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Mustang Dyno - Dyno Tuning

Know What's Up Before You Go

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Mustang Tech
Car: '67 Mustang GTA
Owner: Greg Smith
Engine: 351 Windsor with stock crank and rods, TRW forged dished pistons
Induction: Edelbrock Victor Jr. port matched and milled, Holley 750 with mechanical secondaries.
Ignition: MSD Billet distributor and 6AL ignition box
Heads: Iron Trick Flow Specialties with 2.02/1.60-inch intake/exhaust valves
Camshaft: Comp Cams XR286 mechanical flat-tappet, 248/254 degrees duration at 0.050 with 0.614/0.621-inch lift.
Transmission: C6 automatic with a 10-inch Continental 3,400-stall converter
Rearend: 9-inch with Richmond 4.56:1 gears and a Detroit Locker
Front Suspension: Competition engineering 90/10 drag shocks
Rear Suspension: CalTrack (SP) bars, Competition Engineering drag shocks
Wheels and Tires: Fenton slotted mags, 15x3.5 with M/T front runners, front; 15x10 with 28.5x12.5 M/T ET Streets, rear

Dyno Numbers
The final run with 38 degrees of timing, an 11.5:1 air/fuel ratio, 66/79 jets, and the K&N air cleaner was good for 337 hp at 6,400 rpm and 319 lb-ft of torque at 4,800, up 7 hp from the baseline. We also found the shift points and cleaned up the air/fuel ratio for a little more mileage.

  Test 1
2-inch
Air Cleaner
10:1:1 Avg.
Air/fuel Ratio
Test 2
3-inch Drop Base
K&N Filter
11.5:1 Avg.
Air/fuel Ratio
RPM HP TQ HP TQ
4,500 254 314 258 299
4,600 281 319 280 314
4,700 283 315 284 316
4,800 285 311 292 319
4,900 286 306 296 314
5,000 287 301 298 308
5,100 291 299 300 306
5,200 296 299 307 306
5,300 305 298 312 306
5,400 309 298 316 307
5,500 312 298 322 304
5,600 317 295 323 301
5,700 320 293 325 298
5,800 320 288 326 292
5,900 322 285 326 289
6,000 324 280 328 285
6,100 328 281 334 283
6,200 330 278 336 275
6,300 326 280 336 273
6,400 324 279 337 271
SOURCES
Westech Performance Group
Mira Loma
CA
951-685-4767
http://www.westechperformance.co
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