Throttle Body Spacer ?

Has any of you tryed a throttle body spacer on your silverado i have a 2006 4.8 engine and it is a little sluggish so i ordered a throttle body spacer haven't put it on yet. but was wondering if anybody has ? and was it worth the money ? can you feel a difference in power ? does anyone have any good suggestions on products that work far as giving you more torque and power?
Thanks, Rodney

I put the k&n cold air intake kit on my 5.3L i noticed a little bit of a difference nothing worth writing home about it helped the most when towing

put it on friday can't really tell any difference i haven't towed anything yet so maybe it will help there ?

Have you since then noticed any more gains?

I didnt notice anything with the spacer or the intake, IMO.
 
The only things that I felt were worth my money was the power programmer and the exhaust. The programmer because you can FEEL the diffrence, and the exhaust, because I like the sound.

Yea, i've already done both of those. I wish there was more i could do.

Is there anything i can still do that would affect MPG?

Probally stuff like, higher voltage ignition coils, better spark plug wires, maybe even headers.  Do Not go with stupid spark plugs like NGK or some foreign crap, just run AC Delco's.  Anything to make the fuel ignite faster or more will give better MPG and a little more power.

May sounds dumb, but would installing High Voltage Ignition Coils void my GM Warranty?

I do like the idea of headers and have been looking into them. I especially like Borla's product, but at $882, it's a bit much. Has anyone tried the Edelbrock 6502 Shorty Headers?

Ive never met one person that said they noticed a difference with a TBS.  I agree with fireman though I did feel a little with my exhaust and programmer and even a tiny little with the CAI.  Just remember you are gonna sink some cash into those things so if you are looking for mileage only it will probably take years to ever earn your cash back thru the results of those products.  You have to want them on your truck like the rest of us car nuts on here - nothing wrong with that right???.  I would definately start with a tune up and stick with the Delco's like jmack said but check with the shop you buy from on the gap.  AC changed the gap for my 01 from the original .060 to .040 and none of the manuals have that change in them.

quote:

ORIGINAL: ehhget

Ive never met one person that said they noticed a difference with a TBS. 

 
I put one on and I did see a difference.  It was a lot louder and my mileage got worse.

quote:

ORIGINAL: RonH

I put one on and I did see a difference.  It was a lot louder and my mileage got worse.

That sucks, what kind did you get & What year/engine do you have?

If you think about it, a spacer wouldn't make a difference at all.

I really don't see how it would. It's supposed to add a spiral to the air to give it a better fuel mix, but how would it help when the air gets split into 8 separate combustion chambers.

What about a new upgraded Throttle Body or an upgraded Mass Air Flow Sensor?

quote:

ORIGINAL: ActiveMonkey

quote:

ORIGINAL: RonH

I put one on and I did see a difference.  It was a lot louder and my mileage got worse.

That sucks, what kind did you get & What year/engine do you have?

 
It was an Airaid brand.  It was on a 99 Suburban with a 5.7L engine.  It was getting about 15 mpg and it went to 13 or so with the spacer.

How much do you want to spend on it. Depending on your budget, there are plenty of things you could for the performance of your truck.

Looking for a list of thing to do over the next year or so. My budget is ~$4000

I just need to be carefull since it is still under warranty.

Ron thats funny but yeah it sucks!!  Monkey- Start with the exhaust, programmer and the CAI.  You can always set your settings back to stock if you have to take it in for service.  Shoot for 4K you can put a supercharger on there once your warranty is over.

Not sure if i will ever go supercharger. Is there even one out for the 5.3l? I've seen and like the STS turbo product, has anyone had any experience with it?

There is a supercharger for the 5.3 I saw a bolt on kit somewhere once.  I have not heard about the turbo, that would be neat.

http://ststurbo.com/home It's a rear monted turbo.

Is there any kind of Electric Fan kit to eliminate the OEM clutch driven fan?

I saw that episode on Speed, that is cool.

If your going to start with something that will make a huge difference, get a procharger. Those will give you a shat load of horse power and torque it will give you a heart attack. They rob your gas milage like a turbo would, you don't worry about over heating your engine like a regular supercharger and you don't need all the accesories that you would need with a turbo. I am planning on getting a set for my trans am.
 

So what i'm getting is that since i want to keep my warranty/ not go forced induction, all i can really do is Chip, intake, exhaust, headers, Throttle Body, MAF.

Anything i am missing?

TBS worked for me
.9 Miles to gal better and did check it 4 times and got same resualt over and over again
on the same stretch of road
in town notiticed nothing at all
but did gain 8 HP from before and after the TBS
using my G-TECH
did a run before and one right after