Manual Boost Controller Install

On this episode I install a cheap Amazon MBC (manual boost controller) and take it for a test drive to see how it works.

[@georgiaboy1579]

Truck sounds good Brother. Nice work

[@andyhammond2212]

Just installed same one on my 03' Civic Si. Ran the 7lb spring for about a week and ready to up it a tad till 1000cc injectors get here!!! Nice video.

[@Switching-Cars]

glad to see it works good i just bought the same on amazon

[@simonphung4709]

Thank you for saying how many notches, I just installed mine and turned it 3 times and hit 8lbs but I was worried I had a leak somewhere

[@dondownriver3464]

Im new to the channel thanks for the video. That cool you have a dog that loves your ride too.

[@sabiya2]

If you have a stock boost controller, one line going to EGR the other turbo, do you disconnect the stock?

[@chrisnino5382]

So after a year how would you rate the boost controller?

[@koboskolors]

Like crack!! I’m scratching my neck in anticipation of doing my own setup

[@topnotchactivity9325]

Does it matter which way the the T is on the line?

[@infamousnova]

How do you like it 1year later

[@artisnamejskursitis9179]

By increasing the pressure, will ecu fuel also be delivered more?

[@rakhazidane4022]

I think it might compensate by delivering more, but not by much. Better to get a remap or bigger injectors

[@chilskater]

how to connect this to boost gauge?

[@krazeloc]

So did you remove the spring with since you installed the boost controller

[@LowbuckLS]

No you need to leave the spring in the wastegate, the boost controls just restricts the signal to the wastegate opens later and the turbo builds more boost. If you removed the spring the wastegate would open as soon as the turbo started to create boost

[@omarplat334]

So with the dial all the way down, that’s the lowest boost setting?

[@LowbuckLS]

Volvomar Plat yes with the dial all the way down it will be the lowest boost setting which will depend on what spring you have in the wastegate, in my case it is a spring that provides about 5 pounds of boost.

[@jasonpetersen8745]

Hi there, can I tee the boost gauge from the turbo vacuum as well or is it advisable to connect the gauge to the intake vacuum

[@LowbuckLS]

Jason Petersen I have mine connected to the turbo but connecting it to the intake would work fine too

[@jasonpetersen8745]

@@LowbuckLS thanks for the reply much appreciated

[@jadenweaver7529]

Yeah I was noticing that you must have the boost gauge before the throttle plate and not behind the throttle plate. truck sounds real nice so Is one click on it for 1psi ?

[@blackmamba2k147]

Have you took your truck to the track yet to see what et times before and after your turbo set up?

[@LowbuckLS]

black mamba 2k14 not yet, need a bigger fuel pump before I can hold it wide open for the length of a quarter mike. Have one, just need to put it in.

[@blackmamba2k147]

@@LowbuckLS Ohhh OK but it sounds very good on the video and you said it was getting squirly on you lol I bet if your dog could talk he would tell you to slow down haha

[@harmankardon478]

nice!

[@samirawalil3024]

Good am boss.is your truck is diesel egine??or gasoline??thanks and god bless you

[@LowbuckLS]

It’s gasoilne

[@bigmik3566]

Sounds like your revving harder after turning it up. So is this video a load of bollox? How can a boost controller add more pressure on a straight pipe? It can only restrict it

[@LowbuckLS]

BIG MIK3 it restricts the pressure going to the wastegate actuator. So the diaphragm on the wastegate doesn’t have the full boost pressure from the turbo acting on it, so the wastegate stays closed longer and the turbo creates more boost. The boost controller isn’t adding more pressure it restricts the pressure going to the wastegate which allows the turbo to create more boost pressure.

[@notnilc20]

That "T"pipe that you didn't know what it goes to is for when installing on a dual port wastegate.

[@TheRealMichaelP]

Does it matter how you connect the WG, top port and bottom port to the Tee? Which one should go in the top part?

[@aircnc9385]

Twin turbo

[@SaiPhet]

Do you need it zip tie the hose so there isn’t any leak. I installed mine today and have it all its lowest setting but some how my gauge is reading 15lb

[@aidenpatel1282]

It’s probs because the spring in your waste gate is rated for 15 psi

[@aidenpatel1282]

U can’t lover the boost of the waste gate only increase it

[@SaiPhet]

@@aidenpatel1282 before I install it my boost gauge read 5lb all the time.

[@aircnc9385]

A leak wouldn’t cause a spike though

[@aircnc9385]

Sounds like we’re having the same issue. I think it’s a faulty mbc.

[@tommyv4980]

So if your spring in your wastegate minimum psi is 5, does this mean you shouldn't exceed ~15psi just to be safe? So that means you are responsible for making sure you don't exceed that amount on the boost contorller? Am I correct? I'm trying to learn this stuff, it's really interesting.

[@RoliRuli]

Actually you have to watch the air/fuel ratio, since your injectors will max out at some point, while turbo still delivers air in and it can lean out your engine

[@MixaL1s6804]

Actually you have to watch the air/fuel ratio, since your injectors will max out at some point, while turbo still delivers air in and it can lean out your engine

[@bigtrippy4970]

​@@MixaL1s6804very well said

[@davek556]

👍👍

[@MrEdrisdem]

Nice nice

[@lukewalxh8672]

why isn't anyone talking about the dog?

[@89StarquestTSi]

Describing a FMU (efi) and MBC LMFAO "The FMU/MBC, like the carburetor, is a complicated device used to provide the wrong air/fuel ratio at all combinations of speed and load!" .... "Well in its defense it is slightly more effective than the controlled fuel/air leak we call carburetors" MODERN EFI SYSTEMS WITH MBC/FMU: Knock sensor: somethings wrong.. I should pull timing O2: yup, definitely something wrong, let’s add some fuel MAP/MAFS: guys... I’m really not liking this.. MBC/FMU: YEEEEEEHAAAAWWW BOYS! LETS GO TO THE MOON!

[@patrickbaitman8336]

Hook a wind vein to the knob of the controller. The faster you go, the more it opens. Lowbuck boost by RPM!

[@craigbuilt]

Why is your boost gauge reading 0 at idle? You should see vacuum

[@LowbuckLS]

Because when I made this video, the point where my boost gauge was sensing pressure was upstream of the throttle plate in the throttle body. I have since moved it so it senses downstream of the throttle plate so now it does read vacuum at idle.

[@bryanc52]

Your af should be 11.8 or less to not lean out. And your boost guage sposed to read vacuum also its not working properly unless u have on turbo instead of intake which is where should be installed.

[@carlosberrios1021]

So the - mark means more boost and the + mark means less boost?

[@komrabaikamara2]

Fuel control

[@james10739]

10 psi is probably way funner than 5 or 6

[@LowbuckLS]

James Holbrook yep those few extra pounds make a big difference

[@namesmatt]

so the installation was done wrong. that valve was still be installed where you put the boost controller. it’s a split valve that splits the flow to the wastegate up to your boost controller, where you open the controller to bleed the pressure off form getting to the wastegate, it gives way more control over your boost this way than the way you have installed it.

[@namesmatt]

so the arrow on the valve points towards the waste gate, and the nipple coming off the top of the spout valve goes to your dial, and connect the valve to the hose with the arrow pointing towards the T. and the other end of the valve left open or piece of hose directed into the engine bay if you mount it inside the cabin (just so you don’t constantly hear the valve bleeding off) it’s way more accurate for decreasing pressure to the wastegate

[@LowbuckLS]

Ok maybe I’ll try it that way, it didn’t come with instructions so it wasn’t clear on how to install it. The truck is put away for the winter but I’ll try it that way in spring time.

[@namesmatt]

yea for sure man. sorry if i sounded a bit like an ass hole there lol i literally had mine show up a few days ago and been researching them for a while now for my wrx. and i’m gonna do the install whenever this blizzard weee having stops

[@solonassouglis6385]

The installation was done right my friend! The T piece is for a different type of boost controller the one tha has its nipples on the same side and writes vein and T piece. Maybe tbe purpose of this connector is for connecting to a sensor

[@kidevaristo]

Friend why didn't you assemble the T-shaped joint?

[@LowbuckLS]

Miguel EG9 CV turbo this boost controller didn’t come with instructions and I wasn’t sure what the T shaped piece was for, do you know what it’s purpose is? It seems to work fine without it the way I have it installed.

[@FoulDeformity]

@@LowbuckLS Awesome stuff man! Yeah I was wondering why you didn't put the boost controller inside your cabin...that way you can adjust it in seconds...I believe it's a Check Valve of some sort...not 100%...cheers!

[@toddgreen8976]

2 or 3 bar map sensor

[@LowbuckLS]

3 bar map sensor

[@DsmAdam183]

No vacuum

[@TexasJarhead63]

Try not to get too excited..

[@eirenjoe1513]

I don’t think I can trust this guy with his jb ass welds on that turbo

[@LowbuckLS]

I’ve never claimed to be a good welder but if you’re on a tight budget your welds don’t need to be pretty they just need to work. But if you’re looking for welding advice this isn’t the channel for you lol.

[@lancecrouch8975]

@@LowbuckLS good video really because you showed us how much to adjust it and the results!!!