A TBI spacer is much like a carb spacer. I haven't the faintest idea about what it does or how it makes power, but in HotRod, an LB1 V6 making 280 HP and some 300 ft lbs benefited most from a 2 inch carb spacer, bumping it to 300 hp and 315 ft lbs. I'm guessing at that stage of the game it's all about flow... I will mindlessly copy this mod, but damn I want to know how it works!!! I hate installing shit that makes power and I don't know how it works... makes me feel dumb, and shit
__________________
1987 Hyundai Stellar CXL 4G63
-Front Fog lamps
-6K HID Kit
-1988 Firebird spoiler
-Monte Carlo SS tip
-Ford EXP 15x6 alloys all around
-Sony Xplod deck
My other cars are Hyundai Ponys! 1987 (4G16 "Saturn" 4spd), 1986 (4G14 5spd), 1984 (4G63 5spd)
well apparently a throttle body spacer gives the plenum more volume which in turns give more top end power i think. It also gives the air entering more velocity as it enters the runners.
im not sure but wouldn't the spacer 'inclease' the length of the induction pipe?
if so the reason that it makes more power than standard could be because it is closer to the correct tuned length for the induction pipe???
mind you this would be only if its only on the airfilter side of the throttle body. if it were on the other side of the throttle body, crool lantra may be right.
[Edited by BURNIN on Feb 11, 2003 7:29 PM]
__________________
2000 Hyundai Accent GS Queen St Orange Respray, MFX Flame Airbrush, 145 dB Fusion/Focal/Kenwood sys, Master Custom Retrim, 17" Gzero's, 4-2-1 X-Force Polished Stainless Steel Header, Polished X-Force Cannon Muffler, Full Bodykit (except for a front bumper, thanks to the guy who left the ladder in the middle of the highway)...
Throttle body spacers do one thing and one thing only.
In carbed and throttle body injected(computer controlled carb) motors, it alows the air/fuel mixture to mix a little more thuroughly before it starts twisting and turning through the intake runners. This gives a better air/fuel mix to all the cylinders which in turn gives more power.
On a fuel injected motor that uses one injector per cylinder, you will see ZERO increase in power 99.999% of the time.
__________________
old car; 2002 Accent GS 5 speed
custom 3" cold air intake
custom 2" cat back exhaust
Dynomax Super Turbo muffler
10 mpg on the race track
53,105 miles as of 06-29-03
90 hp and 95 ft lbs at the wheels
New car; 2003 Dodge SRT-4
13.6 @ 104 mph, not stock!!
Originally posted by 91cavgt
[body]
Throttle body spacers do one thing and one thing only.
In carbed and throttle body injected(computer controlled carb) motors, it alows the air/fuel mixture to mix a little more thuroughly before it starts twisting and turning through the intake runners. This gives a better air/fuel mix to all the cylinders which in turn gives more power.
On a fuel injected motor that uses one injector per cylinder, you will see ZERO increase in power 99.999% of the time.
[/body]
Thank you, I have been trying to say that for awhile
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
do throttle body spacers work?
Linear Mode
