Anyone have the RR Racing Tune?
Thread Starter
Intermediate
Joined: May 2010
Posts: 376
Likes: 97
From: GA
I've only tried it a few times to check the rev limit increase and haven't noticed any issues with the trans... although the transmission does tend to hunt for gears regardless depending on throttle position which is annoying but that happened even before the tune.
Instructor
Joined: Jul 2014
Posts: 974
Likes: 79
From: CA
I haven’t had any problems with gear hunting on my is350 ‘14. Let us know if you find anymore issues. Thanks
Intermediate
Joined: Aug 2017
Posts: 308
Likes: 51
From: KY
I’ve had mine at the dealer a few times now, one instance required for them to hook it up to tech stream for diagnostic check, they never said anything about it, just simply fixed the loose hose under the hood and cleared my codes. This is assuming they even noticed the tune in the first place. If you’re worried though and have the ability to reflash to stock, what would it hurt to do so? I, on the other hand, don’t have this ability on my ‘17.
Thread Starter
Intermediate
Joined: May 2010
Posts: 376
Likes: 97
From: GA
I’ve had mine at the dealer a few times now, one instance required for them to hook it up to tech stream for diagnostic check, they never said anything about it, just simply fixed the loose hose under the hood and cleared my codes. This is assuming they even noticed the tune in the first place. If you’re worried though and have the ability to reflash to stock, what would it hurt to do so? I, on the other hand, don’t have this ability on my ‘17.
Driver School Candidate
Joined: Mar 2018
Posts: 23
Likes: 7
From: IL
Don't you mean that the other way? 7200 in auto mode, I'd assume it you know, automatically shifts. I'd presume it's manual mode where you have to keep your eye on the tach to avoid bouncing off the rev limiter.
Advanced
Joined: Sep 2019
Posts: 601
Likes: 290
From: Texas - DFW
I think that is what he mean't. I have the RR racing tune and mine shifts at 7200 in auto.
To clarify, in auto it will shift AT 7200 so if you feel it "hesitate" to shift in auto, that's you bouncing off Redline for a split second before car shifts. In manual mode, will car bang off redline only when TC is off.
Racer
Joined: Aug 2018
Posts: 1,936
Likes: 825
Ditto this. When its hot out the converter will unlock at 6800, itll hesitate, then relock, then bounce off at 7200 for like a second, then shift to second in auto mode for me. All that is supposedly fixed with a transmission tune that RR is looking into.
Driver School Candidate
Joined: Dec 2019
Posts: 13
Likes: 0
From: usa
Worth it IMO as well. I have an IS350. I have the tune with intake and full exhaust. Good parts and equipment and tunes are going to cost a bit of money. I suggest that if that bothers you then don't modify a Lexus or get a car that's not a premium vehicle. Not trying to be rude just stating that Lexus mods will be expensive all the way around unless you buy cheap junk them you get what you pay for.
Also these tuners and tunes are locked to your ECU and requires a specific file from RR Racing to configure it to a new vehicle at a price.
Also these tuners and tunes are locked to your ECU and requires a specific file from RR Racing to configure it to a new vehicle at a price.
