tooter's manifold adventure... - Page 9 - Toyota Yaris Forums

tooter · 06-30-2012, 03:24 PM

Quote:

Originally Posted by cali yaris

I wonder what my 0-100 is...

I use a calendar to time mine...

Do you have any tips for making a good accurate dyno run? What's the best tire pressure for the rollers?

cali yaris · 06-30-2012, 06:34 PM

In terms of prep, dyno it like you drive it for the most accurate result.

You might write down a few things to compare to future dynos, ambient air temp, humidity, tire pressure, what fuel is in the car, etc.

tooter · 06-30-2012, 08:47 PM

I will... just normal 87 gas 40 psi in the tires and no other changes so that the conditions will be as similar as possible between the two sets of runs.

tooter · 06-30-2012, 09:02 PM

Some pics with the air filter removed...

You can see how close the throttle body and MAF sensor are to the stack.

And heres a video of the engine running...

http://www.youtube.com/watch?v=JQt2uJ7PYfQ

There's not much intake noise even with the camera stuck up close. In the beginning the ECU was fishing around for an idle mixture trying to adjust to the open intake, but found its equilibrium by the end of the video.

WeeYari · 07-02-2012, 02:27 PM

Quote:

Originally Posted by tooter

There's not much intake noise even with the camera stuck up close.

Intake noise is really only apparent at WOT under load. Sitting still at idle generates nothing. Sitting still and punching the throttle only produces a brief sucking sound. Out on the road, WOT is what makes them growl, which btw, cannot be heard with anything but the oem exhaust installed.

tooter · 07-02-2012, 04:42 PM

Quote:

Originally Posted by WeeYari

Intake noise is really only apparent at WOT under load. Sitting still at idle generates nothing. Sitting still and punching the throttle only produces a brief sucking sound. Out on the road, WOT is what makes them growl, which btw, cannot be heard with anything but the oem exhaust installed.

Yes, I found that out when I did some flat out runs on the freeway last week, in preparation for the dyno tune. Could hear a slight roaring sound over the exhaust at wide open throttle.

In normal driving it's just as quiet as the stock air box... which makes the little lady happy.

suckerface · 07-02-2012, 10:00 AM

FWIW, I came across this today...

http://www.rhdjapan.com/trd-exhaust-...-corolla-51956

cali yaris · 07-02-2012, 10:04 AM

^ wow.

TRD Exhaust Manifold Header IST bB Vitz Corolla

Was: $ 1,086.96 Sale: $ 869.57

suckerface · 07-02-2012, 10:08 AM

They have some great stuff on there, but you're certainly paying a premium for it. Just a shot in the dark, but I'm guessing the MI prototype will come in well under $800, right?

cali yaris · 07-02-2012, 10:13 AM

I think that's an exhaust manifold, not an intake manifold?

suckerface · 07-02-2012, 10:17 AM

*facepalm*

I'll just be over here in the corner, continuing to observe.

Bluevitz-rs · 07-02-2012, 10:19 AM

cali yaris · 07-02-2012, 10:20 AM

cali yaris · 07-02-2012, 10:20 AM

but yeah.... less than $800.

tooter · 07-02-2012, 11:20 AM

Interesting...

Looks like they tried to make the runners as long as they could by rotating them 90 degrees counterclockwise around the axis of the exhaust exit...

Quote:

TRD Exhaust Manifold Header IST bB Vitz Corolla

Was: $ 1,086.96 Sale: $ 869.57

What a deal... for just eight. Does that include free shipping? I'll take the Weapon R for two.

Viperoni · 07-03-2012, 10:01 PM

Quote:

Originally Posted by tooter

Interesting...

Looks like they tried to make the runners as long as they could by rotating them 90 degrees counterclockwise around the axis of the exhaust exit...

What a deal... for just eight. Does that include free shipping? I'll take the Weapon R for two.

And the runners are still a bit too short to do anything very useful, but they're not far off. The problem is the downpipe mounts so close to the motor it's almost impossible to make a smooth & straight header that's long enough.

tooter · 07-04-2012, 12:05 AM

Quote:

Originally Posted by Viperoni

And the runners are still a bit too short to do anything very useful, but they're not far off. The problem is the downpipe mounts so close to the motor it's almost impossible to make a smooth & straight header that's long enough.

You're right. It needs to be like this Yaris Weapon R header to make a real difference...

xnamerxx · 07-04-2012, 01:43 AM

Quote:

Originally Posted by tooter

You're right. It needs to be like this Yaris Weapon R header to make a real difference...

Just figure out how to import this exhaust to the states.

http://www.kansaiexhaust.com/product...ction=category

06-30-2012, 06:34 PM	#2
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	In terms of prep, dyno it like you drive it for the most accurate result. You might write down a few things to compare to future dynos, ambient air temp, humidity, tire pressure, what fuel is in the car, etc. __________________ 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.

06-30-2012, 09:02 PM	#4
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	Some pics with the air filter removed... You can see how close the throttle body and MAF sensor are to the stack. And heres a video of the engine running... http://www.youtube.com/watch?v=JQt2uJ7PYfQ There's not much intake noise even with the camera stuck up close. In the beginning the ECU was fishing around for an idle mixture trying to adjust to the open intake, but found its equilibrium by the end of the video. Last edited by tooter; 07-01-2012 at 11:03 AM.

07-02-2012, 10:00 AM	#7
suckerface #1 Lemming Drives: Light Blue '08 Yaris Join Date: Mar 2010 Location: Milwaukee, WI Posts: 760	FWIW, I came across this today... http://www.rhdjapan.com/trd-exhaust-...-corolla-51956 __________________

07-02-2012, 10:04 AM	#8
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ wow. TRD Exhaust Manifold Header IST bB Vitz Corolla Was: $ 1,086.96 Sale: $ 869.57 __________________ 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.

07-02-2012, 10:08 AM	#9
suckerface #1 Lemming Drives: Light Blue '08 Yaris Join Date: Mar 2010 Location: Milwaukee, WI Posts: 760	They have some great stuff on there, but you're certainly paying a premium for it. Just a shot in the dark, but I'm guessing the MI prototype will come in well under $800, right? __________________

06-30-2012, 08:47 PM	#3
tooter play every day Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012 Location: Los Angeles Posts: 1,962	I will... just normal 87 gas 40 psi in the tires and no other changes so that the conditions will be as similar as possible between the two sets of runs.

07-02-2012, 10:13 AM	#10
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	I think that's an exhaust manifold, not an intake manifold? __________________ 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.

07-02-2012, 10:17 AM	#11
suckerface #1 Lemming Drives: Light Blue '08 Yaris Join Date: Mar 2010 Location: Milwaukee, WI Posts: 760	facepalm I'll just be over here in the corner, continuing to observe. __________________

07-02-2012, 10:19 AM	#12
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

07-02-2012, 10:20 AM	#13
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.

07-02-2012, 10:20 AM	#14
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	but yeah.... less than $800. __________________ 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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