HOW TO : Increase the boost on your 4D56T Engine
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- เผยแพร่เมื่อ 3 ต.ค. 2024
- My video of modifications made to a 4D56T engine in order to increase the turbo boost pressure.
(This mod will be good along with an exhaust system and a snorkel)
It's also a good idea to install an EGT gauge.
Stock 4D56 N/A 1995. Transformed to a turbocharged a few months ago with stock fuel pump. A couple days later Turbo fuel pump installed and the difference was extraordinary. (No intercooler YET). Boosted to 1.1bar appx. 16psi a few weeks ago from Wastegate valve.(Gauge installed) Everything still OK. (Intercooler needed) Rear exhaust muffler removed today. Everything OK till now. Still intercooler needed. F...g intercooler... When the big Boom comes, WISECO pistons and rods and and and will be on the way from U.S to CY. :) I enjoy it when everyone assumes it's a N/A Pajero and I overtake them just like that... :) And yes, this is a video I've watched a year ago after buying my stock 4D56 and yes, it gave me some ideas...
Antonis Petrou I’m glad it gave you some ideas. I bet the non turbo was like a slug. Bet it goes ok now. In Thailand there’s a few big turbo 4D56’s running big boost in Tritons. I’d be keen to see how much they take before they blow.
@@PERTHSCOOTER07 Intercooler finally installed. Much better now. Boosting @1.1 bar at high revs (3500+). No ECU to have a boost controler... Next step is going from TD02 turbo to TD04. Will let u know when the piston pops out from the hood like a rocket...
@@antonispetrou4472 τρελός είσαι
@@antonispetrou4472is your engine still holding? I did the same and it is amazing how much improvement the turbo brings. I will modify the fuel pump and install the intercooler.
My daily driver since 2002, a fucking tank. Even though it's super expensive to maintain it in Brazil, I still have it. More than one million km's and runs great, everything works. I just need to change the turbo, which isn't working anymore :(
I also have a combat, short Pajero 2 4D56T on bighorn 33, crankshaft without counterweights, very fast👍🏻
Without counterweight? Is it worth it?
Thanks Scooter for this!
+Stevie-Ray No worries mate, hope some people can benefit from it.
Awesome mod! i have a Hyundai Galloper, which is almost like a Pajero. Even the engine is almost the same. How does your turbo sound after this mod? What happens if i just install that "square cap"? Thanks!!!
-TwinTurbo250 Productions- adding the square cap alone will do nothing. This just allows you to turn up the boost, as the thing you're replacing is to prevent over boost as a safety feature
Great video, thx for sharing!
Any idea whats the standard wastegate settings? Im just about to do same thing with my pajero! But I dont really understand how is this going to work, sorry 🙃. If the factory settings are 10psi and I set my boost controller at 15psi the wastegate actuator will open at 10psi anyway right? Im sorry, I just started with diesel "tuning" and everything is new for me😁
Cheers from Portugal!
SURF-4-LIFE the boost controller restricts the air pressure so yes your wastegate will still open at 10 psi, but there could be 15 or 20 psi at the manifold, but the boost controller is only supplying the wastegste 10.
Thank you!
Hey mate looking to do this tomorrow what size bolt replacement do I need and what size wahsher and 2 washers is that each hole
fato ozzy hey mate. The standard bolts are long enough and one washer on each bolt is enough. Bolts are 12mm head (can’t remember thread size. So just a couple of washers that will fit over a 12mm bolt.
Better get your self a boost gauge. I did this on my 2.8 delica. Them ebay bleed valves are rubbish and dont work, tried 2 different types. Yes they increase the boost pressure but its uncontrollable boost. Mine was hitting somewhere around 25psi. With a proper boost controller you don't need washers. Just stick to changing the boost pressure with the washers, cant remember what thickness washers I have in at the moment but Im happy with my boost set at 15psi
Homer Simpson must be different types. I've had mine like this for probably over a year now and it makes 18 psi all day everyday
That might be your max psi. Pull the tube off and see
Homer Simpson no. It makes around 13 with the washers and no boost tee and I've had it up at 20 but knocked it back a bit.
Then just use thicker washers, All I'm trying to say is telling people to use a bleed valve is gonna kill someones car....... you haven't got your gauge on the same same line as the bleed valve have you
Homer Simpson yes. All just before the actuator.
hi, i have an 89 triton non-intercooled, i was wanting to up the boost, im not sure what stock pressure is but i want more. do you have to do any other upgrades to fuel system or ecu to take advantage of the extra boost pressure? im not familiar with diesel's and tuning. i only want a little extra grunt out of it.
Hi there, its not advisable to up the boost pressure on the none intercooled model as more boost mean more heat, and without an intercooler adding more heat is a bad idea. You'd be best adding an intercooler as this will give more power due to lower intake temps, then you can think about upping the boost a bit from there.
Hey great video! I have a Mitsubishi just like yours but a 99 model. I was thinking about doing the same to my car as im facing some isues right now. I can pull 14-15psi right now but after that the valve goes off and I losse a lot of presure (the psi goes down to like 8). The only thing that worries me is that if I do what you say on your video, something might blow inside my engine due not having a pressure relifee. How high can I take the PSI without worring of blowing soemthing inside? THANKS A LOT!
I recommend running around 16. You can safely run 18 but start losing thermal efficiency around 18. You’ll need an upgraded intercooler to be effective
@@PERTHSCOOTER07 Thanks a lot for replying! I was going to do it today, but I thought that I should post my concerns first. Crossing my fingers that the turbo wont pull more than 18psi after changing the valve
JAMG92 is it a stock turbo? You’ll be lucky to push over 20 on a stock turbo
@@PERTHSCOOTER07 Yes it is a stock Turbo with the intercooler and everything. I boght this car about 9 months ago and after doing some maintenance to the engine and cleaning the inyectors heads and changing the bad ones, the valve started going off when pushing it at full throttle up hill and so on. My guess is that the engine is pulling more power after that? If it wasnt because of that i wouldnt be thinking about doing this
@@PERTHSCOOTER07 Yeah. I have mine sometimes almost reaching 1.4-ish (20.3) occasionally and usually maxes out at 1.3 (18.8). I'm clearly low on fuel supply at this point, so next I will adjust the fuel screw and reduce boost compensator spring preload and see. Still have stock intercooler, but that is on the list.
wait what im confused! what did you do exactly? usually when i see people adjust boost they are changing the tightness of the springs and such. you just changed a big screw and added something. (im still learning and i do not know very much.. obviously)
Hi Nick, The big screw thing prevents the boost from going above (approx) 14 psi, so without removing this you can't increase the boost by much. The washers under the wastegate actuator are the equivalent of tightening the spring like you said. This will give you maybe 2 extra psi, but thats about all. The something that I added was an adjustable boost Tee, which makes the boost adjustable to whatever psi I want it. You just need to be careful not to get carried away and wind too much boost in! Hope thats explains it a bit clearer.
+PERTHSCOOTER1 oh that makes much more sense. thank you kindly!
would it do anything if i just put the washers in without removing the wastegate actuator?
If you mean not fully removing it yes. You leave it connected at the flapper end. And just unbolt the top
@@PERTHSCOOTER07 i mean does putting the washers as spacers to increase the boost back to "factory" levels work on its own or does it have to be done by blanking the wastegate actuator with the squareheaded bolt you put in , cheers.
el f1del yes you can do this. But if the boost levels haven’t dropped much from factory you’ll end up increasing it more than stock and running the risk of triggering the bypass valve
Can you just weld the hole up on top of the plug?
On the pressure relief? Sure
Hey mate u would have a link of some sort for the malleable square head would ya
joshua vidich just type ‘1” malleable square pipe fitting’ into eBay. Comes up with heaps of options
@@PERTHSCOOTER07 ok no worries thanks and for the washer side if this is it 2 washers per screw being 4 in Total or is it one for each screw
joshua vidich 1 for each side mate
Can u do a tutorial on how to install boost gauge?
One day. I don’t have anything that needs one fitting b
How much power can you add before the auto transmission has problems?
1911brian wouldn’t have a clue. Mine is manual
if you use the boost T do you need to shim the waste gate actuator?
You don’t have to but I would definitely recommend this as the tighter the spring the more stable the boost will be.
hi,
in how many bars is the turbo adjusted from the company?
Zaharias Hatzakis hi I think it's 12 psi which is just under 1 bar
I just want my 4d56t to make 10-11psi I’m at 9psi, do you think removing the plug is necessary in my case? If it bleeds at 15psi that doesn’t worry me I’d like to run it at a lot less
@@AMJB100000000 won’t need to blank the plug. Just use the washers under the actuator and that should bring some boost back
how does the boost pressure adjusting T work?
It bleeds of boost pressure away from the wastegate which keeps it closed so more boost pressure builds
Hello friend, good video, you do not know how to achieve the sound of the turbo flutter in this engine, I am running a TD04 turbine at 1.1 bar.
What I need to do it?
Unfortunately you can’t. Turbo flutter is caused by back pressure on the turbo when the throttle is closed. Seeing as mechanical diesel pumps don’t use a throttle plate you can’t get the flutter
@@PERTHSCOOTER07 mine flutters?
@@Tasfarmer in a mechanical diesel 4D56?
@@PERTHSCOOTER07 only just got it 1990 turbo diesel carby
@@PERTHSCOOTER07 running 11psi
hey i'm driving a pajero sport gls 2.5 4d56t.
i'm looking to mod my engine, but i have 1 question.
would a ajustable blowoff valve work the same and sound cool aswell?
Fer Lamkin hey mate. What year is it? Same engine as in the video or common rail ?
Unfortunately blow off valves don't work as these engines don't have a physical throttle plate that closes.
2003,
yeah i took the turbo of the car and did some minor mods to get a higher boost. cant get any higher then 1,2 1,3 bar so i'm thinking about a bigger turbo ? but some guy told me the engine (4d56t) cant take a lot more without internals failing ;P
Fer Lamkin I've seen a few go the next size up TD04 with no problems.
okay do you know a nice size ?
or should i just replace the internals of the turbo from 10 t to 15 t
Fer Lamkin 13t is a good compromise
hi m8 regarding intercoolers can you fit the one from the 4m40?And will it be a sufficient uograde over the standard intercooler?
I think they’re identical. Better off going aftermarket
@@PERTHSCOOTER07 ok m8 cheers for the response😁
hi, i have a car that has 4d56 non turbo in it and planning to install a turbo in it, does anyone knows how and what kinds of thing do i need to make this job work? i just wanted to make some power out of it because it felt a little lacking in power especially when doing uphill.
iScream hi there. You will need: turbo, dump pipe, air intake pipe, inter cooler and piping, both manifolds. I’m not sure if a turbo oil feed and drain is there on a non turbo. This is where you’ll run into problems. Also the fuel pump will be different. You can still use this pump with the fuelling turned up but will be Smokey off boost. Sometimes easier to just engine swap.
@@PERTHSCOOTER07 ohh, thanks a lot, ive seen guys put turbo without intercooler in their 4d56 engines but i am afraid of bumping into problems specially toasting the engine, i will consider an engine swap for the best of it
Hi mate, is there a way to make the turbo kick in earlier? I live in an area with 100km roads and when I pull out into traffic im staring at the rev's waiting for the turbo to kick in. Thanks Matt
Check out my video on how to adjust boost compensator. Not sure if your model will have one but it brings the fuel on quicker which spools the turbo. Also if you replace the factory intercooler hoses with alloy and silicone pipes it reduces hose expansion which reduces lag
@Dopey Dope 😆
how to increase boost over 0.7 bar on stock turbo? i use 4 washer under actuator and the max bost is 0.7-0.75 bar.
You need a boost tee to increase boost further
@@PERTHSCOOTER07 you mean i need a boost controller?how much pressure will increase maxim with boost controller?
@@raul16nyc a boost tee is very cheap. Not like a boost controller. It’s a mechanical device not electronic. Unless you blank off the pressure relief valve you won’t go more than 14psi
@@PERTHSCOOTER07 i have a boost tee like yours in the video,i blanked the relief valve and today i think i mount the tee.what pressure i think achieve with tee ?
@@raul16nyc aim for 16psi Max on stock turbo and intercooler. Any more and you’ll just be pushing hot air
Anyone know if it's the same on the 2.8 engine
harry hall exactly the same except the pressure relief valve is down the back of the manifold.
Can ya do this to a 4m40?
Dan T yes mate. Exactly same principle
Anyone knows if its possible to direct inject this engine with parts form a newer Misubishi Triton/Challenger (L200/Pajero Sport)? or there is modifications to the block or stroke?
Maybe ill just do an engine swap.
Ignafiltro Sanchez as a very minimum you'd need a cylinder head, high pressure pump, wiring, ecu. Be easier to use the entire 4D56 crd engine.
How much bar work you r pajero turbo after the upgrade?? And i suppose to put more boost must open little morthe petrol...
Michael Agathangelou I'm running 17-18 psi which is around 1.3 bar I think. I have increased the fuel by turning the fuel screw on the pump half a turn.
PERTHSCOOTER07 1.3 bar mate?? Is not very high and dangerous for engine break up??
This engine can take a lot more boost and won't break apart. For simple mod like on this video, the first thing will break is the turbo, 1.2-1.3 bar is what this turbo can handle. This engine can do over 3bar+ with stock internal, but you'll need a better clutch, a turbo that can handle that boost pressure, and lots of cooling mods for sustainable run.
Michael Agathangelou i am work 2 bar 1 year and is ok
@@PERTHSCOOTER07 where is the fuel screw i cant find it
I'm running a Sport 2.5 tdi and turbo is variable vane type so no relief valve as such to remove or mod. How would I adjust the boost?
Adjust the vane? Or perhaps space out the vacuum actuator?
Most common rail Diesel engines require an ecu retune or an add on chip to up the boost and fuelling as it’s all controlled by the ecu.
@@PERTHSCOOTER07
Sorry.. Late response. This vane turbo is controlled via Solenoid valves on the cam cover (which are then controlled via ecu). The "4d56t" isn't a common rail diesel.
@@harwoods11 Paj sport here in Australia is called a Challenger and runs a common rail 4D56T
I have the same engine in my Shogun Sport. Do you know what stock boost is and what boost you are running after these changes. What's safe boost levels
Dan Culley hi mate. Stock boost levels are around 10-12psi. Not sure exactly what the specs are. Most unmodified ones will be tired and running around 8psi. The washers under the wastegate will bring it back up to 12. As for max boost, well an adjustable boost controller will set that. You’ll need a boost gauge to make sure it’s safe. I ran 18 psi with no problems but know of other running around 22. I wasn’t game enough to run that as I had no egt gauge and the engine had done 360k
@@PERTHSCOOTER07 Awesome, thanks man. I've already done the washers under the actuator bracket but can't find any info on safe running EG temps or what the little turbo can take day to day. I've already upped the fuelling on the pump and have a bigger intercooler, just want more booooost lol. Also, do you know what the pressure relief valve is set to blow at?
Dan Culley yes. I blanked mine as it seemed to be around 14/15psi. I reckon 18 psi would prob be max for a daily driver. Do a bit of research into egt’s and make sure you research diesel as petrol egt’s are different. When you add petrol it cools the temps. When you add diesel it increases the temps.
@@PERTHSCOOTER07 Sweet. Thanks buddy, take it steady.
@@PERTHSCOOTER07 in this case, what would make the EGTs hotter: increasing fuel at the compensator and leaving the boost stock, or increasing the boost and leaving the fuelling at the compensator stock? Thx
BIG NO!!! even though you increase the boost pressure on your 4d56t engine, you have no clue as to by how much pressure you are running it. If you decide to increae the boost on your engine at LEAST do it the right way, get a boost pressure gauge, waste gate and Gradually increase the boost. Then on the fuel pump slightley increase the amount of fuel going to the engine. and keep emissions in check by MEASURING them. there is No other way than to do this in the workshop with the proper tools.
soundprosound what you’re saying is the best way. But not everyone’s willing to spend big money on cars that are nearly 30 years old. I took the risk. It paid off. I’m happy and would do the same again.
Maybe you always repair at workshop😅