Do cold air intake filters work ?

[NCSUSousa]

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[ken k]

Wade,
What effect does more-than-9-oz-of-kudzu in an air intake have on acceleration vs. top-end in a 1973 Volvo P-1800 ?

would love a P 1800 (preferably with out the kudzu in the air intake...) beautiful cars, I especially like the wagon version with the glass hatch

[Donn]

Same here, really. I'm not crying about mine:


... but the older wagon is all classic design


Though with these light color schemes, including the mysterious pale key lime pie green that's common around here, they can quickly start to look like a pile of junk when the door lines get more conspicuous for one reason or another.

[oldbandnerd]

After scouring the internet and talking to some knowledgeable people I can confirm that what "the elephant " and "NCSUSousa" have reported here are correct. The CAI filter is great for top end speed but does nothing for torque. Since pulling power (torque) is what I need I'm going to keep my $350 in the bank and not piss it away on this thing.
I did however do a GOTTS MOD ( you can read about it here : http://www.fordf150.net/articles/idx.ph ... ation.html" target="_blank ) because it was cheap and easily reversible . I did It just to see what would happen. I can confirm my truck has had a modest increase power and it accelerates much more smoothly and quickly .... without the trailer. With the trailer it makes little or no difference. I'm going to keep it on because I like the way runs now.
Many thanks to everyone who posted here. It is much appreciated and very helpful.

[MartyNeilan]

After scouring the internet and talking to some knowledgeable people I can confirm that what "the elephant " and "NCSUSousa" have reported here are correct. The CAI filter is great for top end speed but does nothing for torque. Since pulling power (torque) is what I need I'm going to keep my $350 in the bank and not piss it away on this thing.
I did however do a GOTTS MOD ( you can read about it here : http://www.fordf150.net/articles/idx.ph ... ation.html" target="_blank" target="_blank ) because it was cheap and easily reversible . I did It just to see what would happen. I can confirm my truck has had a modest increase power and it accelerates much more smoothly and quickly .... without the trailer. With the trailer it makes little or no difference. I'm going to keep it on because I like the way runs now.
Many thanks to everyone who posted here. It is much appreciated and very helpful.

That mod is similar to much of what I have done - replace unnecessary restrictions done for sound or whatever with a much smoother, straighter intake (and a fraction of the cost of what you mentioned above). As far as the benefits of "cold" air vs air from under the hood, I am sure that is minimal.