Ahead of it's time how? Doosenburg had 4 valve 8 cylinder supercharged cars in 1932 making 400hp. Lots to learn out there. Granted it took 7trs. Displacment
Rich F I've come to this party late, but having worked in used cars at Lexus dealership I have to agree sir, I've always had special place in my heart for those engines I seem to notice very little inherent design flaws
Also he forgot to mention that the vh45 actually produce 310 horsepower but it was advertised without variable valve timing because any engine that produce over a certain horsepower i forgot the exact numbers they had to pay a stiff tax....ive had both engines both are expensive but there are more options with the 1uz in my opinion
The rods got thinner and lighter, post 95. And the pistons were changed too to increase compression from 10:1 to 10.5:1.So the non VVT-i are better for boosted applications out the box, but the later engines had better flowing heads.
I own an LS400 (87538 original miles) with a 1UZFE, and ironically it's the first engine that I have not modified and refuse to modify. I love how quiet the LS400 is, it allows me to escape the world while driving and just enjoy the ride. I modded a 1995 Camry by doing a 5SFE/3SGTE merge turning it into a stock boosted 5SGTE, and yet here I am with an engine far more capable and no desire to mod. That being said, the 1UZFE is an amazing piece of automotive engineering, when kept stock and maintained properly these engines are well known to go 1,000,000 miles which is insane, and they are one of the only automotive engines that is certified by the FAA to be used as an aircraft engine.
@@benyounge9672 About 5 thousand now, if I did the work myself it would still be around 2 grand in parts. Each car is different but expect to overhaul or replace the ECU and other electrical components now due to the age.
Man I have the LEXUS 2000 GS-400 with 113 000, and some miles on the engine, got it when this car only had 5 miles on the odominator still like NEW and this PUPPY still run like NEW, LOVE THIS VIDEO keep it up THANKS
It will see you out till the World ends,I picked a one owner,95 LS400 with full option,it had been sitting for two years,needed a gauge cluster,got a rebuilt one from a wreck for a 120$,the thing drives better than most 2020 cars I drive at work,it will see me out !
I have an 89 Celsior JDM in Australia, and its still going with no issues and no major engine or gearbox work that I know off (I've had it for a few years now) its done about 400K Km. Desperately needs panel and paint work, but still runs like a dream. With a quick fluids check, I would have no issue driving it across my country (4000Km) except part of Australia is still under lockdown.
I love my 1uz Soarer. I’ve owned; 2 Holden 5 litre V8s, a 400 Chev, an LS1 and an L98 6.0, a 302 Windsor, a 351 Cleveland and a couple of 360 Chryslers, I’m NOT a psycho but I accelerate flat out in 100 zones up to the speed limit multiple times every day, I’m simple and that’s what I love, So every motor I’ve owned has had rattly valves and been getting a tired after 60-80 thousand kays of this, Enjoyed them but all of them ran ragged and a few of them snapped EXCEPT my 1uz. I wring it’s little neck 4, 5, 6 times a day and after buying it with 80 thousand kays on it and putting another brutal 80 thousand kays on with daily thrashings, it is still a completely smooth, purring little kitten. Supernaturally smooth. SUCH a sweet little motor I love it.. It’s made me value strength and build quality over power. Haven’t had to shim the valves yet. Cool video man thanks!
Theres a class of speedway racing here in nz that uses the 1uzfe naturally aspirated with a single carb. Over 500 hp is achievable and upper rpm limits of 9k. Stock cranks billet rods and dry sump.
Beautiful motor, great sound, good for swaps, strong and light, cheap to boost, flattest torque curve known to man, yet not too thirsty, easy to maintain... There's a reason the UZ series was put in all their trucks/SUVs and flagship sedans for two decades, and the UR that replaced it is essentially an evolution of the UZ design arc with dual VVT-i, direct injection, timing chain (yaaay), free flowing heads etc etc. UZ's are basically the LS of Japan, just the right combo of everything at the right time.
Owned a '98 LS400 for a few years and still recall how awesome that V8 was. So ready to go, so quiet, and I could get better than 22 MPG _easily_. I got 27.5 MPG out of it on a purely highway road trip. All that from a car with almost 300 HP that weighed two tons! If it didn't require premium, I'd say it was the best V8 I've ever owned. I'm still considering sourcing one for a muscle car swap. That's what lead me to this video. Interesting learning more about that engine I so enjoyed.
You mentioned Valve Adjustments...I'm a Toyota MDT and have been with Toyota for 22 years. The only car that I have even had to adjust the valve spec on was a 2002 Avalon. Just 1 Intake Valve on #3. All of us in the shop were surprised because no one else ever had to adjust any valve on any of our engines with the Bucket design. I actually contacted Tech Support about this adjustment so they would be aware. The design is incredibly accurate. Hardened Chips as we call them, the little shim that goes on top of the bucket over the valve. These basically need no adjustment at all. Yes the Chips come in different thickness to adjust the gap but as I stated, they don't just go out of adjustment.
You said that for the 1uz needs a built bottom end to survive boost, and that they top out around 450 hp. Problem with this is that the 1uz can handle 600-700 on stock internals boosted...
^Even Better. I was just going off of a guy named Sean pushing 800 on stock internals. Video says like 450 though before upgraded internals are needed, which seems to not be true. Maybe for the 94+ VVTI engine but if so, it should be stated.
Dont know about the later UZ motors, but the 1UZ also come with forged steel crank and 6 bolt mains (4 traditionally mounted plus 1 each side from the side of the block). This made the bottom end pretty bulletproof. Couple that with forged steel rods (thanks for reminding me @Jason Phillips) and specially constructed alloy/steel pistons and you have a really good base to start some serious tuning from.
How did it end up dying? No oil? It's very uncommon to hear a 1uz being killed. Even running boost through them. There is a stock ls400 with a million miles on it. Very interested how you went about killing the 1uz.
I've got a modified sc400 with body kit, 22" nightrider mags, 5" exhaust system, Bluetooth and Saas sports steering wheel....etc. Ex show car, head turner.
Actually the 2003/2004 Mustang Cobra (Terminator) came with an Eaton M112 supercharger not the M90, which is a tad smaller than the M112 but still has that beautiful Eaton whine I love oh so much :-)
“That 1UZ ultimately ended up dying” *Pauses for a moment of silence for his 92 sc400* I can tell you loved that car I’m sorry for your loss I had one too and I spun out and hit a tree 4 months ago at 140,000 stock too so I feel your pain. Holds memories like no other. Always thought the car having a phone was cool too haha
Alex Christian They didn’t offer a 400 with manual. I’ve had several of them in the 98 to 2000 SC 400 is the best one it’s got VV TI and the five speed automatic rather than the four-speed automatic. It will out run a factory supra
GripRep I had a 93 and in my opinion it’s not even the same car as a 98-2000. I mean unless you’re going to twinTurbo it and change the transmission. But then all you have is a mess on your hands lol and it may or may not even be much quicker than the stock 98.98 Newer is pretty quick from the factory with VvTI and the five speed automatic transmissionAnd extremely dependable. But good luck finding one the production numbers were way way down in 9899 in 2000. I think 93 was one of the most popular production years. Best wishes in whatever you do.
1:35 "also in the Celsior, Soarer...none of which we got in the US" Yeah, we did get them in the US: those two cars are called LS400 and SC400 respectively. Same car, different name for American market. Back then, lots of Japanese cars had different names because the American car buyer doesn't like wimpy (according to them) names like "Nissan Bluebird" (Maxima), "Nissan Gloria" (Infiniti M45), Honda Shuttle (Odyssey) etc etc... Actually in fairness, I should say that Americans like super masculine and powerful names because "Shuttle" isn't wimpy, it's just that Odyssey sounds mega-huge or something. :-)
Sound's like a really great engine, The corolla was tough so you cant kill Toyota, Putting such an engine with a super charger in something as small as a civic hatchback would be blitz.
Technically, the 90-95 VH45DE made 300hp-310hp. It’s from the 1990s and at that time, in Japan, there was “a gentleman’s agreement” between Auto manufacturers that nobody would manufacture a vehicle producing more than 278hp. Like in America in the 1960s, the horsepower rating and actual output were not even close to being the same.
330,000 on mine changed 2 water pumps and timing to stay up with maintanance. Oh and good luck to whoever has to change out the starter and one of these. Other than that my car is great
I would find a stand alone coil on plug set up if had $. We had a 92 SC400. Have to be careful with the square fuel rail, leaks! Also, parts are expensive! But when run right, with flow masters, yeah! JDM a lot cheaper on a budget rebuild. Also nice to have a manual car.
Good vid, I've got a '95 LS400 second owner and only 55,300 miles on the clock from new . Certified. And, completely standard. No more power please, I like the silence, and the waft..
Green socks, I also have a 95 LS, 196,000 miles and still purring like a kitten. I'm second owner, Ebony Teal Pearl/ Dark Grey Metallic combo paint. Added chrome exhaust tips, Gold and Chrome 18in wheels and tires, and Deck lid spoiler. It's an amazing vehicle, more than enough power, comfortable, and dependable. I'm sixty now, have owned several cars in my day. This 95 LS is by far the best. I paid $700 for it, and I had a $3,500 offer that I had to turn down. Truly an awesome vehicle. You don't have to spend a lot of money to make these look good and hold value. They were well built ,and equipped with the best V8 ever built.
>Enter: The Domestic Abuser; the Turbo SC400 that daily abuses his car and runs 781rwhp@25psi with a STOCK bottom end, only internals he's done is use '94 rods
Right the problem here is that a 1UZ-FE with thicker heasdgaskets a ringed block and stronger head studs could take 30 psi of boost and make up to 1000BHP without low compression pistons the 2UZ had thinner rods and the 3UZ was boared to 4.3 litres and thinner rods again and with the VVTI made it impossible to add power to it without major modifications
Why did your 1UZ die? I've had 2x Toyota Soarers and 4x LS400s. Probably my favourite engine, smooth, loves to rev, incredibly strong, reliable and is non-interference!
Martin Brown I agree, I’ve owned my 93 sc400 for over 20 years! In that time, I’ve put an o ring in the fan hydraulics and consumables. My car now has about 119k miles. The ride is great for the model, it’s quiet and dependable. I own a 02 ls430 and I think the quality in my sc is better, just built better. All I have to do is figure out who I leave it to in my will. Oh forgot to mention , I just had front and back seats reupholstered in new leather.
Did you make any mods to them? I’m starting to fall in love with the Lexus family as I already love Toyota’s. Next car I’m going to get is highly likely to be a soarer and id like to turbo and manual swap eventually.
my temp gauge got stuck and i didnt notice. over heated the motor and cracked the drivers side head, but up until i blew it everything was perfect. the previous owner is a good buddy of mine and he planted the car (92 sc400) into a wall and the motor was still fine after that for a couple years, no issues super happy to rev all the way to redline
How the hell do I get my 92 SC400 to pass F'n Cali smog? High HC's (75 of allowed 50) at 15mph dyno. Strange as it passed the high speed by 10% (50 of 56) 220K miles. Still runs like a watch.
sorry had to stop when you said turbo builds need built bottom ends, utter rubbish....if you have the early engine eg the less powerful version that has the thicker rods which is basically a forged bottom end....go look up the turbo cars with this engine on stock bottom ends making 7/800hp at the wheels. also you forgot to mention the 1uz was originally a race engine
keith blackwood i just blew my sc400 up, my temp guage was apparently stuck and i didnt see it over heat, so just watch out for that haha also look into putting a 2uz block with 1uz heads on it, out of the box 350+ hp
Joey Bunten I keep an eye on everything in mine and she's still stock. Replaced ignition coils, radiator, fuel pump and filter. Other than that and oil and trans pan gaskets &filters, haven't had to do much. Not bad for a $700 car I've put 15k miles on. Good luck with your build
it was the first version of the 1uzfe that had the more hd rods an pistons which no-one has noted an it is able to handle about 12-15psi depending on tune an with thicker head gasket able to handle more but ya limited to the cam an rpm's an the ports in the heads, but with custom porting, cams, valve job, blower pistons, cop ignition an aftermarket ecu, you can do 30psi+ @ over 9500rpm an make over 1500hp+
Is this guy sure about the bucket shims needing adjustment. Ive got 250k on mine, and did a bit of research, and everyone says they're known for not needing adjustment and being good to go for a long time.
I want to put UZ on my Ford Sierra. Perhaps I will inflate it a bit with the help of a turbine and / or compressor. What model UZ can you recommend for such a task?
Simple; 1UZ: early ones are non-immobolized, thicker rods, aluminium block and cheap... also utter shit no one should buy these motors... I want em all 2UZ: also cheap but the iron block adds an extra 100 or so pounds, needs internals to take any boost and doesn't offer much power over the 1UZ 3UZ: often expensive and Toyota got a fancy immobilizer, which makes a standalone a must have for these and VVTI 1UZ engines
Its not that difficult, noone makes a harness but its not that difficult to figure out. Also lots of diagrams on the webz. Im doing the swap as we speak if you need any help...
Yes i need the help to start the engine. I have see some video wich connect all wire together. I like to know wich is hot all times. wich is Ign. wich injector and so on. if i can have a video from you. that will have many many views.
Its gonna take at least half a year until Im at that point, im currently in the process of painting the car... have you removed all the automatic trans stuff and environment stuff from the harness? makes it a lot easier. from there on id just suggest googling a lot. I cant tell you which wire is which unless I see the wire in person
I have'nt simplify the harness. maybe we will leave it like that after i find out how to start the engine. the harness will not be in my way. Ofcourse i will be deleting the EGR and Evap
Hey I own a 1998 ls400 I'm looking to add power but stay naturally aspirated what are some good mods I've been looking online and its pretty hard to find parts for this car
Nice vid. I'm friends with the guy that owns the twin turboed 1uz you show in the video. The motor is in an AE86. He has since installed a twin turboed 3uz in it's place. I have a few uz swapped yotas and am now in the process of plling the 1uz motor to replace them with 3uz's. The vvti motors are so much better in NA form over the non vvti.
Hi yutarip. i like to ask you some questions. can you tell me how to increase a LS400 NA power?simple. or is better boost it? Can you tell me how many wire you hade to connect for the oem ecu to work in a swap to start?
The simplest way to increase the power of a 1uz is turbo/supercharge. As far as wiring there are a few essential ecu wires needed to get it running. BATT- 12 volts constant power from battery which holds the memory. IG- 12 volts to the ecu when igniton is turned on. MEL-R - Main efi relay is activated when 12 volts is sent to it from the ecu when the ignition is turned on. The main efi relay then sends 12 volts back to the ecu at the B/B+ pins on the ecu. Then depending on what yesr 1uz harness you have, there are usually 2-3 black and red or black and orange wires that get 12 volts with ignition on. These wiries provide power to the idle control valve, o2 sensors, injectors, maf and other sensors. There is also a heavy gauge black or black and white wire to activate the starter.
Yutarip, There is no one who can put a very nice illustration how to do it? The BATT-12 to hold memory. many don't know wich one is that. most UZ from 89 to 96 have the same ECU. The IG-12 is to relay. but it will be much more helpful with picture or video. just the ecu picture and wich wire have wich function, just the ecu B+ ign i think is only 5 wire important. but i not have the trust without picture or video.
There are three different ecu's used in the 89-96 LS400's. The pin outs and plugs to the ecu's are different. The 92 -97 SC400 has two different ecu's but the ecu's will plug in and run any year.The harnesses are 99% the same but you will get a check engine light if you use the later ecu on an earlier motor due to the difference in the EGR system. I suggest you go on ebay and search LEXUS LS400 ELECTRICAL WIRING DIAGRAM MANUAL USA & CANADA. Purchase the correct manual for your year engine. It will cost $40-$70 and well worth it. The diagrams are in color The colors match the actual colors of the wires in your harness so it's hard to screw it up.I use this manual in all my swaps because the information provided in it is everthing you need.
I’m not sure if your correct about the Toyota versions. I know the soarer came with a 1jz I’m pretty sure all the other version in Japan were the same but idk.
Will you help me out with my build please. I want to go with an Eaton M90... What intake manifold do I use? Please help me! What do I need to get this going. I'm picking out a the supercharger from a junkyard and so basically I need help with some step-by-step instructions.
look up WestPalmGT sc400. Or follow our build at @sc400turbov8 . We built him a turbo kit for his sc400 and is making 781 whp 779 wtq. This out of a stock bottom end.
When I was in auto tech school my teacher actually told us the shim over bucket design valvetrain didn’t need valve adjustment ever on account of it being a pretty reliable system. Maybe I’m wrong tho. Let me know bros
Later models had 2uz fe then 3uz fe then shit got crazy with the LS460 (since by then toyota stopped making sc only sc430 then that died off ) the LC500 looks fucken sick plust that 10 speed tranny have yet to see one on the road
I want to build a 1UZFE and mount it to my existing 6speed manual transmission.. 4x4. Will that work? (maybe with a overhaul?) My goal is to have that V-8 engine torque and fun back in my Tacoma..... (I had a 307 Chevy engine in a '75 Land Cruiser in High School.... yeah, I was an idiot for selling it......) I am a daily driver, short distance, occasional boat towing and some beach driving. Thanks -
I see you just recently posted this, and I'm in the same boat as you! Looking to 1UZ swap my 3rd Generation 4runner and retain 4x4. Thinking of doing a non VVTi 1UZ JDM engine, upgraded head studs and head gaskets. And a simple Borg Warner S366 turbo, upgraded fuel system. I want to run an Auto trans with the turbo, so trying to determine the best path forward there
@@hunterjohnson4954 sounds like you have a nice plan already... I am just becoming enthralled with the idea at this point, (I had a 307 small block chevy motor in a FJ40 during high school... and I miss it, and the V8....) So I'm going to explore and see what it would really take for my 2nd gen Taco.... I'd prefer to keep my Manual Transmission, but I am not sure how it would do attached to the 1UZ.... or if it even can be....
I was looking at getting a early 90's model ls400. Is the 1uz reliable enough to do lite mods and even a small amount of boost, or do I need to build the bottom end first. Looking make roughly 400hp. Not to familiar with this engine.
