Do throttle body Spacer work , my friend has had one on his jeep and said the noticed an big difference in terms on HP , this in an a 4 cylinder TJ jeep ,

I want to mount it on my Vtec prelude .... Dose any one have one out there ?

 

i doubt it will make any noticable difference in power. the butt dyno is almost never correct

 

THEORY:

increases plenum volume allowing for more air on tap for increased throttle response. corkscrew design is supposed to reduce intake turbulence, therefore increasing intake velocity and improve atomization of fuel into the air stream due to the "twirling motion"


REALITY: they usually arent any significant increase in volume. corkscrew design works well in a straight configuration, but when included in an intake plenum that includes a 4th cylinder runner that forces air to make a >90 degree turn to feed that cylinder, in addition to the 90 degree bends from the plenum to each runner, the gains are highly unlikely.

if the spacers worked, i'm sure all individual throttlebody intake runner designs would incorporate the corkscrew twist on it's surface. but realize the shortest distance between 2 points is a straight line, and causing air to twist will reduce turbulence, and increase velocity, but it increases the response time due to having to travel a greater distance.

just an observation.

 

well stated

 

i believe there was a post before on these things.I think its just another one of those gimicks like those "special magnets" that were made by some company to wrap around your fuel line to supposidely make your car run better.

 

i've seen that gimmick. "our magnets will properly align the fuel molecules for increased flow and help reduce contaminates in your fuel line"

haha!