RS Intake Manifold,airbox mod and 1zzfe throttle body/injectors

[mitch9521]

huh, I didn't realize the manifolds were different.

the USDM 1NZ one is 17101-21080 while the "RS" manifold is 17101-21070. Guess its time to go on beforward and grab one off a Toyota Ractis or Vitz RS lol. I already have a second gen Ractis cluster in my 2014, may as well run a Ractis manifold too

[Compeer]

Originally Posted by mitch9521

huh, I didn't realize the manifolds were different.

the USDM 1NZ one is 17101-21080 while the "RS" manifold is 17101-21070. Guess its time to go on beforward and grab one off a Toyota Ractis or Vitz RS lol. I already have a second gen Ractis cluster in my 2014, may as well run a Ractis manifold too

Have you already done the 1zz-fe throttle body and injector swap?

[mitch9521]

Originally Posted by Compeer

Have you already done the 1zz-fe throttle body and injector swap?

No. Stock injectors and TB, the throttle response doesn't bother me after I swapped in the Lexus IS250 pedal that gets rid of the dead spot and makes the pedal heavier feeling.

[Neinris]

Originally Posted by mitch9521

No. Stock injectors and TB, the throttle response doesn't bother me after I swapped in the Lexus IS250 pedal that gets rid of the dead spot and makes the pedal heavier feeling.

I've thought of doing the pedal swap in the future. Would you share how you mounted the pedal? Did you make an adaptor plate?

[mitch9521]

Originally Posted by Neinris

I've thought of doing the pedal swap in the future. Would you share how you mounted the pedal? Did you make an adaptor plate?

The gen 3 Vitz RS has its own OEM pedal bracket so I just ordered one from RHDJapan. I don't know if it will work in a 2nd gen though.

Part number is 78114-52020.

[Neinris]

Originally Posted by mitch9521

The gen 3 Vitz RS has its own OEM pedal bracket so I just ordered one from RHDJapan. I don't know if it will work in a 2nd gen though.

Part number is 78114-52020.

Thanks! Does it look like something like this? If so, did it feel weird that the pedal moved forward? The second and third gen's throttle pedals are the same btw.

[mitch9521]

Originally Posted by Neinris

Thanks! Does it look like something like this? If so, did it feel weird that the pedal moved forward? The second and third gen's throttle pedals are the same btw.

Sort of, its metal though and raises the pedal up about an inch which makes it almost level with the brake and clutch, makes heel-toe a breeze. The Lexus pedal I pulled out of the junkyard had that spacer, I didn't end up using it though and threw it out.

[ElMagnifico]

Originally Posted by mitch9521

No. Stock injectors and TB, the throttle response doesn't bother me after I swapped in the Lexus IS250 pedal that gets rid of the dead spot and makes the pedal heavier feeling.

Part number for pedal?

[mitch9521]

Originally Posted by ElMagnifico

Part number for pedal?

78110-53120


It will either require a Japan market Vitz NCP131 pedal bracket to work OR you can fab up something yourself. Electrically it is plug and play.

[Neinris]

Originally Posted by mitch9521

78110-53120


It will either require a Japan market Vitz NCP131 pedal bracket to work OR you can fab up something yourself. Electrically it is plug and play.

Mitch, do you still have the 1ZZ TB installed? If so, did the pedal reduced/eliminated the rev hang?

[mitch9521]

Originally Posted by Neinris

Mitch, do you still have the 1ZZ TB installed? If so, did the pedal reduced/eliminated the rev hang?

Nope, stock TB. I have a port matched 1NZ manifold + 1ZZ TB sitting in my shed, never could get it to play nice with my car so its shelved for the time being. Lots of life events happening, so.

To answer your question; no it didn't change the rev hang. It just made the pedal even with the brake for easy heel toe downshifts and made the pedal heavier which I find much easier to modulate. It also eliminated that annoying dead spot the stock pedals have.