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1989 'EVETTE'

This machine has been garaged and improved since the day she was made.  She has turned into a 20+ year project.  

Yes,  That's a 15 pound bottle of Nitrous.

The trigger is on the gas pedal,  the last quarter inch engages the armed system.  We installed 250 shot nozzles for both NOS and fuel into the throttle body.  The current setup is:

No NOS 420-450 HP

with 900 PSI on the bottle  625 HP

with 1200 PSI on the bottle 725 HP

with 1500 PSI on the bottle 800 HP

INTERIOR

  

· Steel jacket door handles->

· Chrome door kicks->

· Dash cover->

· Custom Burl wood interior (complete)->

· Bose Stereo with 12" amped sub woofer->

· Dark Smoke window tint->

· brass headlight gears ->

· New high grade leather seats with custom embroidry->

· New Carpet->

4 Point restraints

· Exterior Door illuminating "Chevrolet" ground badges

· The interior heater core has been bypassed and capped

Transmission Type 3

  

· TRANSMISSION TYPE T3

· CLUTCHWORKS shift kit and Z pack kit ->

· CLUTCHWORKS Custom built torque converter->

· 

MOTOR

  

  

  • · L98  350CI V8 Corvette Engine Specs with   

Aluminum heads

  • Horsepower: 390-410 hp @ 4,000/5000 rpm
    Torque: 380-390 lb.-ft @ 3,600 rpm

(Modified to 420-440 hp @ 4,000/5000 rpm

Torque 408-420 lb. -ft @ 3,700 rpm) 

depending on fuel octane 

currently 115 octane


  • Compression Ratio:  10.5:1
    Displacement: 350CI (5.7L)
    Cylinder Bore: 4.00” (101.6 mm)
    Stroke: 3.48” (88.39 mm)
  • · 160 deg. thermostat, 180 deg. secondary fan ->
  • · 58mm BNK throttle body and an Air Foil Flow Booster->
  • · Throttle body is cooled with a separate cooling system includes twin mini 4-inch radiators/12V fans mounted up front behind  the vented ground effects
  • · Additional KANT cooling radiators were added to the engine oil, transmission oil and power steering oil to eliminate overheating problems. The close-ratio rack and pinion provides minimum steering wheel turning degrees of 180 from center and can cause heat in the system so a cooler was installed on the steering oil system.
  • · Adjustable fuel regulator set at 50 psi -> full range of                 adjustability between 35-65 psi->
  • · New maxi-flow fuel pump and AC Delco 42 psi injectors ->
  • · Manifold dead air mixture butterfly controls->
  • · Edelbrock ported and polished aluminum heads ->
  • · Sodium-filled valves->
  • · Roller cam->
  • · Full Roller rockers->
  •   Molnar PwrAdr Plus Rods
  •   Tall Custom Valve covers to fit over the rockers
  • · Callie’s Magnum CCW crank double keyed
  • · Custom Diamond flat top pistons
  • · ARP Main studs
  • · ARP head studs
  • · BTR springs w/Tiretainers
  • · 3-stage PCM EFI Hypertech Thermo Master Power Speed chip yielding anywhere from a 35-40 HP gain->
  • · Reduced pulley set ->
  • · Protronics Spit Fire high output ignition ->
  • · Custom MSD Distributor cap and rotor->
  • · Silicon wire set ->
  • · TPIS Coated C4 Headers, 1-¾” X 1-⅞” stepped primaries, and a 3” stainless steel X-pipe and exhaust tubes manufactured by Richards Performance Mufflers (RPM) producing a minimum gain of 25-30 RWHP.
  • Optima American made RED TOP Battery

Secondary Cooling system

  This is the secondary cooling system for the throttle body. It consist  of a reservoir, pump, two frontal cooling radiators and 4 inch electric fans, volume meter along with before and after temps.

Four in Radiators with electric fans for the secondary cooling system.
This is the before and after temps of the throttle body off the secondary cooling system.

coolers

We wanted to get the operating temps down below 200.  We installed the Gant 12x10 coolers on the power steering fluid due to the close ratio rack and pinion heat buildup.  The power steering fluid would get hot and the rack would not perform properly.  

We also added a Gant 12x10 to the transmission oil.   




We  installed a  
Summit Racing Heat Sink Cooler
to help cool the motor oil  ->

We installed a Summit Racing HEAT SINK Tube Cooler for the engine oil. It was placed in the air intake body canal and is hidden from viewing either from the front or from under the car. You would have to follow the feed lines. In the end, the vehicle operates under temperatures of 200 degrees.

SUSPENSION

  

  

Running the Nitto's 555

on
17x10 front
18x12 rear

Firehawk Indy 500

powder coated black wheels 

We upgraded the sway bar to 1 3/4 inch with a set of new Bilstein shocks and replaced all the grommets with Summit Racing neoprene grommets.

I run the rear tires on a negative 1 degree camber setting

Videos

email stephentjohnson@netzero.net for any q

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