IS200t tune
Rookie
Joined: Jun 2019
Posts: 54
Likes: 13
From: NC
I keep looking at the JB4 i might pull the trigger on one in the fall, my OV tune is giving me trouble and Matt is MIA. I like the price and so far what i am seeing. Plus its nice to see a product that has some support behind it and that kind of adjustability with the tables.
Pit Crew
Joined: Oct 2013
Posts: 164
Likes: 5
From: Texas
Driver School Candidate
Joined: Sep 2019
Posts: 18
Likes: 0
From: Singapore
Pole Position
Joined: Apr 2018
Posts: 2,626
Likes: 459
From: GA
I think most of the original starters of this thread have given up on their cars already, tuners kept coming and going without any proper conclusions. So I'm saying perhaps there are too much limitations to our cars with perhaps too little money to earn. It is a business after all but that's just my opinion.
I think the BMS tune does a great job and I am using it in a heavier GS. It achieved my goal which was saving $10k versus a GS350 while producing 20-30 ft. lbs. more low end torque than the V6. My last car had a 575hp V8 and I honestly don't miss it much. This little 2.0 does a nice job.
Due to the limitations of both the turbo and tuning, I would focus on two things, once I am out of warranty, if I wanted a bit more power:
1. Water injection to make the most out of the existing level of boost.
2. Increase torque to the ground without touching the engine by installing a rear end differential gear with a higher ratio. A 10-15% increase should make a very noticeable difference without much of a penalty to fuel economy.
Due to the limitations of both the turbo and tuning, I would focus on two things, once I am out of warranty, if I wanted a bit more power:
1. Water injection to make the most out of the existing level of boost.
2. Increase torque to the ground without touching the engine by installing a rear end differential gear with a higher ratio. A 10-15% increase should make a very noticeable difference without much of a penalty to fuel economy.
Driver School Candidate
Joined: Sep 2019
Posts: 18
Likes: 0
From: Singapore
I think the BMS tune does a great job and I am using it in a heavier GS. It achieved my goal which was saving $10k versus a GS350 while producing 20-30 ft. lbs. more low end torque than the V6. My last car had a 575hp V8 and I honestly don't miss it much. This little 2.0 does a nice job.
Due to the limitations of both the turbo and tuning, I would focus on two things, once I am out of warranty, if I wanted a bit more power:
1. Water injection to make the most out of the existing level of boost.
2. Increase torque to the ground without touching the engine by installing a rear end differential gear with a higher ratio. A 10-15% increase should make a very noticeable difference without much of a penalty to fuel economy.
Due to the limitations of both the turbo and tuning, I would focus on two things, once I am out of warranty, if I wanted a bit more power:
1. Water injection to make the most out of the existing level of boost.
2. Increase torque to the ground without touching the engine by installing a rear end differential gear with a higher ratio. A 10-15% increase should make a very noticeable difference without much of a penalty to fuel economy.
And with regards to the 2 pointers mentioned, you're saying that those upgrades are readily available and compatible with our cars?
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Sounds like a plan but you do have a nice setup on your IS! Singapore is definitely not a place for car fanatics, considering an IS300 costs around USD$120,000. That's Porsche money man lol .
That's a very interesting feedback. I've never sat on anything with a V8 w/ 575hp. What car was that?
And with regards to the 2 pointers mentioned, you're saying that those upgrades are readily available and compatible with our cars?
That's a very interesting feedback. I've never sat on anything with a V8 w/ 575hp. What car was that?
And with regards to the 2 pointers mentioned, you're saying that those upgrades are readily available and compatible with our cars?
Water injection is readily available and has been used on this engine with good feedback, from what I have read on the forums here.
I found some info on the differential but haven't looked into it too far since I still have a few years of warranty left and haven't dedicated the time to research it yet.
Driver School Candidate
Joined: Sep 2019
Posts: 18
Likes: 0
From: Singapore
It was a Chrysler 300SRT with heads/cam/longtubes/3.92 rear end/built trans etc.. Was a ton of fun but I realised using a 13mpg car to drive to and from work wasnt the best use of the car. I used to take it to the track but lost interest as I got married, had kids etc. It was fun on the street but as I got older, wiser, built assets and a reputation, I found it wasnt worth the risk using the power on the street.
Water injection is readily available and has been used on this engine with good feedback, from what I have read on the forums here.
I found some info on the differential but haven't looked into it too far since I still have a few years of warranty left and haven't dedicated the time to research it yet.
Water injection is readily available and has been used on this engine with good feedback, from what I have read on the forums here.
I found some info on the differential but haven't looked into it too far since I still have a few years of warranty left and haven't dedicated the time to research it yet.
Yes and definitely good call on water injection!
Rookie
Joined: Jun 2019
Posts: 54
Likes: 13
From: NC
Hey so, I just wanted to post up an update, Matt at OV reached out to me, he sent me an updated revised tune file. 1.03 i just installed it today i will try it over the next couple of weeks and see if it sets any faults, so far its been doing good. 
Pole Position
Joined: Oct 2016
Posts: 306
Likes: 40
From: Ca
Did he say what he changed by any chance? Im curious because I've been contemplating flashing the 1.01 file again since I'm currently stock.
Rookie
Joined: Jun 2019
Posts: 54
Likes: 13
From: NC
Rookie
Joined: Jul 2019
Posts: 63
Likes: 23
From: GA
I just emailed him too and asked about the 1,03 file. He sent me a special 1,02 file that fixed my high idling, but i've had a couple of scary instances of limp mode happen to me if the ground is wet / it's raining outside. Getting on the highway and having your car go limp is terrifying lol
Driver School Candidate
Joined: Sep 2019
Posts: 18
Likes: 0
From: Singapore
Btw, could you control boost with Ov tune?
