Quote:
Originally Posted by 86TOYO2k17
This same effect can be achieved by changing the throttle mapping in the tune or with a throttle manipulating device like pedal commander. i have testing this first hand with a larger TB, pedal commander and changing mapping in the tune all individually and every combination thereof.
All that is happening is the larger TB at say 10% throttle is now open flowing more air as if stock TB was really open 15% so it "feels" like it has higher response / torque delivery when driving around but that's also why peak numbers at WOT do not change unless you have FI and have a greater demand for air than the stock TB can fulfill.
This is also why people have no throttle "coasting" high rpm/higher speed issues because it is flowing more air at zero throttle input than it was before.
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Peak number and Tq delivery won't change without port matching the TB the manifold. You have to go beyond just slapping it on. Necking a 72-70mm, which is over kill anyway in my testing down to 66mm isn't going to have the same result as a 68mm port-matched to 68mm. But this will only be effective after throwing on all the usual bolts on. It work on just about every engine as long as the TB inlet is still flared. Straight through ones no matter how larger do not seem to work NA at least.