C7.5 3.0T tune update

[agent47]

Hey guys! I talked to Mike at Eurowise who referred me over to Vivid Racing. Adam from VR has been in touch with me. I told him about the new engine and Simos 16 ECU and forwarded him my box code. He verified it and came back positive about both options - ECU flash and Piggyback tune. He stated that his ECU tuner is based in Germany and they have turned up with 420hp and 520nm figures for the ECU flash. Waiting on their numbers for the piggyback. Any thoughts from folks well versed with the CREC and tuning scene?

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[bonafyd]

Sounds promising.. I really hope Unitronic and APR get on this engine.

[agent47]

Sounds promising.. I really hope Unitronic and APR get on this engine.

I dont think they would tbh. They dont see any money coming in from the C7.5 3.0T guys. They would have given it a try if this engine came out in the new S4/5 as well but those will be getting a turbo 6. The CREC engine has been out in Europe for over 2 years now and a quick google search got me names of 3 tuners out there who offer tunes for us. Now this engine is only available in the A6/7 and Q7. None of which are the cash cows for the big tuners.

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[AY6NYC]

flash numbers are impressive, I look forward to see the piggyback

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[gazan1204]

I thought APR already released their tune for the C7.5. Last time I called they said some box codes are ready to go. Haven't had the chance to check mine, yet.

Are those crank numbers?

[agent47]

I thought APR already released their tune for the C7.5. Last time I called they said some box codes are ready to go. Haven't had the chance to check mine, yet.

Are those crank numbers?

Yeah those are crank numbers. I will get in touch with APR tomorrow and check. A couple of months ago they had nothing.

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[agent47]

Negative response from APR. Frankly speaking, I don't think any of those big name tuners will come out with anything for us. Per what I know by talking to the folks at the dealership- most C7.5 3.0T came with the new ECU but a few came with the old ECU. However, its not just the ECU that has changed. The supercharger, injectors (location) is also different. So even if the car has the previous version of ECU, the new map will be completely different.

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[psiaddict85]

Which piggyback are they using?

[agent47]

Which piggyback are they using?

They say their own VRTuned

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[psiaddict85]

They say their own VRTuned

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The have it listed for the 17 Q7 but not the A6 so technically it should be compatible. From the looks of it it's the same hardware everyone else is using.

[agent47]

The have it listed for the 17 Q7 but not the A6 so technically it should be compatible. From the looks of it it's the same hardware everyone else is using.

A couple of tuners from Germany and MRC UK have ECU flahses available.
Vivid got back to me. They are saying that the performance numbers will be pretty close on either of the option- piggyback or ecu flash.
Their tuner is based in Germany and they will send a PDA to me to hook up to the car that will capture the ecu map. I will send that to them, and they will send me a new file that will be loaded onto the ECU using that PDA. And that with the PDA I will be able to flash back to stock.
Tuning Box is of course the removable option but they said that the advantage to it is its resale and/or their ability to load a new map in case I switch cars.

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[psiaddict85]

Please update us once you have more info on the Tuning Box price, HP figures, and availability/ordering.

[gazan1204]

I would be a bummer if we don't get a good, big name, flash available to us soon. Especially considering how easy it is to swap pulleys on C7.5 (bolts vs press-on). Hopefully APR can chime in and give us some timing info. Does anyone even have a pulley available to us now?

[bhvrdr]

You can use an overdrive crank pulley.

Mike

[Dippy]

However, its not just the ECU that has changed. The supercharger, injectors (location) is also different. So even if the car has the previous version of ECU, the new map will be completely different.

The location of the fuel injectors has not changed, rather the design has added 6 more injectors.

[agent47]

The location of the fuel injectors has not changed, rather the design has added 6 more injectors.

Thats what I meant to say. Also- weren't you the one waiting for the MRC tune? I think I remember you from another forum.

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[psiaddict85]

Hopefully this VRT piggyback provides similar gains to the ABT which is claiming 410hp

[agent47]

Hopefully this VRT piggyback provides similar gains to the ABT which is claiming 410hp

Ok so I got an email from them last night. The ecu flash and piggyback numbers are veru close so expect the pigguback to give you about 410-420hp. The only big difference between the two is the speed limiter which is removed in the case of an ecu flash.

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[psiaddict85]

Ok so I got an email from them last night. The ecu flash and piggyback numbers are veru close so expect the pigguback to give you about 410-420hp. The only big difference between the two is the speed limiter which is removed in the case of an ecu flash.

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Did they give you any pricing or even ordering process since it's not on their site?

[Dippy]

Thats what I meant to say. Also- weren't you the one waiting for the MRC tune? I think I remember you from another forum.

Yes, I'm in touch with both MRC and REVO in the UK. MRC have told me that they have been working on the SIMOS 16, but as yet have not progressed as far as they wanted to (their own words). REVO has not started work, but plan to in the next few months. I believe that REVO have distributors in the US?

I really don't fancy the idea of a piggy-back tuning box which relies on the ECU detecting lean in order to add the extra fuel, which is clearly how the DTUK box (a rebranded German box) works. However I have had my S5 nearly 18 months now and I am way past ready for a tune. I really want a proper ECU remap but I guess if I lose faith that there will be one (and that may happen to me next summer) then I may well go for a piggy-back box. That's one of the reason I keen to read about such experiences from other CREC owners.

[Dippy]

Ok so I got an email from them last night. The ecu flash and piggyback numbers are veru close so expect the pigguback to give you about 410-420hp. The only big difference between the two is the speed limiter which is removed in the case of an ecu flash.

Everything I have seen indicates that an ECU flash remap can achieve better gains than a piggy-back tuning box. So this doesn't seem right to me. Also considering that the SIMOS 16 ECU needs to be hacked first and this CREC engine is only used in the C7.5 in the US, I'm having a hard time believing that VRT put the resources into it. I'm happy to be proved wrong.

[psiaddict85]

Everything I have seen indicates that an ECU flash remap can achieve better gains than a piggy-back tuning box. So this doesn't seem right to me. Also considering that the SIMOS 16 ECU needs to be hacked first and this CREC engine is only used in the C7.5 in the US, I'm having a hard time believing that VRT put the resources into it. I'm happy to be proved wrong.

The specs of the CREC motor is Europe seem to be the same so for the box I would assume it's the same map they've been using there for a while.

[Nison_Li]

http://www.mtm-online.de/en/Audi/A6-...T=m2a6333440qc
really expensive, but it has a self installation option.

[psiaddict85]

http://www.audizine.com/forum/showth...t-power-gains-)

Same motor obviously. Based on the drivetrain loss from the same original 333hp we have in the A6/A7/Q7 that puts it at 413 crank hp with the box.

[BK Motorsport]

http://www.audizine.com/forum/showth...t-power-gains-)

Same motor obviously. Based on the drivetrain loss from the same original 333hp we have in the A6/A7/Q7 that puts it at 413 crank hp with the box.

Thanks for checking out our thread on the TuningBox :)
We've had great results with the unit and the hp numbers were quite good for being on 91 octane.



We're the authorized TuningBox distributor here in the US so feel free to forward any questions to [email protected]

[gazan1204]

Negative response from APR. Frankly speaking, I don't think any of those big name tuners will come out with anything for us. Per what I know by talking to the folks at the dealership- most C7.5 3.0T came with the new ECU but a few came with the old ECU. However, its not just the ECU that has changed. The supercharger, injectors (location) is also different. So even if the car has the previous version of ECU, the new map will be completely different.

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Just called APR again and you are right, they say a few months. This FB post from them gave me some hope:

[AudiA6A5]

Ok so I got an email from them last night. The ecu flash and piggyback numbers are veru close so expect the pigguback to give you about 410-420hp. The only big difference between the two is the speed limiter which is removed in the case of an ecu flash.

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I thought stg 1 would have delivered more power based on C7 stg 1 numbers (436hp using 93)? Looks like the piggyback could be a quick low cost option. 420hp is a nice bump up from stock.


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[psiaddict85]

Any updated on any of the above options? Anyone pull the trigger?

[agent47]

I thought stg 1 would have delivered more power based on C7 stg 1 numbers (436hp using 93)? Looks like the piggyback could be a quick low cost option. 420hp is a nice bump up from stock.


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Claimed numbers vs real numbers is my question here. None of these piggyback guys are giving out customer logs/info so we can get the real numbers.

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[psiaddict85]

Claimed numbers vs real numbers is my question here. None of these piggyback guys are giving out customer logs/info so we can get the real numbers.

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Thant's too bad because they're missing the boat since there are no other options for A6/A7

[BigRoc916]

Newbie here. Any thoughts out the Unitronic tune? A shop by me in LI said they tuned a new A7 with great result.












16 A6 3.0T S line

[sciblades]

Newbie here. Any thoughts out the Unitronic tune? A shop by me in LI said they tuned a new A7 with great result.












16 A6 3.0T S line

Had unitronic for years and live it


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[RayG]

Negative response from APR. Frankly speaking, I don't think any of those big name tuners will come out with anything for us. Per what I know by talking to the folks at the dealership- most C7.5 3.0T came with the new ECU but a few came with the old ECU. However, its not just the ECU that has changed. The supercharger, injectors (location) is also different. So even if the car has the previous version of ECU, the new map will be completely different.

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The C7.5 3.0TFSI is that much different than the C7 3.0, that's interesting. I would like to read up on the differences, is there a link you may have available with this info?

[psiaddict85]

The C7.5 3.0TFSI is that much different than the C7 3.0, that's interesting. I would like to read up on the differences, is there a link you may have available with this info?

Search for CREC engine code. Mainly different heads with 6 additional injectors in the manifold I believe to help with carbon buildup. Also, the supercharges now has a clutch which disengages on the highway for better fuel economy.

[RayG]

@psiaddict85 Thanks

I guess I need to do more research, I was ready to pull the trigger on an ECU tune for my C7.5 A6 but guess APR has nothing.

[psiaddict85]

I've had a good experience with Chipwerke Pro on my SQ5 and with Audi stepping up the game with all the recent TD1 warranty denials I'm tempted to try one the mentioned piggyback boxes on the A6. Too bad BK Motorsport and VR are extremely vague about their boxes. Hard to make a decision with no real world testimonials or figured on C7.5 A6/A7. Other BK running the box on their Q7, no one else has come forward with any results.

[RayG]

I guess I am a bit confused, is there any full ECU tunes available for the C7.5 A6 3.0?

or are piggyback tunes the only thing available?

[BigRoc916]

Had unitronic for years and live it


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Thx sciblades. I think I'm going to try it out

[bhvrdr]

I guess I am a bit confused, is there any full ECU tunes available for the C7.5 A6 3.0?

or are piggyback tunes the only thing available?

None.

[Dippy]

6 additional injectors in the manifold I believe to help with carbon buildup

Hopefully they do but I was under the impression that their purpose is to help reduce exhausts particulates in order to meet the EU6 emission standard.

I'm still hopeful that at least one tuner will crack the SIMOS 16 ECU (and I have to be since I too have the CREC engine). REVO already told me that they plan to and I think they have US distributors. I didn't think APR would but now that they are launching their "ultracharger" maybe its back on the table since although the C7.5 market may be small, if they get enough customers to go for the full ultracharger option it will help pay for the R&D.

Nevertheless advice to potential buyers has to be - if you want tunable, don't buy a C7.5.