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1992 Honda Prelude Si - Natural Progression

Proof that the waiting game works

Aaron Bonk
Mar 28, 2013
Photographer: Henry Z. DeKuyper
Htup 1303 01+1992 honda prelude si+front passenger Photo 1/9   |   1992 Honda Prelude Si - Natural Progression

Michael Wylie isnt 16 years old. His journey breaking, fixing, and modifying cars began during a presidential administration you think exists only on Wikipedia. He spun his first intake valve through a Sioux valve-grinding machine before your parents met. He was only 10.

Fitting to the period and almost predictably, Wylie's initial automotive fascinations favored '50s-, '60s-, and '70s-era muscle cars. "[That period] blew me away. You could go to a dealership and order a big-block Chevy, Olds, Pontiac, or Buick with tri-power or dual-quad [carburetors], a four-speed trans with a floor shifter, and a 4:11 Posi-Traction diff," Wylie recalls. The experience wasn't entirely unlike those that Type R owners would be privy to themselves decades later. Except for the big-cubic-inch engines. And the carburetors. And the RWD configurations. Despite all of this, though, by the mid-1980s, Wylie had found himself smitten with import-branded makes, which culminated into his owning multiple turbocharged Toyotas, Mitsubishis, and, later, Hondas. But you're not here to read about Wylie's '93 Tercel.

Htup 1303 02+1992 honda prelude si+boost gauge Photo 2/9   |   1992 Honda Prelude Si - Natural Progression

Wylie's post-formative automotive years were spent diligently working on an entirely different kind of import, specifically, antique British, German, French, and Italian cars. Cars like a '50s-era Mercedes-Benz 300SL Gullwing Coupe. Cars like a late-'40s Jaguar XK-120. Cars like an early '80s, V-8 turbocharged Ferrari 208T. Cars that are the last thing in the world that somebody who spent nine years searching for a fourth-generation Honda Prelude would ever be expected to be so knowledgeable of. But expecting Wylie, who's a high school automotive tech instructor by trade and whose students lent hands in his Prelude's revival, to have cut his teeth on anything less would go against the man's devices.

Wylie's search for the perfect '92 to '96 specimen began nearly 11 years ago. The criteria was predictable albeit culpable to the nine-year hunt: no body damage, perfect paint, no crash history, low miles. Wylie crossed paths with his '92 Si in California's desert with only 45,000 miles registered on its odometer and an otherwise clean bill of health. And according to Wylie, the obligatory "little old lady" was indeed who'd be taking his money.

Confident he'd one day find his quintessential, mid-'90s Honda sports coupe, Wylie began collecting upgrades long before securing the car's title, which is what contributed to the Prelude's relatively short two-year buildup. The engine, of which its core is the Si's non-VTEC cylinder head and 2.3L short-block, was completed only five years into Wylie's Prelude quest--four years prior to having a car to stuff it in. Although a VTEC top-end swap would've been a likely approach to more power, instead, and not unlike the carbureted-era iron Wylie's accustomed to, the H23A's original, non-valve-manipulating cylinder head was put to work, bettered only by a pair of Crower cams, Racetech valvetrain, and a thorough port job. Underneath, JE pistons and Pauter rods ensure all holds together once boost is applied by means of the Master Power T-70 turbocharger. From the medium-frame turbo, a LoveFab Sidewinder exhaust manifold mates to the cylinder head in equal-length fashion. A TiAL blow-off valve and wastegate, along with fuel components from RC Engineering and Aeromotive, make up the brunt of the forced induction system. Calibration is handled with Hondata's S300 system, and torque is applied through a JUN flywheel and SPEC clutch combination. You'd not be mistaken to assume that, like the mid-'20s Boattail Bentley he'd once worked on, Wylie's Prelude follows similar suit, all but shunning forum monkeys and instead reading from its own script.

That an auto shop instructor would use his own lab to modify his own sled isn't surprising. That he'd do so with the help of his students just might be. Hear Wylie's words and you'll understand that his Prelude wouldn't be were it not for his students, though. And perhaps that's exactly how the former dealership-technician-turned-auto-shop-teacher wanted it. "I built my car at the school," Wylie says, who took the job some 12 years ago after suffering a back injury as a full-time technician. "Except for the machine work, all of the work was done at our school. Some of my advanced students worked on the car with me so that they could get the experience. Today, most of them are modding their own cars. It's really cool to see them creating and doing work on their own cars."

Htup 1303 05+1992 honda prelude si+NSX caliper Photo 6/9   |   1992 Honda Prelude Si - Natural Progression

Come winter, Wylie's Prelude hibernates from the Illinois cold, in part to ensure it retains its little-old-lady condition and, in part, because his turbocharged '87 Accord has been delegated day-to-day duties. To be sure, Wylie's the first to admit that, if the weather's not cooperating, "She'll be a wintertime garage queen."

"The whole tuner thing for me is a natural progression," Wylie says, recounting his experiences with American muscle cars, collectable British road cars, and later Japanese sport compacts--a natural progression that concluded in a very good place.

Bolts & Washers

Propulsion
H23A1 engine
Crower Stage 2 forced induction cams
Crower dual valvesprings
Racetech titanium retainers
Ported and polished cylinder head
Racetech stainless steel valves
Bronze valve guides
Viton valve stem seals
10.0:1 JE pistons
Total Seal piston rings
Pauter X-Beam connecting rods
Micro-polished, cryo-treated crankshaft
H22A oil pump
Moroso oil pan
Custom and Speed1 engine mounts
Master Power T-70 turbocharger
LoveFab Sidewinder exhaust manifold
Custom stainless steel downpipe
Custom 3-inch exhaust system
Flowmaster muffler
TiAL F38 wastegate
TiAL BV 50mm blow-off valve
Custom aluminum intercooler piping
Custom front-mount intercooler
Custom air filter
BlackTrax intake manifold plenum spacer
Overbored OEM throttle body
Hondata S300 engine management
Toyota Supra Turbo fuel pump
OBX fuel filter
Overbored OEM fuel rail
RC Engineering 750cc/min. fuel injectors
Aeromotive fuel pressure regulator
Earl's AN fuel fittings and lines
Pulstar spark plugs
OEM Honda ignition coils
Mishimoto aluminum radiator
Custom stainless steel and silicone radiator hoses
Coolingmist water/methanol injection system
Custom short shifter
SPEC Stage 3 clutch
JUN flywheel
Quaife limited-slip differential
Suspension
Ksport Kontrol Pro coilovers
Tanabe chromoly front antisway bar
Tanabe chromoly rear antisway bar
Energy Suspension bushings
SPC front alignment kit
Megan Racing front shock tower brace
Megan Racing rear shock tower brace

Htup 1303 08+1992 honda prelude si+H23A1 engine Photo 7/9   |   The original H23 was built and boosted by Wylie and his auto shop class—a job well done.

Resistance
'97'01 Prelude five-lug conversion
StopTech rotors, front
DBA rotors, rear
NSX calipers
NSX pads
Castrol fluid
Goodrich steel braided lines

Htup 1303 09+1992 honda prelude si+a pillar gauges Photo 8/9   |   1992 Honda Prelude Si - Natural Progression

Wheels & Tires
18x7.5 Enkei STR5 +42 offset
225/40-18 Nitto Invo

Exterior
Original paint
Custom taillight paint

Interior
Custom flat-panel entertainment system
MOMO steering wheel
NRG Innovations steering wheel hub adapter
NRG Innovations quick-release hub
MOMO shift knob
MOMO shift boot
'95 Prelude center console
'95 Prelude subwoofer
HKS turbo timer

Props
My darling wife Karen
My exceptional students Lupe, Shaun, Genaro, Edgar, Stephen
My good friend Donald

Owner Specs

Daily Grind
High school auto tech teacher

Htup 1303 03+1992 honda prelude si+custom taillight paint Photo 9/9   |   1992 Honda Prelude Si - Natural Progression

Favorite Site
hondatuningmagazine.com

Screen Name
Coyote9

Building Hondas
Since 1988

Dream Car
NSX

Inspiration For This Build
It was time for a new project.

Future Builds
More mods to the 'lude

H23A Accolades

As far as attention goes, Honda's VTEC engines get most of it. And for good reason. For the most part, VTEC engines can brag about a whole lot more than the simple fact that their valves can be electronically manipulated on the fly. Most also feature piston-cooling oil squirters, higher-compression pistons, superior rod-to-stroke ratios, more aggressive camshafts, and more efficient cylinder heads when compared to their non-VTEC counterparts. Unlike any other non-VTEC engine, though, Honda's H23A shares more similarities with its H22A sibling than not. To be sure, there is no easier VTEC conversion than that which is based off of the H23A short-block. For decades, record-setting racers have concurred on all points as the H23A bottom end has gone on to secure import drag racing records time and again.

Sources

SPEC Clutch
Bessemer, AL 35022
800-828-4379
http://www.specclutch.com
KSport USA
Gilbert, AZ 85233
http://www.ksportusa.com
Tanabe
Torrance, CA 90501
310-783-0200
http://www.tanabe-usa.com
Blacktrax Performance
Milipitas, CA 95035
408-946-2900
http://www.blacktrax.net
By Aaron Bonk
405 Articles

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