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View Full Version : 1.8L throttle body dimensions drawing

CrankyOldMan
10-18-2011, 10:17 AM
I threw together a quick layout of the 1.8L (1ZZ) throttle body flange side mating surface. I'm going to try and do a CAD file this weekend for those who may want to CNC one for either a TB spacer or custom intake.

Toyota 1.8L throttle body flange dimensions (https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B_xdiJ1XlEO-Zjg1N2MwNDItNzE1Ny00OGZhLThlNzMtZDQ2ODY4YWM0MTBk&hl=en_US).

The "keep out" area is where the servo housing would interfere with the flange.
EdgarTRD1.8
03-08-2016, 11:54 PM
Is this one for electric TB o for the mechanic TB?
invader166
03-09-2016, 12:38 AM
Electronic drive-by-wire. The classic mechanical is 54mm (2.125in) in diameter and I believe it has only 3 bolt holes.
CrankyOldMan
03-09-2016, 08:14 AM
Is this one for electric TB o for the mechanic TB?

Correct, the drive by wire for the 1ZZ. Are you looking for something for the 3TC or for the Echo?
EdgarTRD1.8
03-09-2016, 08:43 AM
I was only asking. I made 2 drawings of intake flange basic dimensions and posted them on the caribbean section. I'm trying to collect dimensions of Toyota's flanges to post as reference. I'm tool maker and sometimes is hard to find the measures and have to spend on the piece only to take the dimensions. I want to make it easier. Thank you anyway.
EdgarTRD1.8
03-09-2016, 10:30 PM
Electronic drive-by-wire. The classic mechanical is 54mm (2.125in) in diameter and I believe it has only 3 bolt holes.

The 98-02 Corolla is 3 bolts but I think that 03-05 Corolla is drive by wire and 4 bolts, because I made one spacer 1nz to 1zz long time ago and was 4 bolts for the 1zz.