M235i FBO BM3 Stage 2 Review / Disappointing Results

AmuroRay · 04-15-2020, 09:19 PM

Quote:

Originally Posted by The_otherM235i

Stock turbo can handle 25lbs of boost MAX and I wouldn't daily that. 400 wheel is definitely doable on a stock turbo.

This is true. I don’t think any OTS tune can do anywhere near 380-390 on pump. That’s already stressing the limits of the stock fuel system, and that’s just too precise for a OTS tune.

The_otherM235i · 04-15-2020, 09:26 PM

Quote:

Originally Posted by AmuroRay

Quote:

Originally Posted by The_otherM235i

Stock turbo can handle 25lbs of boost MAX and I wouldn't daily that. 400 wheel is definitely doable on a stock turbo.

This is true. I don’t think any OTS tune can do anywhere near 380-390 on pump. That’s already stressing the limits of the stock fuel system, and that’s just too precise for a OTS tune.

The stock fuel system can handle 400 break for sure, but that has to be Max without upgrades

AmuroRay · 04-15-2020, 09:30 PM

Quote:

Originally Posted by The_otherM235i

The stock fuel system can handle 400 break for sure, but that has to be Max without upgrades

You can do close to 400whp, and but not every car is going to do it, even with a good tune. I ran out of fuel on my current tune, but my tuner stated it was a map for 380-90whp.

The_otherM235i · 04-15-2020, 09:41 PM

Quote:

Originally Posted by AmuroRay

Quote:

Originally Posted by The_otherM235i

The stock fuel system can handle 400 break for sure, but that has to be Max without upgrades

You can do close to 400whp, and but not every car is going to do it, even with a good tune. I ran out of fuel on my current tune, but my tuner stated it was a map for 380-90whp.

Do guys just get upgraded hpfp or lpfp?

AmuroRay · 04-15-2020, 09:52 PM

Quote:

Originally Posted by The_otherM235i

Do guys just get upgraded hpfp or lpfp?

I’ll be doing HPFP.

The_otherM235i · 04-15-2020, 11:06 PM

Quote:

Originally Posted by AmuroRay

Quote:

Originally Posted by The_otherM235i

Do guys just get upgraded hpfp or lpfp?

I’ll be doing HPFP.

Yeah might do that too. Aiming for 400 wheel on my 94 octane set up. Hopefully with a custom tune we can make that happen

OldCrow7xx · 04-16-2020, 10:05 AM

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Originally Posted by The_otherM235i

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Originally Posted by OldCrow7xx

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Originally Posted by The_otherM235i

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Originally Posted by OldCrow7xx

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Originally Posted by The_otherM235i

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Originally Posted by BostonM235xi

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Originally Posted by The_otherM235i

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Originally Posted by AmuroRay

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Originally Posted by The_otherM235i

You would be making 375 without an intercooler easy...You should be well into the 385+ range FBO stage 2+.

Again you can dabble in a meth kit, ethanol, and even some 100 octane. That'll boost it some more, other then that you'd have to go pure turbos.

Yeah, you're not making 380whp with MHDs OTS, and any dyno that says otherwise is BS. They top out around 365-370whp and yeah, they do leave plenty on the table

How much boost do you think my stage 2+ runs at peak?

Bm3 stage 2 on N55 EWG runs 16.8 psi as mentioned above. I have heard MHD runs a higher boost than bm3.... I would just run a log WOT from 2500-6500 rpm.

I'm staying steady At 18.2 with peaks of 20. I'll post a log tonight with my new fmic

This is more inline with what I am seeing.

I peaked at 19.5 running the Stage 0+ map...So I would think stage 2 would be that much at least or more boost.

Hence why I was surprised at the numbers my sport gauges were registering. Not much higher at all.

Fbo cars should be right around the 385 390 realm for most ots tunes. Running higher octane is going to aid in that of course. A custom tune or meth/e85 should get you to break the 400whp range with our cars, after that it's pretty much maxed out as far as the stock turbo goes.

How are FBO Audi S3 putting down 350 wheel with 2 less cylinders and 1.0 litres less of displacement?

Thats not far of from the 375-390 we are talking here on the n55.

Is the stock turbo really that lame?

Stock turbo can handle 25lbs of boost MAX and I wouldn't daily that. 400 wheel is definitely doable on a stock turbo.

Could I have a dyno guy make custom "extreme" tune running like 25 pounds and then save it to my map library?

Then I would drive around day to day on stage 0+ or stage 1 and re flash over to the custom tune via the wifi agent and BM3 when I wanted to do some aggressive driving?

Seems like you would want to have like a "daily tune" and a "race tune" and swap between them.

The_otherM235i · 04-16-2020, 10:08 AM

Quote:

Originally Posted by OldCrow7xx

Quote:

Originally Posted by The_otherM235i

Quote:

Originally Posted by OldCrow7xx

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Originally Posted by The_otherM235i

Quote:

Originally Posted by OldCrow7xx

Quote:

Originally Posted by The_otherM235i

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Originally Posted by BostonM235xi

Quote:

Originally Posted by The_otherM235i

Quote:

Originally Posted by AmuroRay

Quote:

Originally Posted by The_otherM235i

You would be making 375 without an intercooler easy...You should be well into the 385+ range FBO stage 2+.

Again you can dabble in a meth kit, ethanol, and even some 100 octane. That'll boost it some more, other then that you'd have to go pure turbos.

Yeah, you're not making 380whp with MHDs OTS, and any dyno that says otherwise is BS. They top out around 365-370whp and yeah, they do leave plenty on the table

How much boost do you think my stage 2+ runs at peak?

Bm3 stage 2 on N55 EWG runs 16.8 psi as mentioned above. I have heard MHD runs a higher boost than bm3.... I would just run a log WOT from 2500-6500 rpm.

I'm staying steady At 18.2 with peaks of 20. I'll post a log tonight with my new fmic

This is more inline with what I am seeing.

I peaked at 19.5 running the Stage 0+ map...So I would think stage 2 would be that much at least or more boost.

Hence why I was surprised at the numbers my sport gauges were registering. Not much higher at all.

Fbo cars should be right around the 385 390 realm for most ots tunes. Running higher octane is going to aid in that of course. A custom tune or meth/e85 should get you to break the 400whp range with our cars, after that it's pretty much maxed out as far as the stock turbo goes.

How are FBO Audi S3 putting down 350 wheel with 2 less cylinders and 1.0 litres less of displacement?

Thats not far of from the 375-390 we are talking here on the n55.

Is the stock turbo really that lame?

Stock turbo can handle 25lbs of boost MAX and I wouldn't daily that. 400 wheel is definitely doable on a stock turbo.

Could I have a dyno guy make custom "extreme" tune running like 25 pounds and then save it to my map library?

Then I would drive around day to day on stage 0+ or stage 1 and re flash over to the custom tune via the wifi agent and BM3 when I wanted to do some aggressive driving?

Seems like you would want to have like a "daily tune" and a "race tune" and swap between them.

You probably could, I personally don't use BM3 as im on MHD. I would just keep the custom tune loaded in my phone and switch from my ots stage 2+ to my max tune from my phone.

On a side note, seeing as my M235i isn't my daily I'd probably run the max tune all the time 🤷*♂️ I think I might go with a Cary tune soon.