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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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06-12-2015, 08:08 PM
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#1 |
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BOXER FR
Join Date: Oct 2011
Drives: WRB BRZ Limited
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ASM Autobacs / TODA throttle body
google translate is not good enough..
 can anyone translate please?http://www.autobacs-asm.com/blog/asm...s_view&no=2865
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| The Following User Says Thank You to mokinbird87 For This Useful Post: | CSG Mike (06-12-2015) |
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06-12-2015, 09:13 PM
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#2 |
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That Guy
Join Date: Dec 2011
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Looks like a bored out OEM unit.
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06-12-2015, 10:34 PM
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#3 | |
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BOXER FR
Join Date: Oct 2011
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Quote:
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Build Thread of the "STI theme BRZ"http://www.ft86club.com/forums/showthread.php?t=61522
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06-12-2015, 10:44 PM
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#4 | |
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That Guy
Join Date: Dec 2011
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Quote:
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06-13-2015, 05:19 PM
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#5 |
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Member
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hey this throttle body is only 2.3 mm bigger not worth it
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09-10-2016, 06:33 AM
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#6 |
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Senior Member
Join Date: Mar 2014
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This is one of the most basic modifications in ASM Autobacs, but not well known in Western countries. Even a 2.3mm increase in the valve diameter, it makes a considerable change in the circle area. Standard valve diameter opening is 65mm and with the change it goes to 67.3mm. Circle area is 3316 and after change it goes to 3555. Overall a 7% increase.
Additionally, they create a tapered entrance in the throttle body with a maximum diameter opening of 72mm:  This helps to accelerate air flow even more using the Venturi effect. |
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09-10-2016, 10:25 AM
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#7 |
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Senior Member
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I think Subaru has a pretty good idea what the venturi size should be.
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| The Following User Says Thank You to Lantana frs For This Useful Post: | stevesnj (09-12-2016) |
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