tooter's manifold adventure... - Page 59 - Toyota Yaris Forums

CrankyOldMan · 03-09-2013, 06:32 PM

I had contemplated that, but then I would have to figure out how to weld up a rounded-square body. My idea was to match the radius of the base with some tubing, cut it into quarters, and weld panels between them. Given my lack of welding skill but substantial access to machining equipment, the tube + flanges seemed to make the most sense. It would still require someone to weld the seams, but tube-in-a-hole is easier than plates-hanging-in-space.

tooter · 03-10-2013, 12:11 AM

Quote:

Originally Posted by CrankyOldMan

I had contemplated that, but then I would have to figure out how to weld up a rounded-square body. My idea was to match the radius of the base with some tubing, cut it into quarters, and weld panels between them. Given my lack of welding skill but substantial access to machining equipment, the tube + flanges seemed to make the most sense. It would still require someone to weld the seams, but tube-in-a-hole is easier than plates-hanging-in-space.

The solution to that is simple.
A 6 inch diameter circular aluminium plate with a rounded square hole cut in the middle of it. I know a really competent welder who can weld anything. The secret to any project is finding good honest people who you can trust.

JustDidIt · 03-11-2013, 11:31 AM

Quote:

Originally Posted by tooter

I know a really competent welder who can weld anything. The secret to any project is finding good honest people who you can trust.

Hey Tooter, I need to come up 2 LA and meet this welder of yours. I have a project I would like to run by him. Whereabouts is he located?

tooter · 03-11-2013, 06:40 PM

Quote:

Originally Posted by JustDidIt

Hey Tooter, I need to come up 2 LA and meet this welder of yours. I have a project I would like to run by him. Whereabouts is he located?

Sure.

Ajax's
7933 Gloria Avenue
Van Nuys, CA 91406
818-781-5667

Bill is the owner.
Tell him tooter sent you.

His place is easy to get to as it's just West of the 405 off the Roscoe Boulevard exit.

West on Roscoe
South on Woodley
East on Strathern
South on Gloria

JustDidIt · 03-11-2013, 07:50 PM

Quote:

Originally Posted by tooter

Sure.

Ajax's
7933 Gloria Avenue
Van Nuys, CA 91406
818-781-5667

Bill is the owner.
Tell him tooter sent you.

His place is easy to get to as it's just West of the 405 off the Roscoe Boulevard exit.

West on Roscoe
South on Woodley
East on Strathern
South on Gloria

Awesome! Thank you!

mr_miles · 03-10-2013, 10:17 AM

I love this thread. I wish I was closer so that i could help :/

tooter · 03-10-2013, 03:40 PM

That would be lots of fun...

Well, at least I can keep you posted every step of the way. I just ordered a part for the manifold plenum, and will post pics when it arrives. It's something which has absolutely no relation to engines, and I'm adapting it to an unintended purpose.

As far as I can tell from searching the web for everything about intake manifold design I could find... no one has built the design I'm going to try. There may be a reason. Because it doesn't work!

But I'm going to find that out for myself. I'm building one manifold designated for testing only. And the good part is that if the experimental designs don't show any gains on the dyno, I can always simply cut them off of the runners and try something else.

Flipper_1938 · 03-10-2013, 05:06 PM

If you are going to try a really large diameter plenum...large diameter equals low velocity.

tooter · 03-10-2013, 06:06 PM

Quote:

Originally Posted by Flipper_1938

If you are going to try a really large diameter plenum...large diameter equals low velocity.

No, I won't be doing that. First off, there's no room for a larger plenum with this particular manifold design while keeping the air filter under the hood. And second I don't want to go larger. Instead, I'm going to a smaller plenum. The existing one is already almost non existent with that big thick intake tube occupying so much volume...

...and yet that design works great!

I believe it is because of the unique configuration with all the runner entrances pointing directly at the bore of the throttle body...

That internal intake tube terminates only a couple of inches in front ot the runner's entrances. So there is very little plenum volume left over.

When I get the part, I'll be able to measure exactly how much smaller if at all by filling both plenums with water. What will be radically different is the profile of the new plenum. I literally dreamed up this crazy idea...

Bluevitz-rs · 03-11-2013, 08:17 PM

Cool Tooter! Are you reworking the manifold with your own plenum and TB mount?

tooter · 03-11-2013, 09:44 PM

Quote:

Originally Posted by Bluevitz-rs

Cool Tooter! Are you reworking the manifold with your own plenum and TB mount?

Yes.

I have a totally "outside the box" idea and am going to build up a tooter and dyno it just to see how the concept works.

tooter · 03-15-2013, 04:16 PM

The new plenum came today, and it has nothing to do with intake manifolds. It's a structural architectural ornament.

This is the basic layout of the experimental tooter...

I filled up both plenums with water to test the volume, and was totally suprised to discover that they both hold exactly 26 ounces!

I'm always looking for omens and this is a really good one...

The old plenum appears to be a lot larger because there is so much material inside it which by displacement decreases the volume.

cali yaris · 03-15-2013, 04:50 PM

Phallic!

tooter · 03-15-2013, 06:21 PM

To you, everything is phallic.

CrankyOldMan · 03-15-2013, 10:01 PM

Hmm, what about the 6" tube remnant?

tooter · 03-15-2013, 11:14 PM

It's right here...

I think I'll try it without this time since the two plenum volumes already match. I can always cut off the hemisphere and add a ring later. And while the plenum is off I can clean up and smooth out the runner entrances.

CrankyOldMan · 03-16-2013, 11:58 AM

Quote:

Originally Posted by tooter

And while the plenum is off I can clean up and smooth out the runner entrances.

Yikes, those are some gnarly welds for a flow surface.

Thinking back to my own can-shaped design, the flow analysis showed that there was pretty much no air movement in the shoulder area of the TB side.

tooter · 03-16-2013, 12:33 PM

Well, remember that it was just a mass produced Corolla manifold and not a high performance racing component. The welds are actually well controlled, but I do think I can improve the runner ports with the trusty old Dremel... something that no manufacturer would take the time to do because there's no return on investment.

03-10-2013, 03:40 PM	#7
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	That would be lots of fun... Well, at least I can keep you posted every step of the way. I just ordered a part for the manifold plenum, and will post pics when it arrives. It's something which has absolutely no relation to engines, and I'm adapting it to an unintended purpose. As far as I can tell from searching the web for everything about intake manifold design I could find... no one has built the design I'm going to try. There may be a reason. Because it doesn't work! But I'm going to find that out for myself. I'm building one manifold designated for testing only. And the good part is that if the experimental designs don't show any gains on the dyno, I can always simply cut them off of the runners and try something else. Last edited by tooter; 03-10-2013 at 03:52 PM.

03-15-2013, 04:50 PM	#13
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,857	Phallic! __________________ 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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03-09-2013, 06:32 PM	#1
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,332	I had contemplated that, but then I would have to figure out how to weld up a rounded-square body. My idea was to match the radius of the base with some tubing, cut it into quarters, and weld panels between them. Given my lack of welding skill but substantial access to machining equipment, the tube + flanges seemed to make the most sense. It would still require someone to weld the seams, but tube-in-a-hole is easier than plates-hanging-in-space.

03-10-2013, 05:06 PM	#8
Flipper_1938 Drives: 2010 Yaris Sedan Join Date: Oct 2010 Location: Kentucky Posts: 529	If you are going to try a really large diameter plenum...large diameter equals low velocity.

03-11-2013, 08:17 PM	#10
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	Cool Tooter! Are you reworking the manifold with your own plenum and TB mount?

03-15-2013, 04:16 PM	#12
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	The new plenum came today, and it has nothing to do with intake manifolds. It's a structural architectural ornament. This is the basic layout of the experimental tooter... I filled up both plenums with water to test the volume, and was totally suprised to discover that they both hold exactly 26 ounces! I'm always looking for omens and this is a really good one... The old plenum appears to be a lot larger because there is so much material inside it which by displacement decreases the volume.

03-15-2013, 06:21 PM	#14
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	To you, everything is phallic.

03-15-2013, 10:01 PM	#15
CrankyOldMan 2ZR swap. DO IT! Ask how! View User's Garage Drives: 09 Meteoric Metallic HB Join Date: Feb 2011 Location: West Michigan Posts: 2,332	Hmm, what about the 6" tube remnant?

03-15-2013, 11:14 PM	#16
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	It's right here... I think I'll try it without this time since the two plenum volumes already match. I can always cut off the hemisphere and add a ring later. And while the plenum is off I can clean up and smooth out the runner entrances.

03-16-2013, 12:33 PM	#18
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	Well, remember that it was just a mass produced Corolla manifold and not a high performance racing component. The welds are actually well controlled, but I do think I can improve the runner ports with the trusty old Dremel... something that no manufacturer would take the time to do because there's no return on investment.