With
the engine built to be blown, our low-compression 540
made 507 hp at 4,800 rpm and 606 lb-ft of torque at 3,200
rpm. Fully intercooled and boost set on kill,
those numbers jumped to 913 hp at 5,800 rpm, with 903
lb-ft of torque at 4,800. The difference with
the ATI ProCharger is huge, to say the least. Those numbers
represent an increase of a solid 80 percent in horsepower
and 49 percent in torque. That’s a ridiculous
increase that would make your “seat of the pants” feel
like a NASA space shutte launch!
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“When
put into the [supercharger] system, an intercooler brings
the air temp back down, thus increasing its density and
removing the need to retard the timing. Reliable
power gains go from 25-45 percent with a supercharger
alone to 60-75* percent with an intercooler.”
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“Any time that
you compress air, like with a supercharger, that creates
heat, and heat is the enemy of horsepower. An air-to-air
intercooler takes that hot blast of air and cools it down.
This [Intercooled ProCharger system] will give
you a 65% increase in power [with 8.5 psi]. That’s more
than any other supercharger on the market.”
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"Compressed
air gets hot, but diverting it through the intercooler
cools it down before it gets to the throttle-body."
"A [chassis] dyno run demonstrated a maximum of
377.8 rwhp and 357.9 lb-ft of torque." (66% power
gain, stock '02 5.3L Tahoe)
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“These
intercooled ProCharger systems provide reliable
60-90 percent gains* in horsepower and torque on pump
gas, with significantly better engine reliability
than is possible when supercharging without an intercooler.”
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"The
mildly modded 5.4 (2004 3V) received a ProCharger P-1SC
centrifugal supercharger along with its air-to-air intercooler.
The GMS crew reflashed the computer with Superchips Custom
Tuning software, and the 5.4-liter SOHC motor now
makes 420 rwhp and 410 lb-ft of torque."
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“The driveability of
the system was tested when we loaded down the truck with a 7,000-pound
boat and trailer and a bed full of weekend boating gear, and
traveled a couple of hundred miles over hilly highway toward
The Lake of the Ozarks in humid 85-degree weather. Even under
boost conditions, as the truck effortlessly pulled the weight
up long hills for long periods of time, the engine’s coolant
temperature never surpassed normal operating temperatures.”
“Because of the extraordinary efficiency of both the ProCharger
and intercooler systems, intercooled ProCharger systems feature
the coolest intake temperature of any supercharger.”
“Intercooled supercharging results in less stress
on engine parts, lower engine temperatures, and better
fuel mileage.”
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“By using an air-to-air
system, more boost can be applied to the motor without
fear of detonation or the need for added fuel
enrichment systems or ignition retarding.”
“In addition to denser air and full ignition timing, there
is considerably less parasitic loss...”
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“What cuts down on a charger’s efficiency is a byproduct of compressing air - heat. When the air is compressed, it gets hotter. And the hotter it gets the less dense it becomes. You will still see power gains but the ignition timing has to be pulled back about 1 degree per pound of boost to keep the engine from detonating or pinging.”
“The intercooler (like a radiator for the air) brings the temp back down to around 20 degrees above the outside air temp.”
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“That’s
a 2.33-second gain in the quarter-mile [with a stock 5.7
TBI] on pump fuel without sacrificing any driveability.”
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