Throttle chamber - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Trap63 · 01-10-2022, 05:27 AM

Hello,
anyone can proceed for dia size measurement of MY22 Throttle chamber?
Thanks

x808drifter · 01-10-2022, 09:48 AM

Any reason you don't have it fixed free?

Trap63 · 01-10-2022, 09:59 AM

Quote:

Originally Posted by x808drifter

Any reason you don't have it fixed free?

it's to verify if dia is larger than prevoius series avoiding to buy larger aftermarket chamber not so cheaper like OEM. Why to pay $900 for Cusco Throttle if OEM US may cost half?

x808drifter · 01-10-2022, 10:09 AM

I'll save you time, money and effort.
A larger throttle body isn't going to do anything on these cars. New version or old.

Trap63 · 01-10-2022, 10:10 AM

Quote:

Originally Posted by x808drifter

I'll save you time, money and effort.
A larger throttle body isn't going to do anything on these cars. New version or old.

I am supercharged HKS.

x808drifter · 01-10-2022, 10:13 AM

Quote:

Originally Posted by Trap63

I am supercharged HKS.

Still make zero difference.
The throttle body is not a restriction at power levels under 800+ hp.

PulsarBeeerz · 01-10-2022, 01:00 PM

It is larger 70-74mm, something like that. Zero guarantee it will fit GEN1 IM as the bolt pattern may have changed. In the states I sent my OEM TB to Maxbore.com to enlarge from 65 to 68mm for ~$150. Maybe he'll do international? This is all Cusco does. It makes a noticeable difference in midrange and drive ability when NA because not everything is about peak power.. But with FI since you aren't trying to vacuum air in as it is forced, a larger TB can become more on/off switch when it comes to throttle modulation. I still have my bored out TB with a JRSC and I'd skip it tbh.

Scargod · 12-27-2022, 09:39 AM

Related question: What can I use instead of the $35 throttle body o-ring style gasket from Subaru?
What is its size in mm's? What is comparable?
Surely the 71mm throttle body is a standard one used on many cars as the style of gasket is everywhere for $5, but I don't know which one fits!
Subaru Part number: 16175AA570
The dimensions of the groove it fits in are: 82mm OD, 76mm ID.
In cross-section it's like an airship/fat cigar shape and that end to end dimension is around 6mm.
It's not like previous Gens where it was a flat gasket like most older Subaru's run.

soundman98 · 12-27-2022, 09:55 AM

Quote:

Originally Posted by Scargod

Related question: What can I use instead of the $35 throttle body gasket from Subaru?
What is its size? What is comparable?
Part number: 16175AA570

i was always told cereal boxes make great gaskets...

knew a few guys that would have perpetual diff leaks using the oem diff cover seals, but make one out of a cardboard cereal box, and it'd never leak again

01-10-2022, 05:27 AM	#1
Trap63 Senior Member Join Date: Apr 2013 Drives: Brz WRB - Europe LHD Location: TURIN - Piedmont - ITALY Posts: 921 Thanks: 1,163 Thanked 834 Times in 288 Posts Mentioned: 40 Post(s) Tagged: 1 Thread(s)	Throttle chamber Hello, anyone can proceed for dia size measurement of MY22 Throttle chamber? Thanks __________________

12-27-2022, 09:39 AM	#8
Scargod Track Day Junkie Join Date: Nov 2021 Drives: 2022 BRZ Limited Location: Connecticut Posts: 139 Thanks: 82 Thanked 92 Times in 50 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Related question: What can I use instead of the $35 throttle body o-ring style gasket from Subaru? What is its size in mm's? What is comparable? Surely the 71mm throttle body is a standard one used on many cars as the style of gasket is everywhere for $5, but I don't know which one fits! Subaru Part number: 16175AA570 The dimensions of the groove it fits in are: 82mm OD, 76mm ID. In cross-section it's like an airship/fat cigar shape and that end to end dimension is around 6mm. It's not like previous Gens where it was a flat gasket like most older Subaru's run. __________________ Try this Jalapeno son! It ain't hot... Scargo on IWSTI (Journal of STI track car) Scargod on NASIOC. Track Day Videos Last edited by Scargod; 12-27-2022 at 04:23 PM. Reason: more added. Things explained...

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01-10-2022, 09:48 AM	#2
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,647 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Any reason you don't have it fixed free?

01-10-2022, 10:09 AM	#4
x808drifter LMGTFY Join Date: Mar 2016 Drives: 13 FRS, 91 Miata Location: Lava Town, HI Posts: 2,776 Thanks: 5,561 Thanked 3,647 Times in 1,625 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	I'll save you time, money and effort. A larger throttle body isn't going to do anything on these cars. New version or old.

01-10-2022, 01:00 PM	#7
PulsarBeeerz Senior Member Join Date: Mar 2017 Drives: JRSC BRZ SOLD Location: Ohio Posts: 939 Thanks: 680 Thanked 739 Times in 396 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	It is larger 70-74mm, something like that. Zero guarantee it will fit GEN1 IM as the bolt pattern may have changed. In the states I sent my OEM TB to Maxbore.com to enlarge from 65 to 68mm for ~$150. Maybe he'll do international? This is all Cusco does. It makes a noticeable difference in midrange and drive ability when NA because not everything is about peak power.. But with FI since you aren't trying to vacuum air in as it is forced, a larger TB can become more on/off switch when it comes to throttle modulation. I still have my bored out TB with a JRSC and I'd skip it tbh.

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