bigger throttle body with throttle body spacer
#7
Team Owner
Boost requires less of the TB. I touched the high 10s (around 500whp) with my stock 58mm TB which is much smaller than the TL's stock TB.
To the others, unless there's a large bottleneck which is extremely unlikely on a modern car, you have to think of the system as a whole, not just one item. Just a larger TB is going to do nothing. But if you free up the entire intake tract from the filter to the combustion chamber it might give you a little.
It costs the manufacturer nothing to size the TB for max power so you can bet it flows more air than the engine can use at full throttle. CAI really doesn't flow more air, it just delivers cooler air.
What the larger TB will do is give you more power for the amount of throttle you give it. At some point, probably around 75% throttle or so, you will gain no more power and full throttle will be the same as stock.
To the others, unless there's a large bottleneck which is extremely unlikely on a modern car, you have to think of the system as a whole, not just one item. Just a larger TB is going to do nothing. But if you free up the entire intake tract from the filter to the combustion chamber it might give you a little.
It costs the manufacturer nothing to size the TB for max power so you can bet it flows more air than the engine can use at full throttle. CAI really doesn't flow more air, it just delivers cooler air.
What the larger TB will do is give you more power for the amount of throttle you give it. At some point, probably around 75% throttle or so, you will gain no more power and full throttle will be the same as stock.
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