4.9L 2uz Turbo build, I have questions

Now that I have you attention, Truck is an 00 Tundi AC 2wd. I am planning on doing a junk yard 2UZ engine build and throwing a turbo with a FMIC on it, same one this guy in this thread posted
https://www.tundras.com/threads/so-i-want-to-install-a-turbo.78044/

But my short falls are finding a piggy back ECM, as I know the 00 to 02 ECMs are damn difficult to tune right. I want to go the HalTech route but unsure as to what to get. And knowing if the factory 3 speed OD transmission will hold the power. This is where I need some help.

Cause I know y'all are gonna ask:
Engine parts list is going to be simple. JE forged H beam rods, want to bump it up to a 147mm stroke if possible, but a full mm is a lot.

Denso 12 holes, and a Walbro GSS352G3 350 LPH pump

If not either Weisco or Eagle 10:1 pistons and bearings, 0.02 over factory bore.

Head will be cleaned up and decked as little as possible, and haven't decided on head gaskets yet

Factory cams, maybe solid lifters conversion.

Just looking to push 450 500 HP and like 450 to 500 TQ at the FW.
Building a tow pig not a race truck. Already did a 4.08 rear end swap, and I'm going to be putting a locker in it next month.

 

Check up on the Aussies. They love the 1UZ and 2UZ platform. I'm sure there's a ton of info on 2UZ non-VVTi engine management.

They're also popular with the Supra crowd. Iron block V8 in 4.0 and 4.7 flavor + boost.

Lextreme is a good group for info. Check them too.
https://www.lextreme.com/forums/

 

URD has some ECMs as well, but the website has shown out of stock for a while.

https://urdusa.com/performance-electronics/

 

Can also go Megasquirt route.

https://megasquirt.info/

 

You say that..... But sadly there isn't hence I am here lol. Im the type of guy who will exhaust all available known avenues before I ask questions.

 

I forgot about MegaSquirt, takes me back to my early VW days

 

Understood. I know there is a guy roaming around that website who has a built turbo Tundra pushing out crazy power. Can't remember what ECM he's using but stumbled across him doing research.

Here he is:
https://www.lextreme.com/single-turbo-toyota-tundra/

From what I read a couple Lextreme turbo Tundras are running Unichip.

 

I've been starting to put my toes in the stand alone territory recently. I would compare all the options obviously, but see what different ECMs have to offer and try to understand why that is a benefit.

For example, my 2JZ build I just swapped an ECU Masters EMU Black into it. Very easy to wire, decent price, and has some cool features like wideband O2 driver built in, built in MAP sensor, EGT doesn't need a signal amplifier and directly talks to the ECU, dual wideband inputs, dual knock sensor inputs, etc. However for a V8 it may not be ideal since it can only directly drive six coil packs (but can do eight injectors) so you'd have to run a waste spark setup.

The Haltech has similar capabilities, maybe more. Another thing I would look at is a Holley Terminator or Dominator. I have a Dominator controlling a LS and I would think a UZ would be no different, though not sure if it has the modularity to get the timing sync with the crank.

A Motec can do anything but is expensive and needs custom code to run so I wouldn't even consider it.

A mega/micro squirt is probably the cheapest option, but not sure how it compares for feature set.

Another question is transmission control, I don't know how complicated it is to control an automatic trans and if a ecm has to be specifically setup to control a specific transmission, I would imagine so. The transmission control may be your limiting factor.

I would make a list of features you want and then start researching. You want A340F(?) control. You want dual wideband inputs. You want a EGT input. You want 8x injector control. You want 8x coil pack control---or is waste spark okay? You want CAN output for a digital dash, or a piggyback? You want something that can setup custom crank trigger/timing. Whatever else, then go through and see what ECMs fit into the list you come up with and then narrow down that list. I imagine there's only 2-3 ECMs that can actually do what you want.

 

All I really want is for the piggy back system to run the engine. I am not going to be tuning the truck. Again not a race truck a tow pig. So all I really need is the two to talk, run the turbo, fuels system, intake and exhaust temps, dump the BOV at the set psi and talk to the transmission. It would be better if I hand a manual but I like the truck as an auto as my other 2 cars are both 5 and 6 speed bang boxes. I don't anything over the top. Trying to go simplistic. So mega squirt isn't out of the question. But I have had good luck with HalTech in the past and I am learning that way. I have emailed both companies so I can talk to a tech head to help sort me out.

 

https://bulletcars.com/product/xede-engine-management/

Maybe?

For the transmission check out Transgo shift kit. I've got one new in box that I haven't decided if I'm going to use or not.

 

Doesn't say if it's batch fire or waste spark for ignition/injector.

 

Getcha some flappy paddles.
https://hgmelectronics.com/pages/toyota-lexus-a340-a341-a343-transmission-controller

 

I don't even know what that means

I know when talking about dual electrode spark plugs people sometimes reference a waste spark

 

Some engine management systems can only control a limited number of injectors, say 4 injectors and 4 spark plugs. So, for each power stroke it will fire two spark plugs and squirt two injectors.

Waste spark is where it will fire a spark plug on a 'dead' cylinder the same time it fires the correct.

Batch fire is where it fires a bank of cylinders at a time.

 

It means each coil pack fire 2 plugs whether they need it or not.

^ his explanation is better.

 

That doesn't cause misfires?

 

The engine doesnt care if the sparkplug fires during the exhaust stroke.

 

The engine doesn't care, no. Shouldn't be much combustibles left after the power stroke. With ECMs like that you usually pair your coils with cylinders that will be on opposite end of the firing order.

Even if you have multiple injectors squirting against closed intake valves. The extra fuel will just get pulled in during the next intake stroke.

 

I should also note a lot of well known aftermarket ECMs use this strategy.

Holley and Haltech come to mind. Most stand-alone universal ECMs are built just to manage 4 injectors and 4 coils. They're cheaper to produce this way and they work just fine.

The ECM will aim for your programmed A/F ratio and ignition curve by looking at wideband o2 and crank/cam reference. It will automatically account for the extra fuel injected at a closed cylinder. This is regardless of how many cylinders you do or don't have. As long as the mass flow rate of air is accurate and injector size is configured correctly.

 

Apexi powerFC?

 

A guy on the ih8mud forums built a 500 hp supercharged 2UZ. He used a standalone MaxxECU.
https://forum.ih8mud.com/threads/2uz-engine-build-300-to-400-to-500whp.1322248/

 

Mine doesnt have any trouble towing bone stock. I didnt wanna pull the popup over 65, but the 80mph (unlimited) speedlimit made that kinda hairy. I could get in line with 60-70mph trucks, but every hill those dudes would drop to 50, and the tundra wasnt happy about climbing hills that low. I'd trade a little rpm for a little speed all day. Bet i'd love some 4.30, or 4.56s and big tires.

if you keep a 2uz below 4500 rpm it'll do all it can all day every day. Small engines like to rev, and compression & you wanna take it above 5krpm, and things get expensive enough until the block is the weakpoint. Get an aluminum GM 5.3 from a 07-08 (not sure of the years) z71 and afford some extra payload & more everything than the 2uz will ever manage.

if you're diehard toyota, lets swap in a 1gz v12. They used a340's, too.

 

Why do all that. Pop in an early 1UZ and turbo the bastard with MLS gasket and head studs. They've been proven to handle 700hp on a stock bottom end.

 

I have a Haltech elite 2500 in the Crown Vic. I don't know much about it yet, but it's running a boosted engine fine. Granted, it has a 6spd so the car thinks it's in neutral all the time. I don't see and transmission controls on the features though.

 

What did the tuning shop say?

 

They're looking at it now.

 

A turbo? Tow pig? Why not put a blower on it with air to water intercooler? You wanna tow pig, thats how to make one into a tow pig with no lag and insane amounts of low end low throttle percentage torque. You are almost at peak torque with a whipple or eaton at like 2500RPM, where as the turbo wont even be in boost yet. I have built multiple "toys" with turbos and superchargers, for racing, foot to the floor, turbo is better. For towing, part throttle, a supercharger is better. This is just how i feel, i dont want you to think you cant have fun with a turbo setup but its not the way i would do it if i was looking for a pull toy.

 

I don't think you know how to tune a turbo set up if you're worried about lag. Lagless turbo, low delay, systems have been a thing for a long long time now. You can still have it if you're running a massive turbo system, but if all your running in a 30mm set up, run VGT turbos and you'll start to see boost at like 1300, and should have full psi by 2100 to 2400 RPMs. And that should carry me through about 5700 to 6100 rpm, optimal boost being between 4800 to 5400 rpm.

But by all means if you'd like to buy me a super charger I will gladly run it. And you don't need a water to air exchanger, a RPM tripped water meth injection system would be a better choice in combination with a standard air to air FMIC. But either way the block is going to need to be built to handle the 12 to 15 psi I am looking to run.

 

Ok call out time, some would say asshole time. Don't care people need called out.

So I'm just going to go out on a limb here and say that 1 seeing as you don't want to rebut or openly continue an educated conversation about how I'm going to build MY truck that you're just here to shit post. Or is it in your little groups of friend you just "know the most", aka a know it all?

And two shit posting will get you removed from this forum permanently and pretty fucking quickly once you start annoying the right people. Lots of the mods here can't take a hike to save their lives and have a pretty short temper/ thin skin. So keep that in mind for down the road when you start to come at other people's builds/ projects, rigs and shit. By no means respect all builds absolutely not however when somebody has a driven and noted and clearly experienced game plan such as myself maybe you just listen, you might learn something. But you kind of ran into a brick wall on that one didn't you.

You weren't expecting somebody with actual education and life experience doing this were you? Continue on smartly their peanut gallery. Smartly indeed.