Mustang Monthly – September 2019

GRAPH 2

SUPERCHARGED 302 —

EFFECT OF (PERFECT) TIMING

T

hough we showed the end

result of the dyno testing,

we did not arrive at our peak

numbers without some tun-

ing. We thought you might like to see

how the engine responded to different

timing levels, as we generally start out

conservative in timing and then work

our way up. This also provides informa-

tion on how well the combination might

work at reduced timing levels required on lower-octane fuel. Run first

at just 20 degrees of total timing, the supercharged engine produced

494 hp and 468 lb-ft of torque. After first adding 2 degrees, for a total of

22, the power jumped to 521 hp and 485 lb-ft; we dialed it up to 24

degrees and were rewarded with 540 hp and 499 lb-ft. We then tried

26 degrees, which brought 574 hp and 521 lb-ft of torque. The final test

involved 27 degrees, which allowed our supercharged motor to produce

578 hp and 531 lb-ft of torque.

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