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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Best guess on BM3 tune for 2018 330i
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      06-28-2019, 02:41 AM   #1
Jamitar
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Best guess on BM3 tune for 2018 330i

Any ideas? I've got a dinan intake and will be get getting a charge pipe. I've got access to 93 octane but can't run catless due to emission checks in my city.

What should I expect when it's released? 248 stock crank to ??? 300? I'll post dynos as soon as it's released(PLEASE HURRY PTF)!

As far as downpipes - cat highflows are running 1000+, and so are axelback exhausts. Are these necessary at all? I'm not going to get a bigger turbo.
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      06-28-2019, 06:59 AM   #2
rjd_F30
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Quote:
Originally Posted by Jamitar View Post
Any ideas? I've got a dinan intake and will be get getting a charge pipe. I've got access to 93 octane but can't run catless due to emission checks in my city.

What should I expect when it's released? 248 stock crank to ??? 300? I'll post dynos as soon as it's released(PLEASE HURRY PTF)!

As far as downpipes - cat highflows are running 1000+, and so are axelback exhausts. Are these necessary at all? I'm not going to get a bigger turbo.
There are zero necessary hardware mods needed for stage 1.

Since it's not out yet, it's really hard to guess how big the HP bump will be over stock, though if the N20 is any indication, you should pick up 40ish horsepower to the wheels.
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      06-28-2019, 07:53 AM   #3
Raphy
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Following this ... I got a 2018 330i as well. Getting axelback installed next month (when it arrives) and have BMS intake... been debating JB4 and BM3... so i'd love to see the results when the BM3 is ready. Keep us posted!
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      06-28-2019, 08:17 AM   #4
GreenF30N26
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Havent seen much, or any, for BM3 dynos on the N20 platform. Only thing for sure is the drag numbers for fastest track times thread.
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      07-01-2019, 01:49 AM   #5
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Quote:
Originally Posted by Raphy View Post
Following this ... I got a 2018 330i as well. Getting axelback installed next month (when it arrives) and have BMS intake... been debating JB4 and BM3... so i'd love to see the results when the BM3 is ready. Keep us posted!
for my opinion its better to get the MST intake rather than the BMS intake as there is no heat shield for the BMS.. With that you engine will be taking much hot air...

Currently with MST intake, CSF Radiators, FTP Chargepipe, & a full custom exhaust with catless downpipe and its making 280whp & 420Nm on wheels from the F30 330i B48 engine..
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