B8 stage 2 dyno numbers

[sagula96pl]

So i recently had a supercharger pulley installed along with a custom dyno tune from a local tuner and in all honesty im not too impressed with it. My car made 325 hp and 313 tq on a mustang dyno. For some reason these numbers seem low and i would like to seem what everyone else made on their stage 2. My car is all stock with the exception of supercharger pulley and and tune. Stock exhaust

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2013 s4 by the way

[importraceram]

That is very low for stage two...figure 360-380 but of course all depends on conditions (DA), dyno type, manual vs dsg, etc.

[sagula96pl]

Mine is the dsg trans. So what youre saying i should be making at least 360?

[TSherk]

Mustang dyno’s are notorious for reading low, I always hear them called heart break dyno.
I bet that’s atleast 10% lower than a typical dyno jet.

I’d suggest look for a local dyno jet and try a few runs

[sagula96pl]

Yes i hear they read 10 to 15% lower. But the thing is before i went stage 2 i saw people saying how much of a difference it gives the car and i just dont see it. It might be because i previously had a subaru with some work done to it but overall i expected more from the stage 2.

[Moogas1]

Mustang dyno’s are notorious for reading low, I always hear them called heart break dyno.
I bet that’s atleast 10% lower than a typical dyno jet.

I’d suggest look for a local dyno jet and try a few runs

Try 20%, on 93 file dual pulley, Mustang Dyno 401whp Dynojet 483whp. That’s my experience, at least...


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[sagula96pl]

What other mods did you get to hit 483?

[Ford Prefect]

So i recently had a supercharger pulley installed along with a custom dyno tune from a local tuner and in all honesty im not too impressed with it. My car made 325 hp and 313 tq on a mustang dyno. For some reason these numbers seem low and i would like to seem what everyone else made on their stage 2. My car is all stock with the exception of supercharger pulley and and tune. Stock exhaust

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2013 s4 by the way

I think this may be your issue, why not go with one of the reputable tuners we already have for our cars? Are you saying you don't notice a seat of the pants difference? My EPL stage 2 is down right impressive, I can't fathom going DP but of course I will once cooling is complete.

[viperbenz1]

Got her on mustang dyno today ,she put down 372whp apr stage2 dual pulley 6MT




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[sagula96pl]

Got her on mustang dyno today ,she put down 372whp apr stage2 dual pulley 6MT




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Any othe mods besides dual pulley?

[Fourpoint282]

Mustang dyno’s are notorious for reading low, I always hear them called heart break dyno.
I bet that’s atleast 10% lower than a typical dyno jet.

I’d suggest look for a local dyno jet and try a few runs

Actually the mustang Dyno is more accurate. Why? Because the MD accounts for load which simulates drag that you would experience in real world. DynoJet doesnt. Personally I think the OP did the right thing by using MD. Everyone wants to hear the higher number simply by it sounds better but the truth is the truth whether you want to believe it or not.

This is coming from someone who has put their car on both.


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[viperbenz1]

Any othe mods besides dual pulley?

Apr cps and milltek exhaust with non res down pipes


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[Fourpoint282]

And another thought...how is S4 making 400whp, that’s like 500+ to the crank. Is that for real? The b8 S4 is a supercharged v6, right?


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[jimrobbington]

I think this may be your issue, why not go with one of the reputable tuners we already have for our cars? Are you saying you don't notice a seat of the pants difference? My EPL stage 2 is down right impressive, I can't fathom going DP but of course I will once cooling is complete.

I agree, just because a tune is custom, doesn't mean it's good. I would also say that you shouldn't judge your car by it's dyno figures, but it sounds like you are unimpressed by it's street performance also. Pretty sure APR and REVO offer test flashes, maybe try one to compare.

And another thought...how is S4 making 400whp, that’s like 500+ to the crank. Is that for real? The b8 S4 is a supercharged v6, right?


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Just a stage 1 file can put it at 450 CHP. There's a lot of headroom on this platform. Many dual pulley folks have dynod well over 400whp.

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[Fourpoint282]

I agree, just because a tune is custom, doesn't mean it's good. I would also say that you shouldn't judge your car by it's dyno figures, but it sounds like you are unimpressed by it's street performance also. Pretty sure APR and REVO offer test flashes, maybe try one to compare. Just a stage 1 file can put it at 450 CHP. There's a lot of headroom on this platform. Many dual pulley folks have dynod well over 400whp.

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Guess I’m just a jealous NA v8 guy. I spent 4K on down pipes, cat back and custom tune and only got 27whp and 35wtq....I got that sound though ;)


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[jimrobbington]

Guess I’m just a jealous NA v8 guy. I spent 4K on down pipes, cat back and custom tune and only got 27whp and 35wtq....I got that sound though ;)


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Haha, yeah. I live at elevation and will never own an NA car. I recall several years back a REVO stage 1 B7 RS4 dynoed like 280 something whp lol

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[waxxonMTL]

Yes i hear they read 10 to 15% lower. But the thing is before i went stage 2 i saw people saying how much of a difference it gives the car and i just dont see it. It might be because i previously had a subaru with some work done to it but overall i expected more from the stage 2.

yeah bot the ''people'' go with proven tune. you went custom.. so i guess if you pick one of the OTS tune, you will like it too ;)

[sagula96pl]

Like i said maybe i just had too high expectation for the car. I guess what im asking is if 59hp and 49tq gain are your normal average gains for the sc pulley and tune ? My baseline was 266whp/264wtq and after the tune it hit 325/313

[jimrobbington]

Like i said maybe i just had too high expectation for the car. I guess what im asking is if 59hp and 49tq gain are your normal average gains for the sc pulley and tune ? My baseline was 266whp/264wtq and after the tune it hit 325/313

No, that sounds low for going from stock to stage 2.

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[miztahsparklez]

I had something similar... But much lower. Was pretty sad. I was on APR 91 tune. At best low 300s. My base was around yours.

034 stage 2 got me up to 330whp.

DP I am not sure, but it is much faster now.

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[sagula96pl]

I had something similar... But much lower. Was pretty sad. I was on APR 91 tune. At best low 300s. My base was around yours.

034 stage 2 got me up to 330whp.

DP I am not sure, but it is much faster now.

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Which dyno did you make these numbers on?

[miztahsparklez]

Which dyno did you make these numbers on?

Mustang

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[bhvrdr]

As an FYI, Mustang dynos (like all others) can read all over the place. Sure there are people that like to call it the "heartbreaker" but in reality they can read high as hell too depending on setup.

OP, before you run around town hopping on other dynos that you have no baseline from... see if you can ask the owner about other dyno runs he has in his database from stock cars. You may get a better idea how that dyno reads. Also you mentioned your car has a custom tune so there should unquestionnably be several baseline dyno runs and tuned runs available to you from your own car. If your car baselined at 240whp... well there ya go.

The best thing to do though would just be to have someone log your car and then spend 20 bucks (instead of 100 bucks on a dyno) at you local 1/4 mile track. Those things will help you know exactly where you are.

You may be making crap for power or not. you need more data first to be more certain where your car currently stands.

Mike

[AvusPdx]

As an FYI, Mustang dynos (like all others) can read all over the place. Sure there are people that like to call it the "heartbreaker" but in reality they can read high as hell too depending on setup.

OP, before you run around town hopping on other dynos that you have no baseline from... see if you can ask the owner about other dyno runs he has in his database from stock cars. You may get a better idea how that dyno reads. Also you mentioned your car has a custom tune so there should unquestionnably be several baseline dyno runs and tuned runs available to you from your own car. If your car baselined at 240whp... well there ya go.

The best thing to do though would just be to have someone log your car and then spend 20 bucks (instead of 100 bucks on a dyno) at you local 1/4 mile track. Those things will help you know exactly where you are.

You may be making crap for power or not. you need more data first to be more certain where your car currently stands.

Mike

This. Dyno's are only accurate if you have a baseline, upgrade, re-dyno in similar weather conditions with same fuel, and calculate the delta.
Other stock car dyno sheets can be helpful, but each cars vary in power output quite a bit.

Oh, and tires make a difference as well (snow tires can sap about 10% whp on the dyno).
Transmissions can affect whp as well
Type of fuel will affect the whp greatly
Weather
How adapted your tune is (need multiple pulls without getting heat soaked to see what the engine likes)

Its a rough dick size measurement at best.

[Moogas1]

As an FYI, Mustang dynos (like all others) can read all over the place. Sure there are people that like to call it the "heartbreaker" but in reality they can read high as hell too depending on setup.

OP, before you run around town hopping on other dynos that you have no baseline from... see if you can ask the owner about other dyno runs he has in his database from stock cars. You may get a better idea how that dyno reads. Also you mentioned your car has a custom tune so there should unquestionnably be several baseline dyno runs and tuned runs available to you from your own car. If your car baselined at 240whp... well there ya go.

The best thing to do though would just be to have someone log your car and then spend 20 bucks (instead of 100 bucks on a dyno) at you local 1/4 mile track. Those things will help you know exactly where you are.

You may be making crap for power or not. you need more data first to be more certain where your car currently stands.

Mike

This...!


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