Thomas' Corvette: In Good Company

Finishing out his senior year of high school, Thomas DiGioacchino listened to a friend’s suggestion and scrounged the money together for his first track day. Crap tires, decent weather, and a near-stock Mustang GT were all he needed to find that thing that’s been steering his life for the last five years.

Thomas decided to pursue the mechanical side of things and enrolled in Ranken Technical College’s High Performance Technology course with a focus on Chevrolet LS engine design.

That emphasis allowed Thomas to build a motor for a car he hadn’t yet bought. It began with an iron-block LQ motor and LS1 heads, and as the LQ block only displaced 5.3 liters, he bored and honed it out to 5.7 liters to fit the LS1 head. With forged pistons and rods, oil pan baffles, and the other pieces that made it a 500-horsepower workhorse, he unknowingly set the tone for the rest of this build.

The car itself came next. During his final year at Ranken, he found himself a base 2002 Corvette within his price range and tucked it away in his side yard until graduation, when he loaded up his truck with his furniture, his motor, and began his drive from Missouri to his hometown.

Back in San Mateo, he reached out to his then-limited network for car parts and, with some luck, gainful employment as well. As he’d relied on Elite Performance to direct him towards a few bolt-ons for his Mustang, they were the natural resource to consult. One day, while speaking to Elite’s Melody Cannizzaro about getting his Corvette aligned, she provided up with a job opportunity. He didn’t have to think twice.

Working with Elite gave him access to one longtime customer who happened to be offloading some go-fast bits from their recent Corvette build. Thomas was able to grab a set of Titan 7 T-S5 wheels for peanuts, and then came big brakes, bushings, and a bucket seat. Soon, the plans for keeping the Corvette tame and civilized went out the window.

Wisely, he went for safety equipment next, and decided that this car would only help him become a truly quick driver if it was reliable first and fast second. “I knew that seat time would be the priority if I was going to run with guys like Gary Yeung,” he said.

That said, it would be silly not to make use of the big motor sitting in his parent’s backyard. Soon, it found a new home in the Corvette’s engine bay, and Thomas took the half-built C5 to its first track day, where it ran without a hiccup. It ran well the second day, too, as well as the third. Clearly, he’d paid attention in class.

Aside from the minor repairs any twenty-year-old car needs, it was the epitome of dependable. His focus was on learning to drive the car better, but, to his credit, a C5 on stock suspension does leave a lot to be desired. It would lean excessively, and under trail braking, it had a habit of snap-oversteering.

After several months of saving, Thomas bought a used set of JRZ two-ways. While he was at it, he pulled and refreshed the entire drivetrain, then upgraded the springs and clutch packs in the OE LSD. Those modifications made the Corvette much more progressive at the limit, regardless of whatever cheap tires he happened to be running.

When he found the time to fine-tune the suspension, he increased the rake to increase rotation at corner entry. A square 295-35/18 setup was the cost-conscious tire option, and he stretched every set until the cords showed. Still, the car was mostly neutral with a hint of understeer in the faster stuff thanks in part to his APR GTC-300 wing.

As his confidence grew, he started to recognize that driving around on worn rubber was no longer the training tool it had been, so he sprung for a set of AR-1s and turned his first sub-two-minute lap at Buttonwillow 13CW. “I had to fight it the whole way around, but I got 1:58. A sloppy 1:58, but still,” he said.

Good tires helped, as did having a hare to chase. With Gary Wong driving his S2000 off into the distance, Thomas was able to see where he could push harder than he believed was possible. It’s a huge help having an experienced driver luring your outside your comfort zone.

Logging that first milestone lap gave him the confidence to try the Speed SF Challenge the next weekend at Thunderhill’s five-mile configuration. He did his homework and studied several record laps, focusing on curb usage. With Gary Yeung giving him some basic feedback the day of, Thomas saw his lap times fall by as much as four seconds. In the end, he was able to clinch third place in S2 — just half a second behind Kevin Schweigert in his BMW M2.

That success turned Thomas into a sponge. His subsequent lapping days have been spent studying data and having the experienced drivers like Joe McGuigan critiquing his onboard videos. “Joe’s been a huge help; giving me pointers on which gears to use so I can put the power down more easily.” The result of this traction-conscious approach to driving is evident in the footage below:

He’s also benefited from picking a short list of prime parts. In fact, he’s never bent his Titan 7 wheels or broken any suspension parts, despite hammering curbs and dropping wheels regularly. Maybe it has something to do with emphasizing robustness with this build—a tip he picked up from his mentor, Gary Yeung.

‘I’ve learned a decade’s worth of motorsports knowledge in the last two years. Everyone’s been so supportive, and I owe my progress to all of them. They’ve pushed me to improve as a driver and a builder—especially Gary. Watching him work inspired me to raise my game, and I think it shows. My Corvette’s overbuilt, so I can push it all day. Like Mango, my Corvette is a workhorse that’s made it possible to attend almost every Speed SF event in the last two years. All I do now is change the fluids and try to find out where I can go faster.”

Parts

• JRZ motorsport coilover conversion

• Titan 7 T-S5 wheels 18x10.5”

• Trackspec hood vents

• Dewitts radiator

• Spal fans

• Improved Racing oil cooler

• Improved Racing oil pan baffles

• Prothane polyurethane bushings

• APR GTC-300 wing

• APR splitter

Rich Bonem's BRZ-Camaro Dilemma: Speed Costs Money

Years of construction work meant his hands weren’t what they used to be, but that only meant that Rich Bonem had to find a new outlet. That and a few objections from his loved ones was why he switched from lapping crotch rockets to time trials in Subaru BRZ which, even in stock trim, was already a fantastic driver’s car. Light, agile, and encouraging, his 2017 BRZ Performance Pack served him well that first year, during which he squeezed in twenty track days—and all he did to ensure the car ran well was add a Mishimoto oil cooler.

The modifications came the following year. With a set of Enkei RPF1s wrapped in 255-section Bridgestone RE-71s, the BRZ was surprisingly capable of near-factory footwork. To make the most of that improved stance, he used SPC’s rear control arms and their toe arms to dial in a track-specific alignment. With 3 and 2.5 degrees of negative camber front and rear, respectively, the car could be leaned comfortably, generate the needed mid-corner stick, and oversteer predictably—just what the underpowered BRZ needs for fast times.

Although power wasn’t its forte, the BRZ was able to be livened up some. Rich tried what he could to squeeze a little more from the FA20 with UEL headers, a JDL high-flow cat, an Invidia N2 exhaust, as well as an OpenFlash Tune. It wasn’t groundbreaking horsepower, but 180 horsepower at the wheels in a 2,700-pound car qualifies it as quick.

With a set of Verus brake ducts topping off the short list of mods, Rich had himself a competitive car he could take to 86 Challenge. “What’s really cool about the 86 Challenge is the fact you can take a completely stock car and compete. Every event has had a great turn out, and when you’re ready to add some more upgrades, there’s a group for you, no matter how modifed your car is,” Rich says.

This car and this competition provided Rich with the realization it sometimes takes eager track rats years to learn. “When you’re competitive in motorsports, seat time is the best upgrade. In just one year, I went from being a complete noob to being one of the fastest guys at the track, and this was due to regular lapping days and the way I gained confidence so quickly. Every lap you push a little harder, brake a little deeper, focus on more advanced techniques, and study the features on the track that are so hard to notice when you’re new and uncomfortable.”

Still, that challenge could only last so long. Eventually, he felt like he hit a wall. No matter what he tried, he couldn’t improve upon his personal bests.

Looking into the cost of getting more power from the temperamental FA20 seemed silly; a little research into Kevin Schweigert’s experience with his supercharged BRZ wasn’t encouraging; things started to break things once past the 350 horsepower-mark. For that reason, Rich decided to leave the underpowered lightweight behind and move onto a new platform.

In addition to brakes the size of medium pizzas and a motor over three times the size of the Subaru’s, the Camaro SS 1LE represented a new challenge to Rich. It was bigger and harder on consumables, but unlike the Subaru, it had a robustness and, crucially, a warranty which made tracking it relatively easy on his conscience.

Not surprisingly, Rich was staggered with the car. The braking performance was stunning—seeing a measured 1.3 G in the heavier braking zones was a big surprise considering the additional half-ton of weight. “I felt my soul leaving my body,” he reflected.

The interior offered plenty of space, the gearbox was sweet, and the general reliability was impressive, too. Therefore, the ease of transition was more than just calming—it was inspiring. “The Camaro really made me feel like a superhero,” he added.

True, some things needed improvement—he added an APR GT300 rear wing and some adjustable rear toe links, then dialed in a little more camber all around. Other than that, it was left stock, because it was more than he could fully exploit at the time of purchase.

If it had any flaws in its driving dynamics, it’s that it wasn’t’ not the chuckable thing that the BRZ was. Still, it compensated for the added size with real stability and, obviously, a lot more motor. He increased the front tire width to match the rear 305s, but in its current configuration, the 3,800-pound bruiser still lacks that urgency that he loved so much in his old car.

For Rich, the dependable, reassuring balance, great high-speed manners, and stress-free lapping were the outstanding traits—outstanding enough to forget about its few flaws.

Good manners and an extremely stable platform gave Rich the encouragement needed to push his expensive track toy.

Except one. That ease of tracking and the obvious challenge kept him from ever feeling stagnant or frustrated, but he couldn’t help noticing the damage done to his bank account. Between track day insurance, gas, tires, and brakes, Rich found he was spending nearly twice as much every weekend than he had with the Subaru. Speed and power were fun, but like Kevin Schweigert realized, they’re not everything.

Brake pads lasted only four lapping days, and the tires two—the massive weight wearing out the shoulders extremely quickly. Not surprisingly, he’d only managed half the number of track days in the Camaro over eighteen months than he had with the Subaru in one year.

For Rich, the Camaro is the simple solution that so many track guys are looking for. “It’s a tried-and-true platform that will work, but I find myself already feeling like I want more. I can make it faster, but to upgrade an already expensive car is just crazy. Now, I believe I’d rather start over with a stock BRZ and upgrade slowly to appreciate the differences each upgrade makes. Maybe a K24 engine swap in the future?”

This journey has taught him of all that which is really important in a track car, as well as the cost restrictions and practical limitations that the starry-eyed builder never really understands until they’ve sunk half their savings into a creation. To win requires practice, and to have fun requires a constant challenge and regular advancement towards that goal on the horizon. How does one balance that? That’s up to the driver and their tastes, finances, and abilities.

Matt Paige's C6 Z06: The Track Rat’s Idea of a Hybrid

Photo credit: APEX Staff Photographer @victorgiang

There’s something refreshing about watching the onboards Matt Paige posts all too infrequently to his YouTube page. It only takes a couple corners to see evidence of a well-sorted car in action. Soft turn-in, great traction, and a real sort of stability that gives him the reassurance to push hard are traits we can appreciate from the start of his lap linked below.

By addressing every performance-related department in more or less equal measure, the car has a wide array of strengths which make it a versatile machine most speed freaks can appreciate. It’s a car that’s civil enough for short drives on the street, despite being tuned and tweaked to drive full lapping sessions without worry.

The track-street mix doesn’t place much emphasis on comfort, but it does make sure the factory bodywork is retained while using the airflow over it more effectively. For instance, the rear brake ducts are repurposed to direct air towards the gearbox and differential.

The vented hood isn’t stock bodywork, but it does fit the whole scheme as it’s painted the same shade of yellow.

Up front, the LG Motorsports splitter removes the front airdam and, in conjunction with a vented hood, helps the hot air inside the engine bay evacuate. Downforce and cooling addressed in one fell swoop—all without disrupting the soft, curvaceous shape of the C6.

That two-birds-one-stone approach could be seen in the greater build objectives with this particular Corvette. First, Matt wanted to show what his company is capable of. Few cars really fill the dual-purposer role, but Laptimz Motorsports used all their knowhow and a considerable budget to make it a track guy’s idea of the ideal hybrid.

The second objective was to demonstrate the value of a track car that doesn’t prioritize outright speed. Even with the lap times it’s capable of, the build emphasis was on stress-free track work; the company aim is getting enthusiasts onto the track with minimal fretting and frustration.

For that reason, reliability came first. Matt strove to keep the temperatures low through a set of Setrab oil coolers and a G-Speed laydown radiator. To ensure steady lubrication at high lateral and longitudinal loads, he picked a dry sump system from Dailey Engineering. For a milder balance with a hint of push, he chose a staggered set of Apex VS-5RS wheels wrapped in wide rubber—315s up front and 345s in the rear.

That wide footprint easily harnesses the engine’s output, as this LS7 isn’t crazy-powerful by LS standards. With the help of American Heritage heads, a Katech Torquer cam, Katech valves, and a pretty mild exhaust, it makes 525 horsepower and 520 lb-ft of torque—more than enough shove for Sonoma and Thunderhill.

Unfortunately, the retention of the interior pieces and most all the factory bodywork makes this 3,000-pound middleweight a little heftier than most track cars of this caliber. Still, those lightweight wheels, SKF hubs, aluminum hubs, lighter AP Racing brakes, and LG Motorsports drop spindles trim some unsprung weight. It all contributes to a feeling of uninterrupted adhesion with the road beneath. After all, it’s not only about the total weight, but where it’s located.

Photo credit: Trevor Ryan

The result is a car that’s sure on its feet, urgent, stable, and somewhat progressive when it does break loose. Now, the use of a delicate right foot helps Matt stay out of trouble, but he has to tread carefully on cold tires—big 315s have a habit of letting go abruptly if they’re not brought up to temperature before getting abused.

A little Lexan, lightened footwork, and a carbon roof help this Corvette belie its weight.

Even when the car does slide, the fresher suspension and direct feeling through the wheel give Matt enough information to correct snaps and shimmies without breaking a sweat. Not even a slide through the middle of Sonoma’s Turn 10 seems daunting, as seen at 1:28 in the footage above. This surefootnedness helps Matt push hard without trepidation—and feel like a superhero in the process.

Without a doubt, we’d certainly have fuller fields if this is how all track toys were built.