just installed 1zz throttle body

[WeeYari]

Originally Posted by 2009Toyotoad

If the route to forced induction via turbocharging calls for bigger injectors and a bigger TB

Where are you getting that information on the TB from? Most S/C and turbo implementations on the 1NZ that I am aware of have not touched the throttle body. In a lot of cases, yes larger injectors have been installed, but stock TB is left in.

[2009Toyotoad]

Originally Posted by WeeYari

Where are you getting that information on the TB from? Most S/C and turbo implementations on the 1NZ that I am aware of have not touched the throttle body. In a lot of cases, yes larger injectors have been installed, but stock TB is left in.

The Zage Turbo kit has the additional option to be run with the 1ZZ TB. I'll see if I can find that link again. I thought it a little odd myself but as I indicated I'm just starting to understand the route to forced induction on the 1NZ-FE.

[invader166]

Originally Posted by WeeYari

Where are you getting that information on the TB from? Most S/C and turbo implementations on the 1NZ that I am aware of have not touched the throttle body. In a lot of cases, yes larger injectors have been installed, but stock TB is left in.

WeeYari's right. You don't really NEED to have a bigger size throttle body if you're going the forced induction route since I think the Zage turbo kit and Blitz supercharger are designed to work with the stock TB. At the same time I don't think that would that really hurt anything either. My idea was that a bigger TB would reduce restriction, and thus increase the efficiency of the supercharger or turbocharger. I don't know for sure if you'll be seeing a huge gain by doing that though.

However, if you were to get a bigger size turbo or supercharger that can supply the engine with that extra air that the TB allows for, your could be seeing some big numbers. (with proper tuning of course)

Can you imagine, fitting a GTX turbo designed for a 1.8L corolla on a yaris.