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|
| BY THE NUMBERS |
| TPIS LSX 383 |
| Bore: |
4.101 inches |
| Stroke: |
3.625 inches |
| Displacement: |
383 ci |
| Compression ratio: |
11.3:1 |
| Camshaft: |
Cam Motion solid roller |
| Valve lift: |
.707/.680 inch |
| Duration at .050: |
255/262 degrees |
| Rocker type/ratio: |
Jesel 1.7:1 |
| Pistons: |
CP forged |
| Top ring: |
Total Seal .032 |
| Second ring: |
Total Seal .032 |
| Oil ring: |
Total Seal 3mm |
| Block: |
GM LSX |
| Crank: |
Callies forged |
| Rods: |
Manley forged |
| Heads: |
AFR aluminum, CNC 240cc |
| Intake valve: |
2.165 inches |
| Exhaust valve: |
1.60 inches |
| Intake: |
Edelbrock Super Victor, port-matched |
| Throttle body: |
TPIS 102mm |
| EFI controller: |
GM |
| Wiring harness: |
Howell Engine Management |
| Programming: |
TPIS/LS1 Edit |
| Headers: |
American Racing with 1.75-inch primary |
| Ignition: |
GM |
| DYNO DATA |
| TPIS 383 |
| RPM |
TQ |
HP |
| 3,000 |
443.6 |
253.4 |
| 3,100 |
444.4 |
262.3 |
| 3,200 |
438.4 |
267.1 |
| 3,300 |
429.5 |
269.9 |
| 3,400 |
417.4 |
270.2 |
| 3,500 |
399.9 |
266.5 |
| 3,600 |
387.6 |
265.7 |
| 3,700 |
389.9 |
274.7 |
| 3,800 |
399.3 |
288.9 |
| 3,900 |
415.4 |
308.4 |
| 4,000 |
433.9 |
330.4 |
| 4,100 |
448.3 |
350.0 |
| 4,200 |
462.7 |
370.0 |
| 4,300 |
473.9 |
388.0 |
| 4,400 |
484.6 |
406.0 |
| 4,500 |
491.7 |
421.3 |
| 4,600 |
496.8 |
435.2 |
| 4,700 |
501.0 |
448.2 |
| 4,800 |
506.0 |
462.2 |
| 4,900 |
510.0 |
475.9 |
| 5,000 |
514.0 |
489.5 |
| 5,100 |
517.0 |
502.0 |
| 5,200 |
520.0 |
515.0 |
| 5,300 |
524.0 |
529.0 |
| 5,400 |
525.0 |
540.0 |
| 5,500 |
526.0 |
551.0 |
| 5,600 |
525.0 |
560.0 |
| 5,700 |
523.0 |
568.0 |
| 5,800 |
520.0 |
575.0 |
| 5,900 |
517.0 |
581.0 |
| 6,000 |
514.0 |
587.0 |
| 6,100 |
511.0 |
594.0 |
| 6,200 |
508.0 |
600.0 |
| 6,300 |
506.0 |
607.0 |
| 6,400 |
501.0 |
610.0 |
| 6,500 |
496.0 |
614.0 |
| 6,600 |
493.3 |
620.0 |
| 6,700 |
488.6 |
623.0 |
| 6,800 |
483.3 |
626.0 |
| 6,900 |
477.6 |
627.0 |
| 7,000 |
471.9 |
629.0 |
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