Well as of now,

1) TTI posted their gains and has done testing for a couple months now . OV still hasn't released any progress or gain numbers.

2) TTI has excellent customer service! Tony has been super helpful and kept in touch to answer any questions that i may have. I messaged Matt at OV and didn't get much information.

We just have to wait and see what the results are.

 

Does TTI have any progress blog? Their website seems kind of rudimentary. Assuming I had the right website.

Do they change anything in the TCU or just FI-ECU?

 

I actually followed them on instagram where they posted progress pictures as well as videos.

https://www.instagram.com/tti_motorsport/

They are currently working on the TCU and a Stage 2 tune which should be available soon.

 

Hello Guys

My name is Tony Chang TTI motorsport engineer of R&D ,I'm so happy to meet everyone here to discuss about Lexus,my english very poor if you do not understand Please forgive us for any inconvenience caused.

TTI Motorsport are proud to announce that after months (18/Nov/2016 ~ 28/Feb/2017) of testing, our Stage 1 ECU upgrade for Lexus 200T is now available to purchase(via OBD port). Our ECU upgrade for the 8AR-FTS / 2.0T Turbo engine, provided an excellent in horse power gain 28whp and 39NM torque on wheels. It is optimized for various fuel grades found around the world. It is now available in Greater China area. For North America customers, please message us for more information.

Regarding the downpipe please feel free to contact us

email: ttisuperfast@gmail.com

 

Welcome Tony!

 

Hello everyone.

 

@TTITony

Thanks for your post here. I am looking at your website now...I'm very interested in your IS200t tunes.

 

email sent...

 

I'm so sorry about website it because all Chinese word ,I'll update that shortly.

 

Anyone near Gilbert Arizona with a 200t?

 

Welcome Tony we are happy finally one of the pioneers at 200t tuning project have joined the forum


@Sheddy, thanks for making this happen your a Rock star bro

 

That's information for NX200T user as follows,I thing IS200T owner would like to know too.

About the Toyota system, we use the dedicated tools via OBD port read/write and programming software to do the basic upgrade.

In fact, we have implemented 102 days with daily driving tests and dyno tests to be the reason for the balance of durability and fuel consumption.Try to reference our Facebook NX200T test info click here
About us to modify the ECU detail as follows

Basic program
1. Boost pressure request value
2. Mass air flow static value
3.Maximum filling( 5 modes)
4.Torque limitation
5.Boost limitation via intake tempture Knock level
6.Injection control (IAT/MAF/Coolant)
7.Lambda control (open loop/close loop)
8.Ignition timing(IAT/Knock control)
9.VVT-i optimization(full boost and high RPM)
10.Throttle response
For upgrade ECU that above basic settings are necessary, we do two type of fuel octane(RON95 and 98)
We are ready to road test for 8AR-FTS in US next week.
Please feel free to contact us ttisuperfast@gmail.com

I hope you are satisfied with our reply

 

I am excited to see the results of the stage 2 with TCU tuning

 

TTI looking much better than OV in terms of what they've shown. Just my own observations.

I also really like the dedication to durability and fuel economy testing.

 

Totally agree with you!