Airaid Throttle Body Spacer

NOLA TITAN · 03-08-2005, 06:36 PM

I was wondering, How many of you guys have one of these airaid tbs's?? Is it worth 100.00?? I was thinking of buying one with my Volant intake, but I'm not sure it is worth it. Also, and most importantly, How does it affect the warranty?? If you have any first hand experience , I'd love to hear it.

titan33 · 03-08-2005, 06:42 PM

I put on bigger throttle body on my expedition not a spacer and I didnt notice any difference. the stock throttle body was like 65mm open and the new was 70mm. all it did was make my air intake whistle. I dont know if the spacer is better than a bigger throttle body. just my 2 cents.

NOLA TITAN · 03-08-2005, 06:49 PM

I did a search on this forum, but did not see that much talk on this issue. I tend to agree with you though. I have not seen any big gains being posted on this modification.

QShip · 03-09-2005, 07:29 AM

Quote:

Originally Posted by NOLA TITAN

I did a search on this forum, but did not see that much talk on this issue. I tend to agree with you though. I have not seen any big gains being posted on this modification.

You'll have to go another Titan forum to see what results people have discovered.

NOLA TITAN · 03-09-2005, 10:13 AM

thanks, I think I'm gonna start this thread on the general discussion board

Armada · 03-09-2005, 01:59 PM

Not again! I thought this had been beat totally to death. Here is the results of a simple search "airaid spacer"

http://www.titantalk.com/forums/sear...earchid=289123

In short, most of us think it is snake oil, that there is no possible way to do anything meaningful in a port fuel injected engine because it is not affecting the atomization of the fuel and not doing anything to the air/fuel mixture because the spacer is affecting the air column only and is very remote from where the injector fires the atomized fuel mist.

There are others who are or have been doing some experimentation suggesting there might be some benefit. I for one asked for verifiable, repeatable controlled studies and a plausable explanation as to how this phenomenon of adding a little space out there could impact performance.

Please check out all these posts on these threads.

RockyMtnTitan · 03-09-2005, 04:12 PM

Go to the "other" site to get a better idea of what people think of the TB spacer.....people who have actually installed it on their Titans. Haven't heard regret about their purchase from anyone there. Better bottom torque, no loss at upper ranges, and some have experienced increased mileage of 1-2 mpg. Mine's been on order, and will hopefully have within the next week.

I believe the reason it adds a little low-end performance is by increasing the velocity of the airflow to the comb chambers. It's not increasing the amount of air, just velocity due to the helical bore design. Is it snake oil? I'll reserve judgement, for now.

37L1 · 03-09-2005, 05:51 PM

Please post any long term results with this mod on this site also and let those who are interested make up their minds based upon other's experience with this modification.

Civilized debate is good as is experimentation.

We salute you, brave Titaneers!

Thanks

RockyMtnTitan · 03-10-2005, 02:59 PM

Will certainly do, 37L1.

QShip · 03-13-2005, 07:22 PM

This is from a Titan owner that installed the t/b spacer.

Jet Tech and Rocky Mtn Titan:

Thanks for the instructions on this. As I stated earlier, I went ahead and cut out the screen (carefully), lightly coated both the original gasket and O-Ring with Vaseline, and installed it.
What an absolute difference in throttle response! I don't care what other negative posters have said about this upgrade but I think it kicks A__.
I've already seen a savings in fuel and significant midrange/low end power with minimal whistle that you can get used to.......
just turn up the stereo a bit .............

PINK_FLOYD_TITAN · 08-08-2005, 09:14 AM

I am thinking of getting a Throttle Body Spacerone too so I will be watching for input Thanks

Armada · 08-08-2005, 09:33 AM

Has anyone done a before and after dyno run, or done a dyno run before and after removing just the screen?

Excuse me for still being a skeptic, but I am looking for hard objective numbers. The science behind the principle just does not seem to apply with sequential port fuel injection systems. I'll be very happy if these things can produce more power anywhere in the band without sacrificing it somewhere else, but it just seems that Nissan engineers would have been smart enough to have determined the proper location of the throtle body.

I don't have ready access to a chassis dyno but do use an accelerometer for making tuning comparisons - there are several good models out there which have been reviewed by folks like Car and Driver - mine is a G-Tech Pro Comp. It will measure rear wheel horsepower pretty accurately and will detect small changes.

Someone ought to be able to do this and report the results, including posting the chart printout in the comparison runs.

PHOEBISIS · 08-08-2005, 09:40 AM

These mpg gadgets are ripoffs,and there is no reason they should work.There will never be an objective test of them-testing would be hard-you would have to do it with several vehicles-dyno runs,mpg runs.
Why should it work??
The old "if it worked it would have come that way from the factory" is actually a very convincing argument especially on something that claims no downside.Exhaust mods sometimes increase hp,but they increase noise which explains the"factory" argument-same story on intake mods.This spacer works to transfer $$ from your pocket to theirs;it does that very,very well.Charlie

MyspaceMike · 08-08-2005, 01:53 PM

Im sold on the power increse in the air systom's I just drove my friends 350z and the increse was dramatic. Why would the Titan not take to more air and a throttle body spacer? And also if the Airraid systom's dident work then why whould they still be in business? They have to be on to something with stock O.E.M not giving enough air flow. I know Califorina has a funny way of restricting good power for better emisions. Just my 2 cents

RockyMtnTitan · 08-08-2005, 02:04 PM

Quote:

Originally Posted by PHOEBISIS

These mpg gadgets are ripoffs,and there is no reason they should work.There will never be an objective test of them-testing would be hard-you would have to do it with several vehicles-dyno runs,mpg runs.
Why should it work??
The old "if it worked it would have come that way from the factory" is actually a very convincing argument especially on something that claims no downside.Exhaust mods sometimes increase hp,but they increase noise which explains the"factory" argument-same story on intake mods.This spacer works to transfer $$ from your pocket to theirs;it does that very,very well.Charlie

Sorry to have to disagree with you on this one, Charlie, but these do work, at least the Airaid TBS. Here's a cut/paste from another site where I posted my results a while back.

Note: I've seen no increase in City mileage, at all...only light-load highway driving.

"OK....I got my TB spacer today. Took off work a little early to do the install and some testing. I was quite pleasantly surprised by the mileage results....much better than I expected. Here's my results.

Before installing the spacer, I filled up with 87 oct and went on a 100 mile highway ride. Basically set the cruise at 80 (2K rpms) the whole way. Checked mileage after filling up again at same station/pump. I got 17.05 mpg.

Installed the TB spacer in the parking lot, and then drove same exact route, again at 80mph on cruise. Filled up again, same station/pump, etc, and checked mileage again. This time I got a whoppin' 19.89 mpg! Almost 3 mpg increase in highway mileage. Time will tell how much of an increase I'll see with city driving.

As far as performance goes....too soon to tell. The "butt-ometer" didn't really sense anything too noticable, so the jury's still out on that one. Also, there is a slight whistling just as the throttle is cracked open, but then is non-existent in any other position. Sounds almost as loud as my Tundra did with the K&N FIPK, w/o any TB spacer. Slightly obnoxious, but not unbearable. I have the stock airbox w/ mod, and Air Hog drop-in filter. I did remove the TB screen as others have done.

Incidentally, the main reason I wanted this spacer was for performance, not mileage. I figured any increase in mileage would just be the icing."