Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V10 (6.8l)
Sign in using an external account
Register Forgot Password?


Modular V10 (6.8l) SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 04-18-2005, 07:16 AM
MattamiscontisME MattamiscontisME is offline
Senior User
 
Join Date: Jan 2005
Location: Best place on earth-Maine
Posts: 117
MattamiscontisME is starting off with a positive reputation.
Does it really do anything? (throttle body spacer)

I have a question regarding throttle body spacers. How do they work (or supposed to work)? I have looked at some different ones and am skeptical that they would really help anything. What is the theory behind their operation and are they really beneficial? Are they supposed to help swirl the air charge like all those snake-oil "vortex generators" in the info-mertials, or do they work by creating a space for a larger volume of air/fuel to be available between the TB and combustion space. I would think that the later of these claims would be the only way that it could help anything - and it would be a very small help. Perhaps by increasing this volume, there would be a greater amount of "surge" space for sudden load changes, thus a more readily available air/fuel mixture for better throttle response.

I am curious about this contraption and would like any insight that anyone might have as to how/why they do or don't work. I was wondering if it would be worth getting for my new V10 (supposed to be delivered in June). Thanks.

Last edited by MattamiscontisME; 04-18-2005 at 07:18 AM. Reason: incomplete
Reply With Quote
  #2  
Old 04-18-2005, 07:27 AM
Fredvon4's Avatar
Fredvon4 Fredvon4 is offline
Postmaster
 
Join Date: Jan 2002
Posts: 3,728
Fredvon4 has a good reputation on FTE.Fredvon4 has a good reputation on FTE.
Swirling the air before it is mixed with any fuel is pie in the sky advertising Hype!

A throttle body spacer can only do one thing.... increase the post throttle body butterfly area before the intake valves (called the plenum) by the the total amount of square inches it adds.

As a proportion of the total plenum volume, the 1" thick spacer is only a very minute percentage. The net effect will be to increase or decrease the air flow dynamics, and the total plenum volume and maybe, increase OR decrease throttle response, and torque.

$15-$20 to experiment with OK ....but for $60 or more for a half pound hunk of aluminum with some holes in it? In my book they are mostly hype and snake oil... I pass.
__________________

Reply With Quote
  #3  
Old 04-18-2005, 08:51 AM
V10MARS V10MARS is offline
Senior User
 
Join Date: Sep 2004
Posts: 194
V10MARS is starting off with a positive reputation.
Post

Quote:
Originally Posted by Fredvon4
SNIP
A throttle body spacer can only do one thing.... increase the post throttle body butterfly area before the intake valves (called the plenum) by the the total amount of square inches it adds.

As a proportion of the total plenum volume, the 1" thick spacer is only a very minute percentage. The net effect will be to increase or decrease the air flow dynamics, and the total plenum volume and maybe, increase OR decrease throttle response, and torque. SNIP
I would have to agree but I do have one. It did improve throttle response on my truck.

I have one made by UMI Performance. I prefer the soft swirls in their unit. The pics on their web site and ebay are of my truck. I helped them tweak the bore size for max flow. I have no interest in the company. I paid for the unit but I was not 100% happy with it.

They were very interested in improving the product. I agreed to use my truck as a lab rat with a couple of spacers they sent me. The one they sell now is the one currently on my truck.
Reply With Quote
  #4  
Old 04-18-2005, 09:46 AM
ken04's Avatar
ken04 ken04 is offline
Posting Guru
 
Join Date: Mar 2002
Location: Vancouver Wash USA
Posts: 2,245
ken04 is starting off with a positive reputation.
Quote:
Originally Posted by MattamiscontisME
I have a question regarding throttle body spacers. How do they work (or supposed to work)? I have looked at some different ones and am skeptical that they would really help anything. What is the theory behind their operation and are they really beneficial? Are they supposed to help swirl the air charge like all those snake-oil "vortex generators" in the info-mertials, or do they work by creating a space for a larger volume of air/fuel to be available between the TB and combustion space. I would think that the later of these claims would be the only way that it could help anything - and it would be a very small help. Perhaps by increasing this volume, there would be a greater amount of "surge" space for sudden load changes, thus a more readily available air/fuel mixture for better throttle response.

I am curious about this contraption and would like any insight that anyone might have as to how/why they do or don't work. I was wondering if it would be worth getting for my new V10 (supposed to be delivered in June). Thanks.
In the old-carb days, a spacer in between the carb and the manifold did a couple things, it gave the air a 25-50% longer path to flow before it had to make a hard turn into the intake runners, which greatly helped airflow. And it also helped insulate the hot manifold from the carb. But we are talking about the dinosaur days of tuning. A velocity stack can make, or lose hp, so can a carb spacer, it's not a panacea for all engines. And believe me, if Ford, GM or DCX could gain hp AND gas mileage from a $5 (to make) part, don't you think they would ? CAFE (corporate average fuel economy, the overall mpg ratings for ALL a manufacturers vehicles) is a great concern for automakers. The fed govt is pounding on the automakers to get their averages up. And even .5 mpg on one vehicle is HUGE. All these magnets, air swirlers, electric superchargers, etc may, or may not help your particular vehicle. Probably the only thing it will help is the suppliers bank account. Swirling the air (if it indeed does) 12 inches upstream of the TB or MAF does what once that air makes it's twist and turns into the manifold and through the heads? Anything we do to the intake or exhaust may have some change to our hp, but will it be a positive change ? And can you tell if you pick up 2 hp at 4361 rpm ?
__________________
Ken,
2005 GT black on black
2006 Mustang V6 pony
Suzuki XL-7
Previous; E-350 15 pa. V-10 XLT Clubwagon
93 E-150 Mark III and lots more
Reply With Quote
  #5  
Old 04-18-2005, 09:47 AM
V10KLZZ71S's Avatar
V10KLZZ71S V10KLZZ71S is offline
Posting Guru
 
Join Date: Sep 2002
Location: Gretna ,LA.
Posts: 1,762
V10KLZZ71S is starting off with a positive reputation.
I think they are snake oil also.They are usually the same size as the throttle body and if you eventually install a larger throttle body, you have to remove the spacer to see gains from the TB. Now, they do work somewhat on carbed engines.
__________________
FORD MAN ALL MY LIFE!
Headers, BBK twin 65mm, Superchip Tuner,True dual exhaust, H-pipe w/Magnaflows, Homemade ram air
Reply With Quote
  #6  
Old 04-18-2005, 11:23 AM
MattamiscontisME MattamiscontisME is offline
Senior User
 
Join Date: Jan 2005
Location: Best place on earth-Maine
Posts: 117
MattamiscontisME is starting off with a positive reputation.
Thanks guys. I appreciate the advice.
__________________
2005 F-350 V-10 6-speed SC SB SRW Lariat Luxury FX4 Manual Hubs 4.10LS True Blue
Reply With Quote
Old 04-18-2005, 11:23 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Modular V10 (6.8l)

Tags
body, changing, do, ford, increase, intake, plenum, space, spacer, spacers, throtle, throttle, total, v10, volume, work

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 03:30 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup