In our information-now era, it’s almost old news that Larry Larson drove his twin-turbo S10 pickup to the first five-second pass by a licensed and registered street-legal vehicle at the Street Car Super Nationals X in Las Vegas, Nevada just over a week ago. We’ve all seen video, photos and write-ups about the historic feat, accomplished by one of the pioneers of neck-snapping streetable performance.
Now Larson has posted a rather unique video that we are excited to share with you, our Dragzine faithful. The footage itself is of the historic 5.95 at 244 mph pass, as seen from the cockpit of Larry’s silver-hued S10. Peeking just over the hood of the passenger side, we’re treated to a glimpse of what it might be like to ride in the pickup’s passenger seat as it rockets into the clear desert afternoon. What makes the video so unique – as if video of riding shotgun in the only five-second street legal car on the planet weren’t unique enough – is that Larson has overlaid real-time data on the screen, giving the viewer a detailed look at what the truck itself is doing as it powers below the six-second mark.
The data, which consists of (left to right) a speedometer, tachometer, boost gauge, throttle position sensor (Throttle %) display, accelerometer (G-Force), and exhaust gas temperature (EGT) display, is highly detailed, featuring both analog gauge displays (well… a digital representation of an analog gauge) as well as more precise numerical readouts for each display.
The speedometer and tachometer are fairly widely recognized and understood, but some may not know what the other displays mean, or how they relate to the truck’s functionality. The boost gauge measures the amount of boost the monster twin turbos are creating, displayed as pounds per square inch. The throttle position display basically shows how much throttle Larson is giving the truck as he completes the burnout and 1/4 mile pass, displayed as a percentage of wide-open throttle, or WOT. Next is the accelerometer, which gauges the physical force the truck is creating as it drives forward. Think of this as what you feel in the “Seat of your Pants” when you drive away from a stop light in your car, only multiplied by 20!
Finally, the exhaust gas temperature readout measures the temperature of the spent exhaust leaving the engine. This is an accurate way to check the fuel ratio of the tune to make sure it’s not too rich (cool) or lean (hot).
Check out the video yourself and watch the data update in real-time as you race along with Larson to over 240 mph!