DISCO STREETSLEEPER
Owner Bio: Louis DeBiase
1978 Grand Prix
Obviously built as a sleeper, Louis DeBiase's '78 GP retains its luxo-cruiser look on the outside, while under the skin lurks a 455 with power to spare. The 33-year-old Trumbull, Conn.-based plumber has been racing for 15 years and likes nothing more than burning rubber in this GP and racing motorcycles. He demonstrated the former technique on the first run down the strip before swapping to cheaters. The street tires fried almost the length of the track.
STRIP TUNING LOG
Best passes of 13 total |
| Run | Tuning | Launch
RPM | Shift
Point | 60-Ft | ET/MPH |
| 1 | Street tires | Off idle | 6000 | 3.35 | 18.62/79.76 |
| 2 | Changed to
M&Hs, 15 psi
in tires | Off idle | 6000 | 1.69 | 11.87/113.41 |
| 3 | 14 psi. in the tires | Off idle | 6000 | 1.69 | 11.75/114.26 |
| 4 | 12 psi in the tires | Off idle | 5000 | 1.76 | 11.89/113.85 |
| 5 | Same | Off idle | 5500 | 1.66 | 11.72/113.99 |
| 6 | Same | Off idle | 6000 | 1.63 | 11.68/113.85 |
| STRIP SPECS |
| Owner: | Louis DeBiase |
| Year/Model: | 1978 Grand Prix |
| Race weight: | 3,888 lbs. |
| Curb weight: | 3,666 lbs |
| Engine: | 1972 455 bored .030-over |
| Built by: | Owner, machine work by Valley Auto Machine |
| Carburetor / jets: | 750 Holley, jets #72 |
| Intake manifold: | Torker II, Edelbrock port matched |
| Heads: | #62 Ported by Jim Butler, 2.11/1.77 valves |
| Pistons: | TRW forged .030-over, Jim Butler dished to lower compression |
| Rods: | 1974 Super Duty |
| Compression Ratio: | 8.5:1 |
| Crankshaft: | Stock 455 Nodular iron cut .010/.010, Nitrided |
| Camshaft: | Custom grind solid, to owner's secret specs |
| Ignition: | MSD 6AL, HEI welded distributor advance plate |
| Total timing: | 32° |
| Exhaust: | 4 Tube Hooker 1.875 diameter, 3-inch collector,
3-inch head pipes, Dynomax mufflers |
| Power adder: | None |
| Transmission: | Turbo-350 with hardened sprag, built by Ottomatic in
Monroe, CT |
| Torque converter: | 10-inch Dynamic 3000 stall |
| Shifter: | Stock |
| Rear type/ratio: | Grand National Posi, 3.42 gears |
| Brakes F/R: | Stock disc/drum |
| Rims F/R: | GTA 16x8-inch |
| Tires F/R: | Front 245/50-16, rear cheaters M&H 26x10-16 |
Suspension mods
front: | Stock, KYB shocks |
Suspension mods
rear: | Stock, KYB shocks |
| Chassis modifications: | Stock |
| Interior modifications: | Stock |
| Exterior modifications: | Stock |
| Safety modifications: | Driveshaft loop |
| Paint: | Burgundy |
| Launch Technique: | Off Idle |
FRONT-WHEELED FIREPOWER
Owner Bio: John C. Pawlowski Jr.
2000 GTX Ram Air
At the tender age of 19, John Pawlowski owns one of the wildest GPs ever to come down the pike. As John recalls, "Back when SLP first released the GTX, I saw one at a car show and liked it. I later went to the dealer with a friend and fell in love with car. I had to have it. Mine is babied. It's garage-kept and stays in during the winter. So far, it has taken First place in a few car shows as well." It would seem that this Bensalem, Pa. native has a few years of racing and showin' ahead of him and he's not even out of school yet.
STRIP TUNING LOG
Top 5 runs of 16 |
| Run | Tuning | Launch
RPM | Shift
Point | 60-Ft | ET/MPH |
| 1 | Off street | 2200 | 5300/6100 | 2.55 | 15.00/96.99 |
| 2 | Increased fuel pressure | 2200 | 5300/6100 | 2.44 | 14.74/96.51 |
| 3 | Same, walked it out | 2200 | 5300/6100 | 2.28 | 14.46/96.58 |
| 4 | Same, walked it out | 2200 | 5300/6100 | 2.21 | 14.11/97.46 |
| 5 | Same, walked it out | 2200 | 5300/6100 | 2.35 | 14.49/97.66 |
| STRIP SPECS |
| Owner: | John C. Pawlowski Jr. |
| Year/Model: | 2000 GTX Ram Air |
| Race weight: | 3,620 lbs. |
| Curb weight: | 3,430 lbs. |
| Engine: | 3.8L (231 c.i.) V6 Supercharged 260 HP |
| Built by: | GM |
| Induction: | Sequential port fuel injection, SLP cold air Eaton Supercharger, stock throttle body and mass air meter, fuel pressure raised to 63 psi (normally set at 51 psi.) |
| Intake manifold: | Stock dry |
| Heads: | Stock GM aluminum |
| Pistons: | Stock |
| Rods: | Stock |
| Compression Ratio: | 8.5:1 |
| Crankshaft: | Stock |
| Camshaft: | Stock |
| Ignition: | Stock Electronic |
| Total timing: | Computer controlled, advanced 2° with SLP air/temp module |
| Exhaust: | Stock forward with Borla 2.25-inches cat back |
| Power adder: | Stock Eaton Supercharger with smaller Thrasher 3.4-inch diameter pulley for 12 psi. boost |
| Trans/axle: | Stock automatic with 2.93:1 final drive |
| Torque converter: | Stock lockup |
| Shifter: | Stock |
| Brakes F/R: | Stock 10.9-inch 4-wheel disc |
| Rims F/R: | Stock 16x7 aluminum |
| Tires F/R: | 225/60-R16 Goodyears |
Suspension mods
front: | Stock |
Suspension mods
rear: | Stock |
| Chassis modifications: | Stock |
| Interior modifications: | Pillar pods with AutoMeter fuel pressure and boost gauges, optional floor mats with GTX logo |
| Exterior modifications: | SLP GTX kit, (hood and air induction system), optional rear spoiler |
| Safety modifications: | None |
| Paint: | Factory Black |
| Launch Technique: | Foot brake till boost gauge is up to zero and launch about 2200 rpm |