Hi, I'm trying to do the 1ZZ Throttle Body swap, already got the TB, but I'm really confused on the vacuum line part. What do I do exactly about that?
I saw one guy with an xA do it with an OBX spacer and nothing back from him. but I saw he had a hose around the Evap on the top of the tp, can I just get a hose that will fit onto the Evap on top of the TB?

Sorry I am really confused.


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I have to ask why...proven to be both a PITA, as you're discovering, with little to no benefit on a stock engine. The stock 1NZ throttle body has been proven not to be an impediment to making power and flows plenty.

There were, at one point, plenty of 'How-To's' on this one and everyone seemed to do it a little different.

 

thank you for the doc, I am still going to attempt it because I still have heard a lot of good things about the swap!

 

I kicked around the swap versus just having the stock throttle bottle bored with a larger plate that was knife-edged...went with the bored throttle body in order to avoid all of the installation issues. Throttle body is still sitting in my basement connected to a WeaponR sheet metal intake manifold that I may get around to installing at some point.

Eventually I'll be installing a 2ZZ throttle body...connected to a 2ZZ motor and 'front-ended' with an axial flow rotary exhaust.

 

Wow that's awesome!

Would you consider contacting me via PM on the TB or Intake Manifold I am interested?

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