Get Your RCF ECU Flashed!
09-22-16, 09:17 PM
#61
Mine was flashed right away. The 2ng gear hesitation I thought I had is not the sluggish throttle response that others were complaining about. In manual shift in 2nd gear I would feel what I thought was a slight hesitation between 1500-2200 rpm. Come to find out, that in the RCF this transmission has 100% lock up from 2nd - 8th gear and what I was feeling was they torque converter locking up. It's only i manual mode and only noticeable is you slowly accelerate in 2nd from 1500rpm why gradually increasing speed. The road needs to be smooth or it will be be disguised as any small bump in the road. After I was told this by the dealership (they also confirmed this with Lexus CA) I found this website that explained it.
#7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
#7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
09-22-16, 09:48 PM
#62
Pole Position
I don't think they will give you any definitive yes answer on the phone. On the phone you will probably only get some BS.
But in person you can be more assertive and will not take no for answer. If the service adviser won't do it, take it one notch higher to the GM. If the service adviser is smart, he will just go ahead and DO the TSB. I mean the dealership gets paid and the customer is happy. A WIN WIN FOR ALL!!
But in person you can be more assertive and will not take no for answer. If the service adviser won't do it, take it one notch higher to the GM. If the service adviser is smart, he will just go ahead and DO the TSB. I mean the dealership gets paid and the customer is happy. A WIN WIN FOR ALL!!
I'd have to go 100 miles to my dealer, i guess i'd be better off calling them first but when i tell them about this NOISE, what is it supposed to sound like. Then again, i'd be worried if i drove over there & they test drove it first & didn't hear this so-called Noise & then they'd say we don't see or hear any issues & Not do it! 
09-23-16, 05:05 AM
#63
Lexus Test Driver
Mine was flashed right away. The 2ng gear hesitation I thought I had is not the sluggish throttle response that others were complaining about. In manual shift in 2nd gear I would feel what I thought was a slight hesitation between 1500-2200 rpm. Come to find out, that in the RCF this transmission has 100% lock up from 2nd - 8th gear and what I was feeling was they torque converter locking up. It's only i manual mode and only noticeable is you slowly accelerate in 2nd from 1500rpm why gradually increasing speed. The road needs to be smooth or it will be be disguised as any small bump in the road. After I was told this by the dealership (they also confirmed this with Lexus CA) I found this website that explained it.
#7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
#7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
That said, I am not sure I understand this statement in the linked article:
"That makes the upshifts much quicker since the transmission’s throttle blipping control matches the engine speed to the gear."
Blipping on the upshifts??? Blipping and rev matching occurs on the downshift to replicate a heel toe so as not to unsettle a car in high performance driving during abrupt braking or slowing. I have never heard blipping the upshift. I suppose this is something akin to the double-clutch reference on the upshift used in the original Fast & Furious movie. Lol, yep I always blip the throttle and double clutch my upshifts to get the most speed out of my cars . . .
09-23-16, 01:01 PM
#64
Lead Lap
You're getting too technical for me. I'm just a simple manual shifting guy who has never had paddle-shifters before now. So does that mean I have to double tap my paddles to double clutch it while giving the throttle a love tap?
09-23-16, 03:10 PM
#65
Lexus Test Driver
Lol, no. I don't think that guy in that article has a clue what he is talking about, but doing what you said makes about as much sense as blipping throttle to match revs on an upshift.
Last edited by DougHII; 09-23-16 at 03:17 PM.
09-23-16, 04:31 PM
#66
09-23-16, 05:01 PM
#67
Lead Lap
09-23-16, 05:44 PM
#68
Lexus Test Driver
On the downshift, it is vital to keep car settled on the track, but nothing blips (person or fancy auto manuals) on the upshift. Lol, you blip on downshift to raise rpms up to match the rpms of the gear you down shift to.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
09-23-16, 06:07 PM
#69
Lead Lap
On the downshift, it is vital to keep car settled on the track, but nothing blips (person or fancy auto manuals) on the upshift. Lol, you blip on downshift to raise rpms up to match the rpms of the gear you down shift to.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
I was making a poor attempt at forum humor. I purposely downshift a lot though. I use engine braking. I only try to rev match if I'm worried about traction though. (Like you already said)
09-23-16, 06:14 PM
#70
Lexus Test Driver
09-23-16, 08:02 PM
#72
Pole Position
LOL😊😀😃😄
Whatever the RCF is doing on up shift and down shift on manual mode is music to my ears!!!
Whatever the RCF is doing on up shift and down shift on manual mode is music to my ears!!!
On the downshift, it is vital to keep car settled on the track, but nothing blips (person or fancy auto manuals) on the upshift. Lol, you blip on downshift to raise rpms up to match the rpms of the gear you down shift to.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
Dude in article is implying that you blip throttle to raise rpms to match revs on upshift, but the revs drop on the upshift. . . . Also, not sure how you blip throttle/raise rpms when you are upshiftung at red line. Kinda makes everything of a technical nature dude says in article suspect.
09-23-16, 08:29 PM
#73
Lead Lap
In any case, the engine and transmission are surely getting more wear from the hard acceleration I do almost every time I accelerate. But I'm sure the car will last until at least 100k miles, even after I boost it. Beyond that I don't care because I'll not likely be the owner anymore.
I've been engine braking since I started driving and I've not ever had anything fail because of it. I'm not saying that it can't happen. I'm saying that I've not ever had it happen.
Edit: I forgot to add that Lexus already has engine braking programmed into the RC F. Every time I use the brakes the transmission automatically downshifts and it doesn't rev match... at least in Sport+ mode, which is all that I use.
Last edited by Davew77; 09-27-16 at 07:28 PM.
09-27-16, 07:17 PM
#74
Driver School Candidate
Well I am disappointed to report back that my dealer wasn't able to reflash my ECU due to the TSB only being for US cars. Anyone in Canada found a way around this?
I was so looking forward to it. They will do it as soon as it is available.
I was so looking forward to it. They will do it as soon as it is available.
09-27-16, 08:07 PM
#75
You can get a ecu flash by rr racing, their tune has TSB including, only 400$