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Technical Topics B48 4-Cylinder Turbo Engine / Drivetrain / Exhaust Modifications Dyno results/review - G20 330i w/ Turbo Transformer Tune

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      01-07-2021, 10:49 AM   #23
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Originally Posted by JudgeDreadLocks View Post
Hey, I have this too, but I'm having a hard time figuring where to put the box after I install it. Had it in for about a month before I needed to take it out for service, and I found it had deformed from the heat. Any suggestions about where to stick it?
I had mine strapped to the driver side firewall but I had bluetooth connection issues when switching maps. If yours warped, hit them up, see if they can help you.

I removed the cowl cover and hid it under there and snuck the wires through the split in the seal. This, along with mounting the phone to the windshield improved my bluetooth connection.
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Last edited by wifes first bimmer; 01-07-2021 at 10:58 AM..
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      01-14-2021, 10:24 PM   #24
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Awesome result! the Turbo transformer has been very popular with our customers. the gains/features are unbeatable for the price!
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      01-25-2021, 06:35 PM   #25
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Hi Guys. Adding a link to the video


Note to self: go in with a better A/V setup the next time I'm taking dyno measurements.
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      01-27-2021, 06:14 AM   #26
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Originally Posted by njfoses View Post
Hopefully the stock internals of the B46 can handle long term torque of 350+. Fingers crossed.
I don't think these numbers have crossed into the "danger zone" yet. Obviously only time will tell but given that this is a modular engine and shares a lot of parts with the B58, it should stand to be pretty stout.
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      01-27-2021, 08:49 AM   #27
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The problem with this dyno numbers is, you don't really know how it translates to real world performance. How much those extra hp translate in quicker 0-100kph or 1/4 mile.
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      01-27-2021, 12:11 PM   #28
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The problem with this dyno numbers is, you don't really know how it translates to real world performance. How much those extra hp translate in quicker 0-100kph or 1/4 mile.
Which is why I keep telling everyone to get a dragy instead of a dyno run
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      01-27-2021, 01:14 PM   #29
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Quote:
Originally Posted by bquatt View Post
I don't think these numbers have crossed into the "danger zone" yet. Obviously only time will tell but given that this is a modular engine and shares a lot of parts with the B58, it should stand to be pretty stout.
Keep in mind though for the 300 hp 330 ft-lb version of the b48 in some of the newer minis, they are using a reinforced crankshaft, larger main bearings, new pistons and a lower compression ratio compared to the 330i B48/B46. The fact that BMW did not just "tune" to achieve these numbers, is slightly concerning.
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      01-27-2021, 02:39 PM   #30
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Quote:
Originally Posted by njfoses View Post
Quote:
Originally Posted by bquatt View Post
I don't think these numbers have crossed into the "danger zone" yet. Obviously only time will tell but given that this is a modular engine and shares a lot of parts with the B58, it should stand to be pretty stout.
Keep in mind though for the 300 hp 330 ft-lb version of the b48 in some of the newer minis, they are using a reinforced crankshaft, larger main bearings, new pistons and a lower compression ratio compared to the 330i B48/B46. The fact that BMW did not just "tune" to achieve these numbers, is slightly concerning.
Those are valid concerns and I've wondered the same thing myself but I'm guessing/hoping that decision was made out of an abundance of caution. Automakers always over engineer their engines, especially BMW. I don't think that they're naive to the tuning world and they probably want to account for that with their internals. Then again I could be completely wrong and just looking through rose colored glasses. At the end of the day though, BMW engines of all sizes have been tuned for a long time. I don't think there have been many issues with the 4 cyl turbo variants. *crossing fingers*
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      01-27-2021, 06:30 PM   #31
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https://m.facebook.com/1664642133922...6531753718790/

Found this post above interesting^
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      03-20-2021, 08:18 PM   #32
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Quote:
Originally Posted by bquatt View Post
I found that thread interesting as well - I have seen several posts from users with damaged engines with a flash tune.

With a well established tune, the risk is very low (or none) but for early adopters beware - a flash can be risky (just my .02) because who knows what has been changed in your file. One can adjust the wrong tables and still make more power.
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      03-21-2021, 06:57 AM   #33
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It's worth noting that on the papadakis racing 1000bhp supra they reused the stock crank and bearings (main and rod) if I remember correctly (167hp/cylinder, 11:1 CR)

Only upgrading the pistons and rods themselves (B48 have a shit tier rod than B58 but others they share pistons, bearings and crank*)

*obviously the crank isn't identical between a 6cyl and 4cyl, but same design/construction
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      03-21-2021, 07:44 AM   #34
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Quote:
Originally Posted by Knifeedge2k1 View Post
It's worth noting that on the papadakis racing 1000bhp supra they reused the stock crank and bearings (main and rod) if I remember correctly (167hp/cylinder, 11:1 CR)

Only upgrading the pistons and rods themselves (B48 have a shit tier rod than B58 but others they share pistons, bearings and crank*)

*obviously the crank isn't identical between a 6cyl and 4cyl, but same design/construction
BMW did reinforce the crank, change the turbo and make a few other internal changes on the B48 that is found in the M235i and JCW Cooper. Those cars push just over 300 hp from the factory. I am assuming this was done out of an abundance of caution and to allow for the necessary margin they build into their engines. Who knows though? How are the older B48 engines holding up that have been tuned? I have not heard of any major issues.
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      03-21-2021, 11:50 AM   #35
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Quote:
Originally Posted by bquatt View Post
BMW did reinforce the crank, change the turbo and make a few other internal changes on the B48 that is found in the M235i and JCW Cooper. Those cars push just over 300 hp from the factory. I am assuming this was done out of an abundance of caution and to allow for the necessary margin they build into their engines. Who knows though? How are the older B48 engines holding up that have been tuned? I have not heard of any major issues.
Theirs always going to be a handful of engines that fail. The reason for the performance models having beefed up components is for long-term reliability and repeatability. The fact is, most of us who have piggybacks will never need the beefed-up parts as we don't thrash our cars 24/7 - at least speaking for myself. Look at the previous-gen N20 and tunning, very rarely have they let go and there are millions of them out there.

With that said, you always run the additional risk of failure when tuning your car, whatever component that is - nothing is 100% fail-proof.

On a side note. Here is my 0-60 run with this exact setup and 275 Mih PS4 using coded launch control.
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      03-28-2021, 11:25 AM   #36
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Nice, way cool. Looks like you went to 3 psi finally.

It is useful to see the 0-60 times drop with increasing boost pressure, although I am surprised at the big drop from 2.6 to 3.0.
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      03-28-2021, 07:51 PM   #37
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Quote:
Originally Posted by wifes first bimmer View Post
Nice, way cool. Looks like you went to 3 psi finally.

It is useful to see the 0-60 times drop with increasing boost pressure, although I am surprised at the big drop from 2.6 to 3.0.
Yea, power is addicting.

It's also launch control. When brake torquing the converter, I would get monstrous wheel hop - to the point where it felt like my car was going to break. Once I coded launch control, zero wheel hop and crazy acceleration.
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      06-06-2021, 12:48 AM   #38
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Quote:
Originally Posted by TheDudeMan View Post
Yea, power is addicting.

It's also launch control. When brake torquing the converter, I would get monstrous wheel hop - to the point where it felt like my car was going to break. Once I coded launch control, zero wheel hop and crazy acceleration.
Is yours RWD?
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      06-06-2021, 11:39 PM   #39
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Originally Posted by spb View Post
Is yours RWD?
Yes.
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      06-07-2021, 01:09 PM   #40
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Quote:
Originally Posted by VipinLJ View Post
Which is why I keep telling everyone to get a dragy instead of a dyno run
I haven’t used any of the timers out there, but why spend $150 on Dragy vs using a free or much less expensive app? What is the Dragy advantage over the phone based apps?
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      06-09-2021, 07:55 PM   #41
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I haven’t used any of the timers out there, but why spend $150 on Dragy vs using a free or much less expensive app? What is the Dragy advantage over the phone based apps?
The dragy box is much more accurate than a phone. I can't speak for all phones. But. I've used various timer apps on my Galaxy S20 and OP7T. And they were WAY off compared to the dragy. The dragy is spot on. It makes wherever you're at a proper drag strip with times that are accurate. Only issue (which is present in the case of phones too) is that it needs a good satellite signal. But yes. Extremely accurate. I agree that it is expensive and doesn't make sense if you'll use it only once or twice. Or maybe buy one, use it and then sell it for a slightly reduced price? If you want to buy one that is.
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      07-10-2022, 02:15 PM   #42
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Has anybody stacked BM3 or JB4 with the turbo transformer? Very curious to know. Probably not safe for the engine
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      07-10-2022, 05:56 PM   #43
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Has anybody stacked BM3 or JB4 with the turbo transformer? Very curious to know. Probably not safe for the engine
You can stack jb4 and bm3 if you run methanol or port injection. Or if you want to use some of their features that are not available with a flash tune.

There is no reason to stack bm3 with any other piggyback; it's unsafe and does not generate more power.
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      07-28-2022, 08:29 AM   #44
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Quote:
Originally Posted by TheDudeMan View Post
Theirs always going to be a handful of engines that fail. The reason for the performance models having beefed up components is for long-term reliability and repeatability. The fact is, most of us who have piggybacks will never need the beefed-up parts as we don't thrash our cars 24/7 - at least speaking for myself. Look at the previous-gen N20 and tunning, very rarely have they let go and there are millions of them out there.

With that said, you always run the additional risk of failure when tuning your car, whatever component that is - nothing is 100% fail-proof.

On a side note. Here is my 0-60 run with this exact setup and 275 Mih PS4 using coded launch control.

Is this with Turbo Transformer on a 330i? The 93 Octane @ +3psi acceleration numbers looks like the best possible numbers through a custom tune. It's surprising because a custom tune on Bootmod will run, an additional $300-$700....putting your grand total over $1000 (including BM). Your telling me for $199 the TT I would have got similar results ?! I'm kind of bummed.
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