N20 Turbo Lag

tbrazil · 01-03-2020, 12:46 PM

Hey guys,

I'm currently stage 2 on n20: running BM3, catted DP, Chargepipe, intake, FMIC. Are there any additional mods I could look into to reduce turbo lag? Possibly an intake inlet upgrade?

Any advice helps

Thanks

Billfitz · 01-03-2020, 02:39 PM

You can only do so much. The turbo requires a good amount of exhaust flow to get the turbine up to speed.

Gen13 F36 · 01-03-2020, 05:32 PM

Turbo lag... seriously. The turbo is small and torque start at 1250 rpm. Where the turbo lag there.

I drove Lancer EVO and Silvia S14... now that what you call turbo lag.

lemonchicken · 01-03-2020, 05:40 PM

Get an electric car??

Billfitz · 01-03-2020, 08:26 PM

Or a supercharger.

Ishan99 · 01-11-2020, 08:00 AM

I Neel like you might be experiencing a boost leave rather than turbo lag

JoeyF30 · 01-11-2020, 04:46 PM

BMS Pedal Tuner.

meltbox · 01-14-2020, 06:23 PM

This thing spools instantly pretty much. How much delay do you have at ~3k rpm in manual mode when flooring it? How about ~2k rpm. I get pretty much instant boost with all stock hardware at 3k and maybe a second delay at worst at 2krpm.

Actually the more you increase the size of your intercooler/piping the more lag you introduce. Should be marginal though.

01-03-2020, 12:46 PM	#1
tbrazil Second Lieutenant 18 Rep 200 Posts Drives: 16%E2%80%99 340i Join Date: Jul 2018 Location: Queen Creek, AZ iTrader: (0)	N20 Turbo Lag Hey guys, I'm currently stage 2 on n20: running BM3, catted DP, Chargepipe, intake, FMIC. Are there any additional mods I could look into to reduce turbo lag? Possibly an intake inlet upgrade? Any advice helps Thanks
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01-03-2020, 02:39 PM	#2
Billfitz Lieutenant General 8246 Rep 16,091 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	You can only do so much. The turbo requires a good amount of exhaust flow to get the turbine up to speed.
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01-03-2020, 05:32 PM	#3
Gen13 F36 Brigadier General 1599 Rep 3,748 Posts Drives: 428i Gran Coupe Join Date: Nov 2017 Location: Los Angeles, CA iTrader: (1)	Turbo lag... seriously. The turbo is small and torque start at 1250 rpm. Where the turbo lag there. I drove Lancer EVO and Silvia S14... now that what you call turbo lag.
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01-03-2020, 05:40 PM	#4
lemonchicken Lieutenant 251 Rep 439 Posts Drives: 2013 328i blue Join Date: Aug 2015 Location: los angeles iTrader: (0)	Get an electric car??
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01-03-2020, 08:26 PM	#5
Billfitz Lieutenant General 8246 Rep 16,091 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	Or a supercharger.
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01-11-2020, 08:00 AM	#6
Ishan99 Captain 115 Rep 622 Posts Drives: 2017 BMW 320i Join Date: Jun 2017 Location: USA iTrader: (0)	I Neel like you might be experiencing a boost leave rather than turbo lag __________________ Ishan Achar Former: 2004 BMW E46 325i Current: 2017 BMW F30 320i Follow @Black_Lux_Cars on IG
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01-11-2020, 04:46 PM	#7
JoeyF30 Private First Class 20 Rep 162 Posts Drives: BMW 2013 328i xDrive N26 Join Date: Dec 2019 Location: Iselin , NJ iTrader: (0)	BMS Pedal Tuner.
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01-14-2020, 06:23 PM	#8
meltbox Private First Class 43 Rep 170 Posts Drives: 2014 328xi GT (F34/N20) Join Date: Sep 2018 Location: Michigan iTrader: (0)	This thing spools instantly pretty much. How much delay do you have at ~3k rpm in manual mode when flooring it? How about ~2k rpm. I get pretty much instant boost with all stock hardware at 3k and maybe a second delay at worst at 2krpm. Actually the more you increase the size of your intercooler/piping the more lag you introduce. Should be marginal though.
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