Ordered BB Exhaust, TB Spacer, and Silverstars...

[JWe45BB]

I ordered the bb tri flo exhaust today as well as a Throttle Body Spacer, and Silverstars. I already have a K&N Aircharger Intake. I will keep you posted on the results. Also deciding between 20" KMC Enduro2 Wheels and 20" Helo Maxx 6 Black Wheels. I will be ordering them soon also. Planning on going with 305/55R/20....or are those to big? I have the leveling kit but still not sure? Thanks for all the help and I'll keep you posted.

[gftitan04]

Originally Posted by JWe45BB

I ordered the bb tri flo exhaust today as well as a Throttle Body Spacer, and Silverstars. I already have a K&N Aircharger Intake. I will keep you posted on the results. Also deciding between 20" KMC Enduro2 Wheels and 20" Helo Maxx 6 Black Wheels. I will be ordering them soon also. Planning on going with 305/55R/20....or are those to big? I have the leveling kit but still not sure? Thanks for all the help and I'll keep you posted.

Can someone explain to me the reason for the TB spacer? I've heard of people doing this but not sure why.

Thanks!!!

[HavockWK]

Originally Posted by gftitan04

Can someone explain to me the reason for the TB spacer? I've heard of people doing this but not sure why.

Thanks!!!

Oh no, not the TB spaver discussion!

Short and dirty, not-so-technical response... A throttle body spacer is supposed to increase power & fuel economy by helping the fuel-air mixture blend more evenly for a better, more balanced burn in each of the 8 cylinders.

There has been a lot of debate on whether these do any good on a modern multiport injection engine setup like we have. I will leave the rest up to you to read the debates and decide for yourself. If you are familiar with JetTech, he did some testing and a writeup when he installed on on his Titan.

[sc186]

Placebo effect, reverse engineering. Who knows. But from the dyno's that Jet Tech has done, i just dont see how paying money to lose power up top would be benificial for the performance minded driver. As for bottom end gains. Who knows. Until we can stick the tranny in 3rd on the dyno, or get a track tester like The Head to run it, im holding onto my money.

I think that the best way to look at it is the cost per horsepower or unit Tourqe. And also any Aesthetic or acoustic gains offered.

Ex:
Volants dyno 20ft.lb's more than stock, yield 2 tenths in the quarter and cost between $250-$300.
What you get for every $15 is 1ft.lb of tourqe, a nice looking intake, and serious audible grunt when on the gas.

A throttle body spacer costs in the area of $100 and nets you no proven gains, no visual enhancements, and likely no positive sound improvement.

Not trying to discredit other members creativity. Just calling it how i see it.

[HavockWK]

Originally Posted by sc186

A throttle body spacer costs in the area of $100 and nets you no proven gains, no visual enhancements, and likely no positive sound improvement.

There is audible enhancement according to at least one manufacturer.

From Airraid's own installation instructions of their TB spacer:

Originally Posted by http://www.airaid.com/pdf/520-538.pdf

The "whistle" means it's working!

[37L1]

That's an enhancement?

[HavockWK]

Originally Posted by 37L1

That's an enhancement?

A friend of mine has one on his Sierra and that is the most incredibly irritating sound I have ever heard from something that is not broken on a vehicle. You can here it from over 100 yards away when he accelerates.

JetTech reports that his isn't whistling, so I am wondering if it is "working"! Just kidding, I personally would be embarassed to put out a product that makes a noise like that, and am glad to hear that so far no whistling is reported with this product on a mighty Titan.

CA has a law against whistling exhausts right? What about whistling intakes?

[QShip]

Originally Posted by sc186

Placebo effect, reverse engineering. Who knows. But from the dyno's that Jet Tech has done, i just dont see how paying money to lose power up top would be benificial for the performance minded driver. As for bottom end gains. Who knows. Until we can stick the tranny in 3rd on the dyno, or get a track tester like The Head to run it, im holding onto my money.

I thought we wanted ti dyno our trucks in 4th. Quite a few people dyno their truck in 3rd including me.

Also, I thought JetTech said his motor was heatsoaked. That would explain the lose of power.

[GETSOMZ28]

Yeah, JT didnt lose any power up top (if you looked at his dyno after the engine cooled a bit). I have the TB spacer and I am getting the best mileage since owning the Titan. It does have a light whistle if you really, really try to hear it (stereo turned off). It sounds like a blowoff valve. Overall, i would say it is worth the $ spent since it does feel like it pulls a little harder down low.

[Armada]

Congrats on the new exhaust. B&B makes some very, very nice stuff.

But, with respect, I just don't see the science involved in using a spacer on a port fuel injection engine. The fuel never gets anywhere near the spacer and the spacer is nowhere near the intake valves.

Only air passes over the spacer. It can't cool the air in the nanosecond the airstream is exposed to it. Any swirl effect it might have is to air only and that effect has to sustain itself all the way through the intake manifold (with its internal screen) and then have some effect during the strong vacuum that sucks this plain air violently into the combustion chamber by way of the intake ports where it finally at that late and far removed point, is combined with the atomized spray of injected fuel and then through the intake valve into the cylinder head. Am I missing something here?

With respect, I just think this is voodoo science. Now, in carbureteted engines or those with the old throttle body fuel injection, lifting the carb or throttle body away from the intake manifold AFTER the air and fuel has ALREADY been mixed, effectively produces a longer intake runner for an already mixed air/fuel column, and could produce a little extra torque down low, usually at a sacrifice of a few ponies on the top end.

Not to rehash all the threads here, but guys, I just can't see how this device has any reliable science to it on a port fuel injection engine. Would someone please show us where the real science is?

[QShip]

The gains that JetTech said he noticed down low, was from the combination of the spacer and removing the screen. Looking at the his dyno, I saw a difference.

One of the many things I like about JetTech is, he doesn't like to present subjective information. Reading his post about the spacer, he mentioned he had gone back to Airaid to have them explain what he saw on the dyno.

I don't know if they have gotten back to him yet.

[GETSOMZ28]

For those of you that think the TB spacer is snake oil, then dont buy it. The results have been post on the other site, and have shown to be positive and worth the cost IMO. Wait til more folks get it and do a before/after track run with it. I'll be there is an increase in trap speed. If you want to get really scientific, do a couple runs without it, then install it at the track and run it. That way all comparisons are made in similar weather conditions.

[37L1]

Get:

What has been your MPG gain so far?

[GETSOMZ28]

Originally Posted by sc186

Placebo effect, reverse engineering. Who knows. But from the dyno's that Jet Tech has done, i just dont see how paying money to lose power up top would be benificial for the performance minded driver. As for bottom end gains. Who knows. Until we can stick the tranny in 3rd on the dyno, or get a track tester like The Head to run it, im holding onto my money.

I dont understand what gear we dyno in has anything to do with showing gains?!? As long as you are comparing pulls run in the same gear, what does it matter? I think it would probably be best to get a comparison in 1st gear, that way we can see the gains over the entire rpm range.

[GETSOMZ28]

So far I am seeing a 1-1.5 mpg gain over my best stock mileage (driving harder even). I am babying this tank to see what it really is capable of.