BNR S3 without tune

[MPS_Fan]

Since the guys in europe still have no tuning solution for gen2 I have a question. I ordered a BNR S3 and wanted to install it. The plan was to run it only with WGA spring pressure which should be about 14psi until support will be available. Will I reach the stock tune load limiters? I have a AP here but it's useless ATM(no support yet). What do you think? Could any damage occurs to engine with this setup?

[Lex]

You may reach load cut unless the ECU closes the throttle enough since the BNR is a lot more efficient at 14psi redline than the stock turbo and the ECU at that time is pulling WGDC and throttle.

[JDW1]

Why if you had an AP couldn't you get @Lex here to tune it for you?

[MPS_Fan]

I can tune myself but AP does not support EU cars ATM.

[Lex]

There are some other tricks you can do to play with the MAF sensor and/or the MAF housing .... Standback anyone?

[MPS_Fan]

Yeah I could use bigger MAF. My g/s readings will be less. But this will also lead to high fuel trims and also lean WOT AFR. So no way. That sucks so much that we have no way to tune
Driving a Pu in Europe=fail.

[StayBroke]

Maybe a us ecu?

[Mchart]

I'd just wait.

Random ass-pulled guess sense says that Cobb will be adding EU support by the end of the year.

IMO it makes no sense to go BT without being able to get rid of the stock load cap.

[MPS_Fan]

Was thinking about that. But found no genpu ecu on eBay. Also Cobb is working on support. But no ETA.
The conclusion is: i can use BNR s3 with stock tune and spring pressure without being worried about engine damage. Right?

[Lex]

Depends how much bigger. The gen2 adjusts AFRs under WOT (yes, yes it does) up to 10-15% unlike the gen1. Also, 10-15% LTFTs are fine.

I am not condoning not tuning, just letting you know what your options are in case you go ahead.

[MPS_Fan]

Damn, you US guys are so lucky...
I have to think about swapping turbo before EU AP support. Driving a car where you can't go WOT isn't something I want to have... can somebody post a graph of the load limiter tables from stock tune? Would like to know if the limiter values are also tappering down on high rpm.

[SarcasticOne]

Versa tune?

Sent from my Galaxy Nexus using Tapatalk 2

[MPS_Fan]

Originally Posted by SarcasticOne Versa tune? Sent from my Galaxy Nexus using Tapatalk 2

No PU Support! And no ETA for that. One more time EU Pu suxxxxxxx!

[Macncheese]

Originally Posted by MPS_Fan No PU Support! And no ETA for that. One more time EU Pu suxxxxxxx!

'Merica... Fuck Yeah

[DiGi Faggot]

Originally Posted by MPS_Fan Was thinking about that. But found no genpu ecu on eBay. Also Cobb is working on support. But no ETA. The conclusion is: i can use BNR s3 with stock tune and spring pressure without being worried about engine damage. Right?

You could always put a WTB in the FS Section. I'm sure someone somewhere has a PU US ECU and would be happy to get it to you.

[SarcasticOne]

Originally Posted by MPS_Fan No PU Support! And no ETA for that. One more time EU Pu suxxxxxxx!

Hopefully Getting there
Down under we got lucky with access port for gen 2's
Know there is a few people keen for VT tho

[Lex]

I know VT gen2 is in the works but don't know ETA.

[Mchart]

Originally Posted by MPS_Fan Damn, you US guys are so lucky... I have to think about swapping turbo before EU AP support. Driving a car where you can't go WOT isn't something I want to have... can somebody post a graph of the load limiter tables from stock tune? Would like to know if the limiter values are also tappering down on high rpm.

Cobb Stage 1 91 Octane maps have a load cap of 1.81. (I forget what stock is) With a BT you'll easily be going over 2 for much of the power band.

I imagine running BT with stock tune to be similar to being a shaken baby.

[MPS_Fan]

Originally Posted by Mchart Cobb Stage 1 91 Octane maps have a load cap of 1.81. (I forget what stock is) With a BT you'll easily be going over 2 for much of the power band. I imagine running BT with stock tune to be similar to being a shaken baby.

I was talking about running it only from spring pressure, wiChat should be about 14psi. So you think I will be over 1.8 load?

And is the load cap a fixed value or dynamic? ( vs. Rpm)

[Mchart]

14PSI through a BNR S3 is substantially more flow then 14PSI through a K04.

I have no idea what sort of load you'd hit with stock tune and the S3, but I do imagine you going over the stock caps for most of the power band. Even more so up top.

[86AmishMs3]

You might be fine, might not. Only one way to find out. I think you'll be fine at low boost levels.

[v8killer]

any update on this? very curious how it went

[MPS_Fan]

Turbo is on the way to me. Shipping takes up to 4 weeks to germany

[AndyT]

The UK has a few tuning options now though quite as good as AP. Some using mazda edit and others ecutek.

To the OP, you could go to the same place i did, he uses ecutek and now they've released the proecu kit he can map your car remotely so even though you're in a different country he can still map the BNR 3. The kit also allows you to log like the AP.
I have what is essentially the same as a BNR 1 and have had 20k happy miles, the tuner has also had plenty of articles in the motoring press and knows his stuff.

[MPS_Fan]

Sounds nice, but me and many others want to selftune their car. So ecutek is no option. I would only let tune my car by people who are specialized to our platform like atvfreek, lex and many other tuner here in the forums.
Cobb wrote that they are analyzing the last region in EU. So it seems we will get AP support soon. Also I already have an AP here
Ecutek is available for a long time here in Germany, but nobody wants it. We don't like the company policy like they handle with private users. If you write them a mail you won't get an answer. Also you have to pay lot of $$$ for their tune. This is no option, we want to have full control over tune and correct some parameters if something is wrong.

[AndyT]

Would be good to get AP support here, versatune isn't too far away either.

[MPS_Fan]

Versatune is good shit, but also not as comfortable as Cobb, because you have no standalone device which provides everything you need. Taking everytime the notebook if you only want to change map is fag....

[Mchart]

Originally Posted by AndyT The UK has a few tuning options now though quite as good as AP. Some using mazda edit and others ecutek. To the OP, you could go to the same place i did, he uses ecutek and now they've released the proecu kit he can map your car remotely so even though you're in a different country he can still map the BNR 3. The kit also allows you to log like the AP. I have what is essentially the same as a BNR 1 and have had 20k happy miles, the tuner has also had plenty of articles in the motoring press and knows his stuff.

ECUTek is about the only option if one can't wait.

I can't reccomend it though considering euro/UK AP support will be out by the end of the year.

The horrible part about ECUTek is that the reflash changes the encryption on the ECU. So once you have an ECUTek tune you are fucked if you want to just start using an Accessport or Versatune.

And frankly, the AP is the best tuning solution. Having to wait on someone else to tune your car is bullshit.

[p057]

Originally Posted by Mchart I'd just wait. Random ass-pulled guess sense says that Cobb will be adding EU support by the end of the year. IMO it makes no sense to go BT without being able to get rid of the stock load cap.

I'm sorry for sounding like a dick for saying it, but why upgrade the car significantly, knowing that without tuning you're running into higher risks?

can't you just wait? I know it's 'unfair' for me to say it because I do have support, but I honestly felt if I were in your shoes, i'd just wait it out. much better than spending all this money to end up blowing up on the side of the road just before cobb releases the euro-AP.

[MPS_Fan]

I will do the swap with a friend(car machanic). He isn't available all the time. He has only next week time, because he is on vacation. So I have to do this job next week. I could swap the turbo also by myself but it will be pain in ass without lift and proper tools. I can't see any risks in driving without tune just from spring pressure. Stock tune is rich as hell and timing is far away from its limits. The only thing that could happen is fuel cut. And I will not go wot till tune:thumbup:

[Lex]

AT 14psi you're likely to get load cut with the stock tune. 14psi at redline from a BNR S3 is a lot more than the stock tune allows for and it will try lowering boost to no avail.

[MPS_Fan]

That's the reason why I will avoid wot and redline. Also I never reached rev limiter on my k04 before. So everything will be fine

[MPS_Fan]

Ok, Turbo is now in my car. It runs great without tune. AFR, Boost, KR looks absolutely fine. Like Lex said, the ECU tries to reduce Load with the Throttle plate on higher RPMs. I also tried some wot runs, AFR is rich like it should be on stock tune. I reach 248g/s just from spring pressure in 3rd gear at 5500rpm, then i get fuel cut. The ECU is doing great job, never thought it can correct that fast AFR, Boost and so on with a different turbo.

[allservice]

N

[Djohns]

Originally Posted by allservice How did you setup the OEM EBCS. Or did you use another setup? With OEM tune? I am in the same boat, my 2nd K04 is about to die, I am using Hypertech and until Ap comes here I have to do the BNR S3 swap.

This thread is 5 years old. Seriously?

[allservice]

N

[CWP_MS3]

There's nothing wrong with searching and reviving a thread IMO, but the OP you are trying to ask hasn't been active for 2 years. So I don't think you'll be getting your response.

[Djohns]

Originally Posted by allservice You're 5 years old too, so what?

Oh wow what a witty comeback. Get fucked.

[Jeff23spl]

Originally Posted by allservice How did you setup the OEM EBCS. Or did you use another setup? With OEM tune? I am in the same boat, my 2nd K04 is about to die, I am using Hypertech and until Ap comes here I have to do the BNR S3 swap.

To answer your question, if you take time to read it, he said he kept it on 14psi spring pressure. It's mean the EBCS is disconnected and straight vaccuum line is connected from the wastegate actuator to a boost source without the solenoid. The S3 seem to have a boost source on the discharge pipe so it won't take a long hose to connect it....