Micro Image Intake Manifold thread - Page 6 - Toyota Yaris Forums

suckerface · 09-04-2012, 03:10 PM

If I understand intake properly, you'd want more heat soak. Intake air temps you want to be lower, exhaust should be warmer. Heating the intake temps will rob some of the power (hence why cold-air intakes provide more power over short-ram and OEM)

Anyone feel free to correct me if I'm wrong.

:EDIT:

Completely misread, and didn't notice the "gasket" portion of what was said. Thought you meant the ENTIRE manifold...

I'll go back to my corner now

tooter · 09-04-2012, 03:13 PM

Quote:

Originally Posted by baseballfan416

I wonder if changing the intake manifold gasket to a non-metal material would help? More metal (compared to the plastic manifold) could translate to some heat soak?

I do believe that it would...

I did the dyno runs without it and the manifold was blazing hot. That big one inch thick slab of aluminium "heatsink" laying across the intake ports transfers engine heat like crazy. I'm going to get longer bolts to put the insulating gasket on.

cali yaris · 09-04-2012, 04:42 PM

^ The manifold will get pretty hot from regular driving, especially stop and go, or "around town". Once you are moving pretty well, the longer runners will help protect against too much heat transfer.

The insulator/spacer might help a little. I'm not sure we'll be able to test one on the dyno though.

justjesus · 09-04-2012, 05:44 PM

DAMN. is it Thursday yet?
Get 'er done, Garm!

Viperoni · 09-05-2012, 10:47 PM

I could see a switch keeping the rad fan on all the time helping out a bit too, but yes, you want the intake air temps cold.

10 Francis · 09-06-2012, 01:08 AM

Wouldn't blowing hot air from the radiator be detrimental? Or are you (Viperoni) assuming that the radiator will be cooler than the manifold?
At any rate, some sort of wrapping or heat shielding would definitely seem to be in order as well as a phenolic spacer. Heat soak and weight are the two main reasons most OEM intake manifolds are made of a plastic material now (miles per gallon and tailpipe emissions).

baseballfan416 · 09-06-2012, 02:48 AM

I'm only speaking from experience with honda's. Granted... a bone stock k20a2 (rsx-s) makes roughly 160whp, so in effect, it may be a magnified effect.

http://hondata.com/heatshieldgasket.html

The problem I see is that these metal manifolds increase heat soak (regardless of the mechanism by which it occurs)...

http://shop.microimageonline.com/The...GE-tig-1nz.htm

Wouldn't a product like the above potentially mitigate that heat soak? I almost wonder if tooter's manifold project could have realized better gains via the use of something like this.

cali yaris · 09-06-2012, 10:07 AM

today's the day!

Yoda · 09-06-2012, 10:44 AM

Yes! Any Expectations?

cali yaris · 09-06-2012, 11:40 AM

^ None. Just curious, like everyone else.

suckerface · 09-06-2012, 12:20 PM

The anticipation is KILLING me! Hurry up and be done!

1.5 · 09-06-2012, 12:22 PM

waiting for printout lol

Jeff@MicroImage · 09-06-2012, 07:19 PM

Great results! Very pleased :) Garm should be chiming in shortly...

cali yaris · 09-06-2012, 07:20 PM

SUCCESS. Didn't make much top end, but a nice midrange bump, right where you want it. Specs and dyno charts to be posted later. Couple of small improvements to be made in production.

I'm happy.

Yoda · 09-06-2012, 08:23 PM

Nice!

Viperoni · 09-06-2012, 08:53 PM

PICS AND VIDS!
and boobs.

4/20 NEVER FORGET · 09-06-2012, 09:34 PM

Awesome!!! I look forward to seeing the results and buying one!!

bzinn 1 · 09-06-2012, 10:02 PM

nice to see somebody finally bringing out an intake manifold...I cant stand the plastic one...will be saving up for this mod for certain...

09-04-2012, 03:10 PM	#91
suckerface #1 Lemming Drives: Light Blue '08 Yaris Join Date: Mar 2010 Location: Milwaukee, WI Posts: 760	If I understand intake properly, you'd want more heat soak. Intake air temps you want to be lower, exhaust should be warmer. Heating the intake temps will rob some of the power (hence why cold-air intakes provide more power over short-ram and OEM) Anyone feel free to correct me if I'm wrong. :EDIT: Completely misread, and didn't notice the "gasket" portion of what was said. Thought you meant the ENTIRE manifold... I'll go back to my corner now __________________

09-05-2012, 10:47 PM	#95
Viperoni Drives: 2005 Toyota Echo Join Date: Aug 2010 Location: Brampton, ON Posts: 505	I could see a switch keeping the rad fan on all the time helping out a bit too, but yes, you want the intake air temps cold. __________________ 2006 Saturn Ion Redline 2005 Toyota Echo RS 4dr hatch - Cyl #3 bad - sold 2000 Toyota Echo 2dr coupe - The track car - rusty & scrapped

09-06-2012, 12:20 PM	#101
suckerface #1 Lemming Drives: Light Blue '08 Yaris Join Date: Mar 2010 Location: Milwaukee, WI Posts: 760	The anticipation is KILLING me! Hurry up and be done! __________________

09-06-2012, 12:22 PM	#102
1.5 Form>Function Drives: 07 Flint Sedan Join Date: Dec 2009 Location: Tampa Posts: 4,018	waiting for printout lol __________________ Instagram: @southernstreets_phil Facebook.com/southernstreetsempire

09-06-2012, 07:19 PM	#103
Jeff@MicroImage "Know it all" Drives: Lancia Delta Integrale Join Date: Jan 2012 Location: SFV, CA Posts: 77	Great results! Very pleased :) Garm should be chiming in shortly... __________________ www.microimageonline.com

09-04-2012, 04:42 PM	#93
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ The manifold will get pretty hot from regular driving, especially stop and go, or "around town". Once you are moving pretty well, the longer runners will help protect against too much heat transfer. The insulator/spacer might help a little. I'm not sure we'll be able to test one on the dyno though.

09-04-2012, 05:44 PM	#94
justjesus View User's Garage Drives: 2008 Liftback Join Date: Oct 2008 Location: Orange County Posts: 962	DAMN. is it Thursday yet? Get 'er done, Garm!

09-06-2012, 01:08 AM	#96
10 Francis Drives: 2010 Yaris S HB Join Date: Nov 2011 Location: Texas Posts: 33	Wouldn't blowing hot air from the radiator be detrimental? Or are you (Viperoni) assuming that the radiator will be cooler than the manifold? At any rate, some sort of wrapping or heat shielding would definitely seem to be in order as well as a phenolic spacer. Heat soak and weight are the two main reasons most OEM intake manifolds are made of a plastic material now (miles per gallon and tailpipe emissions).

09-06-2012, 02:48 AM	#97
baseballfan416 Drives: 2017 L 3-door Join Date: Mar 2011 Location: Milwaukee, Wi Posts: 161	I'm only speaking from experience with honda's. Granted... a bone stock k20a2 (rsx-s) makes roughly 160whp, so in effect, it may be a magnified effect. http://hondata.com/heatshieldgasket.html The problem I see is that these metal manifolds increase heat soak (regardless of the mechanism by which it occurs)... http://shop.microimageonline.com/The...GE-tig-1nz.htm Wouldn't a product like the above potentially mitigate that heat soak? I almost wonder if tooter's manifold project could have realized better gains via the use of something like this.

09-06-2012, 10:07 AM	#98
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	today's the day!

09-06-2012, 10:44 AM	#99
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Yes! Any Expectations?

09-06-2012, 11:40 AM	#100
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	^ None. Just curious, like everyone else.

09-06-2012, 07:20 PM	#104
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	SUCCESS. Didn't make much top end, but a nice midrange bump, right where you want it. Specs and dyno charts to be posted later. Couple of small improvements to be made in production. I'm happy.

09-06-2012, 08:23 PM	#105
Yoda Drives: 2008 Black Sedan Join Date: Oct 2008 Location: FL Posts: 966	Nice!

09-06-2012, 08:53 PM	#106
Viperoni Drives: 2005 Toyota Echo Join Date: Aug 2010 Location: Brampton, ON Posts: 505	PICS AND VIDS! and boobs. __________________ 2006 Saturn Ion Redline 2005 Toyota Echo RS 4dr hatch - Cyl #3 bad - sold 2000 Toyota Echo 2dr coupe - The track car - rusty & scrapped

09-06-2012, 09:34 PM	#107
4/20 NEVER FORGET Drives: 2008 Yaris HB MT Join Date: Jan 2009 Location: Portland, OR Posts: 100	Awesome!!! I look forward to seeing the results and buying one!!

09-06-2012, 10:02 PM	#108
bzinn 1 Drives: 2008 Yaris HB Join Date: Oct 2008 Location: University Place,WA Posts: 828	nice to see somebody finally bringing out an intake manifold...I cant stand the plastic one...will be saving up for this mod for certain...

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