[hassmaschine]

The off the shelf AA tune is weak - I was helping somebody with some tune tweaking, so I've actually seen it. The dyno tune is better, so if you have that, it's probably not worth switching. But BPC OTS vs AA OTS, there is no comparison.

[JohnG7]

Originally Posted by hassmaschine

The off the shelf AA tune is weak - I was helping somebody with some tune tweaking, so I've actually seen it. The dyno tune is better, so if you have that, it's probably not worth switching. But BPC OTS vs AA OTS, there is no comparison.

Haas, we consider you a pretty good judge of many things n52- so this is a pretty good testament. Now I'll have to get current and catch up. With what I am reading now, smart money is going with BPC for a OTS tune. I've been pretty happy with my AA tune, but looks like BPC has an improved tune. This is not the first time I've bought performance parts only to go another route. Looks like maybe time for AA to revisit their tunes or they will definitely loose future sales.

Haas, you care to guess about how much the gains difference would be between the 2 tunes on otherwise equal 330i cars? W37V will hopefully be able to show this somewhat on the same dyno shortly. Overall folks do seem to be happy with their BPC tunes on 25/28 n52 cars now, most seemed happy with their AA tunes before. Always glad to see new options for our n52.

[JuniorB]

No matter who does it,AA,Bpc,or Vivid, there all great and will deliver depending were youwant your power. But the dyno tune is your best outcome

[Noir]

My plan is to go to BPC after my exhaust work is complete and I get the intake I need.

[boro92]

Originally Posted by hassmaschine

The off the shelf AA tune is weak - I was helping somebody with some tune tweaking, so I've actually seen it. The dyno tune is better, so if you have that, it's probably not worth switching. But BPC OTS vs AA OTS, there is no comparison.

FWIW I have recently switched from AA to BPC (as recent as today).
I will be flashing my car this eve. Will create a new thread to report the changes. Unfortunately, I did not dyno my car prior to get a baseline (using AA as the baseline). I will say I was unimpressed with the AA tune - below 4k rpm there was no real difference from stock with 3 stage IM.

Above 4k it picks up, but it dies at 6k (cat overheat protection - unchanged with the AA tune).

[Taskmaster]

Originally Posted by boro92

FWIW I have recently switched from AA to BPC (as recent as today).
I will be flashing my car this eve. Will create a new thread to report the changes. Unfortunately, I did not dyno my car prior to get a baseline (using AA as the baseline). I will say I was unimpressed with the AA tune - below 4k rpm there was no real difference from stock with 3 stage IM.

Above 4k it picks up, but it dies at 6k (cat overheat protection - unchanged with the AA tune).

Unless you have headers, BPC probably didn't turn it off.

[boro92]

Originally Posted by TheAxiom

Unless you have headers, BPC probably didn't turn it off.

Spoke with Bob and relayed my concerns on track.
He noted that he did not turn it off since I still have cats, but he has adjusted thresholds accordingly and allows for the cats to run at an elevated temperature before the fuel dumping occurs.

Edit: his exact words were that the cats would run hotter. This may not mean the temp thresholds for the fuel dump at the top of the RPM band have changed. It may mean that he has altered the AF up top when this occurs, so that less fuel is being dumped in there - freeing up more power.

[Taskmaster]

Originally Posted by boro92

Spoke with Bob and relayed my concerns on track.
He noted that he did not turn it off since I still have cats, but he has adjusted thresholds accordingly and allows for the cats to run at an elevated temperature before the fuel dumping occurs.

Let me know how it works out for you. Sorry about our intake deal - I want to give it ONE. MORE. CHANCE.

[boro92]

No worries man.
I'll report back on the BPC tune for sure.

[hassmaschine]

There's simply a table of EGT thresholds where cat protection is enabled. You just raise the value - I think the default is about 880 degrees Celsius. For a cat delete car, you set it to a number that the car can't hit, and also zero out the enrichment maps.

I'll probably never track my 330i, I've considered raising the threshold since it's not like I'm doing extended high RPM pulls all day long. I think it should be fine.

[Taskmaster]

Originally Posted by hassmaschine

There's simply a table of EGT thresholds where cat protection is enabled. You just raise the value - I think the default is about 880 degrees Celsius. For a cat delete car, you set it to a number that the car can't hit, and also zero out the enrichment maps.

I'll probably never track my 330i, I've considered raising the threshold since it's not like I'm doing extended high RPM pulls all day long. I think it should be fine.

Why do you hate fun?

Why do you hate America?

Think about the kids Hass. The kids.

[Mike.]

Originally Posted by TheAxiom

Why do you hate fun?

Why do you hate America?

Think about the kids Hass. The kids.

ok kanye

[hassmaschine]

Originally Posted by TheAxiom

Why do you hate fun?

Why do you hate America?

Think about the kids Hass. The kids.

If I'm tracking anything it'll be the E30 - it already has race suspension and DOT-R's. Just a tired motor.

[M1Curious]

Originally Posted by Ruddigger

Stop looking.

https://bimmer-performance-center.my...-330i-n52-tune

Noob question. The bottom axis of that dyno shows rpm's right? Is that tune only good if you keep your car in the higher rpm ranges? It looks like crazy torq and HP loses at low rpm's. Is this tune only good for tracking?

[Ruddigger]

Originally Posted by M1Curious

Noob question. The bottom axis of that dyno shows rpm's right? Is that tune only good if you keep your car in the higher rpm ranges? It looks like crazy torq and HP loses at low rpm's. Is this tune only good for tracking?

Losses? I'm not sure what you're looking at, it has gains all over. And of course it makes more power at higher RPMs, that's how naturally aspirated cars work.

[hassmaschine]

Originally Posted by M1Curious

Noob question. The bottom axis of that dyno shows rpm's right? Is that tune only good if you keep your car in the higher rpm ranges? It looks like crazy torq and HP loses at low rpm's. Is this tune only good for tracking?

Yeah, what? The red lines are before - the blue are after.. I'm not seeing losses. Tuning doesn't work that way, anyway.

[M1Curious]

Originally Posted by hassmaschine

Yeah, what? The red lines are before - the blue are after.. I'm not seeing losses. Tuning doesn't work that way, anyway.

ohhh hoo, see thats why i prefaced it with noob question, I was reading it wrong, so wrong... thank you for clarifying now I know how to look at these graphs. derp.

[jdspeed99z]

I am in the same boat here, I have an '06 330xi that I just put the euro box on and it totally woke the car up down low, which is where I spend most of my time driving. I've been looking for input on a tune, but only found old posts. This is awesome, I'm looking forward to more info on the BPC tune.

[Dan Bilzerian]

Originally Posted by jdspeed99z

I am in the same boat here, I have an '06 330xi that I just put the euro box on and it totally woke the car up down low, which is where I spend most of my time driving. I've been looking for input on a tune, but only found old posts. This is awesome, I'm looking forward to more info on the BPC tune.

Dude there's tons of info on the tune.

[rick100]

Originally Posted by jdspeed99z

I am in the same boat here, I have an '06 330xi that I just put the euro box on and it totally woke the car up down low, which is where I spend most of my time driving. I've been looking for input on a tune, but only found old posts. This is awesome, I'm looking forward to more info on the BPC tune.

First time tune bpc is better until aa decides to revisit their tune. If you already have aa tune then i dont think its worth spending that much money

[Savedamanualse90]

If I run the header tune o2 delete on the HFC headers like AFE. Will the tune heat up the HFC above the threshold and burn them out? Or should I just keep the non o2 delete header tune?