Auto news on Youtube Nov 29 2018

welcome back everybody mark with exotic car play place again today to welcome

you guys to the BMW x3 m40i this is the hot version the M version that I want to

talk about today

so today we're gonna get into the engine design of this car what is so special

about this engine in this vehicle that makes it stand out heads and tails above

the rest we're gonna get into that let's get started so come on in let's take a

closer look at this engine right here so I'm gonna pop the hood and what do we

have over here this is the new b-58 engine the third generation of the

inline 6-cylinder turbo now produces a lot more power than the previous

outgoing generation n55 engine this engine has a few different power output

configurations you could get these engines with 322 335 horsepower 355 and

the 382 horsepower now the 380 - did you know that this is the engine that the

new Toyota Supra is coming with yes they've elected to use BMWs b-58 engine

slightly tuned up of course to provide their drivetrain for that hot new car

from Japan so this is the actual drivetrain for that car

that being said there's a 20% boost increase from previous generation in the

n55 it's of a closed deck design and runs a compression ratio of 11 to 1 as

well the overall displacement has been tweaked a little bit and now that's up

from 2979 to 2998 CCs overall that's also been tweaked now

it also has an intercooler a water to air intercooler which is designed to

help cool you know under the higher boost conditions that's going to help

this whole thing stay together it's also integrated with the intake plenum so

it's all of a one-piece modular type design should help with overall

reliability unfortunately if something fails there you're replacing the holes

on slot but time will tell on the reliability of that and the reduced

plenum air capacity is really intended to reduce turbo lag so with this car you

would expect far less turbo lag and I can honestly confirm that after driving

this car for a while it actually produces a lot less turbo lag than even

its predecessors which were known for almost a lag less power delivery so this

one as well as a double vanos nothing really unique there in terms of the BMW

world but it uses the Valvetronic variable valve lift adjustment so that's

also incorporated here and is able to rev to a massive 7,000 rpm not bad for a

turbo engine of course

you can see it goes very very quickly it doesn't take time to get up to speed it

also has an engine mounted heat encapsulation system which is that

intended really to reduce wear and tear on cold startups and also helps with

overall emissions so there's a lot of things that have gone on in this new

engine to actually improve on its overall reliability under hard driving

conditions to reduce boost heat and heat soak as well as overall longevity for

the engine they're utilizing that that overall engine block that is also

coupled up which is also shared by the diesel version of this the diesel

version also utilizes the same crankcase setup which is a lot more robust so I

would expect overall this engine is going to last a long long time

so everybody I hope you enjoyed the video I really hope you loved what I had

to introduce here at the end of the day this great new hot inline 6-cylinder

turbo single turbo engine is the latest from BMW and it holds some great promise

for some great things so far not really that tune-able we'll see what the

aftermarket has for it but for now it seems like they've addressed some of the

issues that you've normally seen some of the issues from the n55 and definitely

vast changes from the n54 for reliability so thanks again everybody

make sure you if you liked the video you make sure you give it a thumbs up like

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bell I'd like to hear from you guys again and make sure you come back and

check out the next great video thanks again

mark here signing out bye