HUGE POWER 4JJ3 ISUZU D-MAX! How did we do it?

Full run down on what it takes to get big power out your 4JJ3 engine that has been released as a successor to the 4JJ1. This engine is found in the Isuzu D-Max and Mazda BT-50 in the Australian market.

Mods Fitted:
HD Auto +40 Injectors
Front Mount Intercooler
PKS 44MM Turbo Upgrade
LUXFAB Exhaust System
Custom Dyno Tune
NPC Performance Clutch Upgrade
Custom Airbox and Snorkel

[elwoodroadsmusic]

I got my 4jj1 remapped and a 3 inch pipe fitted. Making 200 and is absolutely fantastic towing. I've looked at a full build for fun but yeah bit hard to justify when it costs as much as the car :) One day maybe tho

[ezrahenry]

Great work man, definitely would like to know more

[sphinx]

I have all the bolt ons on my Nissan Navara 2022 model

Made 140kw at the wheels but coz it’s twin turbo and the way they work no options available for them what can I do ? Turbo wise ?

[clivecook]

Hey Hayden. Now that the Torque is at 700NM. Do you reckon the Gbox can handle that torque?
Does anyone know what the Gbox is rated too?

[baron]

Do these 4JJ3’s snap cranks like the 4JJ1’s do when pushed over 250hp?

[FunTravel-jmss]

Are you concerned at all about it being illegal to delete dpf?

[lauchlanmenegon]

my 2018 dmax needs a new turbo.. if i fit a gated turbo, can you delete the vacuum control boost actuator and make the gated turbo work ?

[Heef]

Hey you mentioned you work in Rocklea but what is your business name? How do I contact you?

[connorcarney]

How much power can a stock 2018 4jj1 crank take ?

[stevegoodwin]

What was the AFR for those power and torque numbers?

[FNBADVENTURES_FNB]

I've got a 2015 Isuzu dmax 4jj1

Catch can
30+ injectors
Custom fuel rail
Munji powder coated stainless intercooler piping
Ecu shop junior double touch combo
Remap
Egr delete
Heat treated breaks and discs
Turbo back 3 inch exhaust straight through no mufflers
Was running a billet flywheel and Npc clutch but couldn't stand up so now running crome molly flywheel and exceedy high performance clutch
3 inch dobinsons adjustable lift with 650kg rated rear leafs and long range shocks
Munji diff drop
Dinoed for bottom end and torque perfoming 260hp on 32inch MT tyres and on one of the ecu touch screen setting I've got a touring option.
I've got a PDI intercooler on the way
What turbo upgrade options have you got bigger than 44mm turbos As I'm still running stock turbo and do you have the software to tune ECU SHOP ecu's ?
And what stroker pumps do you have and aftermarket headers ?

I constantly carry alot of weight
Single cab with full size canopy loaded and rooftop tent and often tow a 5.5m boat so i want at least 300hp to 350hp

[isaaccknight]

Can you use a 4jj1 exhaust manifold on a 4jj3

[matthewrattenbury]

how long does it usually take to do a custom tune

[kenxx]

Hello just wanna ask what size of exhaust is better for my mux 4jj3 engine. Planning to run stock just the full exhaust and tune. Is 3” better or just the 2.5”

[Mavo]

Thats really pushing it hard with those numbers verse the conservative tunes we see around the 150-160kw and 530-540nm... they BIG numbers for a 4j

[chilskater]

use 2 rotor high pressure fuel injection pump + external pump....

[Stevegrande]

Double the grunt surely it will reduce reliability ? (Not having a go at your work) Are they pretty strong internally from the factory ?

[rvnuxmint]

Can a 4jj3 stock internals handle 500hp because a stock 4jj1 internals can handle 500hp?

[Skip]

Always make sure when you do a dpf or dpd delete you put empty cannister in your exhaust system. Trust me theres police out there trained to look for it and with a dummy can/expansion chamber its easy to pull off 😂. My mate go a 5k fine for deleting his

[sjlim]

Hi just a few question. Is the stock turbo of 4jj3 is f44 already? I remapped already mine, the psi is 22.5 set by the tuner. Is it safe? What is the safest and the maximum psi of the stock turbo? Cheers!.👌🏽