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Jason Ross's Turbo LS-powered Holden UC Torana

By Mark Arblaster | Photos: Ellen Dewar & Chris Thorogood, 24 Jul 2019 Features

Jason Ross's Turbo LS-powered Holden UC Torana

One of the stars of Street Machine Drag Challenge Weekend 2019 was Queenslander Jason Ross in his turbo LS-powered UC Torana

Jason's Torana ran an incredible 8.63 on Day Three at Willowbank on a 235 radial, with a 1.26sec 60-foot. That PB saw Jason take out the Tuff Mounts 235 Radial Blown class.

This article was first published in the July 2019 issue of Street Machine

Holden UC ToranaWhat is even more impressive is that the whole turbo and driveline set-up owes Jason less than $9K. “This car is budget, and I mean budget,” he says. “The motor came from under a guy’s verandah, and had been sitting there with the heads off in the dirt and was all rusted up.

Watch the video: Jason's UC Torana at Drag Challenge Weekend 2018

Jason Ross“We didn’t strip it, just hit the bores with Inox and emery paper, made sure the bottom end was all tight and put it in the car with a secret-squirrel cam from Garage Works in Melbourne,” he continues. “They also supplied the stock ECU, wiring looms, valve springs and 1000cc injectors, and we slapped it together and hit the key.”

The hot side is just a set of eBay stainless headers, a second-hand Chinese eBay T4 turbo that is somewhere between a GT42 and GT45, and a single 44mm Tial wastegate.

Read next: Blown Holden six-powered UC Torana

Holden UC Torana“We are constantly trying to sort this thing,” Jason says. “Recently we changed from 31- to 35-spline axles and have ditched the eBoost, as I find it too hard to work with and it sends the engine into overboost, which shuts it down. We’ve gone back to old-school with a T-piece off the turbo gate.

“We find the Hoosier tyres are working best for us and we are running over 127mph to half-track, although we detected a converter slip problem in the back half of the track when we raised the boost from 10 to 16psi.”

Jason RossSuspension upgrades are limited to a set of Competition Engineering three-way adjustable shocks all ’round and a Competition Engineering anti-roll bar on the rear.

“I really didn’t expect much from the car, but I shit my pants when we took it for a run initially,” Jason laughs. “I told people it would go a bottom nine first run, and it did. Then I said it would run an eight, and it did. I can see this car going into the 8.40s once we sort the transmission issue.”

Jason Ross

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