Throttle Body Spacers?

[evan546]

I'm new to moding and I was curious as to what a throttle Body Spacer would actually do and how it works what are the pros and cons?

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[ronv95]

It will remove money out of your bank account with no return in your investment. That's my opinion and the opinion of many others, however there are people who claim they feel a better throttle response.

http://www.mustang6g.com/forums/showthread.php?t=16020&highlight=throttle+body+spacer

 

[Biffosaur]

= I was curious as to what a throttle Body Spacer would actually do =

Put more space between the throttle body and the upper intake manifold

 

[Herr_Poopschitz]

Spacer gains or losses can only be verified via a dyno. There may be a slight increase in power if an engine needs a larger intake plenum. On anything relatively stock...cams/head...this is highly doubtful. Money is more effectively spent elsewhere.

 

[Juben]

The best use of a spacer would be as an injection port for a meth kit or similar. Spacers usually increase low/middle range torque which isn't something we need, lol.

 

[Herr_Poopschitz]

Spacers usually increase low/middle range torque which isn't something we need, lol.

I've never seen an instance where increasing plenum size resulted in higher torque at low engine speeds....carb'd or injected.

 

[dragonacc]

I've never seen an instance where increasing plenum size resulted in higher torque at low engine speeds....carb'd or injected.

Yeah, that's runner length no?

 

[Juben]

I've never seen an instance where increasing plenum size resulted in higher torque at low engine speeds....carb'd or injected.

Read this.

Yeah, that's runner length no?

This is what Boomba said in Post No. 13 from the link above:

"Essentially the spacers add volume to your intake plenum. This has been shown to aide in cylinder filling at lower RPM, smooth out throttle response, build boost sooner, and lengthen the effective wave pulse of the intake charge. In the picture shown above, you can see the dyno charts of both spacers paired and the gains are tremendous. Over 30 ft lbs of torque (in using both spacers) and a significant change in the horsepower curve.

We are strapping the Mustang to the dyno today and expect to see similar results!"

 

[Herr_Poopschitz]

Read this.



This is what Boomba said in Post No. 13 from the link above:

"Essentially the spacers add volume to your intake plenum. This has been shown to aide in cylinder filling at lower RPM, smooth out throttle response, build boost sooner, and lengthen the effective wave pulse of the intake charge. In the picture shown above, you can see the dyno charts of both spacers paired and the gains are tremendous. Over 30 ft lbs of torque (in using both spacers) and a significant change in the horsepower curve.

We are strapping the Mustang to the dyno today and expect to see similar results!"

That's incorrect. Pseudoscience. Look at post 10 of the same link...

Complicated explanations do not equal truth.

'Lengthen the effective wave pulse of the intake charge'...sorry, but that is a collection of words that don't mean anything with respect to even lengthening intake runners, much less increasing plenum volume. It's quite literally nonsense.

Caveat emptor

 

[Ron@cp-e]

The best use of a spacer would be as an injection port for a meth kit or similar. .

^this
as an alternative to drilling a hole/tapping into your IC piping or intake manifold

 

[Juben]

That's incorrect. Pseudoscience. Look at post 10 of the same link...

Complicated explanations do not equal truth.

'Lengthen the effective wave pulse of the intake charge'...sorry, but that is a collection of words that don't mean anything with respect to even lengthening intake runners, much less increasing plenum volume. It's quite literally nonsense.

Caveat emptor

Do you even read what you say yourself? You said, "I've never seen an instance where increasing plenum size resulted in higher torque at low engine speeds", so I provided a link showing you where it added 'torque' at lower rpms according to Boomba's dyno sheet! I didn't say that it was sound science, and even went so far as to say that it's best use would be as an injection port for water/meth or similar. I personally wouldn't spend my money on just a spacer, but if I wanted to add meth at the throttle body, that'd definitely be an option. :shrug:

 

[Herr_Poopschitz]

Do you even read what you say yourself? You said, "I've never seen an instance where increasing plenum size resulted in higher torque at low engine speeds", so I provided a link showing you where it added 'torque' at lower rpms according to Boomba's dyno sheet! I didn't say that it was sound science, and even went so far as to say that it's best use would be as an injection port for water/meth or similar. I personally wouldn't spend my money on just a spacer, but if I wanted to add meth at the throttle body, that'd definitely be an option. :shrug:

Thanks for repeating what I wrote. You may wish to reread what I wrote yet again, for good measure. In the 'test' you linked to, Boomba admits to having changed both TB and IR spacers. That's two variables that could be the reason for the 'gains' (which is debatable in itself). Mathematics leads us to the conclusion that the IR spacers are the reason for the shift, not the increase in plenum volume.

It's unfortunate reading comprehension is a lost art, but insulting someone isn't.

Companies w/ CNC's can make all kinds of parts...doesn't mean they know if or how they work. Freshly machined/anodized aluminum sure is pretty, though.

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