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.
Baseline Dyno Information:
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
Supercharged Dyno Information:
Filled w/Oregon 92 Octane Fuel
APR Stage 3 Supercharger Kit W/91 Octane Tuning
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 Volkswagen.
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[@ryanfoote16]

That is such a beautiful car.

[@Grimganker]

I drooled a bit while listening to that engine...

[@edgaradolph9647]

It sounds very nice....

[@i_red_panda]

that's what i'm doing. Hopefully getting mine in couple of months.

[@acidkoolaid17]

Crank is around 620 hp..

[@ALLTHINGSCINEMA24]

Damn, stock chp is 420hp, but stop awhp is 306????? The other right.. Stock awhp should be 360awhp.,, Quattro average loss is 60 between Chp and Awhp

[@PorkchopLSX]

Am I the only other person who saw 9200rpm on the baseline dyno? RPM pickup must have been skewed...factory redline is 8250 and that is still blisteringly high for a V8. Still...the after curve from the APR kit is f**king stellar! Fixed all the torque problems - PD boost ftw. What a great setup, and 'only' $15k. ;-)

[@urquattro196]

AWESOME!

[@MikeB-ng3ol]

"Never had a carbon clean on intake valves" - obviously it will read lower.

[@asyoulikeitvideos]

BRB, changing pants...

[@amsgtra9]

Is this with the tvs1320 supercharger

[@FutrellAutowerks]

Yes

[@Willtext]

How do you supercharge these without dropping the compression?

[@FutrellAutowerks]

Low boost.

[@albertobenedetti88]

stock 300whp@9000 rpm????

[@rajdhaliwal]

Jebus. Cross out plan for the M3. Save for the RS4 + supercharger.

[@jamiegregs1192]

I could well be wrong, but that's a rs4? only 300 bhp. I'm sure a 4.2 s4, has 336 bhp or there abouts🤔 and then a supercharger and still only 450bhp. I'd be thinking 500bhp +..... what am I missing here🤔

[@christopherengland654]

I was thinking the same thing because my S4 makes 340hp. When I saw 306hp 😅 I was thinking..."try it again". I thought the stock RS4 B7's made 420hp NA. With a supercharger I would think it would blast up to 490hp+.

[@jamiegregs1192]

Technishun PS4 yes something not wright mate🤔.. I just got a 2005 s4 v8 convertible, iv had it 3 days😁 tomorrow I'm going to try and talk my mate in to cutting the back mufflers off and putting straight pipes after he fixed my oil leak witch I can't find🙄.. I had a look at your car and that's the sound I'll be going for🖒 I would love to do a full straight pipe but well see😁 have a good day jamie🖒

[@edgaradolph9647]

S4 4.2 325 bhp, RS4 4.2 450 bhp

[@Diddies-sq3dh]

holy #$%! if it's putting out 450 on an all-wheel dyno do you know what it is at the crank?

[@FutrellAutowerks]

That’s right at 600 CHP

[@southernply22]

Yeah the B7 RS4 Makes 420BHP at the flywheel.... not sure how it could lose 120Hp to the wheels..

[@DuBstep115]

Its kilowats 306kw = 410hp

[@SlashsSon101]

its because of the quattro you lose about 25% with awd cars

[@HEKTIC458]

300whp god that is weak! I wouldve thought it should make more than 450awhp after the supercharger.

[@gavinsloma]

this car seems to be down on power ...300whp should be more like 360whp

[@exposingdemocrats8370]

Look. 302whp is no joke. Some people have 600-700whp and can’t even put it down Bc they’re spinning tires