IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models
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Best tune for Lexus IS

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Old Mar 9, 2023 | 12:45 AM
  #31  
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Originally Posted by wweerr123
i have contacted d3, but i'm not able to get the engine to rev above 6900k. So for anyone who is buying for increased rev limit. It might be a hit or miss.
That's odd. I typically don't rev that high, but can definitely do it in manual mode with traction control fully off. Hit me up on IG @j3isfs_la I'll send you a video.
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Old Mar 9, 2023 | 01:35 PM
  #32  
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Originally Posted by JCMno
That's odd. I typically don't rev that high, but can definitely do it in manual mode with traction control fully off. Hit me up on IG @j3isfs_la I'll send you a video.
I have no idea why it doesn't. The throttle response is definitely better, and in fact it is almost edgy. So the tune is definitely written into the cars computer. However, i have no luck in getting the engine to rev higher.
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Old Mar 9, 2023 | 09:24 PM
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Originally Posted by wweerr123
I have no idea why it doesn't. The throttle response is definitely better, and in fact it is almost edgy. So the tune is definitely written into the cars computer. However, i have no luck in getting the engine to rev higher.
In the custom tune screenshots you posted I noticed you selected the "stock tune" setting. I wonder if this is affecting the rev limit? I am in CA with 91 octane gas and have no issues. D3 told me it is fine to use the tune with 91 octane, so that's not a problem at all. I reved the car to 7200 today again and no issues at all.
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Old Mar 9, 2023 | 10:43 PM
  #34  
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I tried with the other 93 octane base tunes as well, but didn't get higher rev limit either.
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Old Mar 10, 2023 | 07:18 PM
  #35  
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Originally Posted by wweerr123
I tried with the other 93 octane base tunes as well, but didn't get higher rev limit either.
Sent you a DM. Are you fully deactivating traction control?
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Old Mar 11, 2023 | 03:51 AM
  #36  
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Default Did RR Racing stop supporting the ‘17 MY?

I have a ‘17 300awd and also use the RR tune, purchased once it was released. Works great IMO, so far so good with just over 100k clocked on the mileage. Just seen some posting RR didn’t support ‘17 & up so didn't know for sure.
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Old Mar 13, 2023 | 03:09 PM
  #37  
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Thanks JCMno for the help. I'm now able to get the engine to even 7400rpm as long as i have VSC fully disabled.
And its absolutely a gas guzzler

Last edited by wweerr123; Mar 13, 2023 at 03:14 PM.
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Old Mar 14, 2023 | 08:26 AM
  #38  
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Originally Posted by wweerr123
Thanks JCMno for the help. I'm now able to get the engine to even 7400rpm as long as i have VSC fully disabled.
And its absolutely a gas guzzler
I'm glad it worked. I am very happy with the tune.
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Old Jun 14, 2023 | 08:12 PM
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Hi, sorry to bump, do you have any dragy/0-60 numbers on your 350 post-tune?
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Old Sep 10, 2023 | 05:46 AM
  #40  
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Originally Posted by wweerr123
Thanks JCMno for the help. I'm now able to get the engine to even 7400rpm as long as i have VSC fully disabled.
And its absolutely a gas guzzler
what did you end up doing to allow for the rev limiter increase?
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Old Sep 10, 2023 | 01:43 PM
  #41  
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Originally Posted by wweerr123
Thanks JCMno for the help. I'm now able to get the engine to even 7400rpm as long as i have VSC fully disabled.
And its absolutely a gas guzzler
I know this is like 6 months later, but I would love to see a vide of you doing a pull with 7400RPM. I personally haven't seen a video out there with that high of a limit, only 7200. I bet it sounds pretty good.
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Old Jan 11, 2025 | 06:40 AM
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Originally Posted by JCMno
You have to fully deactivate traction control, set the car in sports mode, and shift manual.
you gotta do all that just to enjoy the 7200 rpm? From what I’ve seen, RR Racing lets it shift to 7200 rpm even in auto mode in any drive mode with traction control on or off. That’s a bummer
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