1zz Throttle body review/tips

[ilikerice]

Originally Posted by tk-421

I also did this mod and recommend it for sure. I had to modify the OEM hose slightly by removing a very thin layer of rubber with a dremel. No biggie and worked like a charm and did a coolant bypass with a copper joint.

I also have a high idle for around 60 min or so. I've had it that way for many years and I've had zero problems, FWIW.

@HANZO_187: There's a couple of very good threads about this info. Just keep in mind that some 1zz tb's work without having to swap chips (located at the base), while others apparently require it. I did it in about 10 min (maybe less) by using a drill with a very narrow bit (so that it only destroys the rivets and nothing else). HTH

you mean 60 seconds right?

As far as the hose go, you can use the hoses that are on the car, just swap them around. Make sure you have a pan under the car to catch the coolant when you pull the hoses off. you can use a used spark plug to plug the hose when you disconnect them from the throttle body and try to be fast. If your not fast enough, its going to get messy.. lol, but its not a big deal at all. I just zip tied them together to keep them away from the shifter cables

Now, on the stock manifold, I measured the rubber "O" ring on the mani-throttle body. I did not have to make a gasket. The 1zz throttle body fit just right where it sealed up with the throttle body. It was close, but I did not have an issue with any leaks. I used the existing O ring on the manifold.

[tk-421]

Originally Posted by ilikerice

you mean 60 seconds right?

Yes, yes I do.