New A4 Quarter Mile Record: [email protected] MPH (APR Stage 3)

[Arin@APR]

On Sunday, January 24th, we headed to Montgomery Motorsport Park to test our upcoming APR Stage III EFR6758 Turbocharger System in the quarter mile. The car was driven to the track in its currently daily driven form, on street tires, with 93 octane fuel and a full interior, in an effort to show real world results most customers will experience on a day-to-day basis. Several passes were conducted, resulting in record breaking pass after record breaking pass. Ultimately, Trevor@APR, the owner of the vehicle, was able to achieve a [email protected] MPH after cutting a 1.733 60 FT time!

The fueling system was unmodified, resulting in power limitations below the capabilities of the turbocharger system. Temperature at the track during the record pass was roughly 50F, resulting in a density altitude of roughly -575 feet. Unfortunately, the negative density attitude did not result in a sizable performance benefit compared to running in warmer conditions due the fueling system limitations. However, beneficial to APR customers in warmer climates, the above results are still applicable.

As temperature drops and air density increases, so does the need for more fuel to satisfied the air fuel ratios prescribed by APR’s calibration experts. To safely prevent the engine from running out of fuel in cooler conditions, APR’s calibration experts have calibrated the ECU to reduce boost pressure while targeting the same power levels. Conversely, during hotter conditions, the ECU increase boost pressure to make up for the loss in air density, ultimately resulting in the similar power output in a wide range of ambient conditions.

Currently the turbocharger system slated for release in the coming months, which will include full details such as price, power figures, components, application guides, requirements and recommendations. The B8.5 platform, including flex fuel models, is also in development and on employee vehicles at APR and will be releasing around the same time. Fueling upgrades for higher output are being explored.

Vehicle Details
-2010 Audi A4 (B8)
- 2.0 TFSI EA888 Gen 2 engine
- 6 Speed manual transmission with upgraded clutch and single mass flywheel
- APR EFR6758 Turbocharger System
- APR Stage 3 ECU Upgrade, 93 octane
- APR Intercooler
- APR Downpipe with 300 cell catalyst
- APR Catback Exhaust
- APR Carbon Fiber Intake System
- OEM 19” wheels with Michelin PSS street tires
- Full weight (~4,000 LBS with driver and half tank of fuel)
- Coilover suspension (unmodified from daily street driving setup)
- Larger front and rear brakes
- Stock engine internals
- Stock fueling system
- Employee owned and daily driven with 90,000 mile

Go APR!

[The Infiltrator]

Oh man that's nice! I can't wait to see what an upgraded fuel system would do.

I have a 6 speed AT and this makes me wish I had a MT.

[Smellie]

Impressive!

Hopefully it'll break into the 11's with a better fueling system

[mahunik]

Would a full decat instead of the 300 cell make a difference enough to add on a few more PSI? Could maybe help shave off a half second perhaps.

[Arin@APR]

We've seen no difference in power with this cat, compared to no cat, till a bit above 500 HP.

[kailuaboy]

Thats Awesome.....11's with fuel for sure. Sign me up.

[Arin@APR]

Hopefully it'll break into the 11's with a better fueling system

I'm sure 11's are possible, even as the car sits. A little weight loss from a lighter driver, and less fuel in the tank may get it there.

I'm betting a ZF 8 speed transmission or DSG in europe should be able to do it, all else the same.

A reduction in 60 foot with better tires, would probably get you there.

Better "track" setup as far as suspension, tire pressure, etc, may do it.

Higher octane may do it. We ran 93.

Lastly, weight reduction should get you there (Maybe even with just smaller brakes --- this car had big brakes on the front and rear).

[kailuaboy]

I'm sure 11's are possible, even as the car sits. A little weight loss from a lighter driver, and less fuel in the tank may get it there.

I'm betting a ZF 8 speed transmission or DSG in europe should be able to do it, all else the same.

A reduction in 60 foot with better tires, would probably get you there.

Better "track" setup as far as suspension, tire pressure, etc, may do it.

Higher octane may do it. We ran 93.

Lastly, weight reduction should get you there (Maybe even with just smaller brakes --- this car had big brakes on the front and rear).

Looking forward to eating some unsuspecting American V8's.....Im not a patient person so this is gonna be hard waiting for it.

[hyperunion]

Hats off arin.... Impressive time!!... Results I've been asking.. I'm sure zfhp8 will be faster
Any word on intercooler release?

[NLPed68]

Awesome!!! I'm in for one of these too.

[lostkeyz]

Arin, will the ecu be tune for launch control in the 6mt. Looks like it from the video.

Sent from my SAMSUNG-SGH-I537 using Tapatalk

[wyld]

would love to see that torque curve overlayed on the stock turbo stage 2+ graph. Are the gains across the whole band? Is the best no compromises turbo for the B8?

[Arin@APR]

Any word on intercooler release?

Production is welding them up now. We're not releasing till they have the quantity we forecasted necessary at the release. I anticipate that will be filled very shortly.

- - - Updated - - -

Arin, will the ecu be tune for launch control in the 6mt. Looks like it from the video.

That's the standing limiter with our motorsport hard limiter cut. You'll get it.

- - - Updated - - -

would love to see that torque curve overlayed on the stock turbo stage 2+ graph. Are the gains across the whole band? Is the best no compromises turbo for the B8?

When we launch the product, I'll give you a good bit of detailed data.

[ptper]

The car was driven to the track in its currently daily driven form, on street tires, with 93 octane fuel and a full interior, in an effort to show real world results most customers will experience on a day-to-day basis.

Good call.

[adamazing]

Good call.

Yeah, especially how well the reception to the S4 Stage 3 drag results were received by you guys, lol.

[kailuaboy]

would love to see that torque curve overlayed on the stock turbo stage 2+ graph. Are the gains across the whole band? Is the best no compromises turbo for the B8?

from the graphs that were cobbled together in the 30+ pages of the stage 3 thread it looks like it may be a bit under stock or stage 1 in the first few thousand rpm and then goes way up for the rest of the power band but thats just a best guess given that the graphs had no scale and just some ms paint lines on them. Im interested to see what the final curves look like .

[ptper]

Yeah, especially how well the reception to the S4 Stage 3 drag results were received by you guys, lol.

Yea, but I'm sure Arin will tell you that it was not their call to gut the car...they only provided the software. Always good to see tuners extend the platforms. Just need to do the cost-benefit analysis. Sorry, I have no idea, but what does a stage 2 B8 A4 run right now?

[Arin@APR]

Yea, but I'm sure Arin will tell you that it was not their call to gut the car...they only provided the software.

Yeah, it wasn't our product so we didn't care about anything other than the record. I'm sure everyone is well aware of the data I share when I release products we sell.

[Arin@APR]

Our calibrators spent a long time doing accurate torque reporting within the ECU. With the work done, it allows for easy control over output. We can limit it wherever we see fit.

[ptper]

Yeah, it wasn't our product so we didn't care about anything other than the record. I'm sure everyone is well aware of the data I share when I release products we sell.

That's cool. Not trying to muck up your thread, so I'll show myself out.

[homelessNY_LI]

I hate to be the downer but why do we need a new thread for this? There is one started in September which was given the same information

[shaunm82]

Yea, but I'm sure Arin will tell you that it was not their call to gut the car...they only provided the software. Always good to see tuners extend the platforms. Just need to do the cost-benefit analysis. Sorry, I have no idea, but what does a stage 2 B8 A4 run right now?

I'd say low 13s, Maybe 13.1-13.3 range on a good day. Average maybe mid 13s.

[zcspec]

I applaud APR for putting in the R&D for the ERF kit. I like many, look forward to the completion and release of this kit. As wonderful is the 1/4 ET time, what has impressed me most thus far, is the trap-speed which the APR's setup makes. 115mph+, you're entering into some very exclusive territory; IE, M3/4, 911, DB7/8 just to name a few. From what Arin has mentioned, it seems as those this kit to go faster with the additional fuel. Keep on plugging away APR.

[ptper]

I'd say low 13s, Maybe 13.1-13.3 range on a good day. Average maybe mid 13s.

Thanks. I guess cost will be key!

[demonmk2]

Wow! Very impressive

[B44]

Will this be reliable on a 2009 b8 with 6 speed automatic trans?

[B7AudiSline]

Well done, I think you can squeeze a high 11 sec pass.......

[2010b8a4apr2]

Arin- Thank you for a tease. This is awesome. Def MK5 Golf R Stage 3/MK6 Golf R/S3 Stage1/2 Territory. Extremely happy. I'm sure we will see 11's someday. Especially since Golf R stage 3 kits have fuel upgrades. Not sure what you guys recorded for K04 upgrade but I've seen mid to upper 12s, So if we can shave a second off that, that's awesome. No 10 sec car, but still out of a 4 cyl, amazing. Cant wait to see pics......

[Jacon]

This is shy of amazing. This is a heavy car and to get that much power from a 2.0 is nothing short of astonishing!

I'd be really proud to have a set up like this and it adds a 'dagree' of advancement for those wanting to add fuel. This can get to 11s.

[poweredbyaudi7]

For comparison to the fastest 6MT S4s...

YYMMDD - Time@MPH      - 60FT -  DA FT -Trans- Tune           - Fuel       - User           - Cert - Time Slip - Video
140223 - [email protected] - 1.74 -   -210 - 6MT - GIAC S2  104 - 104 AKI      - Auditude2.0T    - NHRA - NO TIME SLIP
151117 - [email protected] - 1.75 -   -800 - 6MT - Uni  S2+ E85 -  93 AKI E85  - DGVR6           - NHRA - Slip
130309 - [email protected] - 1.82 -        - 6MT - REVO S1  100 - 110 AKI      - El Romano       - IHRA - Slip
130325 - [email protected] - 1.79 -        - 6MT - GIAC S2   93 -  93 AKI      - Auditude2.0T   - NHRA - Slip
160124 - [email protected] – 1.733   -575   -6MT  -APR  S3   93 -  93 AKI       -APR                     
141024 - [email protected] - 1.78    +150  - 6MT - GIAC S2   93 -  93 AKI      - d.p            - NHRA - Slip

[blbroo]

For comparison to the fastest 6MT S4s...

YYMMDD - Time@MPH      - 60FT -  DA FT -Trans- Tune           - Fuel       - User           - Cert - Time Slip - Video
140223 - [email protected] - 1.74 -   -210 - 6MT - GIAC S2  104 - 104 AKI      - Auditude2.0T    - NHRA - NO TIME SLIP
151117 - [email protected] - 1.75 -   -800 - 6MT - Uni  S2+ E85 -  93 AKI E85  - DGVR6           - NHRA - Slip
130309 - [email protected] - 1.82 -        - 6MT - REVO S1  100 - 110 AKI      - El Romano       - IHRA - Slip
130325 - [email protected] - 1.79 -        - 6MT - GIAC S2   93 -  93 AKI      - Auditude2.0T   - NHRA - Slip
160124 - [email protected] – 1.733   -575   -6MT  -APR  S3   93 -  93 AKI       -APR                     
141024 - [email protected] - 1.78    +150  - 6MT - GIAC S2   93 -  93 AKI      - d.p            - NHRA - Slip

And nearly identical on 93 octane. The better times are 104 and E85.

Sounds like he pegged the rev limiter then popped the clutch? If I try to launch my stock clutch, I spin it through 2nd gear (learned that once and haven't tried a hard launch again).

[poweredbyaudi7]

And nearly identical on 93 octane. The better times are 104 and E85.

Indeed. This is really getting me pretty excited about it all. Interested to see numbers and potentially the other times ran...

[Arin@APR]

Will this be reliable on a 2009 b8 with 6 speed automatic trans?

We haven't tested the 6 speed automatic trans. We can, however, limit peak torque.

[The Infiltrator]

We haven't tested the 6 speed automatic trans. We can, however, limit peak torque.

This, it has me wondering how much torque we will lose.

[homelessNY_LI]

This, it has me wondering how much torque we will lose.

Putting the cart way before the horse. They aren't even releasing offical specs

[KompressorLOgic]

impressive! yeah ive got the 6at too.... curious what the power figure for it ends up being

[The Infiltrator]

Putting the cart way before the horse. They aren't even releasing offical specs

Yeah well, I don't think it would be much but we will see.

[homelessNY_LI]

Yeah well, I don't think it would be much but we will see.

I agree but let's see what it is when they give offical information hopefully in the next month or so

[The Infiltrator]

I agree but let's see what it is when they give offical information hopefully in the next month or so

What I really want to see is the price with tune, EFR, fuel injectors, and pump. Plus I plan on getting a different intake manifold. This is going to be an expensive upgrade and I can't wait to see the numbers from APR. Searching around still for the best price and power.

[homelessNY_LI]

What I really want to see is the price with tune, EFR, fuel injectors, and pump. Plus I plan on getting a different intake manifold. This is going to be an expensive upgrade and I can't wait to see the numbers from APR. Searching around still for the best price and power.

Maybe we will get lucky and it will be out for November and we can get black friday pricing lol