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      12-25-2019, 10:10 PM   #1
chriscouderc
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2017 BMW 330i

I have currently been searching for possible upgrades for my 330i. Although I can find some parts for it when it comes to bigger upgrades for more power it seems there isnt much due to the b46 being a relatively newer engine. Upgrading my car is something I will surely do. I have been considering selling it to buy something else that may be easier to do this to. Please help me and give tips as to what I should do in this situation.
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      12-26-2019, 02:15 AM   #2
lacrimarum
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These engines don't have much tuning potential, 290-300 hp is all they can safely handle. If you need more power, 340i would be much more reliable option.
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      12-26-2019, 03:44 AM   #3
mia_chem
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Originally Posted by lacrimarum View Post
These engines don't have much tuning potential, 290-300 hp is all they can safely handle. If you need more power, 340i would be much more reliable option.
is the same true for the b48 too?
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      12-26-2019, 03:49 AM   #4
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Originally Posted by mia_chem View Post
is the same true for the b48 too?
In my understanding it is: b48 and b46 are basically the same engine, b46 just has more strict emission control.
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      12-26-2019, 03:53 AM   #5
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Quote:
Originally Posted by lacrimarum View Post
In my understanding it is: b48 and b46 are basically the same engine, b46 just has more strict emission control.
So a bm3 stage 2 on a b48 is stretching to around 290?
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      12-26-2019, 03:59 AM   #6
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Originally Posted by mia_chem View Post
So a bm3 stage 2 on a b48 is stretching to around 290?
Something around this number, yes. According to their webpage, stage 2 provides up to 18% of power on 93 octane and up to 22% on E30 for 30i engines. As stock 30i has 252 hp, stage 2 will result in 298 and 307 accordingly.
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      12-26-2019, 04:03 AM   #7
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Quote:
Originally Posted by lacrimarum View Post
Something around this number, yes. According to their webpage, stage 2 provides up to 18% of power on 93 octane and up to 22% on E30 for 30i engines. As stock 30i has 252 hp, stage 2 will result in 298 and 307 accordingly.
how reliable would a 330e with ~250 hp from the b48 + ~70 from the hybrid system be? kinda considering a stage 1 bm3
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      12-26-2019, 04:08 AM   #8
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Quote:
Originally Posted by mia_chem View Post
Quote:
Originally Posted by lacrimarum View Post
Something around this number, yes. According to their webpage, stage 2 provides up to 18% of power on 93 octane and up to 22% on E30 for 30i engines. As stock 30i has 252 hp, stage 2 will result in 298 and 307 accordingly.
how reliable would a 330e with ~250 hp from the b48 + ~70 from the hybrid system be? kinda considering a stage 1 bm3
The engine will be absolutely ok: there are plenty of 20i remapped to 30i to get exactly 250 hp, no problems with this setup if you use premium octane.
Unfortunately, I know nothing about hybrid system in 330e, those were never sold in my country.
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      12-26-2019, 07:02 AM   #9
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Quote:
Originally Posted by lacrimarum View Post
The engine will be absolutely ok: there are plenty of 20i remapped to 30i to get exactly 250 hp, no problems with this setup if you use premium octane.
Unfortunately, I know nothing about hybrid system in 330e, those were never sold in my country.
Considering doing the same to my 330e. Was thinking of 330-340 bhp with an additional 100lb/ft of torque. A tuner I spoke to recommended remapping the gearbox at the same to to increase clutch/clamping pressure. I'm sure the shift times will be reduced also.
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      12-28-2019, 12:10 AM   #10
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Considering doing the same to my 330e. Was thinking of 330-340 bhp with an additional 100lb/ft of torque. A tuner I spoke to recommended remapping the gearbox at the same to to increase clutch/clamping pressure. I'm sure the shift times will be reduced also.
Is the extra remap really necessary? I think the standard trans can easily handle ~330hp 500 nm before its needed to be modded
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      12-28-2019, 12:49 AM   #11
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Quote:
Originally Posted by chriscouderc View Post
I have currently been searching for possible upgrades for my 330i.
Trade it in for the new ///M340. Car is a beast. You won't regret it.
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      12-28-2019, 03:38 AM   #12
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Quote:
Originally Posted by mia_chem View Post
Is the extra remap really necessary? I think the standard trans can easily handle ~330hp 500 nm before its needed to be modded
I think it would be safer to map the box than leave it standard. If the clutches started to slip and cause damage, cost of replacing a 330e gearbox would be crazy as it also contains the electric motor.

Last edited by jcdub; 12-30-2019 at 03:00 AM..
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