Futrell Autowerks: APR Supercharged RS4 Before/After Dyno Testing
The Futrell Autowerks Team delivers you the before/after Dyno results from our
installation and Dyno
testing of our 2007 Audi RS4 both before Supercharger install and after.
Filled w/Oregon 92 Octane Fuel
APR Stage 1 Tuning 91 Octane Mapping
Full Milltek Exhaust
31K Miles, Never had a carbon clean on intake valves
Power produced at wheels 306 WHP 260 ft.lbs of wheel torque
Filled w/Oregon 92 Octane Fuel
APR Stage 3 Supercharger Kit W/91 Octane
Full Milltek Exhaust
31K Miles, Intake Valves cleaned of carbon build-up during Supercharger installation
Power produced at wheels 450 WHP 395 ft.lbs of wheel torque
Dyno correction is set
at zero, smoothing at 5, ambient temperature high 60's/low 70s (Fahrenheit)
Power measured at all four wheels on a Dynojet 248X - Not owned or
operated by Futrell Autowerks or APR.
Are you interested in supercharging your RS4 or 4.2L FSI RS5 or S5? Please
contact us for a comprehensive quote, logistical services available we have
over ten years of experience working directly with APR to deliver the
ultimate in reliable, drivable performance upgrades for your Audi or
Caught on CCTV: thieves steal Audi RS4
It took just 90 seconds for thieves to break into this Sunday Times
reader's Audi RS4 by breaking the window and plugging a device —
assumed to be a piece of equipment available online that is used to silence
alarms and program blank key fobs — into the dashboard.
The footage raises disturbing questions about car security of keyless-entry
Read the full story here:
APR B7 RS4 Stage III TVS1740 Supercharger System breaks into the 10's!
The vehicle is a B7 RS4 with a 4.2L FSI V8 and 6MT transmission. Mods to
the vehicle are as follows:
- APR Stage III TVS1740 Supercharger
- APR High Pressure Fuel Pumps
- Magnaflow OEM diameter downpipes and catalysts
- K&N Intake Panel Filter
- JHM Stage 5R Clutch and Flywheel
- TSW Nurburging Wheels & Michelin PSS Tires (46lbs each)
- Hotchkis swaybars
- OEM Intake housing/ducting
- OEM catback Exhaust
- OEM suspension (springs/struts/shocks)
- OEM interior, full weight, us spec
We were able to make our first pass at 12:08 in the afternoon with the
density altitude (DA) sitting at -392.8 ft and steadily rising till around
3PM where it began falling again. We started with our local 93 octane fuel
and 93 octane software and began practicing our launches. After 3 attempts
we were hitting 1.7x 60' times and were passing the quarter mile mark at
11.2x seconds at 122-123 MPH. The car was very consistent producing 6
passes in a row in the 11.1 and 11.2 range, including hot lapped passes
(meaning running down the strip, coming back and running again with no cool
On 93 octane with our 93 octane software our best ET the day was
email@example.com with a 1.654 60 FT time and a DA of only -42.2 feet! Our best
trap speed of the day was with an firstname.lastname@example.org MPH with a 1.772 60 FT and
a DA of -58.1 feet.
Around 4 PM we switched over to 100 octane to get in a few passes.
Unfortunately the daylight was dropping and the track informed us we could
only run till it was dark. We only had time to run several passes on 100
octane with very little cool down time between each run. Never the less, on
100 octane our best ET and trap speed was on our second pass, only several
minutes after the previous run and was email@example.com with a less than
stellar 1.802 60 FT and a DA of -155.5 ft.
Overall we were very impressed with performance given this was our first
attempt in the RS4. The DA on our record 93 octane passes was very close to
0 feet and we believe with a lower DA, the times could drop. Likewise, with
an improved 60 foot time, we believe a 10 second pass is achievable on
street tires and full weight, possibly even on 93 octane. We unfortunately
do not have any data for a full high flow Exhaust system and other common modifications
popular to the RS4 community, but hope to see results from our customers
who've upgraded further!
That brings us to the fun part!
After only a few passes on 100 octane, we decided it was time to have fun
before the track closed. We jacked the car up, drained the fuel, threw in
104 octane, installed our 104 octane software, removed the passenger and
back seat, installed drag slicks, and removed the factory catback Exhaust for even more weight savings.
We fired up the RS4 and it was beastly! Everyone at the track crowded
around to make sense of this snarling Audi in the heart of American muscle
We had less than an hour to get in a few passes before the track closed.
The first run broke into the 10 with our top trap speed of the day at
131.67 MPH, but we knew it had more in it. On the next run we did a massive
burn out and heated up the tires and were able to hit a 1.49 60 ft time,
but a missed shift resulted in only a 10.7@130 pass. Eric pulled the car
around, let it cool for a second and headed right back out. The next pull
was his best pass of the evening, setting a firstname.lastname@example.org pass with a 1.500
60 FT time and a DA of -528.2 as the sun was dropping. We were so close to
10.5's but there wasn't enough time to get in many more passes with any
decent cool down time between. We were able to run 3 more passes several
minutes apart and cut 10.6's on each one with trap speeds ranging from