Does a throttle body spacer actually work.From what ive read they help but from people i know w/ throttle body spacers, they tell me they do not do a dang thing but waste ur money.Is that true and while im on the throttle bosy subject.what size should i upgrade mine to and what brand would i b better off with. Thanks(07 GT 5 speed)
Welcome to AFM... Frankly TB spacers are a waste of $$ and billet aluminum. Plus some of them whistle like a SOB... As for the TB, save your money unless your are FI. The stock TB flows just fine for a naturally aspirated engine. There are much more cost-effective mods out there that will deliver far more performance.
+1 on that! I was about to pull the trigger on a spacer until my friend with an 05 installed one. His dyno numbers and "dyno 1/4 mile" times were the unchanged. If you are looking for a cheap easy mod, do the CMCV delete plates.
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2006 Black Mustang GT Coupe
Automatic Trans
8/30/2006
Flows, C&L CAI, SCT tuner from Doug, PI 3000 stall lockup converter, Pypes O/R H-Pipe, Spydershaft, Automber Cobalt Trans temp and oil pressure gauges, Innovate Wideband, SOS A-Pillar replacement, Meziere eH2O pump, FRPP 3.73s, J&M 3 Link, Pioneer Avic-D3, Grillcraft replacement grilles
Just to reinforce the folks who have already responded...
The TB spacer will only make your wallet lighter. I was foolish enough to buy one - drove with it for a while, took it off - absolutely no difference.
As for the throttle body itself, the after market ones tend to be more trouble than they are worth and most often people end up putting the stock one back on.
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Alcohol, Tobacco, and Firearms should be a convenience store, not a government agency.
"My Mustang is a hybrid, it burns gas and rubber." - Tubra, from News Forum Homepage
'05 Black GT Auto - Steeda Carbon-fiber CAI w/SCT SF3 tune, CDC sequential turn signals, Saleen HID Headlights, Ford Bullit Axle-backs, Steeda UDPs, Steeda G-Trac Suspension - Stage II, Cragar 610C 18" x 9" & Nitto Extreme 555 255/45ZR18
Just to reinforce the folks who have already responded...
The TB spacer will only make your wallet lighter. I was foolish enough to buy one - drove with it for a while, took it off - absolutely no difference.
As for the throttle body itself, the after market ones tend to be more trouble than they are worth and most often people end up putting the stock one back on.
I too fell for the TB spacer hype... And I bought a 62 mm TB. should have saved my $$ on both!
The reason that the after market throttle bodies don't do anything is that the stock one is good up to 550HP. I just read either in MMFF or 5.0 when they were doing a blower install that they hit they wall at 550 HP as far as throttle body air restriction goes. Since they went above that HP number, they put a larger one on and the motor started producing more HP.
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06 Stang GT, Yeah I got stuff! Check out my profile for the low down.
Well thanks for the info. I knew i was probably not looking at a spacer. I was talking to my english teacher and he has a 96 dodge 408 blown stroker with $85K plus invested and he was telling me to get a new intake manifold and throttlebody since i already have 40 series flows, Air Raid cold air intake, JBA short tubes and waiting for my predator piggy back chip. so he thought thats what i should look at next. well thanks everyone ill get some pics up of the car as soon as i can get the damn camera to work again. appreciate it
Well thanks for the info. I knew i was probably not looking at a spacer. I was talking to my english teacher and he has a 96 dodge 408 blown stroker with $85K plus invested and he was telling me to get a new intake manifold and throttlebody since i already have 40 series flows, Air Raid cold air intake, JBA short tubes and waiting for my predator piggy back chip. so he thought thats what i should look at next. well thanks everyone ill get some pics up of the car as soon as i can get the damn camera to work again. appreciate it
I honestly don't think you need the TB unless you plan on supercharging or turbocharging. Better off investing in a set of underdrive pullies or an electric water pump. Or even better, a set of gears.
They underdrive your crank and water pump freeing up as much as 10 rwhp. It's a good cheap mod.
My understanding is they're just smaller diameter pullies, right? Kinda like using a lower gear ratio. Or is that just being too simplistic?
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'05 Sonic Blue GT w/ '07 V8 engine, 5-sp, IUP, Beige leather interior, nothing else -
just the way I wanted it. (1 of 113)
OK, so I've added a few things to it. Check my Profile - too many to list here.
Sort of... Smaller crank & larger water pump pulley.
Exactly. I heard a good analogy the other day on under drive pulleys.
They said to think of a ten speed bike (which is now 15 or 20 speeds now adays). They said that when you use the smaller sprocket up front on the bike, it's easier to pedal (like a smaller pulley on the crank, and when you use a larger sprocket on the rear of the bike (downshifting to a lower gear) it again gets easier to pedal (like a larger water pump pulley). The easier it is to pedal is just like easier for the engine to turn the accessories.
I was on the fence for a while on UDPs since I didn't want to rob peter to pay paul (give up accessory performance for more HP), but I thought I would never know unless I tried it. I'm going to keep my stock pulleys and if I have a problem, I'll just switch back. I'm sure I could sell the used pulleys easy if I don't like them. I'm crossing my fingers that I love em!
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06 Stang GT, Yeah I got stuff! Check out my profile for the low down.
Exactly. I heard a good analogy the other day on under drive pulleys.
They said to think of a ten speed bike (which is now 15 or 20 speeds now adays). They said that when you use the smaller sprocket up front on the bike, it's easier to pedal (like a smaller pulley on the crank, and when you use a larger sprocket on the rear of the bike (downshifting to a lower gear) it again gets easier to pedal (like a larger water pump pulley). The easier it is to pedal is just like easier for the engine to turn the accessories.
I was on the fence for a while on UDPs since I didn't want to rob peter to pay paul (give up accessory performance for more HP), but I thought I would never know unless I tried it. I'm going to keep my stock pulleys and if I have a problem, I'll just switch back. I'm sure I could sell the used pulleys easy if I don't like them. I'm crossing my fingers that I love em!
UDPs can actually reduce wear on components due to the reduced # of cycles in operation. I've never had any charging issues and I run UDPs and an electric water pump.
I'm not so much worried about the alternator as I am the engine over heating. I see you have they taken care of with the electric water pump.
I'm also wondering how it's going to affect the AC. I don't think this newer type of freon works near as well as the older type. I had bought a new car in 1992 when the switch over was happening and I could tell the difference. This newer freon just doesn't transfer heat as well so it takes longer to cool the car down. I'm wondering what that's going to be like with the compressor turning a little slower. I guess I'll find out. I live about 5 miles away from work and drive stop and go traffic so getting that AC blasting ASAP is important to me.
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06 Stang GT, Yeah I got stuff! Check out my profile for the low down.
Throttle body spacer-throttle body 
