Sector 7 Tuning
Instructor
Joined: Mar 2018
Posts: 990
Likes: 352
From: California
I’ve had wildly inconsistent times and trap speed all in the same day. Car at times feels like it’s all over the place. I’ve had runs where I trap 4mph less but had the same exact times.
There's way too many factors with drag racing to measure any mods worth, it's worse than a dyno imo. Even if you nail the launch and shifting down right, the car or environment may be hot.
A roll from 30-100 or the Dragy's 60-130 run is better I think.
A roll from 30-100 or the Dragy's 60-130 run is better I think.
Pole Position
Joined: Feb 2015
Posts: 2,673
Likes: 408
From: Colorado
A local ISF owner near me just purchased the Sector 7 tune about a week ago......just reached out to him to see what his thoughts are on the tune and am planning to meet up with him to do a side by side comparison with my car (similar mods) rolling runs maybe 60-130 in Mexico hopefully soon
Moderator
Joined: Apr 2017
Posts: 3,069
Likes: 978
From: Indiana
I have determined that this Ecu is so sensitive that someone needs to run whatever tune and fuel that allows the most timing. I believe the wild inconsistencies come from Lexus’ conservative tuning strategies and timing tables. I too can gain .5 seconds in a night as it cools off.
I almost question if a well vented hood would add more consistency.
I almost question if a well vented hood would add more consistency.
Instructor
Joined: Mar 2018
Posts: 990
Likes: 352
From: California
A local ISF owner near me just purchased the Sector 7 tune about a week ago......just reached out to him to see what his thoughts are on the tune and am planning to meet up with him to do a side by side comparison with my car (similar mods) rolling runs maybe 60-130 in Mexico hopefully soon
Instructor
Joined: Mar 2018
Posts: 990
Likes: 352
From: California
I have determined that this Ecu is so sensitive that someone needs to run whatever tune and fuel that allows the most timing. I believe the wild inconsistencies come from Lexus’ conservative tuning strategies and timing tables. I too can gain .5 seconds in a night as it cools off.
I almost question if a well vented hood would add more consistency.
I almost question if a well vented hood would add more consistency.
Pole Position
Joined: Feb 2015
Posts: 2,673
Likes: 408
From: Colorado
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The car feels much more "alive" below 3k RPM. There is no more dip in torque that I felt with the stock tune around 2,800-3,400 RPM. The power is smooth and linear. Regarding the transmission, I'd say the shift speeds feel the same but it feels like the car still shifts fast at 7,200 RPM, so I think Sector 7 may have been successful in locking the torque converter after redline.
Agreed! The right way to do it would be to mount the GoPro to the car. However, I don't have one and I'm not sure if MileHiFcar has one either... Anybody want to ship us one for the run lol?
Another method to document is to use a suction mount phone holder and strap it to the sunroof.
Also, to be clearer, a few runs say 30-100 with stock tune, and after installing new tune and driving 50-100 miles to let it adjust, the same 30-100 runs to be done a few times would be the best way to document.
Even with my Dragy, rolls or dig starts, there are inconsistencies of up to a second depending on conditions, elevation, temps etc, so a few runs of each would be best rather than just one video of a 30-100 run with a tune.
Also, to be clearer, a few runs say 30-100 with stock tune, and after installing new tune and driving 50-100 miles to let it adjust, the same 30-100 runs to be done a few times would be the best way to document.
Even with my Dragy, rolls or dig starts, there are inconsistencies of up to a second depending on conditions, elevation, temps etc, so a few runs of each would be best rather than just one video of a 30-100 run with a tune.
Pole Position
Joined: Feb 2015
Posts: 2,673
Likes: 408
From: Colorado
The member MilHiFcar is referring to is me lol. I uploaded the tune last night and went for a drive. I have to say I really like the tune so far. Below 3k RPM, I was able to get the KCLV up to 21.6 and I think I have more room to go, just need colder intake temps. We've had some crazy hot days lately, so going at night is really the only option. Above 3k RPM, the ECU is still learning and I'm only at 15.6 KCLV. It was raining hard last night, so consistent WOT runs up to 7,200 RPM were not super safe lol.
The car feels much more "alive" below 3k RPM. There is no more dip in torque that I felt with the stock tune around 2,800-3,400 RPM. The power is smooth and linear. Regarding the transmission, I'd say the shift speeds feel the same but it feels like the car still shifts fast at 7,200 RPM, so I think Sector 7 may have been successful in locking the torque converter after redline.
The car feels much more "alive" below 3k RPM. There is no more dip in torque that I felt with the stock tune around 2,800-3,400 RPM. The power is smooth and linear. Regarding the transmission, I'd say the shift speeds feel the same but it feels like the car still shifts fast at 7,200 RPM, so I think Sector 7 may have been successful in locking the torque converter after redline.
I'll be in contact with you when our schedules will allow
Pole Position
Joined: Feb 2015
Posts: 2,673
Likes: 408
From: Colorado
Unless we try and match up passenger weights I agree a GoPro would be the best way but I don't have one either
So, I've had the weekend to drive the ISF with the Sector7 tune and do some WOT runs. This weekend has been HOT and I have to say, the Sector7 tune is performing waaaaaaaaaaay better than even the stock tune. One thing I was worried about, that my ISF fellow owners ran into here at high elevation in CO with the RR racing tune, is that the KCLV would suffer. Well, what's been amazing is that the KCLV has been steadily climbing, even with intake temps well over 100 degrees Faranheit.
This would not even happen on the stock tune! I know this, because summer after summer I would watch the KCLV drop when the IATs climbed over 100 degrees. For reference, I do mix about 30% or so of E85 and I have been since I've owned the car (since 2017). Moreover, the car feels much more urgent and smooth, with no lag in power. So currently, the KCLV below 3k is at 22.8 and over 3k I'm at 18.9, and again, this is running the car in 100 degree weather lol. I can only imagine what it'll be like once fall hits and we are down in the 50's and 60's during the day.
So, suffice it to say, I'm very impressed with this tune so far!
This would not even happen on the stock tune! I know this, because summer after summer I would watch the KCLV drop when the IATs climbed over 100 degrees. For reference, I do mix about 30% or so of E85 and I have been since I've owned the car (since 2017). Moreover, the car feels much more urgent and smooth, with no lag in power. So currently, the KCLV below 3k is at 22.8 and over 3k I'm at 18.9, and again, this is running the car in 100 degree weather lol. I can only imagine what it'll be like once fall hits and we are down in the 50's and 60's during the day.
So, suffice it to say, I'm very impressed with this tune so far!