Well, I'm going to have my TB ported, polished and bored out sometime very soon. I believe it's a 60mm stock and I'm concidering increasing to about 62 or 63mm, if anyone has any experience or ideas as to what might be a good amount to bore out, please let me know. Thanks
How much to bore out the 1ZZ Throttle Body??
S|Lv3rBu||et
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I'm going to be putting a slightly used '03 1zz in my car within a month or so. The head will be ported and polished so I believe it will be a good application for a larger throttle body, so I am saving this project for that application. Unfortunatly, the results will not be applicable to stock 1zz heads but... eh....
In any case, so long as the walls of the TB are thick enough, I plan on going with 60-63mm to match the MAFS.
In any case, so long as the walls of the TB are thick enough, I plan on going with 60-63mm to match the MAFS.
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2.5" at the throttle plate.
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:chuckles:Originally posted by jway83
cool. i guess i don't have to add that to my list of things i'll probably never get around to doing...
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There isn't much room to portmatch the intake manifold to a larger t/b. I would use the intake manifold as a guide. There is no sense in going to 60 mm if the intake will only go to 58 etc.
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Good call... I'll have to check that out.
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