Tommy Parry Tommy Parry

Lief Storer's GT-R: Big Dreams, Bigger Numbers

While Lief started out this ambitious build with a slightly different destination in mind, he ended up doing what so many GT-R tuners do: chase big numbers. In his case, however, he wasn’t after four-digit power figures; weight and lap times were the numbers he was preoccupied with.

Lief’s love for casual canyon carving, like so many track rats, set the stage for a serious foray into track days. Running the sinuous mountain roads near Oakland and sliding Tahoe powder in his 2009 WRX was enough to whet his whistle for a few years, but when the prices on his dream car entered the realm of attainability, he decided to take the leap and turn his cost-effective pastime into a full-time hobby. An Adobe-sponsored corporate track day at Sonoma made Lief absolutely certain he wanted to push a more powerful car in an environment where he could safely push the car’s limits.

His dream car was not a hardcore thoroughbred, nor was it super light, but Lief was convinced it was the ideal platform for an aspirational build. His 2009 GT-R had all the potential for quad-digit horsepower and a place at the top of any timesheet. He had grand dreams about turning this tech-heavy heavyweight into a standout.

Plus, much to Lief’s liking, the car was practical. “I could throw a set of race slicks in the back, drive it to the track, swap ‘em out, and then when I was done, drive home. It wasn’t just about the power or the grip—it was an everyday supercar I could live with.”

His aim of regularly competing in Speed SF Challenge and other time trials encouraged him to find that elusive happy medium: sharpening it while still retaining some streetability. For some time, Lief drove the car to and from the track without any problems other than a frightening tire bill. However, as the car kept getting faster, Lief eventually turned a corner and decided to change the car’s designation permanently.

Out of the box, the wet weight of the GT-R is over 3,900 pounds, so serious stripping was in order.

About three years into regularly tracking the car, he called on Tony Colicchio at TC Designs to weld in a full cage. “The night before sending it to TC, I got a little carried away. I stripped everything out of the car I could, and before I dropped it off the next morning, I realized that I was going to build this car solely for time attack.”

After a few more weight savers like polycarbonate windows and a titanium exhaust, he moved onto the fixes that a heavy, complicated sports car needs if it’s going to last longer runs. A Litchfield transmission cooler, a CSF radiator, and all the Trackspec venting to keep the VR38 and the braking system reasonably cool.

The next order of business was bringing the Nissan’s nose in-line. “Understeer out of the box is awful…it’s akin to a bulldozer plowing than a precision race vehicle,” Lief admits. “I wanted the car to follow my steering inputs, and so we went to town on the front end. Now, there’s a Nismo LSD up front, a set of widebody fenders, and custom Brypar knuckles that allow me to run a set of Advan GT 18x12” wheels and Yokohama A005 slicks set into perfect alignment with SPL arms. Paired with a large front splitter fabricated by Trackspec, the car can rotate in slow corners and still tuck the nose in for fast corners, too.

An Overtake rear LSD was added to reduce drivetrain temperatures, and it also improves rotation. Even after considerable weight savings measures, the heavy GT-R stopping distances aren’t the shortest, so Lief fitted 4-piston Brembo race calipers with endurance pads. The difference in pedal feel from the OEM Brembo 6-piston to the race-oriented 4-pistons is night and day. They also offer a much lower profile for improved cooling, and the 32mm pads that will run five track days without any noticeable fade

The car was pointy and precise, but the bump in front grip came at a cost. “I got a little carried away at Laguna one day and spun it through Turn 6 at about 90 miles an hour. The wall was about five feet away when I came to a stop.”

The need for a complementary rear end pushed Lief to buy the biggest chassis-mounted wing he could fit: a 78” APR GT-1000. The resulting balance put the car into a new performance window that helped him set a few of his best times. He’d found a consistent, capable car that wouldn’t bite his head off if he made a mistake. Even better: the motor wouldn’t overheat in the course of a fifteen-minute session. Its oil circulation was not as strong, however.

“In my opinion, Speed SF Challenge offers enthusiasts a unique balance of risk and fun, while ensuring competition among a range of participants of varying budgets. The feeling of the grid is racey and competitive, but you’re not overly concerned with swapping paint.”

After an auspicious Sonoma session in which Lief set a 1:42.4, the motor let go. “I hadn’t been checking the oil frequently enough, and I believe I starved it in Turn 11 and threw a rod. The motor had seen around 30,000 miles, 20,000 of which were track miles. Every dog has its day.”

The cost of consumables with this heavyweight had been hard enough to swallow, but an engine rebuild gave him a reason to panic. With the price of a VR38 long block pushing $25,000, he had to get creative with his financing and find a shop that could pencil him in without emptying his bank account.

The cost was so extravagant that cross-country shipping the entire car was a worthwhile endeavor. Check6ix offered him the most appealing deal of the notable GT-R shops he’d contacted, and that meant sticking it on a hauler en route to Georgia.

Eighteen months later, he flew out to Atlanta to pick up his rebuilt baby. Cicio Performance had fitted the head with upgraded valve springs and cams, then filled the block with forged Manley rods and pistons. The cam change had bumped torque to a respectable 630 lb-ft, and that’s with the factory turbochargers still in place. Retaining the stock snails is not something that someone who’s just fitted a MoTec C127 ECU to their motor usually does, but Lief felt they’d do the trick. “I just wanted it to run reliably and respond to my footwork. I also wanted to keep the car right at the limit for running in NASA’s TT1 class.”

Coincidentally, the completion of his new motor lined up with Global Time Attack at Road Atlanta, so he flew out East with his helmet and suit packed, and met with the Check6ix team in the pits.

The car, sitting on a set of old Yokohama A005s, was frighteningly fast out of the box. Lief clicked off a 1:29 in practice, and after a few setup changes and some familiarization with the course, he managed a 1:26.6. This was good enough for a 4th place in the Unlimited class, which was filled with builds boasting another 300 horsepower. Though he was outgunned from the get-go, Lief was forced to compete in Unlimited as the rules for the lesser classes require a dashboard of some sort, which was absent in this car.

Back on the West Coast, Lief’s been racking up the sort of lap times that make everyone purse their lips and nod. Best of all, he’s been doing it without chasing quad-digit power. Currently, with just 600 horsepower and a wet weight of 3,400 pounds, he’s been able to put a 1:27.8 in at Laguna Seca. He’s spent a pretty penny to get this far, and he’s debating whether it’s worthwhile spending more.

“I’m at a fork in the road where all I see are diminishing returns, and at some point I want to start another project. I keep saying that it’s done, but part of me thinks I’ll need to work a little harder to perfect it,” he says. “I still want to get some weight out of the car—I can try tubed subframes and some more carbon panels; weight reduction has made the car so lively. It’s been an amazing journey—both building the car and investing countless hours on the simulator. We’ve both come a long way.”

After going sub-30 at Laguna, Lief has his crosshairs on getting under the 1:40 mark at Sonoma and under 1:50 at Thunderhill East, “There’s something about those ten-second incremental milestones that makes every one of us track junkies completely elated. I hope there’ll be a few more on the horizon.”

He might not’ve gone for bigger turbos, but it’s clear Lief is a guy who likes big numbers—and he went about getting them in the smartest way possible.








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Tommy Parry Tommy Parry

Justin's IS F: Rekindling An Old Romance

After a seventeen-year sabbatical from racing, Justin Munoz picked up a capable sedan that, over the last few years, has helped him fall back in love with motorsport.

Photo: Nolan Muna

Justin had his first shot at track days back in 2003, but that one afternoon at Thunderhill East in his 7th generation Celica GTS would be the last time he’d set a tire on track for nearly twenty years. Still, he managed to set a 2:15 at that event, so at least he had demonstrated his chops in the process.

Then life intervened. Marriage, children, divorce, and other financial priorities forced him to put his racing aspirations on the back burner for the better part of two decades. During his seventeen-year sabbatical, he dabbled with motorcycles and a third-generation Mazda RX-7, but never took either to the track.

Once the kids grew up, Justin saw an opportunity to return to the track. Then the pandemic hit, and to make matters worse, he lost his job. For a bitter moment, his chance to return to tracking seemed to fall just out of reach. Rather than fall prey to despair, Justin began consulting, then went into business with a close friend. Fortunately, that career move proved lucrative.

So much so that he could suddenly consider several supercars. “I debated between an NSX and an R8,” he said, “until my fiance made a suggestion. She said, ‘Instead of dumping a lot of money into one of those, why not buy a cheaper car you can modify your own way?/”

Cogent question. Justin started considering the criteria he was looking for in a mid-tier car. Reliable, large displacement, naturally aspirated, and as he thought longer and longer, he grew to like the idea of a four-door. He cast his mind back to a stoplight-to-stoplight race during the time he was driving his RX-7. “I remember an IS F totally smoked me,” he recalled. Seemed like the big Lexus sedan fit the bill.

And so he started scouring the more reputable classifieds. There wasn’t much he’d find that seemed like a suitable candidate. Ironically, it was only after four fruitless months that he capitulated and started scrolling through the Craigslist pages, where he only spent a few minutes before finding the perfect car. Better yet, it was parked just a little down the street from Justin’s house.

With only 77,000 on the clock, one owner, and complete service records tucked neatly away in a binder, this immaculate machine held a lot of promise. However, Justin being a prudent guy, he had his friend at Magnussen’s Toyota inspect the car to be certain it was the gem it appeared to be. After performing the PPI, his friend told him, “If you don’t buy this car, I will.”

Justin didn’t give him the chance. With his new acquisition sitting pretty in his garage, Justin began researching what a track-ready IS F had over his bone stock example. At the very least, any set of performance shocks and brake pads would keep it from falling on its face. However, Justin being well connected in the industry, he splurged for the fancier stuff: Carbotech XP10 pads, Michelin PS4S, and HKS Hipermax coilovers.

His return to the track—Buttonwillow this time—after seventeen years away was comically carefree. “It’s just like riding a bike,'' he told himself. He set out brimming with pride and excitement, but he quickly realized just how tire technology had come in the last two decades—and how rusty he truly was. After dropping two wheels at the exit of Bus Stop, he reigned in some of his exuberance and started to drive much more sensibly. “It was eye opening and humbling, to say the least.”

A trip to Thunderhill West a few weeks later was not only humbling, but dispiriting. The IS F’s inability, so he thought, to handle the constant barrage of corners put him in a foul mood. In fact, he was considering abandoning the platform that day at a somber lunch.

Post-meal, he found a little more encouragement from the car and managed not only to stick in a respectable 1:33, but he executed a spectacular pass around the outside of Joe McGuigan, who was then riding shotgun in a student’s car.

Two months later, he had his 22/20k setup that convinced him to give the platform a fighting chance.

Joe, another proponent of the Lexus sport sedans, could see by the IS F’s bucking-bronco body language that the damping was insufficient for the workout Justin was putting it through. Following Joe’s recommendation, Justin reached out to Shaftworks and ordered a custom set of coilovers to suit the heavyweight.

“That’s when it spiraled,” he laughed. Along with those new coils, he picked up Ultra Racing chassis braces, FIGS arms and bushings, Sikky swaybars, and a few other items that stiffened the chassis to the point he could drive the car as aggressively and accurately as he hoped. Of course, the newfound cornering forces required some additional core support for the driver, so he threw in a Recaro Profi XL.

It didn’t take long before he had to fortify the platform again. With all the extra energy he was putting into his wheeling, the tires and brakes were struggling to keep up. “I tried RT660s, but they got greasy too fast. I spoke with a Camaro owner who recommended Goodyear Supercar 3s and figured I’d try ‘em.”

Now that the car’s sorted and sweet, he has to be careful not to overdrive the car. “It will do what you want, provided you keep it within a certain window,” he added.

Wrapped around a new set of Momo Catania wheels measuring 18x10”, he was thrilled with the newfound consistency these new tires provided him. “Once they’re warm, they remain at the same temperature for the rest of the day—it’s a little like cooking with a cast iron skillet.”

Naturally, the added grip strained the binders to the point of developing stress fractures and mirroring some. In their place, Justin added a set of GS F calipers, bigger OEM Brembo rotors, and a set of Carbotech XP12s to bring everything up to a dependable par.

Swept away by the rate of development and the improvements he was enjoying, Justin asked himself, ‘What could it hurt to have a little more power?’

With a custom tune from Tuned by LOI, full bolt-ons, and a tankful of E30, the 5.0-liter made a very healthy 438 horsepower and 401 lb-ft at the rear wheels. To make the most of this bump in grunt, he added a Sikky carbon driveshaft and an OS Giken 1.5-way LSD.

With the level of funding he’s put into this machine, Justin decided to make this former heavyweight into a svelte track-only sedan—and is leaving it to the pros to help realize its potential. Additional cooling, a welded cage, and some lightweight body panels are just a few of the additions Race Factory will be making this summer.

If all goes to plan, he’ll be trailering this beauty to several shakedowns next year before entering in Global Time Attack, where he hopes to make a splash in the Street Class. With the good luck he’s had thus far and the wise McGuigan to guide him on his way, he has a shot at making some waves with this (perhaps former) heavyweight.

“I just want to thank my family, friends, and the car community for being so supportive. Without all three, my return to motorsports wouldn't have been anywhere as fulfilling as it has been.”

Photo: Nolan Muna








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