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06-11-2009, 12:33 PM | #1 |
Drives: Polar White Yaris HB Join Date: Dec 2008
Location: Honolulu
Posts: 263
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Intake for the 1ZZ throttle body?
I am very pleased with the butt dyno performance of the 1zz throttle body. When I put on the Bomz intake, I noticed the tubing is slightly smaller than the diameter of the throttle body itself.
Would there be a benefit to have a custom diameter intake? It would probably be easy to make. The other option is to find another vehicle such as the TS or a Matrix/Corolla pick up a short ram intake an use it instead. Do you think doing this would make anymore power? It could possibly really make a difference with a different intake manifold. |
06-11-2009, 02:15 PM | #2 |
Learn to Relax
Drives: 2007, Meteorite, LB Join Date: Dec 2008
Location: Anaheim, CA
Posts: 2,070
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You need to look at the inside diameter. I don't think a slight difference would affect performance. If anything the MAF sticking out in the middle of airflow creates more restriction.
Last edited by yaris-me; 06-12-2009 at 11:44 AM. |
06-11-2009, 02:55 PM | #3 | |
Start another Oil Thread!
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i wouldn't recommend a larger diameter intake tube either. wreaks havoc on the ECU if you don't compensate for it.
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06-12-2009, 07:51 AM | #4 |
daily driver
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agreed....i tried my intake from my matrix, which was 2.5", and it was incompatible w/ my yaris
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06-12-2009, 06:03 PM | #5 |
Drives: Polar White Yaris HB Join Date: Dec 2008
Location: Honolulu
Posts: 263
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Wow, so the consensus is there would be no benefit in increaseing the diameter of an intake piping to match the throttle body?
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06-12-2009, 06:07 PM | #6 |
Super Moderator
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I think there would be a much higher improvement by port matching the intake mani to the new TB diameter. Even then the change wouldn't be drastic.
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06-13-2009, 02:44 PM | #7 |
daily driver
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i got a CEL for running lean....
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06-13-2009, 03:47 PM | #8 |
I'm building a 1nz-fe Aluminum Intake Manifold with 1zz-fe Throttle Body. The Intake is like this on the 3TC but is littler than this one and has an inclination. I'll take some pics to post step by step the process. Only I need is the 1zz TB to drill the spacer to bolt it and weld, a friend has one but he doesn't bring it to me yet.
Last edited by EdgarTRD1.8; 06-14-2009 at 11:42 PM. |
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06-13-2009, 07:54 PM | #9 |
Tried a larger diameter tube threw a code right away, the sensor is very touchy.
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06-14-2009, 12:02 AM | #10 | |
Learn to Relax
Drives: 2007, Meteorite, LB Join Date: Dec 2008
Location: Anaheim, CA
Posts: 2,070
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Quote:
http://www.yarisworld.com/forums/showthread.php?t=11971 Then you need to port and polish, and match intake openings. |
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