Is A B58 Turbo Upgrade worth it? My thoughts

Short answer - Do it
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[@cameronrussell9362]

My M240i has a Pure800, Dorch HPFP and flex fuel sensor for E85. Car is an animal. The B58 is like a cheat mode. Boss.

[@armandojimenez4007]

How is your trans? Does it slip?

[@mrfiasco7941]

@cameron russell I'd like to know this above also, how's the trans are you auto and are you xhp?

[@thebeardedlifestyle5563]

Thinking about going with the stage 2 from pure , dorch stage 2, and a vrsf dp maybe a charge pipe but not needed hoping to stick to just 93 Oct as this is my dd Lol

[@rodz1999]

What’s the most hp people get with 93 oct?

[@N54htmare]

No, S58 is the real cheat mode tune and downpipe and it’s already making more than your big turbo B58

[@Dong]

Im rolling both B58 and EA839. EA839 is sluggish and can definitely benefit from turbo upgrade for better low end torque. For daily B58, I'll say simple stage 2 ecu tune is more than enough. This engine is so smooth and effortless for stock turbo

[@whats55]

can you go more into detail of the pros and cons between both engines?

[@travisclymens988]

Driver mod required 🚗💨 All your videos are phenomenal

[@Tupeutla]

at 11:38 you have 2 runs , one is hot and dry conditions , the second is on cooler air and a way more humid ... it counts , i dont know cars but I know planes one day you can pass the mountain , another day you cannot ( no turbo ). hot and dry you motor is asthmatic

[@Tupeutla]

that's because the S58 have 2 turbos , small . less lag . depend what you want . kick in the ass later or something faster

[@meowpwr]

I think it’s also important to point out that you have to be willing to work through the bugs to get your car dialed in and consistent. I’m having a tough day today with my car trying to find where / why my boost is cutting out at wot. I am tempted to put my foot through my door panel here and there, but other days it’s just so worth it for the fun you get to have 😂😂

[@kern417]

100%

[@dannypenaloza5773]

your running stock intake ? If you are could be that look to upgrade

[@meowpwr]

@@dannypenaloza5773 I don’t have an intake just a velocity stack 😂. I’m ok. It ended up being a torn o ring for my throttle body.

[@Next_revv]

Hell yeah it’s worth it. Mine coming in soon 🐌

[@the_batmobile0.4]

Kern can you do a video on the best way to launch your car? Ever since I got tuned, oem LC is always putting me out of sport/sport+,

[@kern417]

yes once i get the 340 going

[@mateymonkiller1000]

Hold dsc for 5 seconds, brake boost from 1st send her to the moon.

[@the_batmobile0.4]

@@mateymonkiller1000 m1? Someone told me to brake boost in m2

[@mateymonkiller1000]

@@the_batmobile0.4 same I’m going off my mate comparing his times between a 2nd gear launch and 1st and his was better in 1st stage 3 M240i

[@the_batmobile0.4]

@@mateymonkiller1000 oh ok, I'll give it tru

[@xenomorphelv4265]

Is it necessary to upgrade the turbo to reach 500hp ? the CSF intake manifold seems to add +20hp, the CSF intercooler +25hp. and custom fuel pomp may add 10-15hp. My guess is it's not enough to reach 500hp just with these parts.

[@natelaorno1637]

Love the vids !

[@licq]

outro music at 1.25 speed go so crazy 🔥

[@kern417]

Ayooo

[@peterwood2633]

B58 to add insult to injury to us N55 owners is the turbo is right there like you can pick it like an apple from a tree and do a swap!

[@davec5237]

Great info thanks for sharing 👍

[@BAZZERBAZ]

Hi, do you know much about the venom800 turbo? Pretty reasonably priced and ticks alot of boxes. Your content is very helpful and informative keep up the good work 👏

[@jakeatkinson901]

I hope you're getting paid for these cause I just had to watch 4 advertisements for a 10 minute video... lol.. ...great videos btw 👍

[@kern417]

Sorry about that. It varies based on length so when it's over 10 minutes you see more

[@jakeatkinson901]

@@kern417 don't be sorry brother. I just hope you are getting something for it. Keep up the great content!

[@micraw714]

You da man Kern! Making me want to tinker with the wife's X3 M40i 😆

[@kern417]

i'm not saying you should. but you should.

[@micraw714]

@@kern417 haha heck yes 👊

[@cameronrussell9362]

Catless downpipe and BM3. Don't tell your. wife you did it.😂🤫

[@micraw714]

@@cameronrussell9362 good idea! 😆

[@samoualx]

My 60ft times improved with the bigger TURBO! :)

[@cameronrussell9362]

What are they? my car is either lazy off the line or smokes the tyres. Getting 2.0 60ft time which is horrible.

[@samoualx]

@@cameronrussell9362 1.65 in a prepped surface, if not it usually runs on the 1.74-1.82 secs

[@chap5220]

tbh the biggest problem of big turbo comes way to short in the vid. dailying a big turbo and driving reasonably is totally effected big turbo lag. If you got the mppsk like me and dont wanna be the absolut douch an the road aswell as getting a normal mpg you drive between 1200-2500 rpm and in that rev range there is A huge difference between stock turbo and upgrade turbo. Especially if your a manual like you n me are, going 20-30 kmh and trying to get away fast will need you to clutch kick or whatever

[@allanhernandez5142]

Hey Kern, looking to add the EFR8374 turbo kit on my RWD 340, other than HPFP and DP, what other supporting mods do you have? Forged piston/rods? LPFP? Curious to know, since I want to run the same hp reliability.

[@kern417]

My 630whp dyno was the turbo kit, Dorch stage 2, and custom tune on E40. I have port injection now but it's not needed for a reliable 600-650.

[@allanhernandez5142]

@@kern417 Appreciate the feedback & love the channel. I’ll keep you updated on the near future build 👍🏼

[@dealerslicenseops]

What rim/tire setup do you have to get the wheels to hook up? Do you have to upgrade brakes as well with all that extra power?

[@mannyv9665]

hoping you answer, i just recently bought a 340i and want to go with a bigger turbo but not too sure which one kinda leaning towards a pure 800 or 850 but not sure if you’d recommend any others to look into 👍🏼

[@kern417]

daw or pure are good options for hybrids

[@b16dans]

Turbo upgrade is expensive but worth it, even if it’s just to destroy any stage 2 cars you come across :)

[@itsgoofyytaee1110]

I like the 585wtq and 500whp rather than the 590wp and 535wtq. Is there an upgraded turbo that doesnt sacrifice the torque numbers? I mainly do digs. And I love to get thrown back in the seat when accelerating.

[@kern417]

Not sure what you mean. All big turbos can make more torque than a stock turbo.

[@itsgoofyytaee1110]

@@kern417 I understand that, Im saying I dont want to sacrifice that much? I come from American muscle for the past 4 years. So turbos kinda new to me, I thought smaller turbos peak hp faster but have more toque and have it earlier

[@kern417]

@@itsgoofyytaee1110 it'll come on earlier but a bigger turbo can support more torque and power.

[@VictorEstrada]

@@itsgoofyytaee1110 a bigger turbo will still get you more torque. I have this turbo on my N55, and the spool is so quick, you gett a much better launch. When driving and floor it, by the time the tranny downshifts, you already have boost, so it also pulls hard, I tested this with a SC Camaron 1LE, and he pulled on me for a few secs, but shortly after I put a bus on him before letting go. This was with a stock LPFP, Dorch Stage 2, and an incomplete tune running at only 17psi. You don't lose anything at all vs a small turbo. Now that I have a built engine, my tunner says he can get me 870whp with this turbo after I upgrade my fuiling as I still need PI and the LPFP. But that's after the tranny of course, just letting you know of the potential of this turbo, 750 is the factory rated, so you can still get more. Just like this car is rated at 300hp, but look at how much we're getting out of it!

[@AlesandroJ14]

is a hybrid turbo with port injection setup worth it if i dont upgrade my transmission?

[@kern417]

You can pretty much hit the limits of the transmission on an ethanol mix, but if you want to run full E85 then port injection is worth it

[@chukwuemekaonyema2716]

If your goal is sound, loud BOV and spool sounds, I assume bigger turbo wins there too? Also, any suggestions on how to get the B58 to safely bounce off the redline like Lexus F cars?

[@KeithCozy]

safely lol, made a stock 335 exhaust crackle like rice krispies

[@Isaac2Anti]

I’m looking to get PI, LPFP and pure 800 you think that’s safe on stock trans and motor not looking past 700

[@kern417]

if you tune it safely, sure.

[@Thatslow340]

I can’t find a ballpark answer anywhere or dyno sheet without meth, and you’re the most knowledgeable person I can think of when it comes to this, but with a 340i dorch stage 1, and doc race 9174, around how much power you think bm3 stage 2+ 93 and e30 maps would make? Trying to figure out what’s the best bet but not overkill till I get a custom

[@kern417]

93 around 500 E30 around 550

[@Thatslow340]

@@kern417 sorry for another question, should’ve just included it, but lastly, what about the stage 2+ e50? That’s what I ran before the stock turbo blew, you think it’ll be close to 6?

[@kern417]

@@Thatslow340 doubt it. Boost is too low

[@user-el2zj3pw5r]

2018 540i on 99fuel (UK) stock turbo Stage2+ vs pure800(or similar) In yr opinion 100-200 will make noticeable improvement?

[@kern417]

Yes

[@nikokarapetyan4467]

Im currently looking to get a flow max and push 650 hp is a dorch stg 2 necessary or is the tu pump good enough to push those number

[@kern417]

Yes get a ds2

[@heartbrkid7581]

is this on stock internal like god dam seems sketchy

[@bashenga666]

How do I figure out what stock turbo I currently have. I want to figure out how much horsepower it's rated for. G42 BMW

[@kern417]

Google

[@bashenga666]

@@kern417 a person would think I had already tried google before asking

[@aj2734]

This engine was made for upgraded turbo.

[@heartbrkid7581]

on stock internals ?

[@ai3270]

​@heartbrkid7581 forged engine, close deck block. Very robuste

[@chrxme3786]

Hey Kern, I daily a FBO 340 xDrive running E40 on a TU pump. I would like to get around 600whp without PI, so I’m considering a new turbo. I was looking into the VTT GC turbo (not GC+) and assumed I may need to upgrade to a DS2 HPFP as well. Would you recommend this setup for my overall power goals? Would I even need to upgrade the HPFP?

[@kern417]

i would get a bigger turbo for 600whp

[@chrxme3786]

@@kern417Hey Kern I ended up purchasing a DAW Flowmax+ with the TU pump installed running e40, do you think a custom tune would get me close to that 600hp range or would it be worth it to drop $1500 on a Dorch Stage 2?

[@kern417]

You'll want a dorch stage 2. That's right at the limit of a TU pump

[@ramirosandoval8659]

What were your numbers with tu vs ds2?

[@kern417]

Ds2 adds capacity for about +100hp. I didn't max out my ds2

[@SmerkeHD]

so the 9280 wont be good for drag racing ccuz itll be do laggy right

[@kern417]

It can work great for drag racing if you dial in the launch. Lag doesn't matter once you're moving.

[@marknichols-hb7tu]

What turbo is best for a 540i to make between 500-550 HP

[@kern417]

any turbo can make that power.

[@trapgodnah9022]

GARRET!!

[@codyway7424]

What are the limitations of the stock low pressure fuel pump? Everyone seems to focus on the hpfp on the B58.

[@kern417]

Around 700 whp

[@codyway7424]

@@kern417 That's plenty. Thanks.

[@cameronrussell9362]

@@kern417 Is that the TU pump?

[@kern417]

@@cameronrussell9362 no

[@xxthehuskycaboosexx]

Can stock b58 internals handle big turbo?

[@kern417]

Sure

[@v3gatron23]

Will this set up fit my 2021 supra?

[@kern417]

They make one for the supra yes

[@aTakoinaMako]

Is it a good assumption that a hybrid turbo will spool faster than a full frame turbo upgrade?

[@notdeelan]

yes

[@kern417]

Depends on the size of the full frame

[@alexandrewoods3763]

Kern I have a 2017 540i with 41000 miles and a bootmod3 stage1 tune for 3 years. I’m getting engine code p0420 and the car drives good. But about 3 months ago I got an error coolant error code that I cleared. What do you suggest

[@kern417]

Your downpipe may be bad. Coolant code depends on what it is. Check the levels in your coolant reservoir

[@alexandrewoods3763]

@@kern417 ok thanks

[@badass1g]

Did you get the 420 fixed? If not I know how to fix it for very cheap lol. 02 spacer on your rear 02 sensor. I had to do it on my car when I went catless. Cost like $5

[@alexandrewoods3763]

@@badass1g the engine light went away. I took it to the dealership and they didn’t see anything wrong. But they removed my tune fcol and said to bring it back if it return. The only modification I had was the tune . No down pipe

[@NS416]

I got a P0420 on my 440i, I just cleared it and it went away. Still don’t know why it came on, but noticed it came when I would open and close the exhaust valve a bunch of times in a few seconds lol

[@universalg_]

I love my DAW

[@armandojimenez4007]

Are you on stock trans? If so hows it holding

[@universalg_]

@@armandojimenez4007 I’m on stock trans and I’m running TU pump so I’m not running any high boost atm

[@badass1g]

That’s the turbo and pump I’ve been thinking of doing. Would you have done anything different? Is that setup good for 500 whp on 91-93 octane?

[@universalg_]

@@badass1g I want to either run PI or DS2 for my next upgrade but i think you should be able to reach 500whp on tu

[@ViisionPvP]

@@universalg_how is the car holding up? and daw

[@DamnDudeGetaLife]

Definitely lag on my Pure850 and it feels really boring to drive around town.

[@behindthebuild8016]

Really? You should see full boost at 3500rpms on the 850

[@DamnDudeGetaLife]

@@behindthebuild8016 My car doesn't hit 3500rpms while city driving lol unless I'm driving in manual mode and then the instant boost kicks in im speeding way to much.

[@behindthebuild8016]

Yes yes fair enough. My DAW HITS quite strong from 2500 full by 3000 so I know what you mean!

[@cameronrussell9362]

My Pure800 was really laggy compared to the stock Turbo, until I put in a Flex Fuel sensor and tuned for E50. Its not boring now. Its a rocket.

[@ianlam1445]

@@cameronrussell9362 with flex fuel, you don’t need to change maps when you put the fuel in right?

[@CSKeaton.]

Some high numbers…

[@noblesseoblige4622]

Big boost or go home

[@jp_b58]

do you think the 9174 can make 700whp under 29psi of boost?

[@kern417]

It'll probably be around there.

[@jp_b58]

@@kern417 What ethanol mix should I run to optimize a dorch stg 2 hpfp? I saw you make 630whp on E35 @ 28psi boost with the 8374 and PTF also made 700whp on E42. I thought E50 was needed to run high boost (28psi), apparently not.

[@kern417]

@@jp_b58 it really just depends. Your best bet is to work with your tuner to figure out the optimal mix. I started with E30 and then we began bumping it up. I actually ended up around e40 and I think that's a good starting point for most people.

[@kern417]

@@jp_b58 kzbin.info/www/bejne/rHy4e3qabZJ7aLs

[@kle26]

can you run ots maps on hybrid turbos?

[@kern417]

kzbin.info/www/bejne/nJ-3eqyeat-AmLc

[@kern417]

Yes

[@kle26]

@@kern417 thank you, been tryna find this video but couldnt find it

[@kern417]

Glad to help

[@jsnadrian]

lol that outro

[@gottgaame]

Upgrade the turbo? No! Toss a tuner on it and call it a day. The b58 is fast enough

[@Tomtommi]

Horrible airfilter 🫣