What peak horsepower does the 357W with GT40 heads and Isky cam make in this simulation?

The Dyno2000 simulation shows a peak of 317 HP (flywheel) at 4500 RPM.

What is the peak torque and at what RPM?

Peak torque is 427 lb-ft (flywheel) at 3500 RPM.

What software produced this data?

Dyno2000 Version 3.10, from the file 371265-275.dyn; this is page 3 of 5 of the printout.

What is the highest volumetric efficiency shown?

82.2% at 3500 RPM (82.1% at 4000 RPM is nearly identical).

At what RPM does the simulated engine stop making power?

Power drops to 38 HP at 8000 RPM and reads 0 from 8500 RPM upward, with BMEP going negative (-5.2 at 8500 RPM).

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357W GT40 Heads Isky Cam Dyno2000 Power & Torque Table (317 HP / 427 lb-ft)

Dyno2000 calculated power and engine pressures table, 357W, GT40 heads, Isky cam 265/275

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Dyno2000 simulation spec page for a 357W with GT40 heads and Isky 265/275 cam; peaks ~317 HP at 4500 RPM and 427 lb-ft at 3500 RPM.

AI caption February 2011 · Photo 31 of 256

This document is page 3 of 5 from a Dyno2000 Version 3.10 engine simulation printout for a 357W (stroked Ford 351 Windsor) engine build fitted with GT40 cylinder heads and an Isky camshaft (file 371265-275.dyn). Titled 'CALCULATED POWER AND ENGINE PRESSURES,' it presents a table of simulated engine output from 2000 to 11000 RPM in 500 RPM increments. Columns include flywheel power (HP), flywheel torque (lb-ft), intake manifold pressure, volumetric efficiency percentage, IMEP (indicated mean effective pressure), FMEP (friction mean effective pressure), and BMEP (brake mean effective pressure). Peak torque of 427 lb-ft occurs at 3500 RPM, and peak power of 317 HP occurs at 4500 RPM. Volumetric efficiency peaks around 82.2% at 3500 RPM. Power falls off sharply above 7500 RPM, dropping to zero by 8500 RPM as FMEP exceeds IMEP and BMEP goes negative. A reader can use this table to see the predicted powerband and pressure characteristics of this particular head/cam combination, and compare it against other simulated cam options in the same album for a 351W-based truck engine build.

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Frequently asked questions

What peak horsepower does the 357W with GT40 heads and Isky cam make in this simulation?: The Dyno2000 simulation shows a peak of 317 HP (flywheel) at 4500 RPM.
What is the peak torque and at what RPM?: Peak torque is 427 lb-ft (flywheel) at 3500 RPM.
What software produced this data?: Dyno2000 Version 3.10, from the file 371265-275.dyn; this is page 3 of 5 of the printout.
What is the highest volumetric efficiency shown?: 82.2% at 3500 RPM (82.1% at 4000 RPM is nearly identical).
At what RPM does the simulated engine stop making power?: Power drops to 38 HP at 8000 RPM and reads 0 from 8500 RPM upward, with BMEP going negative (-5.2 at 8500 RPM).