Adding APR Crank to existing Stage II setup - do I need new APR SW?

[rattler555]

Cheers Everyone. I'm in the process of preparing for a WP replacement and taking the opportunity to do other preventative maintenance (t-stat, super changer oil change, etc). One of the other items is adding an APR hard Crank 187 to my existing stage II setup. I went stage II a while back and have the associated SW from APR. Does anyone know If I need new code to run the dual-pulley setup?

Thanks in advance for any input.

Peace

[Morritse]

Get a completely new crank pulley, not overdrive ring. OEM crank pulley will fail. Also, yes you need a DP tune to take advantage.

[jimrobbington]

You don't have to have dual pulley software to run dual pulley. Of course you won't see much benefit without it though.

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[bhvrdr]

Disregard the above ;)

Apr uses the same file for stage 2 as they do for dual pulley. The boost request is up there around 2450 iirc. Their file changes when you add the uc.

Mike

[wangshuo1989]

What he said^^, APR's stage 2 software auto adapts to your pulley ratio including DP. So their price for DP is actually quite good

[rattler555]

Get a completely new crank pulley, not overdrive ring. OEM crank pulley will fail. Also, yes you need a DP tune to take advantage.

Any recommendations on a full crank? ~187?

[Morritse]

Any recommendations on a full crank? ~187?CTS have been selling for ~300 lately. I'd go with that. Look on eBay

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[jimrobbington]

Any recommendations on a full crank? ~187?APR claims their solution is unaffected by the failing crank, but I would probably want less weight, not more weight.

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[Morritse]

How does that make any sense? Is it that it is anchored to the inner piece? Thereby not creating tortsion between the 2 parts of the OEM pulley?
APR claims their solution is unaffected by the failing crank, but I would probably want less weight, not more weight.

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[bhvrdr]

How does that make any sense? Is it that it is anchored to the inner piece? Thereby not creating tortsion between the 2 parts of the OEM pulley?

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Its bolted to the center inner and the ring itself surrounds and covers the outer holding it in place id guess from looking at the design

[Morritse]

Its bolted to the center inner and the ring itself surrounds and covers the outer holding it in place id guess from looking at the designOk. That makes sense. I didn't realize the OEM pulley failed in this manner. That's being said. I still wouldn't go for the APR one. It requires service position to install, isn't cheaper, and at the end of the day, it's not a pulley, it's harder to sell, and therefore change your crank pulley size.

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[bhvrdr]

Ok. That makes sense. I didn't realize the OEM pulley failed in this manner. That's being said. I still wouldn't go for the APR one. It requires service position to install, isn't cheaper, and at the end of the day, it's not a pulley, it's harder to sell, and therefore change your crank pulley size.

Sent from my ONEPLUS A6003 using TapatalkIm not 100% thats its the best way either. Id think it can still at least degrade and not perform perfectly on the accesory side even if the ring prevents it from separating and bouncing around the front of the engine. I dont know though. Ill defer to someone else who knows more about it

Mike

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[rattler555]

Im not 100% thats its the best way either. Id think it can still at least degrade and not perform perfectly on the accesory side even if the ring prevents it from separating and bouncing around the front of the engine. I dont know though. Ill defer to someone else who knows more about it

Mike

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Thanks for all of the input. Going with CTS full crank replacement @ 187. Looks like the belt will work too as their SC pulley is the same size as APR's.

[bhvrdr]

Thanks for all of the input. Going with CTS full crank replacement @ 187. Looks like the belt will work too as their SC pulley is the same size as APR's.Right on. That's what id do

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[Morritse]

Thanks for all of the input. Going with CTS full crank replacement @ 187. Looks like the belt will work too as their SC pulley is the same size as APR's.

Offer $330 for the one on eBay I think they take 330

[Acejam]

As others have stated, APR uses the same "Stage 2" file for both single and dual pulley cars. If you add the Ultracharger, that requires a separate file.

I also wanted to avoid the OEM crank pulley and their adapter. I ended up going with the JHM 187 crank pulley and fitment was perfect. https://jhmotorsports.com/jhm-hd-overdrive-187mm-lightweight-supercharger-crank-pulley-for-b8-b8-5-s4-s5-c6-c7-a6-a7-and-b8-q5-sq5-3-0t-fsi.html

The CTS setup is nearly identical and it should work great too. The new Kustom Imports pulleys also looks great.

[Loe]

it's going to be dependent on which version of software you have, the older v.2 files don't support dual-pulley levels of boost.

[Ford Prefect]

Disregard the above ;)

Apr uses the same file for stage 2 as they do for dual pulley. The boost request is up there around 2450 iirc. Their file changes when you add the uc.

Mike

[emoji23] man, does this read familiar??

But since OP’s question is answered, anyone have data on other tuners? I checked my logs and requested boost was significantly higher than actual at stage 2 (57mm sc pulley). I recall 8-10psi.

Anyone else stage 2 see a huge difference?


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[jimrobbington]

[emoji23] man, does this read familiar??

But since OP’s question is answered, anyone have data on other tuners? I checked my logs and requested boost was significantly higher than actual at stage 2 (57mm sc pulley). I recall 8-10psi.

Anyone else stage 2 see a huge difference?


Sent from my iPhone using Audizine (http://r.tapatalk.com/byo?rid=87676)I tossed a 179mm crank on with 034 stage 2 software and noticed a rather big difference. However, i'm at 6700' elevation, so I can't attest one would see a similar benefit at sea level. Hopefully flashing the dual pulley file tonight or tomorrow.

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[Morritse]

[emoji23] man, does this read familiar??

But since OP’s question is answered, anyone have data on other tuners? I checked my logs and requested boost was significantly higher than actual at stage 2 (57mm sc pulley). I recall 8-10psi.

Anyone else stage 2 see a huge difference?


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What was your actual boost? And at what elevation? If it's requesting dual pulley boost levels than sure it could make sense.

[Ford Prefect]

What was your actual boost? And at what elevation? If it's requesting dual pulley boost levels than sure it could make sense.

I’m seeing 23-24 psi request with an actual of 15-16. The maxes of 24/16 are rare.


I’m a few hundred feet above sea level at best.

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[Morritse]

I’m seeing 23-24 psi request with an actual of 15-16. The maxes of 24/16 are rare.


I’m a few hundred feet above sea level at best.

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That sounds completely fine. 23-24 is a typical request for a dual pulley setup and 15-16 PSI is totally fine actual boost for single pulley

[Ford Prefect]

That sounds completely fine. 23-24 is a typical request for a dual pulley setup and 15-16 PSI is totally fine actual boost for single pulley

Awesome thanks. I checked another log and it was 1-2 psi lower on requested and actual, guessing that’s due to the conditions of the day.


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[Skyler@Achtuning]

You'll likely want to upgrade your cooling system (APR CPS or similar) with dual pulley, IATs get pretty high very quickly.

We have the CPS on the shelf if anyone is interested:

APR MS100127 APR COOLANT PERFORMANCE SYSTEM AUDI (https://www.achtuning.com/apr-ms100127-apr-coolant-performance-system-audi/)