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About my 1983 Celica with 1993 LS400 1UZ I have not posted in a while since I am not near my car, but it is now running and legal in Illinois. Anyways, here is what is happening. It has no cold start high idle? I think the idle air control is just plain stuck. The motor did sit for 3 years...

My freshly running 1UZ Celica is having one problem. It does not have a cold high idle. It fires up fine, but will die unless you put your foot on the gas a bit to keep the revs up. Once it is holding fairly steady, you can lift your foot and it will stay running, but at just 450 rpm or so until...

How high can we safely rev a stock 1993 LS400 motor? With the stock ECU or a programmable?? Now that my 1UZ Celica is up and running, I am thinking about "improvements". My main use for the car is autocross racing. The events are run on very tight courses made up of traffic cones in a large...

Maybe I should copy this to drivetrain?? I am hoping someone on here has an LS400 trans and some time to take a few measurements for me. I am making up a custom drive shaft, and I need the dimentions of the output flange on the LS400 A341S trans. There is a pin (actually the end of the trans...

I know the souther California group is fairly small on this list, but I was wondering if there was anyone on here who has had to smog check a modded car in So Cal. I recently got my 1983 Celica back up and running with the 1993 Lexus 1UZFE engine in it. I am trying to help out the situation by...

I am finally getting close to firing up my 1UZFE Celica swap and I have a couple questions. I posted this a few days ago, but I see the forum must have crapped as all my posts including pics of the swap have been lost, so I am re asking my questions and should get the pics re-sent soon. I will...

The 93 LS uses the ruber drivetrain coupling at the transmission output. My car (a 1983 Celica GT-S) uses a slip yoke. I know the A341 and 340 share many parts, and people on this list have changed out the output shaft to use the 341 in a 4X4 truck setup. My question is about a much easier thing...

Just as the subject says, I need a 1UZ cylinder head. The driver's side exhaust manifold for my 83 1UZA65 Celica is almost done, but the rear most port had to be cut free from the others during fabrication. To weld it all back together, we would like a head to line it up on and make sure it all...

While trying to find some performance parts for the 1UZ enigne, I came across the Jet Performance web site. They don't list any 1UZ aplications, but they can do customs and have done Supras. All I really want is the rev limit and shift points raised a few hundred rpm. I figure 6500 should be no...

I also posted this under fabrication. My engine swap is well under way, but we ran into a snag. The driver's side (left US car) exhaust manifold of my 93 Lexus LS-400 motor is running into the steering shaft in my 83 Celica. After much measuring, it has been decided that we will cut the...

My engine swap is well under way, but we ran into a snag. The driver's side (left US car) exhaust manifold of my 93 Lexus LS-400 motor is running into the steering shaft in my 83 Celica. After much measuring, it has been decided that we will cut the manifold and re-weld it to clear the steering...

Maybe someone with an LS400 can answer these for me. The engine in question is most likely going to be a 1993. At what RPM does the stock ECU shut down the engine? Is it a brick wall cut out, or a smooth loss of torque? If you have the shifter in manual second, how many MPH is it going when it...

Just a little clarification. I have programmed a few EFI systems with alot of data logging so this is fact. Given a normal constant pressure (over manifold) fuel pressure regulator, the highest duty cycle will occur at the horsepower peak. That is the rpm when the greatest amount of air is...

It looks like I have found a donor LS-400. The car is a 1993 with 187,000 miles on it. It is a complete car that starts so I know it has all the hardware and wiring that I should need. This car was in a fairly minor crash, but since it crunched virtually every corner, the insurance company...

I am still in the research phase of my swap, and I understand the LS400 has a front sump oil pan which should fit into my 83 RA65 Celica. But I have not been able to locate an early (89 - 94) LS400 donor car yet. But my friend has found a (he thinks 94) GS400 that was rear ended. I can get the...

I just started researching putting a 1UZ into an RA-65. I think you have the recirculating ball steering though, the 65 has rack and pinion, so I don't know how much info we can share. I would like to follow your progress though. Gary M.

Sorry for a long post. I just joined the forum tonight as I was looking for info into this subject. I have a dilema. I own a very nice 83 Celica GT-s coupe but due to a series of events, it is in Chicago with no engine and I now live in California. For about a year I have been thinking about...