1UZ Throttle body on 3UZ

TomDK

New Member
Hi

As the title says.
Is this possible, putting the 1uz throttle body on a 3uz.
Reason for this would of course be to have the cable operated throttle body instead of electronics.

Have to find a new engine, as the 1uz I had bought turned out to be in a horrible state.

Will be running Megasquirt ECU.
 

gloverman

Well-Known Member
Why not put a nicer aftermarket throttle body on if you are using an aftermarket throttle body? An early 1uz TB will need some adaption, a 1uz vvti TB bolts on but is still DBW even though it has a cable.
 

TomDK

New Member
What aftermarket TB would you suggest then? Was only considering the 1uz TB as I now have one lying around with no use of it :)
 

gloverman

Well-Known Member
Last 3uz I did with non stock Tb I used a 90mm aftermarket unit. I only did that as it was going to New Caledonia and i wasn't sure of their skills over there setting up the DBW if settings needed changing. Personally i like the stock 3uz unit. Sets up nicely with a good ecu. Fast operation and plenty of pedals which are available these days.
 

TomDK

New Member
Okay, ca see that it's nok hard to find a 90mm aftermarket TB. But are all bolt patterns universal?

Just so much easier with the 1uz.... :)
 

gloverman

Well-Known Member
The universal aftermarket Throttle bodies (well over here anyway) come with a flange to adapt onto the engine. As you haven't stated which 1uz throttle body you have I dont know about bolt pattern. If you have a 1uz VVti DBW throttle body they do bolt on but still have electronics or if you have a Gen 1 or Gen 2 then they are a different pattern and would need an adaptor anyway. I did a video on youtube which might help


Cheers
 

PeterPete

New Member
Was about to ask the same thing. Thanks for the tip, gloverman!

By the way, new guy here! Whenever I'm taking a break from this particular interest, I'm usually found at home, treating my Pomeranian to his dog bone and watching TV with my brother. Such a simple, yet, happy life. Cheers, everyone!
 
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Jamie

New Member
Last 3uz I did with non stock Tb I used a 90mm aftermarket unit. I only did that as it was going to New Caledonia and i wasn't sure of their skills over there setting up the DBW if settings needed changing. Personally i like the stock 3uz unit. Sets up nicely with a good ecu. Fast operation and plenty of pedals which are available these days.
Hi How would I use the current 3Uz unit but converting it to cable without replacing the whole unit etc. Thank you
 

cribbj

"Supra" Moderator
Staff member
Okay how would I do it is what I was after the engine not going in your wagon.
Jamie, I think Gloverman was pretty clear that he doesn't do this type of conversion, and I doubt that anyone else on this forum has either, so I think you're on your own if you want to go this way.
 
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