throttle Bodies

03REDFIRE · Aug 8, 2005

Hers a question im sure thats been asked before but here goes.

When changeing TB why would you choose either 70mm or 75mm
I know we are talking about size but Im currently N/A and someday going SC
Current mods 2003 GT, Long tubes, high flow cats, Magna packs and Mac cold air .

Im leaning toward Accufabs TB and Plenum or Accufabs TB and Trickflows Plenum could someone spell it out why i would choose 70mm and not 75mm?

forpit2000gt · Aug 8, 2005

http://www.modulardepot.com/?show=articlesdet&aid=38
Take a look here and decide for yourself.

tomustang · Aug 8, 2005

http://www.partshopper.com/shop/MAC-Mustang-Throttle-Bodies-m173.html

I was happy at the results. It's cheap and good on the sotp meter.

Gearbanger 101 · Aug 8, 2005

If you're going to be supercharged in the future, you might as well go with the 75mm now. Yeah, you might lose a tiny bit over the 70mm now, but it'll give you a lot later when you're forcing air through it and it will save you from having to upgrade twice.

DropTopPony · Aug 8, 2005

Gearbanger 101 said:
If you're going to be supercharged in the future, you might as well go with the 75mm now. Yeah, you might lose a tiny bit over the 70mm now, but it'll give you a lot later when you're forcing air through it and it will save you from having to upgrade twice.

i agree with gearbanger, once you start modding you can't stop! Next you will want ported and polished heads or a supercharger etc. So you might as well get the 75mm TB now and not have to worry about swapping it out later.You may lose 1 or 2 hp now on a stock set up but you will gain that back and a few more down the road.

tony laq · Aug 8, 2005

thats a good question...and i dont have an answer but are you getting a plen also?...for some reason i seem to read alot of info where people say a bigger TB isnt going to do much without a new plen also...if thats 5.0 or 4.6 specific i dont know.

tony

forpit2000gt · Aug 8, 2005

tony laq said:
thats a good question...and i dont have an answer but are you getting a plen also?...for some reason i seem to read alot of info where people say a bigger TB isnt going to do much without a new plen also...if thats 5.0 or 4.6 specific i dont know.

tony

for basic bolt ons on a 4.6 the 75mm may not perform quite as well as 70mm, but pays off bigger as you upgrade engine parts or forced induction. the 5.0 engines repond a lot better and differently to larger Tbs with the same type of boltons, but they were so restricted to begin with.

throttle Bodies

03REDFIRE

New Member

forpit2000gt

tomustang

Psychotic Member

Gearbanger 101

Straight Outta Locash

DropTopPony

Noob Slayer

tony laq

New Member

forpit2000gt

Similar threads

throttle Bodies

03REDFIRE

New Member

forpit2000gt

tomustang

Psychotic Member

Gearbanger 101

Straight Outta Locash

DropTopPony

Noob Slayer

tony laq

New Member

forpit2000gt

Similar threads

Privacy & Transparency

Privacy & Transparency