1993 CHEVROLET CAMARO Z28

(full stock interior, AC, PWR Steering, cruise, PWR windows/locks)

STOCK FORM

Patriot Red (Burgandy)

88,000 miles

LT1 350 (275 HP from the factory)

6 speed transmission

13.70 ET. MODIFICATION LIST

All parts listed above plus:

Bosch Platinum plugs

Crane HI-6

Crane PS91

Crane Gold 1.6 roller rockers

52mm T.P.I.S. Throttle Body

T.P.I.S. Wires

T.P.I.S. fuel pressure gauge

4" intake

K&N airfilter

M/T SPORTSMANS 26X10.5X16 DOT

Strange 3.73 gears

13.11 ET. MODIFICATION LIST

All parts listed above plus:

MAC 1 5/8" headers, Y-pipe, and Off-Road pipe

* speed - 103 mph

12.88 ET. MODIFICATION LIST

All parts listed above plus:

Z-Industries Chip

* speed - 105 mph

12.22 ET. MODIFICATION LIST

All parts listed above plus:

Disconnected front right sway bar mount

M/T ET Street 26x11.5x16 DOT

Strange 4.10 gears

Z-Industries custom computer chip

Comp Cams 306 camshaft

New LT1 timeing chain

Ford SVO 24# injectors

58mm BBK Throttle Body

RPS Turbo Clutch

Roller pilot bearing

Mild cylinder head porting

Comp Cams valve spring (stock diameter, .600 lift)

Modified valve cover for passenger side easy removal

No EGR valve, air pump, or knock sensor

IAT sensor relocated

44 psi Fuel Pressure

Hypertech Adjustable FP regulator

Intelletronix Air/Fuel gauge

Flowmaster Force II single outlet cat-back

* speed - 112.81 mph

12.70 ET. MODIFICATION LIST

• 3.42 gears

12.19 ET. MODIFICATION LIST

All parts listed above plus:

Hooker SuperComp 1 3/4" Full-length headers

Crankcase evacuation kit

* speed - 120.94 mph

* best speed to date - [email protected] mph

11.91 ET. MODIFICATION LIST

• 60' >> 1.658
• 1/8et. >> 7.651
• 1/4et. >> 11.913
• 1/4et. >> 116.26
• All parts listed above plus:
• B&M Ripper
• Richmond 4.10 ring and pinion gear set
• FP set to 46 psi.

11.18 et. @ 124 mph on 7 cylinders

• Nitrous Express GM EFI Race kit 200 HP
• Moser Ford 9" with 4.10 gears
• McCleod dual friction disc
• Hoosier 28" slicks
• 3" custom dual exhaust with Hooker Aerochambers
• T-Rex Fuel Pump
• ASCD replica SS hood
• Cragar Dragstars

Why so slow?

• 1 piston cracked
• 2 broken rings
• clutch disc suddenly died

**How was the engine damaged?  It ran lean a few times while running an ATI Supercharger.

**The quickest et. was only a 12.14 et.

NEW MODS., BUT NO ETs YET.

Rebuild w/.030 JE SRP pistons

Total Seal race rings

Full port job on stock LT1 heads w/stock valves

Measured @ 28" of H2O

LIFT	INTAKE	EXHAUST
.200	145 CFM	109 CFM
.300	193 CFM	150 CFM
.400	228 CFM	176 CFM
.500	245 CFM	184 CFM
.600	255 CFM	191 CFM

New OEM timing set

ARP rod and head bolts

RAM 6 puck clutch disc

WHAT IS STILL STOCK?

• Intake
• Fuel rail
• Injectors
• Crank
• Rods
• Suspension
• Fuel lines

F-Body List Member since 1995.

Raughammer's Z28

Modification Links:

• Knock Sensor Removal
• Ring and Pinion Install
• 3" Dual Exhaust
• Clutch Discs
• Taking apart the T56

Listen to my 12.19 sec. 1/4 mile pass at 121 mph with open headers.

Mods and Damage Page