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Thread: B9 RS5 Dyno

  1. #1
    Veteran Member Three Rings
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    B9 RS5 Dyno

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    Wanted to get some true numbers to the previous owners claims which I had posted earlier. Seems to me his numbers were crank #'s, not at the wheels which make more sense.
    Bought my 2019 RS5 about 4 weeks ago with mods already done by the previous owner which is awesome as it saves me some time and $$$. Loving the car to say the least as it's my new daily driver. Always had my other cars (3000GT VR4) dyno'd so I wanted to see how the RS5 compaired. Mods are AWE Tuning AirGate Carbon Fiber Intake, ARMYTRIX Highflow Performance Race Downpipe, VR Tuned ECU Tuning Box Kit V1 and a Exhaust Cutout before rear mufflers.
    All runs on 93 octane pump gas
    Run #1: Base run with just the Intake. VRTune Box and exhaust cutout disabled
    Run #2: Intake and VRTuned Box
    Run #3: Intake, VRTuned Box and Exhaust cutout opened.
    Big shout-out to Manny Reyes @ Chameleon Tuning for taking the time to dyno my car and educate me on this Audi.
    https://www.facebook.com/chameleontuninginc




    Last edited by oohnoo; 07-19-2022 at 04:45 PM.

    2019 RS5
    2013 Audi S5 Estoril Blue - SOLD
    Weekend Warriors - '97 Mitsubishi 3000GT VR4 / '96 Mitsubishi 3000GT VR4 Spyder

  2. #2
    Veteran Member Three Rings Dan99's Avatar
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    Quote Originally Posted by oohnoo View Post
    ...All runs on 93 octane pump gas
    Run #1: Base run with just the Intake. VRTune Box and exhaust cutout disabled
    Run #2: Intake and VRTuned Box
    Run #3: Intake, VRTuned Box and Exhaust cutout opened.
    Big shout-out to Manny Reyes @ Chameleon Tuning for taking the time to dyno my car and educate me on this Audi.
    https://www.facebook.com/chameleontuninginc

    It is hard to compare figures from one dyno on another, so I won't try. But it's more valid to compare the delta on one dyno with the delta on another, so I'll do that.

    On your dyno, all of the modifications increased horsepower by 37 (450-413) and torque by 66 ft lbs (515-471)

    As a point of comparison, an 034 Stage 1 93 octane tune for the RS5, without any intake or exhaust modifications, increases horsepower by 73 (514-441) and torque by 70 ft lbs (537-467):

    https://store.034motorsport.com/034m...ng-bundle.html

  3. #3
    Veteran Member Three Rings
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    Quote Originally Posted by Dan99 View Post
    It is hard to compare figures from one dyno on another, so I won't try. But it's more valid to compare the delta on one dyno with the delta on another, so I'll do that.

    On your dyno, all of the modifications increased horsepower by 37 (450-413) and torque by 66 ft lbs (515-471)

    As a point of comparison, an 034 Stage 1 93 octane tune for the RS5, without any intake or exhaust modifications, increases horsepower by 73 (514-441) and torque by 70 ft lbs (537-467):

    https://store.034motorsport.com/034m...ng-bundle.html
    Not sure what your point is. With the VRtune box I have on the car it’s a piggyback to the ECU where I can remove it if needed when going to the dealer while under warranty. Unlike the 034 which is flashed into the stock ECU I’ll be flagged and void my warranty

    But If your going to compare numbers the least you can do compare apples to apples. The one you listed is for crank hp, NOT wheel hp which my graphs show. So the 034 is only putting down 430awhp, 20 less than mine.

    https://store.034motorsport.com/034m...ng-bundle.html


    Sent from my iPhone using Audizine Forum

    2019 RS5
    2013 Audi S5 Estoril Blue - SOLD
    Weekend Warriors - '97 Mitsubishi 3000GT VR4 / '96 Mitsubishi 3000GT VR4 Spyder

  4. #4
    Veteran Member Three Rings Dan99's Avatar
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    Quote Originally Posted by oohnoo View Post
    Not sure what your point is. With the VRtune box I have on the car it’s a piggyback to the ECU where I can remove it if needed when going to the dealer while under warranty. Unlike the 034 which is flashed into the stock ECU I’ll be flagged and void my warranty

    But If your going to compare numbers the least you can do compare apples to apples. The one you listed is for crank hp, NOT wheel hp which my graphs show. So the 034 is only putting down 430awhp, 20 less than mine.

    https://store.034motorsport.com/034m...ng-bundle.html


    Sent from my iPhone using Audizine Forum
    What's my point? You asked for others to post dyno results. All of those will be collected on different dynos under different conditions so you can't compare absolute numbers on one dyno from those on another. You have to look at the deltas and compare them. (For consistency sake, I will use 1.20 (12/10) in the calculations below to indicate drive train power consumption, and .83 to reverse calculate wheel power from crank figures (10/12.). All of the figures below are for 93 octane tunes.

    - Your dyno said stock hp at the wheels was 413. If you add 20% to that, your dyno says your stock hp at the crank is 495 (413 * 1.2). Since Audi advertises 444 hp at the crank, 495 seems wildly inflated.

    - The APR website shows stock hp at the crank is 458, which is also higher than Audi's ratings. APR does not provide wheel numbers for 93 octane, but if you multiply the crank numbers by .83 you get 382 hp at the wheels.

    - The 034 dyno numbers show stock hp at the wheels is 370. If you add 20% to that you get 444 (370 * 1.2), so the 034 dyno is calibrated similarly to the one used by Audi.

    So, your dyno thinks the stock engine baseline is 495 hp at the crank, APR says the baseline is 458 hp, 034 says it's 444, and Audi says it's 444. And, since each of these dyno results don't start with the same baseline, you can't directly compare the peak numbers. You have to compare the delta. As an example, using the figures above:

    - Your dyno shows a net gain of 37 hp and 43 ft lbs of torque at the wheels.

    - APR shows a net gain of 32 hp at the wheels and 72 ft lbs at the wheels. Calculations were (40 crank hp * .83) (87 crank torque * .83).

    - 034 shows a net gain of 60 hp and 57 ft lbs of torque at the wheels.

    So, if you are trying to look at results from other dynos you have to pay attention to these differences when you try to compare one with another.

  5. #5
    Veteran Member Three Rings
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    Quote Originally Posted by Dan99 View Post
    What's my point? You asked for others to post dyno results. All of those will be collected on different dynos under different conditions so you can't compare absolute numbers on one dyno from those on another. You have to look at the deltas and compare them. (For consistency sake, I will use 1.20 (12/10) in the calculations below to indicate drive train power consumption, and .83 to reverse calculate wheel power from crank figures (10/12.). All of the figures below are for 93 octane tunes.

    - Your dyno said stock hp at the wheels was 413. If you add 20% to that, your dyno says your stock hp at the crank is 495 (413 * 1.2). Since Audi advertises 444 hp at the crank, 495 seems wildly inflated.

    - The APR website shows stock hp at the crank is 458, which is also higher than Audi's ratings. APR does not provide wheel numbers for 93 octane, but if you multiply the crank numbers by .83 you get 382 hp at the wheels.

    - The 034 dyno numbers show stock hp at the wheels is 370. If you add 20% to that you get 444 (370 * 1.2), so the 034 dyno is calibrated similarly to the one used by Audi.

    So, your dyno thinks the stock engine baseline is 495 hp at the crank, APR says the baseline is 458 hp, 034 says it's 444, and Audi says it's 444. And, since each of these dyno results don't start with the same baseline, you can't directly compare the peak numbers. You have to compare the delta. As an example, using the figures above:

    - Your dyno shows a net gain of 37 hp and 43 ft lbs of torque at the wheels.

    - APR shows a net gain of 32 hp at the wheels and 72 ft lbs at the wheels. Calculations were (40 crank hp * .83) (87 crank torque * .83).

    - 034 shows a net gain of 60 hp and 57 ft lbs of torque at the wheels.

    So, if you are trying to look at results from other dynos you have to pay attention to these differences when you try to compare one with another.
    I never ask for others to post they're dyno numbers. I was only stating what mine were for reference. Perhaps you missread my post. Where in a previuos thread I had stated what the previous owner of my car mention his numbers were. And I'm not looking to compare one to the other like you are. And where did you come up with the 20% drivetrain loss. I belive it's more like 28% but then it wouldn't match you're ideal 034 base numbers. But besides all that my baseline also included the AWE Tuning AirGate Carbon Fiber Intake and ARMYTRIX Highflow Performance Race Downpipe. Possible these added the extra 51hp of powera according to your 20% draivetrain loss?

    2019 RS5
    2013 Audi S5 Estoril Blue - SOLD
    Weekend Warriors - '97 Mitsubishi 3000GT VR4 / '96 Mitsubishi 3000GT VR4 Spyder

  6. #6
    Veteran Member Four Rings
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    Downpipes don't add any power to the RS5 with stock turbos; that's why none of the big tuners is making a Stage 2 for it. The stock downpipes flow really well.

  7. #7
    Veteran Member Three Rings Dan99's Avatar
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    Quote Originally Posted by oohnoo View Post
    I never ask for others to post they're dyno numbers. I was only stating what mine were for reference. Perhaps you missread my post. Where in a previuos thread I had stated what the previous owner of my car mention his numbers were. And I'm not looking to compare one to the other like you are. And where did you come up with the 20% drivetrain loss. I belive it's more like 28% but then it wouldn't match you're ideal 034 base numbers. But besides all that my baseline also included the AWE Tuning AirGate Carbon Fiber Intake and ARMYTRIX Highflow Performance Race Downpipe. Possible these added the extra 51hp of powera according to your 20% draivetrain loss?
    I did misinterpret the intent of your post. Sorry.

    That said, consider my comments as you decide how much power your car has. Your baseline is way too high for the peak numbers to be valid.

    Regarding 20%, everything I have read over the years assigns 18% - 20% drive train loss for AWD vehicles. If you can believe 034 dyno numbers, which match Audi's numbers, the drive train loss is 19% on the car they tested. I used 20% just to keep the math simple.

    Also, I was looking at the baseline hp which you said had everything but the air intake disabled. And air intakes alone don't add any significant power. If I apply 20% to your baseline hp I get 495 at the crank. If I apply the 28% that you suggested, your baseline hp would be 528 at the crank. Neither of these numbers could possibly be correct. The stock RS5 plus an air intake could not produce 495 hp, much less the 528 if we use your numbers.

    If you are trying to match your numbers with those from someone else, you need to consider the baseline numbers. If they don't match, you can't directly compare the peak numbers.

    My intent was to be helpful, not to fight. I'm sorry it got contentious.
    Last edited by Dan99; 07-09-2022 at 04:44 AM.

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