hahaha

burn

 

No it does not but he would actually need to see the graphs in order to know how it would work.

James

 

on down that page theres a dyno before and after....from an 07 tundra

http://peswiki.com/images/0/05/Dyno_...rdson_bf16.gif

heres another website about it to

http://www.gadgetmanscoolcarmods.com/?page=1

if this actually worked i would do it for sure!

 

I stand corrected, and I am a retard!

 

If the tuning was done in an hour and cost less then $10 then that would make sense. But if you did tune it and provided more power than a TB modified stock motor, whos to say you wouldn't get even more performance bolting on a modified TB? I guess the only way to know is try it.

 

There was an article like this in popular science once. Some guy in India found he could cut funny grooves into combustion chambers and make engines do incredible things. Only thing was that the engines he worked on were basically Briggs lawnmower engines that some of India's economy cars used.

Maybe someone who is familiar with sports cars can tell us how high-performance throttle bodies differ from standard ones. Do they have interesting grooves and patterns in them?

 

This thread has become very interesting I can't wait for someone to duplicate and post their results. If this does end up showing good results for people I suppose we could settle on saying we really don't know all the secrets of the good ole ICE. I always approach these "new" ideas with an open mind, I can't help but think the oil companies had a foot hold on the manufacturers and stipulated what efficiencies their motors could have. I'm not convinced that there is a conspiracy, but I do believe it's a possibility.

 

Linear, I am glad to see that even though people are skeptical of the mod, you understand that noone is "attacking you." Too many folks on here get their feelings hurt if someone doesn't like their idea, then threads sometimes turn ugly. This has turned into a mature, but still interesting exchange.

Now let's see some dynos!!!!!!!

 

Iv got a spare TB or two layin around. I might give it a shot to see if its legit or not. Everyone knows the 3VZ could use a little more kick. If I end up modding mine Ill post up the results my ass dyno gives me.

 

Swirl is essentially turbulence, which can be measured. Wouldn't more swirl and tumbling also result in a greater pressure drop across the TB?

 

I posted earlier but it didn't go through so I'll attempt to repeat. Fist off I'm not the inventor of this mod, I'm afraid it appears that way sometimes.

I can think of a few reasons why Toyota didn't capatilze on this mod, it doesn't work I'm disillusioned, they didn't think of it, too high of a manufacturing cost, etc,etc...

The air flow (supposedly) develops into two wave forms that are opposing and this causes an oscillation in the manifold pressure. At the lower pressure the fuel atomizes easier allowing for a better burn. That is the proposed science behind the improved performance. Personally I think that when the throttle plate is opened to the groove more air is introduced without the TPS registering the increase in volume. This creates a better burn, the VAF is not sensitive enough to notice the change due to its "block" calculations.
So, essentially you have a bored TB for a limited throttle range. However if the science behind the wave form is correct it's a bonus!

I agree with EPA having the clout, but whos controling them?

 

TWADDLE............ I say...


"The Marines I have seen around the world have the cleanest bodies, the filthiest minds, the highest morale and the lowest morals of any group of animals I have ever seen. Thank GOD for the United States Marine Corps!" - Eleanore Roosevelt

 

I'm calling BS as well. The turbulence inside the manifold plus the pulsations from the intake valves getting reflected back into the manifold would disrupt any wave pattern. On top of that, it's very unlikely the wave phasing would be the same for each cylinder since each intake runner is a different distance from the throttle body.

 

Perhaps a pitot tube? Gather some data about the velocity profile and relate it back to turbulent flow regime equations. You could also compare that with Reynold's number flow predictions. But I'm not a fluids engineer.

 

I've heard of measuring flow with vortecies but I have no idea on how you could measure "swirl". I'm sure it could be done in a lab with lasers and other fancy stuff. I'm not sure what the point of measuring the "swirls" is.

 

Colored smoke introduced to an air flow?

 

That sounds about right. Then bounce lasers off the particles. Wow, that would look really cool in a clear throttle body and intake manifold!