Better off with this: http://www.teamjdm.com/2011-2014-5-0l-mustang-accufab-84-5-throttle-body/I'm debating this TB on my Boss....
I'm utilizing the stock tb till all that is ironed out. The GT350 steps down to a 84mm at the blade so I wasn't too worried about it. 4mills is roughly an 1/8th of an inch in total diameter loss between the too. JDM told me the most loss they saw was 4-5hp but back to back runs can vary by that. However the stock 80mm does make more torque. My car runs like a raped ape. This has more seat of the pants fun then the headers did. Favorite mod so far!
Yes essentially. A few members have posted graphs to support this. The step in the oem GT350 tb is there to aid in low end torque from what I've read, although there isn't too much literature on the throttle body itself at the moment. So this isn't just a wild theory. Plus my car feels stronger literally everywhere in the rev range. I have zero surging or any issue whatsoever. Well other than trying to keep my foot off the gas.Are you saying the stock TB makes more torque with GT 350 intake manifold compared to using the actual GT 350 TB?
Ah cool so did you originally have the 350 TB as well then?Yes essentially. A few members have posted graphs to support this. The step in the oem GT350 tb is there to aid in low end torque from what I've read, although there isn't too much literature on the throttle body itself at the moment. So this isn't just a wild theory. Plus my car feels stronger literally everywhere in the rev range. I have zero surging or any issue whatsoever. Well other than trying to keep my foot off the gas.
I went with the adapter from the get go. I think I gained power everywhere to be completely honest with you. Usually around 3-4K with the headers I would feel the car open up and pull hard entering the power band when I'd stab the gas. Now it pulls harder the same way except at 6k you hear and feel it going into an even harder power band. It scared me a little the first time, frying new tires from a 70 punch on the freeway is a rush.Ah cool so did you originally have the 350 TB as well then?
Now you have it running sweet would you say the car feels like it lost torque or response anywhere down low compared to stock intake manifold?
Not when you factor in the price difference...Better off with this: http://www.teamjdm.com/2011-2014-5-0l-mustang-accufab-84-5-throttle-body/
Just read over the the whole site and was very impressed. What were your cousins results?http://maxbore.com/
I'm getting ready to send my stocker to him. My cousin is already running one that he did on his GT350 manifold. This service takes the stocker to just shy of 85mm for $140 and you will have to worry about the GT350 TB drivability issues.
The stock throttle body has a less turbulent low speed airflow characteristic vs the gt350 TB . Better low speed torqueAre you saying the stock TB makes more torque with GT 350 intake manifold compared to using the actual GT 350 TB?
We did not find this to be true at all. They provide the same torque with our calibration and the GT350 adds a small amount of power up top. I have seen those "tests" and something else was going on there...Are you saying the stock TB makes more torque with GT 350 intake manifold compared to using the actual GT 350 TB?
Yes price is one thing but if that's the case stick with the stock TB. Tuning that combination may be an issue.Not when you factor in the price difference...
Actually ford is using the Chevy throttle body.[MENTION=12860]RubyRedBoost[/MENTION] he picked back up the power he lost going from the gt350 back to the stocker. He said it was definitely worth the money and made more torque than when he had the gt350 TB probably due to having better flow characteristics than the gt350. Also since we are talking TB's Chevy is running the gt350 87mm on the 2016 camaro. Found that to be quite interesting.