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09-04-2012, 03:10 PM | #91 |
#1 Lemming
Drives: Light Blue '08 Yaris Join Date: Mar 2010
Location: Milwaukee, WI
Posts: 760
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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
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09-04-2012, 03:13 PM | #92 | |
play every day
Drives: 2012 Yaris L 2dr 5sp Join Date: Apr 2012
Location: Los Angeles
Posts: 1,961
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Quote:
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. Last edited by tooter; 09-04-2012 at 03:52 PM. |
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09-04-2012, 04:42 PM | #93 |
ULTIMATE
Drives: 07 Yaris Turbo Join Date: May 2007
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^ 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 |
DAMN. is it Thursday yet?
Get 'er done, Garm! |
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09-05-2012, 10:47 PM | #95 |
Drives: 2005 Toyota Echo Join Date: Aug 2010
Location: Brampton, ON
Posts: 505
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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.
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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, 01:08 AM | #96 |
Drives: 2010 Yaris S HB Join Date: Nov 2011
Location: Texas
Posts: 33
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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 |
Drives: 2017 L 3-door Join Date: Mar 2011
Location: Milwaukee, Wi
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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 |
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Drives: 07 Yaris Turbo Join Date: May 2007
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today's the day!
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09-06-2012, 10:44 AM | #99 |
Drives: 2008 Black Sedan Join Date: Oct 2008
Location: FL
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Yes! Any Expectations?
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09-06-2012, 11:40 AM | #100 |
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^ None. Just curious, like everyone else.
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09-06-2012, 12:20 PM | #101 |
#1 Lemming
Drives: Light Blue '08 Yaris Join Date: Mar 2010
Location: Milwaukee, WI
Posts: 760
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The anticipation is KILLING me! Hurry up and be done!
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09-06-2012, 12:22 PM | #102 |
Form>Function
Drives: 07 Flint Sedan Join Date: Dec 2009
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waiting for printout lol
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09-06-2012, 07:19 PM | #103 |
"Know it all"
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Great results! Very pleased :) Garm should be chiming in shortly...
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09-06-2012, 07:20 PM | #104 |
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Drives: 07 Yaris Turbo Join Date: May 2007
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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 |
Drives: 2008 Black Sedan Join Date: Oct 2008
Location: FL
Posts: 966
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Nice!
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09-06-2012, 08:53 PM | #106 |
Drives: 2005 Toyota Echo Join Date: Aug 2010
Location: Brampton, ON
Posts: 505
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PICS AND VIDS!
and boobs.
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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 |
Drives: 2008 Yaris HB MT Join Date: Jan 2009
Location: Portland, OR
Posts: 100
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Awesome!!! I look forward to seeing the results and buying one!!
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09-06-2012, 10:02 PM | #108 |
Drives: 2008 Yaris HB Join Date: Oct 2008
Location: University Place,WA
Posts: 828
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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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