52mm or 58 mm?

[weaponZ]

judging from my sig of mods,would i be better with a 52mm or 58mm throttlebody?

also im thinking about getting some 30lb injectors.to big or to small?

i have a pretty good idea of what i want.i just want to get some opinions before i start buying.

[Lyle A]

Stock heads? I'd say 52mm.

[weaponZ]

Originally posted by Lyle A
Stock heads? I'd say 52mm.

they have been ported

[Lyle A]

Do they have the same flow specs?

[weaponZ]

Originally posted by Lyle A
Do they have the same flow specs?

http://www.z28.com/gallery/data/500/189flow_numbers-med.JPG

[Lyle A]

I guess I'd go with the 58 and if it was too much, sell it and get a 52.

[FANTA-Z]

If you upgrade go with the 58mm because if you do more mods you will waste your money on the 52 and have to sell it to buy the 58 :) The 30lbers will be fine for your car but you will need to reprogram the computer for the added fuel.

[steveb81]

i've been told the 58mm will affect shift points on an a4 but i don't know if its true or not good flow specs though weaponz

[weaponZ]

has anyone ran across any good deals on 58mm TB's?

[KurtRardin]

EBAY!