[On the move: Guy Moyers’s...
[On the move: Guy Moyers’s ’88 Corvette, an 11-second car in the quarter-mile (on a 100hp shot of nitrous).
So often, Corvette owners invest untold hours and dollars in their cars, with the resulting car only generating mileage (footage?) while on a show field, or being driven on or off a trailer.
In fact, one of the last times that Guy Moyers’s ’88 Corvette was on a trailer was when it was shipped from Bowling Green Assembly to its original selling dealer.
And it had covered plenty of distance by the time he saw it for the first time, back in the mid-’90s. “My wife and I were at a funeral in Virginia, and we saw it for sale on a corner lot,” Moyers says. “We did a quick U-turn, and we saw that it was a daily driver that had a lot of miles on it.” In fact, the 74,000-plus miles on the car then were all highway miles.
Before long, that ’88 was in Moyers’ Exton, Pennsylvania, garage and workshop. Before any modifications or upgrades went on it, Moyers went through it. “I went all over the car to make sure that it was mechanically sound,” he recalls. “I did any repairs myself.”
Over the next year and a half, Moyers went over the ’88 from one end to the other, detailing and cleaning it. As he puts it, “It took me three months just to clean the engine, because it was a driver. I got everything down to where I knew what I had, and then I started…tweaking it into the shape it is now.”
That meant starting with the ’88’s body, which gained a Greenwood ground-effects kit that fit Moyers’ preference for C4 style and function. He then turned his attention to the suspension. “I put Bilstein shocks, heavy-duty sway bars, and higher-rate springs on, and polyurethane bushings from front to back,” he says.
The Greenwood ground-effects...
The Greenwood ground-effects kit was the first of many mods Moyers added to his C4.
Two years ago, he completely disassembled the rearend and rear suspension. “[I rebuilt] everything from the back of the car all the way up to the transmission,” he says. Next, he installed a Dana 44 rear with 3.73 gears and had the driveshaft re-balanced.
Note that except for the driveshaft work, and the machining and reassembly of the short-block, Moyers did it all himself. That’s also how he upgraded the C4’s 350-inch L98 small-block and 700R4 overdrive automatic—all work done in his shop, except for machine-shop services.
When it came time to get into the powertrain, he’d sought out plenty of advice before he turned a wrench on it. “I planned the engine project for over a year before I actually started doing it,” Moyers says of his research, which led him to TPIS in Minnesota. “They gave me advice on how to keep everything compatible, so it works as a unit. The end result was an engine that exceeded my expectations.”
Except for machine-shop work,...
Except for machine-shop work, Moyers did all the work on the L98 himself. The D-Port heads, Mini Ram intake, and big-bore throttle body are from TPIS, while Nitrous Oxide Systems supplied the nitrous kit.
More specifically, that result was a Mini-Rammed 355 that puts out 483 rear-wheel horsepower (on a 100-horse shot of nitrous oxide), and pushes the C4 through the quarter- mile in the mid-to-high 11-second range. “If I could hook up better, it would be in the mid-to-low 11s,” Moyers adds.
On the street, and on the twisty roads in and around the Delaware Valley, Moyers’ C4 is no less strong a runner. “The first time I tested it with the nitrous installed, my wife was scared to death of it—she thought it was going to explode!” Moyers says. “I opened it up on the [Pennsylvania] Turnpike, and she grabbed my leg and started screaming. I said, ‘I can tune out the screaming; just don’t grab me—that’s dangerous!’”
Since John Machaqueiro shot these pictures of the ’88, Moyers has updated it again, as he does each year when he has it off the road from October to April. “I changed the dash, and I’ve now got a complete Auto Meter analog gauge set in it. It’s gorgeous, with the white Phantom gauges.” The car has also thrown off some trouble codes, so he’s having TPIS reprogram his C4’s PROM to eliminate that problem.
Upgrades out back include...
Upgrades out back include a Dana 44 differential, VB&P suspension hardware, and a Borla exhaust.
Planning a C4 project of your own? For a lot of Corvette enthusiasts nowadays, that’s the easiest (and most affordable) way to tailor a Vette to their tastes. If that’s what you’re looking to do, Moyers has this advice:
Moyers also made one mod that’s really cool. “I moved the transmission cooler from the front of the car all the way to the back,” he says. “I’ve now got a big B&M cooler on there with a fan on it.” That change now lets his C4’s 700R4 run 15 degrees cooler, while the engine runs 10 degrees cooler, too.
I would suggest that you speak to as many credible sources as you can,” he says. “Openly discuss with them what your vision is for the finished product, and then bring a very big checkbook—unless you’re prepared to do it all yourself.
“There are so many people that want to give you advice, but you really have to be able to confirm their credibility. You do that by asking around.”
||Guy Moyers; Exton, PA
||L98 cast-iron, bored 0.030-inch and internally balanced
||100hp “wet” nitrous-oxide system
||TPIS-ported “D-Port” heads
||TPIS “ZZX” hydraulic roller (0.597-in lift, 241-deg duration, 112-deg LSA)
||Comp Cams 1.6 Magnum roller
||TPIS Mini Ram with 58mm throttle body
||Melling high-volume pump, 7-qt pan with windage tray and scraper bar
||MSD 6AL electronic with HVC-II coil
||TPIS long-tube headers, 3-in pipes, Borla “Stinger” mufflers
||Modified 700R4 automatic with external cooler and 3,200-rpm TCI torque converter
||Stock, balanced with solid U-joints
||Vette Brakes & Products heavy-duty front and rear springs, Bilstein shocks
||Modified Dana 44 with 3.73:1 gears
||Baer cross-drilled/slotted rotors (13-in front, 12-in rear), ’96 Grand Sport calipers
||’96 Grand Sport aluminum; 17x9.5 (front), 17x11 (rear)
||BFGoodrich Comp T/A 275/40R17 (front), BFG g-Force T/A Drag Radial 315/35R17 (rear)
|Miles Driven Annually
The scooped hood vents heat...
The scooped hood vents heat from the 483rwhp (on nitrous) small-block.
Now you see ’em: Since this...
Now you see ’em: Since this picture was taken, an Auto Meter analog gauge cluster has replaced the OEM digital dash gauges.
Nitrous flows from this bottle...
Nitrous flows from this bottle mounted beneath the ’88’s hatch.