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Engine Dyno - Build Your First Engine

Part Four Dyno Testing

Photography by Steve Magnante

DYNO TEST 2
IRON HEADS, SINGLE-PLANE
RPM	LB-FT	HP
3,000	385	220
3,100	391	231
3,200	391	238
3,300	393	247
3,400	395	256
3,500	393	262
3,600	392	269
3,700	393	277
3,800	394	285
3,900	394	293
4,000	395	301
4,100	395	308
4,200	391	312
4,300	389	319
4,400	390	327
4,500	393	337
4,600	394	345
4,700	394	352
4,800	394	360
4,900	393	367
5,000	392	373
5,100	389	378
5,200	386	383
5,300	380	383
5,400	374	384
5,500	362	380
5,600	351	375
5,700	347	377
5,800	339	374
AVG	385	321

DYNO TEST 3
ALUMINUM HEADS, DUAL-PLANE
RPM	LB-FT	HP
3,000	434	248
3,100	436	258
3,200	436	266
3,300	433	272
3,400	430	279
3,500	428	285
3,600	426	292
3,700	423	298
3,800	422	306
3,900	420	312
4,000	428	326
4,100	431	336
4,200	433	346
4,300	432	354
4,400	436	365
4,500	437	375
4,600	440	386
4,700	440	394
4,800	441	403
4,900	438	409
5,000	432	412
5,100	430	418
5,200	424	420
5,300	418	421
5,400	412	424
5,500	409	428
5,600	403	430
5,700	397	431
5,800	390	431
AVG	426	356

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