RevsUnlimited

I was wondering if the throttle body spacers actually work? Will this along with a cleaning add a couple hp or mpg?

On a side question, my car engine does a rumbling sound at about 1200rpm then stops once it goes higher, my mechanic told me that the mounts seem fine, do you guys have any idea of what it could be?

All input is appreciated!!

quik95lt1

iTrader: (7)

throttle body spacers on the LT1 cars are as useful as a screen door on a submarine....

GR33N GoblinM6

iTrader: (14)

i actually used a TB spacer with the spiral bore on my TBI 93 truck... it actually worked. only because on the TBI engines it helps the mixture as well which helps airflow get into the intake manifold..

on our cars.. no..

Mystery Bird

iTrader: (7)

I didn't even know they made one for the LT1.

96capricemgr

iTrader: (1)

There are a LOT of junk products made for no reason other than to take people's money.

The only useful TB spacer on an LT1 would be one that has nitrous spraybar in it, and then it is not useful NA only when it has nitrous flowing.

ahritchie

iTrader: (1)

A throttle body airfoil is about the only thing that can be added to improve airflow on the stock TB (other than CAI or high-flow elbow)...they are cheap ($30-50), but only worth 2-3 HP if that. Coolant bypass mod on the TB is worth it however. Get a cold air intake if you want noticeable power and mileage improvements if you don't have one already.

Puck

iTrader: (17)

Spacers are only useful on a single plane intake, and wont help on our stock one.

Catmaigne

iTrader: (6)

A spacer will do nothing but add surface area and slightly heat soak your LT1.

pillarpod

plus it just adds weight

the_merv

iTrader: (88)

SD Car-maybe..

MAF Car.. no.

I LOL every time I see one on a LS1.. the Intake itself swirls air naturally..lol

94fixerTA

iTrader: (5)

It would also leave less room to put on the intake elbow.