question about individual throttle body's and spacers????

i have met a couple people with individual throttle body's and i just figured it was another little thing that takes forever to do but really only adds like a 3-5 hp or slight increase.......so i never took notice but then....my roomate who is into like trucks and old classics had some cheesy truck mail order magazine and it was saying by buying throttle bodys and spacers (they had like a graph) that this truck went from 224 hp to 248 hp....thats alot! so i took notice.....is this true or is this bull????????thanks guys

all depends on how much air is going into the engine. big truck engines, yes. highly boosted small engines, yes. non boosted i4's, no.

they are more dependent on other mods, if you have alot of mods on the car, then you will see a bigger gain from them, but spending $1,000 on ITB's on a stock motor makes no sense.

plus you wouldnt find them on a turbo'd car, they dont have intakes like a normal car, the air is sucked in through the turbo itself or from an intercooler.

the intake is different on turbo cars, but the throttle body remains in the same place.

Throttle body spacers for Fuel Injected cars are there to allow the intake air charge more time to stabilize after becoming turbulent from its interaction with the throttle butterfly. Well at WOT the butterfly doesn't create any rough air since its completely horizontal to the airflow and posing very little interfearance to air flow. So the spacer would only help you with part throttle acceleration and who gives a sh*t about that anyways?

Carb Spacers(Throttle Spacer for a Carb) on the other hand work quite well. The added height gives the fuel more time to atomize and mix with air.