tooter's manifold adventure... - Page 61 - Toyota Yaris Forums

Bluevitz-rs · 03-19-2013, 08:42 PM

P.S. Tooter, you can clip that wire screen out of the gasket. Someone here flow benched a TB with and without it and it just causes restriction.

tooter · 03-20-2013, 01:15 AM

Quote:

Originally Posted by Bluevitz-rs

P.S. Tooter, you can clip that wire screen out of the gasket. Someone here flow benched a TB with and without it and it just causes restriction.

How many cfm difference did it make at WOT?

I was told that the screen helps to break up the positive crankcase venting oil fumes. Whenever a manufacturer makes a more expensive casting to fit a more expensive part, they have a good reason to do it.

Bluevitz-rs · 03-20-2013, 07:36 AM

If you were at all concerned about emissions you would have left the stock airbox in with the charcoal pre-filter. But no, that screen is there to make the air turbulent as it enters the stock plastic intake manifold.

tooter · 03-20-2013, 11:33 AM

Quote:

Originally Posted by Bluevitz-rs

If you were at all concerned about emissions you would have left the stock airbox in with the charcoal pre-filter. But no, that screen is there to make the air turbulent as it enters the stock plastic intake manifold.

Hey Blue... take a look at this flow simulation.

http://www.youtube.com/watch?v=WzWsUB79e-A

And look at this one that shows the difference in the timing of the air flow past each side of the butterfly...

http://www.youtube.com/watch?v=k-MN6igceog

Notice how the flow on the backside of the butterfly is way more turbulent than the tipped in side. This means that the screen actually helps to stabilize the turbulence the back side.

The person who did the flow testing must have had an instrument that generated a numerical comparison. Do you know how much cubic feet per minute that difference was?

Here's another one showing what happens on the backside of a butterfly in the flat position...

http://www.youtube.com/watch?v=0z_hFZx7qvE

A screen would help to stabilize the flow by breaking up those rotating eddys.

I've watched a lot of these simulations over and over again to help me to understand the dynamics of flow. It's totally fascinating.

Bluevitz-rs · 03-20-2013, 06:34 PM

I think it it was only a cfm more but didn't know about the airflow thing. Maybe it's better to leave it in then. I guess it's more of a part throttle thing than full throttle.

tooter · 03-20-2013, 06:57 PM

Quote:

Originally Posted by Bluevitz-rs

I think it it was only a cfm more but didn't know about the airflow thing. Maybe it's better to leave it in then. I guess it's more of a part throttle thing than full throttle.

I'm pretty sure you're right. I had already cut the screen off of on a O ring just to see what would happen and couldn't feel any difference, so I put another gasket back in with the screen.

tooter · 03-28-2013, 06:08 PM

Just finished up another tooter today...

We start on the throttle body base plate for the experimental tooter next week...

The design will combine the base plate and reverse velocity stack together in one part. Then I'll drill a hole in the hemisphere and have it welded into place.

CrankyOldMan · 03-28-2013, 06:19 PM

It's like necromancy, but with beautiful results!

junorico24 · 03-28-2013, 07:10 PM

Looks like something from star ship enterprise.

tooter · 03-28-2013, 07:19 PM

Quote:

Originally Posted by junorico24

Looks like something from star ship enterprise.

Yeah, it does sort of have that retro-futuristic space look...

I'll call it the tooter e.t.

cali yaris · 03-28-2013, 07:26 PM

rather phallic if you were to ask me...

tooter · 03-28-2013, 07:31 PM

I didn't ask because I already know the answer...

Bluevitz-rs · 03-28-2013, 07:43 PM

Quote:

Originally Posted by cali yaris

rather phallic if you were to ask me...

I had to look that word up LMAO!

Flipper_1938 · 03-29-2013, 07:03 AM

Quote:

Originally Posted by cali yaris

rather phallic if you were to ask me...

The "Richard Cranium Special"

cali yaris · 03-29-2013, 01:19 AM

tooter · 03-29-2013, 02:00 AM

mr_miles · 03-29-2013, 07:25 AM

Quote:

Originally Posted by cali yaris

I lol'd and now my coworker is looking at me funny

cali yaris · 03-29-2013, 11:51 AM

haha, nice. but I got us off-topic. Back to the tooter-penis-project-thing.

03-28-2013, 06:08 PM	#7
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	Just finished up another tooter today... We start on the throttle body base plate for the experimental tooter next week... The design will combine the base plate and reverse velocity stack together in one part. Then I'll drill a hole in the hemisphere and have it welded into place. Last edited by tooter; 03-28-2013 at 06:21 PM.

03-28-2013, 07:26 PM	#11
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	rather phallic if you were to ask me... __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-29-2013, 01:19 AM	#15
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	__________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-29-2013, 11:51 AM	#18
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	haha, nice. but I got us off-topic. Back to the tooter-penis-project-thing. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

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03-19-2013, 08:42 PM	#1
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	P.S. Tooter, you can clip that wire screen out of the gasket. Someone here flow benched a TB with and without it and it just causes restriction.

03-20-2013, 07:36 AM	#3
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	If you were at all concerned about emissions you would have left the stock airbox in with the charcoal pre-filter. But no, that screen is there to make the air turbulent as it enters the stock plastic intake manifold.

03-20-2013, 06:34 PM	#5
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	I think it it was only a cfm more but didn't know about the airflow thing. Maybe it's better to leave it in then. I guess it's more of a part throttle thing than full throttle.

03-28-2013, 06:19 PM	#8
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,333	It's like necromancy, but with beautiful results!

03-28-2013, 07:10 PM	#9
junorico24 Drives: toyota yaris yrs Join Date: Jun 2007 Location: Sydney Posts: 642	Looks like something from star ship enterprise.

03-28-2013, 07:31 PM	#12
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	I didn't ask because I already know the answer...

03-29-2013, 02:00 AM	#16
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962