The Ultimate FA20 ITB thread. - Page 15 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

chaoskaze · 09-01-2019, 07:56 PM

No news?.

/cast rresurrection

Lantanafrs2 · 09-03-2019, 03:03 PM

Quote:

Originally Posted by chaoskaze

No news?.

/cast rresurrection

Dont hold your breath. Theres a set of them for sale in classifieds though if you want to try em.

hifiguy99 · 10-28-2019, 04:28 PM

Quote:

Originally Posted by Lantanafrs2

Dont hold your breath. Theres a set of them for sale in classifieds though if you want to try em.

Where do you see ITBs for sale? Can't find them under classifieds on here.

Lantanafrs2 · 10-28-2019, 05:04 PM

Quote:

Originally Posted by hifiguy99

Where do you see ITBs for sale? Can't find them under classifieds on here.

That was over a month ago

Captain Snooze · 10-29-2019, 05:54 PM

Quote:

Originally Posted by CSG Mike

and this is being done organically.

I would like to see the organic certification.

ROFL it's Waffle · 02-05-2020, 08:16 AM

I want to learn everything I can about ITB's. Yesterday I learned that the OEM throttle body is used to operate the 4 ITB's through a mechanical linkage. I understand they did this probably to simplify the drive-by-wire environment.

My question: Is the OEM throttle body actuator robust enough to handle the increased load of 4 spring-biased valves and the linkage attached to them?

ROFL it's Waffle · 02-05-2020, 09:34 AM

Quote:

Originally Posted by Quasimofo

Have you driven a current model STi? It does not have what I call "snappy throttle response." With throttles no longer being cable controlled, are you really getting the throttle opening you think you are? The base BRZ plays games with throttle opening to try to game that torque hole. But thats besides the point.

I'm also well aware what lighter flywheels do. I've run 9 and 11 pound units in other cars.
I don't like turbos. I prefer N/A. It's a free country.

At the end of all this, I just hope there's another useful product to spend money on.

I'm a little surprised at some of the seasoned responses to your previous posts. You're relatively new to the forum, so welcome. While I agree that turbos can lag, BIG turbos can lag, LITTLE turbos dramatically reduce lag (come online earlier, just lack in the top-end).

My last car I just felt the turbo was very finicky, despite Mike's e-tune from Innovative Tuning. With my lack of experience in programming/electronic engine management (drive-by-wire), I'll have to side with you that N/A is my preferred way to go, just to simplify an already complex modern-day engine topic.

weederr33 · 10-06-2020, 01:27 AM

Bumping this because I was thinking about ITBs and all the things. Any news out there? I know Delicious was working on something a while back.

PulsarBeeerz · 10-06-2020, 01:30 AM

Quote:

Originally Posted by weederr33

Bumping this because I was thinking about ITBs and all the things. Any news out there? I know Delicious was working on something a while back.

A couple guys on a FB group have delivered their result. Long story short the ITBs are too small for the engine. Great low end and midrange and losses of 15-20whp on the top end.

weederr33 · 10-06-2020, 01:35 AM

Quote:

Originally Posted by PulsarBeeerz

A couple guys on a FB group have delivered their result. Long story short the ITBs are too small for the engine. Great low end and midrange and losses of 15-20whp on the top end.

Ooof. I was expecting the opposite. Nothing down low and it all up top

Turdinator · 10-06-2020, 01:57 AM

Quote:

Originally Posted by PulsarBeeerz

A couple guys on a FB group have delivered their result. Long story short the ITBs are too small for the engine. Great low end and midrange and losses of 15-20whp on the top end.

Ouch! Can you share what facebook groups? I'd still be interested in seeing the torque curves.

Snake · 10-06-2020, 03:45 AM

I'm no expert, but isn't it then just a matter of tuning the length and width of the runners to move the torque around?

Sent from my CPH1979 using Tapatalk

beltax90 · 10-06-2020, 03:52 AM

PulsarBeeerz · 10-06-2020, 12:26 PM

Quote:

Originally Posted by Turdinator

Ouch! Can you share what facebook groups? I'd still be interested in seeing the torque curves.

I stand corrected. IIRC the one who lost power may of had cams. Here is an otherwise stock long block with a full exhaust on 93 using the supplied IM.

You'll have to do some sifting but the info is there.

https://www.facebook.com/groups/NaturallyAspirated86

10-06-2020, 01:27 AM	#204
weederr33 Airborne at your service Join Date: Sep 2014 Drives: '17 BRZ Series.Yellow Location: El Paso, Texas Posts: 6,420 Thanks: 4,579 Thanked 5,706 Times in 2,992 Posts Mentioned: 33 Post(s) Tagged: 2 Thread(s)	Bumping this because I was thinking about ITBs and all the things. Any news out there? I know Delicious was working on something a while back. __________________ Series.Yellowbird - http://www.ft86club.com/forums/showthread.php?t=122135 MS, CSCS, TSAC-F, CPT

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09-01-2019, 07:56 PM	#197
chaoskaze The Fail Boat Join Date: Aug 2011 Drives: CWP S.B. Location: LasVegas Posts: 3,028 Thanks: 4,720 Thanked 1,294 Times in 874 Posts Mentioned: 19 Post(s) Tagged: 0 Thread(s)	No news?. /cast rresurrection

02-05-2020, 08:16 AM	#202
ROFL it's Waffle The guy w/o an FRS or BRZ Join Date: Sep 2019 Drives: '23 GR86 Premium 6MT Halo White Location: Planet Erf Posts: 446 Thanks: 276 Thanked 399 Times in 215 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	I want to learn everything I can about ITB's. Yesterday I learned that the OEM throttle body is used to operate the 4 ITB's through a mechanical linkage. I understand they did this probably to simplify the drive-by-wire environment. My question: Is the OEM throttle body actuator robust enough to handle the increased load of 4 spring-biased valves and the linkage attached to them?

10-06-2020, 03:45 AM	#208
Snake Senior Member Join Date: Dec 2012 Drives: ADM Toyota 86 GT Location: Australia Posts: 117 Thanks: 32 Thanked 63 Times in 37 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'm no expert, but isn't it then just a matter of tuning the length and width of the runners to move the torque around? Sent from my CPH1979 using Tapatalk

10-06-2020, 03:52 AM	#209
beltax90 Senior Member Join Date: Jan 2019 Drives: 2010 corolla Location: california Posts: 1,410 Thanks: 1,578 Thanked 1,802 Times in 782 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)

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