5.0 70 or 75mm throttle body?
05-10-2012, 11:30 PM
Thread Starter
Join Date: Jun 2011
Location: Florida
Posts: 4
5.0 70 or 75mm throttle body?
looking to upgrade my stock tb for something bigger and better but dont want to go too big if i'm going to end up losing power. my car is pretty much stock right now besides c.a.i. and long tube headers w/ OR h pipe. just want to know if i should get the 75mm or will it be too much right now???
05-11-2012, 12:40 PM
1st Gear Member
Join Date: Apr 2012
Location: KY
Posts: 50
Go with the 70 for now, unless you plan on some major modification in the near future. A 70 works really well with a n/a stang, even with a bunch of mods. A 75-80 is usually better suited for forced-induction.
05-12-2012, 11:32 AM
4th Gear Member
Join Date: Jul 2008
Location: alabama
Posts: 1,812
Unless you plan on cuin change with H/C/I etc then just get a 65mm itll keep the intake air velocity up while allowing more air than the stock unit.
05-13-2012, 02:09 PM
6th Gear Member
Join Date: Feb 2005
Location: KY
Posts: 13,396
75 if you have an aftermarket intake that has an opening large enough if not do at least 70
05-13-2012, 07:33 PM
4th Gear Member
Join Date: Jul 2008
Location: alabama
Posts: 1,812
Dont get the female syndome lol! bigger isnt always better just cause the hole is bigger dosent mean you need to match it!
but hey opinions are like ********!!
05-13-2012, 07:49 PM
2nd Gear Member
Join Date: Sep 2011
Location: Ohio
Posts: 325
In 5.0L Ford Dyno Tests by Richard Holdener, he extensively tested many typical 5.0L modifications, and for most 5.0's, even with numerous modifications, the 65mm TB made the most power. Stroked and/or blown engines respond well to a larger throttle body, but otherwise, bigger is probably not better.
05-09-2014, 04:37 PM
Join Date: May 2014
Location: Texas
Posts: 4
Would a 89 Fox Body Throttle body be compatible with a 96 GT (Stock)?
05-10-2014, 07:48 AM
2nd Gear Member
Join Date: Oct 2011
Location: New Hampshire
Posts: 354
No they are completely different...96 is the 4.6
05-12-2014, 04:15 PM
Join Date: May 2014
Location: Texas
Posts: 4
Thats what I thought... I appreciate the confirmation
05-12-2014, 05:38 PM
6th Gear Member
Join Date: Jun 2006
Location: Jersey
Posts: 11,565
The difference between the 70 & 75 isn't a big deal. Get the 75 that way if you do go big on mods down the road you wont be doing things twice.
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