psi of boost, and weighs 80 pounds. A single unit includes the throttle body as well as twin water-to-air intercoolers (one for each bank), and bolts directly to the cylinder heads.

READ MORE: A weekend with the Hellcat

Two cooling systems.

In addition to the main cooling system that regulates engine temperature with 140F degree fluid, a second system runs at 104F to cool the intake charge. This "low-temperature" completely sealed system runs its own fluid and electric water pump, and uses computers to regulate flow.

To ingest enough air, it has two inlets.

One inlet sits next to the driver's side headlight. The second sucks air from beneath. The latter orifice adds a claimed 10-15 horsepower. In other words, thank it for the number that starts with a seven.

READ MORE: Meet $1.65M worth of Dodge Challenger Hellcat No. 1

Viper Hellcat?

No. The engine is too wide to slip in-between the snake's front tires. Blame the wide Hemi cylinder heads. But then praise them for tremendous airflow. One reason for this is twin spark plugs, which allow for bigger valves because a single spark plug would take up room in the center of the cylinder.

READ MORE: 10 things we learned driving the 2015 Dodge Challenger SRT Hellcat

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io