Are ported throttle bodies worth it?
#1
#3
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Mythoughts are that a ported t/b will increase your initial throttle response.
Unless it's ported from beginning to end where the entire opening is widened, then WOT increases aren't going to be had.
I ported my mustang t/b around the butterfly area where it meets the body. The result was a very touchy gas pedal off the line. Top end was identical on the dyno. i hogged out the sides of the throttle body where the butterfly opened. That allowed more air for the same gas pedal presure, but again, this is only benefitiing low end.
Unless it's ported from beginning to end where the entire opening is widened, then WOT increases aren't going to be had.
I ported my mustang t/b around the butterfly area where it meets the body. The result was a very touchy gas pedal off the line. Top end was identical on the dyno. i hogged out the sides of the throttle body where the butterfly opened. That allowed more air for the same gas pedal presure, but again, this is only benefitiing low end.
#5
#7
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Here's a pic of what I am talking about.
The "Ported T/B" is merely diggin a trench where the plate begins to open. This allows much more air to pass by the butterfly plate compared to stock. Which is why it gives much better throttle response down low.
As you can clearly see that because of the internal diameter remains the same, there is no gain in CFM flow at WOT.
![](http://i217.photobucket.com/albums/cc86/rfoker/th_portedcrock.jpg)
A simple dremel tool with some time in the garage can save some good chunk of change.
Worth $300. Not IMO. unless the diameter itself increase. Like from 83mm-86mm. Then there is a WOT increase to be had
The "Ported T/B" is merely diggin a trench where the plate begins to open. This allows much more air to pass by the butterfly plate compared to stock. Which is why it gives much better throttle response down low.
As you can clearly see that because of the internal diameter remains the same, there is no gain in CFM flow at WOT.
![](http://i217.photobucket.com/albums/cc86/rfoker/th_portedcrock.jpg)
A simple dremel tool with some time in the garage can save some good chunk of change.
Worth $300. Not IMO. unless the diameter itself increase. Like from 83mm-86mm. Then there is a WOT increase to be had
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#8
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This is the one I was sort of looking at from moes
http://moesperformance.com/index.php...ducts_id=12224
They say its suppose to be ported to 85mm where Im not to sure.
Also dirtydog, when you ported yours with a dremel did you have to replace the plate inside? If you made the full inside of the throttle body larger wouldn't that plate need resized as well?
http://moesperformance.com/index.php...ducts_id=12224
They say its suppose to be ported to 85mm where Im not to sure.
Also dirtydog, when you ported yours with a dremel did you have to replace the plate inside? If you made the full inside of the throttle body larger wouldn't that plate need resized as well?
#10