RE: Throttle Body Spacer

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RE: Throttle Body Spacer

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Blazer Forums >> Modifications >> Performance & Brainstorming >> Headers, Intake, & Exhaust >> RE: Throttle Body Spacer

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RE: Throttle Body Spacer - 8/17/2006 3:47:35 AM

djbass_mekanik

Posts: 48
Joined: 1/17/2006
Status: offline

regardin the tbs im thinking of getting one soon... i wanted the smooth one, but i want some whistling noise.. so im goin with the jet one..

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(in reply to swartlkk)

Post #: 21

RE: Throttle Body Spacer - 8/17/2006 6:40:13 PM

tommyd

Posts: 218
Joined: 5/5/2006
Status: offline

quote:

ORIGINAL: swartlkk

I could make that same thing (without the stupid swirl) for probably around $50 for the complete kit. The only thing that swirl does is create that whistle. Nothing more. Throttle body spacers do work if what you are looking for is more low end torque at the expense of high end torque/power.

I designed and sold TBS kits for Dodge 3.5L & 3.3L v6s and typical gains that I saw through customer reviews of my spacer were a nice kick in the pants off the line and 2-3mpg increase in mileage on the 3.5L and around 1-2mpg on the 3.3L. Not bad for a $50 expense.

The hardest part of these spacers is milling in the o-ring groove. There isn't a paper gasket made for this throttle body.

What is it you do exactly? I guess it depends on what machine you are working on but the o-ring groove wouldn't be a problem unless you are doing this on a bridgeport. I was considering making one of these and a mold for the gasket in class for a project, though I would have just cut it on the hurco. Unless your real quick on a bridgeport it would probably be cheaper to buy one rather then spend the man hours to cut one. Anyhoo, nice to see someone else that is in manufacturing I always feel like the lone guy trying to explain to a bunch of desk jockeys what a die is.

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'96 blazer LS 4x4 K&N FIPK Gen II Intake
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(in reply to swartlkk)

Post #: 22

RE: Throttle Body Spacer - 8/17/2006 7:58:28 PM

swartlkk

Posts: 14472
Joined: 5/1/2005
From: Waterloo, NY
Status: online

I should have been more clear. With any small quantity production of something, the cost goes up proportional to the complexity. I was merely stating that due to the o-ring groove, the spacer would be more expensive.

I am a currently a manufacturing engineer. I went to school for mechanical engineering and grew up on a cash crop farm where we built whatever was necessary to do the job at hand.

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2004 Rainier
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(in reply to tommyd)

Post #: 23

RE: Throttle Body Spacer - 8/17/2006 8:30:42 PM

tommyd

Posts: 218
Joined: 5/5/2006
Status: offline

Nice, thats exactly what I'm going to college for. And yes, understandably so cost will go up on job-shop/small run production I should just drop a VM1 in my garage and I would have halmf the machined parts I want. Now where can a college student find an extra 40K?

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'96 blazer LS 4x4 K&N FIPK Gen II Intake
SLP loudmouth resonator Lund Deflector
Pioneer Deck 30x9.5 BFG Mud Terrains
JBL w12 GTI MKII Powered by Crown bpx500.1

(in reply to swartlkk)

Post #: 24

RE: Throttle Body Spacer - 8/18/2006 7:18:01 AM

swartlkk

Posts: 14472
Joined: 5/1/2005
From: Waterloo, NY
Status: online

Believe me man, I wish I had a nice CNC mill. Heck, I'd take a regular bridgeport and a good machinist lathe. At work, I do machine programming on our 2 Doosan VLCs as well as our 2 OKK HMCs. We also have 2 Daewoo HLCs, 2 old Okuma HLCs in a cell with a Haas VMC, and a Mori Seki cell that consists of a Mori Seki HMC and a Mori Seki HLC. But being a production factory with a union...

For those of you wondering what all of the three letter words in caps mean...
Crib Notes:

CNC ==> Computer Numerical Control
VLC ==> Vertical Lathe Center
HLC ==> Horizontal Lathe Center
HMC ==> Horizontal Machining Center
VMC ==> Vertical Machining Center

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2004 Rainier
1970 Chevelle - Resto
1974 K5 Blazer - Resto

(in reply to tommyd)

Post #: 25

RE: Throttle Body Spacer - 8/18/2006 11:55:58 PM

gsquared

Posts: 10
Joined: 7/31/2006
Status: offline

I recently put the Trans Dapt spacer on my K-5. Initial results from very limited data increase of 2.75 MPG. May be several months for accurate data. But if this result holds up it will have paid for itself by the time I'm convinced the data is accurate. I believe some of the gain is due to creating space between the manifold and the TB, less heat. I don't feel any difference in HP.

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(in reply to swartlkk)

Post #: 26

RE: Throttle Body Spacer - 11/8/2006 11:03:08 PM

britton_michael

Posts: 1
Joined: 11/8/2006
Status: offline

Hey guys. i have a '90 S10 Blazer, bored 40 over, dual exhaust, K&N filter, edelbrock air cleaner. i just bought a TB spacer and im having a little trouble making it idle back down. the throttle sticks and i have to pull it back with my foot. i have adjusted the TV cable...but it's still not right. any suggestions, besides ditching the spacer?

(in reply to swartlkk)

Post #: 27

RE: Throttle Body Spacer - 11/9/2006 8:12:39 PM

cody32401

Posts: 106
Joined: 10/16/2006
Status: offline

is there a spring that might not be hooked up

< Message edited by cody32401 -- 11/9/2006 8:15:49 PM >

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Post #: 28

RE: Throttle Body Spacer - 11/23/2006 3:33:34 PM

20Blazer00

Posts: 862
Joined: 9/16/2005
Status: offline

quote:

ORIGINAL: cody32401

is there a spring that might not be hooked up

Possible but I don't think so. This sounds like it might have either a vacuum leak with the TB/Spacer/Intake seals or your TPS and IAC need to be readjusted. Check the computer for codes, it will lead you in the direction you need to go...

< Message edited by 20Blazer00 -- 11/23/2006 4:12:01 PM >

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2000 Blazer LS 4dr 4.3L Auto
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Post #: 29

RE: Throttle Body Spacer - 11/23/2006 3:48:27 PM

00blackblazer

Posts: 119
Joined: 11/6/2006
Status: offline

you need to readjust your tb spacer. your throttle blade is making contact with the spacer causing it to stick. easy fix. also a tb spacer will do more for your low-mid range torque.

To put it simply, velocity in the combustion chamber makes additional torque. This is the speed at which the air and fuel mixture enters and exits the engine. Increase the speed and you will increase the engine's torque output.

The throttle body spacer adds velocity by effectively improving the vacuum response to the TBI or carburetor. The throttle body spacer, effectively increases the runner length of the intake manifold while at the same time increasing the overall plenum volume.

This, in turn, also acts to prevent any of the air-fuel mixture from hitting the bottom of the intake manifold and bouncing back up to scatter in the intake manifold increasing overall performance and throttle response.

(in reply to 20Blazer00)

Post #: 30

RE: Throttle Body Spacer - 11/26/2006 7:50:11 PM

TheGuardian08

Posts: 50
Joined: 11/19/2006
Status: offline

I was just reading something online that a TB spacer does nothing for vortec engines... I just want better gas mileage, i don't care about HP/torque because i don't need it. I have my dads truck if i need to do any heavy duty hauling, but because of my blazer and its gas mileage, i need better

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Post #: 31

RE: Throttle Body Spacer - 6/7/2007 5:19:31 PM

chevy2loud2bad

Posts: 1
Joined: 6/7/2007
Status: offline

my 89 k1500 got 1mpg with a helix power tower spacer the whistle sounds awful this is with 35 " bfg muds i think mybe better on stock for mpg gains

(in reply to TheGuardian08)

Post #: 32

RE: Throttle Body Spacer - 6/19/2007 8:45:20 AM

vicskim1

Posts: 28
Status: offline

what happens if the EGR plate is removed..

(in reply to swartlkk)

Post #: 33

RE: Throttle Body Spacer - 7/6/2007 9:41:09 AM

myol blue4x4

Posts: 484
Joined: 5/31/2007
From: War In (Warren) OH
Status: offline

1mpg? Wow I bet that sucked, anywho, so is it plain pointless to get a tbs for the vortec blazer? I want to get better gas milage but the money saved on a tbs is better spent somewhere else if it doesn't even work on a vortec.

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Post #: 34

RE: Throttle Body Spacer - 7/6/2007 9:58:31 AM

FFJustin99Chevy

Posts: 381
Joined: 2/25/2007
From: Harrisburg, PA
Status: offline

I also have a Helix Performance Throttle Body Spacer on my 2006 4.3L. Don't buy it if you're looking for this big jump in horsepower. As far as torque is concerned though, I was able to notice a difference in the rear wanting to break loose. The throttle response is better and gas mileage went up a couple mpg in conjunction with a cold air intake and better exhaust system.

For those who say that it doesn't work, you may have been expecting something out of it that it's not necessarily designed to do.

It costs around $90 from JCWhitney and you'll make that up in no time with the effective gas mileage.

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