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 |   |  1992 Eagle Talon TSi AWD - World's Quickest Diamond Star
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1992 Eagle Talon TSi AWD - World's Quickest Diamond Star

Extreme Motorsports Talon

Evan Griffey
Apr 1, 2000
0004_turp_01_z+1992_eagle_talon_tsi_awd+front_right Photo 1/13   |   1992 Eagle Talon TSi AWD - World's Quickest Diamond Star

9.571 @ 148.04 mph
The Honda versus Mitsubishi rivalry should heat up in 2000 as each camp has its own star list and fleet of 9-second sprinters. Sean Glazar of Fulton, Maryland is currently the fastest Quick-class Diamond Star with a 9.57-second pass under his belt in preparation for the IDRC/NHRA CSK International Finals Presented by Bosch race in Pomona, Calif. The car blasted a 9.70 right out of the box and perched itself atop the Quick XVI qualifying ladder.

Sean and his dad, Terry, own and run Extreme Motorsports, one of the premier Diamond Star tuning shops in the country. Brent Rau's 9.74-second Diamond Star (January 2000) is also campaigned out of the Extreme stable. A graduate of the University of Maryland with a degree in economics, Sean uses a calculator as well as a wrench in his daily duties. We asked Sean what was most responsible for the quick improvement of the two cars in 1999. "We made a lot of progress this year," said Sean. "We went to Haltech fuel management and with our Dynojet chassis dyno, I was able to do all my tuning before the race." The dyno was installed in March and it wasn't too soon thereafter that the Extreme team started its tear.

Sean told us he has his work cut out for him during the off season. He has numerous "driveline issues" to resolve. "When running 10s, the driveline was not much of an issue; the car held together fairly well. Since the car has planted itself in the 9s a new set of problems have surfaced-and I expected them." Sean says he's tried all kinds of stress-relief tricks but the transfer case output shaft just can't take it from a metallurgical standpoint. He hopes to find an alternative material to construct a shaft from and fabricate other components that will be capable of absorbing the abuse.

While there are 750-plus angry horses pulling on the reins, there is plenty of abuse to go around. Sean handles all the engine building, transmission tweaking and tuning of the car. His 4G63 is stuffed with 8.5:1 compression Ross pistons designed to Extreme Motorsports specs, a stock crank and Crower connecting rods. Sean gave the head a mild porting, added heavy-duty valve guides and performed a competition valve job. A pair of Web Cam bumpsticks orchestrate valvetrain events while Unorthodox Racing adjustable cam gears give Sean the fine tuning ability needed to extract maximum power and ensure the power peaks at the correct place in the powerband. ARP head studs are assigned the monumental task of keeping the head secured to the block at 30psi.

0004_turp_09_z+1992_eagle_talon_tsi_awd+tial_wastegate Photo 5/13   |   A Tial wastegate earns its keep controlling the pressure generated by the free-wheeling turbo.

Pressurization is generated by an Extreme Motorsports-spec Garrett hybrid turbo charger. The turbo sports secret spec'd housing A/Rs and wheel trims and is a key factor in the Diamond Star's speed. The intake charge is chilled by a front-mounted air-to-air intercooler prior to entering the turbo system's 3-inch intercooler ducting. When the car is really hooked up a Nitrous Express single-nozzle wet manifold nitrous system is squeezed into play from the line to the traps. The system is configured to add 100 horsepower to the party-that'll get it done.

0004_turp_10_z+1992_eagle_talon_tsi_awd+garrett_turbo Photo 6/13   |   A Mike Hansen manifold is home to a Garrett turbo configured to Extreme Morotsports' secret specs. The turbo system consists of a Tial wastegate, GReddy blow-off valve and an Extreme Motorsports XBC boost controller. Max pressure is 30 psi.

On the fuel enrichment side we find an interesting mix of components. The fuel system utilizes two high-flow Bosch pumps that feed eight 550cc injectors which are driven by a Haltech E6S-8 engine management system. An Essex regulator controls the flow of race gas to a custom Extreme Motorsports fuel rail. Air is introduced to the combustion chamber by four individual throttle bodies, spark is zapped in by a single-coil-per-cylinder Extreme Motorsports ignition system where Magnecor wires and NGK plugs light off the mixture of C-16 and boost. Sean has gotten a lot of mileage out of his motor but still has a few tweaks in store for the powerplant during the cold Maryland winter.

Getting the power to the pavement is key but an all-wheel-drive car poses some unique challenges. If you do too good of a job, you'll break axles, transfer cases, transmissions etc. Koni coilovers that utilize Eibach ERS springs dictate the transfer of weight while a factory front sway bar and Suspension Techniques rear sway bar increase stability. The Talon claws at the track via M&H slicks. Sean runs 24.5x8.5x15 gumballs on Bogart Racing Dragonfly Star wheels. After tripping the lights in a tick under 150 mph the Diamond Star is brought to a halt with the stock braking system which has been enhanced with Power Stop rotors, Axxis Metal Master pads and stainless-steel brake lines (and a parachute if necessary).

0004_turp_11_z+1992_eagle_talon_tsi_awd+550cc_injectors Photo 7/13   |   The fuel system utilizes two high-flow Bosch pumps that feed eight 550cc injectors which are driven by a Haltech E6S-8 engine management system. An Essex regulator controls the flow of C-16 to a custom Extreme Motorsports fuel rail.

The interior is all race with a 10-point NHRA-certified roll cage from Autofab Race Cars providing protection and adding to the car's rigidity. Piloting the 9-second screamer is an all Sparco affair-Sean is strapped into a Sparco racing bucket seat and guides the Talon down the track via a trick Sparco steering wheel. Instrumentation is handled by Auto Meter Phantom Series gauges while a Phoenix Fire Suppression System is on call to extinguish any flames should things go awry.

As the car's performance has progressed, so has its looks. Speedesign has concocted the distinctive scheme on Sean's Talon, giving the racer a single-digit aura to back up its single-digit timeslips. As mentioned earlier, it's going to be a busy winter for the crew at Extreme Motorsports. Instead of hibernating during the cold months, Sean and company will be reworking driveline parts in an effort to excise the demons. We wish them the best of luck and hope see the Talon racing on a nationwide basis in 2000.

Vehicle {{{1992 Eagle Talon}}}
Best e.t. 9.{{{57}}} @ 148 mph
Engine 4G63 turbo four
Displacement 2.0 liters
Forced Induction Extreme Spec Garrett Hybrid
Intercooler Air-to-air
Nitrous Oxide Nitrous {{{Express}}} single nozzle {{{100}}} hp
Fuel System Bosch pumps (2),550cc injectors (8),custom fuel rail
Ignition System Single-coil-per-cylinder, Magnecor wires
Air Intake Individual throttle bodies (4)
Exhaust Mike Hansen header, Thermal Research exhaust
Boost Control Extreme Motorsports XBC
Engine Management Haltech E6S-8
Transmission stock, Clutch Masters Stage 6 clutch, JUN flywheel
Weight 2755 lbs.
Racer Sean Glazar
Age 26
Hometown Fulton, Maryland
Heroes "My dad Terry. He has been my Number One fan."
Zeroes People who quote false horsepower figures."People who run with inadequate safety equipment. I am talking about 11-second cars with no cage and drivers with no helmets."
Accomplishments World's Quickest Quick Class Car
Plans Go quicker and faster in 2000


Auto Meter
Sycamore, IL 60178
Eibach Springs
Corona, CA 92879
Unorthodox Racing
Copiague, NY 11726
Nitrous Express
Wichita Falls, TX 76310
Farmington Hills, MI 48335
Ross Racing Pistons
El Segundo, CA 90245
+61 2 9729 0999
Suspension Techniques
Chula Vista, CA 91911-5899
Bogart Racing Wheels
Phoenix, AZ 85043
Speedesign Custom Graphics
Timonium, MD 21093
M&H Tire Company
Gardner, MA 01440
Extreme Motorsports
Jessup, MD 20794
Web Cam Racing Cams
Riverside, CA 92507
By Evan Griffey
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