YZCHARLIE
Mission Viejo, CA USA
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Joined: 10/29/2003
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Like everyone else out there, I'm looking to eek out the most MPG on my TV. I have heard about throttle body spacers and figured I'd go here first to see if anyone has any experience with them?
Chuck & Jayne Williamson
18' Terry TT pulled by Dodge 1/2 ton pick up.
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BillyW
North ID
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Everything I've read or heard says "Myth" if you're talking about newer engines.
'97 F150 4X4
'04 Pioneer 18T6
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jefff929
Pacific wonderland, wet side
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My experience starts and ends with a story.
I know a guy who claimed it worked and my stepson tried it. The first guy was kind of gadget guy and would try anything. My stepson dropped a spacer down the intake and had to order a long block to fix the mistake.
IMO, they are just like most of the things that improve mpg, they might work; adjusting tire pressure to max and driving habits are by far the biggest help, a throttle plate spacer may help also, but the gain will be small for the $.
2001 Dodge 2500 QC, Diesel, Auto, 4x4 Shortbox, Stull running boards, 24.5' Prowler 5er
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SCOMP225
Brownsburg,Indiana
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How do you drop a Throttle Body Spacer down the intake manifold ?
Chuck
1992 American Eagle
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ib516
Up here!
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I think he meant a bolt spacer - a hollow tube of sorts.
2010 Cougar 322QBS 5er
2007 Dodge 3500 Megacab, 4x4, 5.9L Cummins Turbo Diesel, 3.73, 48RE auto
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Prev Trucks:
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2001 Dodge 2500, 4x4, 360 gasser, 4.10, 46RE auto
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Learjet
Louisiana
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Joined: 02/21/2006
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YZCHARLIE wrote:Like everyone else out there, I'm looking to eek out the most MPG on my TV. I have heard about throttle body spacers and figured I'd go here first to see if anyone has any experience with them?
IF they worked, why wouldn't the automaker put them on the engine?
Nuf said !
* This post was
edited 11/19/09 04:34pm by an administrator/moderator *
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blt2ski
Kirkland, Wa
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Learjet wrote:YZCHARLIE wrote:Like everyone else out there, I'm looking to eek out the most MPG on my TV. I have heard about throttle body spacers and figured I'd go here first to see if anyone has any experience with them?
IF they worked, why wouldn't the automaker put them on the engine?
Nuf said !
application foThe main reason an auto manufacture will not put them on, is the emissions regs among other things. The spacer may allow more emissions than the manufacture wants to have. Along with they have to tune a motor for more than one type of application. The spacer may only work in the 3k-5K rpm range, meanwhile most buyers are running in the 2000-3500 rpm range! This is not a good use of r the general market in that case.
As far as do they work? I've heard of some folks with the TBI GM's from the late 80;s to mid 90's that liked them. I am also recalling that they worked at higher rpms, not the lower range where most of us tow at. I guess the answer, is "yes and no" or "it depends"
Marty
05 Chev CC D/A LS Dooley
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
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skipnchar
Google Kansas USA
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Joined: 12/17/2003
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WE used to run them on race engines and found that the only thing we found was that they DEFFINATELY made the engine idle poorly and MIGHT have increased upper RPM power some immeasurable amount. This was with a carborated engine not SFI.
2004 F-250 SCREW Long Bed (new)
OR 2004 F-150 HD (85,000 towing miles)
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We have enough YOUTH...how about a fountain of SMART
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Phils
Paradise, CA
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I installed one on my '91 TBI 5.7L K2500. I have a long steep hill that I use whenever I do any modifications. The farther I got up that hill towing the fiver before I dropped down to 1st gear defined the benefit of whatever change/modification I was testing.
The spacer got me about 150' farther. Not worth the trouble or money.
A Superchip got me another 150'. Had to then use premium fuel. Not worth the trouble or money.
After 10 years of "too-much-time-in-first-gear" on steep hills, I moved to an oilburner and now cruise up the hill at the speed limit, unless cars are slowing me down.
Phil
'03 F250 7.3 deezle and '01 Komfort 27FS
Off the grid and outta sight at home
Go camping to have neighbors and amenities
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carringb
Corvallis, OR
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Joined: 07/28/2003
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Only will work on a carb or TBI system (and even then, improvements are limited). Won't do a thing for a modern multi-port fuel injection system.
Bryan
2000 Ford E350 DRW Wagon (14-pass all captains chairs)
V10 w/ Banks PowerPack, Diablo Predator, 4.56 LS, 250,000+ miles
Had: Weekend Warrior 41' FSW
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