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Ford Horsepower and Torque Curves
YOU WANT A GEAR VENDOR YOU GET ALL THESE BENEFITS & MORE |
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FORD HORSEPOWER AND TORQUE CURVES
If you study these performance curves you will see two major benefits of gear
splitting; increased horsepower and multiplied torque. As an example, we’ll use the
E40D/4R100 Trans chart with a 4.10 rear and both the 7.3 DI Diesel and Fords new
high rev V10. For the diesel engine the ability to keep the engine in a narrow band
is even more important than the gasoline powerplants because of the lower rpm ranges
where the power is made. Gaining a 4.92 multiplier plus the ability to drop only
500rpm on-shift instead of a thousand makes a dramatic difference. Notice if you
rev to 3400rpm (way above power) in 2nd and then shift to 3rd your engine speed drops
to 2210rpm. With GEAR VENDORS you can rev to just 2650 with great hp and torque and
a 20% greater torque multiplier in 2nd-over and drop to only 2200rpm onshift to 3rd.
As an example, with the new High Rv V10 since gears are
multipliers of torque at 4000 rpm in 2nd-over the torque multiplier is 4.92 where
without the GEAR VENDORS you would get into 3300rpm in 3rd-direct a 4.10. The difference
in engine torque is only 10lb ft. but the difference in the multiplier is 4.92 vs.
4.10. That’s 20% more working torque (net). At this same moment horsepower at 4,000rpm
is 300 instead of 250 @ 3300 which is 20% more horsepower with all the reliability
of your stock powerplant.
To figure the drop in rpm or torque multiplier from on gear to the next calculate
as follows: Final Drive Ratio of the gear you are shifting to , divide by the gear
you are shifting from, minus 1, times 100. The difference from 1st over to 2nd is
ever more dramatic. This is why if you are towing or loaded heavily, the best way
to reliably improve performance is with the GEAR VNDORS UNDER/OVERDRIVE. It’s the
same reason the big 18 wheelers have 2 and 3 speed auxiliaries for 10 to 15 gears.
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In addition to the overdrive units, we also provide an impressive
list of automotive after market products for car, pickup truck, SUV and 4wd repair
parts and accessories that includes rear
end covers, ring and pinion
gears, OE clutches and heavy duty performance
clutches, diesel gauge kits, exhaust brakes,
re manufactured manual
and automatic transmissions
and both manual
and automatic
overhaul kits. Other products we offer for the RV recreational vehicle market include
REMCO drivelinedisconnects,
tow bar and baseplates and
positraction units to improve vehicle performance and save fuel. We have a complete
4 wheeling drivetrain product
line including complete differential assemblies, limited
slip and other solid
locking positractions. We offer transmission conversion
kits including the NV4500
and NV5600 as well as replacement
kits for light duty GM and Jeep transmissions. You may be interested in visiting
our Ford and Powerstroke Diesel
page, Dodge Ram and
Jeep pages for detailed
information.
Watch for future additions of new products to be added to our on-line catalog including advanced wheels, tires, engine tune-up kits and other accessories.
Need more information call 1-800-216-1632 talk
to a knowledgeable technician.
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Drivetrain Specialists of Las Vegas
Las Vegas NV, 89102
