New Product RR Racing ECU Tuning and Supercharger Development
02-13-18, 01:18 PM
#407
I'm not sure what you mean by signed up, but they referenced on Facebook that the car had at least 440 to 450whp in it, hence my question (not a demand by the way).
I won't be the guinea pig but I'll certainly posted about it ... I have a 1200whp GTR for the weekend, so it'd be nice to have the GS be a bit faster than average to close that large power gap.
I won't be the guinea pig but I'll certainly posted about it ... I have a 1200whp GTR for the weekend, so it'd be nice to have the GS be a bit faster than average to close that large power gap.
02-13-18, 02:10 PM
#408
Enjoy the GTR for the weekend - I'd love to get that bad boy out on the track. My IS is my daily driver/winter car, my fun car is a custom tuned Corvette making 500whp. I'm so tempted to do this to the IS, even though its 500 lbs heavier it would be quite the suburban sleeper sedan at 450whp. Closest thing we may see to an IS F in this generation, if not faster than that and lighter without the 8cyl. Probably bad for my license but fun to toss around regardless. I'd probably have to do some good suspension and braking upgrades at that power level for the twisties. For now I'm enjoying the snappiness the RR ECU tune added to my IS 300 - it made quite the difference and I really like the 7200 redline now, it loves to wind out and I'm very happy with it now in the Chicago snow and AWD config.
If RR squeezes 450whp out of this engine reliably, it will be quite the accomplishment. I was blown away with the 412 they dyno'd. It will be fun to watch.
02-13-18, 02:43 PM
#409
drives cars
They'll never notice, go for it! Your motor will run better, keep the same gas mileage and be a lot fast!
The only issue is...if you have a 2017+, you'll be without your car several days. The ECU will have to be over nighted to RR for a bench top tune, then they'll over night it back. Contact them directly for further details. Don't let this scare you, it's worth every penny and all your time.
If you get ambitious...like myself...the headers and exhaust turn the IS into an absolute beast! And it sounds amazing as well!
The only issue is...if you have a 2017+, you'll be without your car several days. The ECU will have to be over nighted to RR for a bench top tune, then they'll over night it back. Contact them directly for further details. Don't let this scare you, it's worth every penny and all your time.
If you get ambitious...like myself...the headers and exhaust turn the IS into an absolute beast! And it sounds amazing as well!
02-13-18, 07:31 PM
#410
I think your supposition of puttering around the parking lot is much more the reality. Frankly I doubt any cars say in the first 30K ever leave the oil change bay.
02-14-18, 06:49 AM
#411
drives cars
A Lexus service department doing a real road test for an oil change/overpriced inspection, serious enough to wring it out to detect a slight HP change from a tune? Priceless.
I think your supposition of puttering around the parking lot is much more the reality. Frankly I doubt any cars say in the first 30K ever leave the oil change bay.
02-14-18, 07:34 AM
#412
Pole Position
You would only notice the difference if they drive the car hard enough. The power difference is only above 4200 RPM's.
02-14-18, 09:12 AM
#413
drives cars
My IS 300 is transformed. Not only is it wildly better above 4200 now (and doesn't die off), which I expected, but it also seems to pull a bit harder climbing to that. The 7200 RPM redline is beauty to my ears. I am enjoying the increased power and I have not even gotten many miles towards redoing the "learning correction factor". This is a fun sedan to drive as a daily driver. I say skip the 350, get a 300, use the price difference on the RR tune and headers/exhaust to a much better effect.
02-14-18, 09:21 AM
#414
Instructor
You will have the tuning device with you so just switch it back to Stock before taking it to the dealer.
As of power I'm positive you will gain more power with the tuning from RR. So you won't be disappointed with the Tune.
End of the story...
As of power I'm positive you will gain more power with the tuning from RR. So you won't be disappointed with the Tune.
End of the story...
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momak (04-03-20)
02-19-18, 07:54 AM
#416
Pole Position
Hmm, why am I seeing feedback like this then? link
If it pulls better below that, or has improved throttle response, I am just saying... they might notice. I don't mean to be stubborn, but there does seem to be conflicting evidence around this - "completely transformed" is either hyperbolic, or something that they would most certainly notice.
If it pulls better below that, or has improved throttle response, I am just saying... they might notice. I don't mean to be stubborn, but there does seem to be conflicting evidence around this - "completely transformed" is either hyperbolic, or something that they would most certainly notice.
02-26-18, 05:51 PM
#417
02-27-18, 06:09 AM
#419
The transmission slip, which no one still really wants to talk about. Which is shady, but nonetheless if nobody wants to give a full explanation, so be it....However, when the slip does occur under the Tuned conditions, is it simply only losing horsepower under a hard pull? Or, when it sips under extreme acceleration, could it potentially cause catastrophic engine failure? Or any damage at all?? Anyone, feel free....Some of us are tuned out there and may have the slip.
02-27-18, 06:44 AM
#420
You should ask your questions first before you start name calling. I believe what you are calling transmission slip (from the video in the first post, correct?), is actually an inability of the transmission to shift quick enough. If it was straight trans slippage it would do so near peak torque during acceleration and not bounce off of the rev limiter. If the rev limiter was raised higher or the shift point set lower you wouldn't even hear it.
The dyno charts show no trans slippage through the acceleration runs. Of course there is additional load on the vehicle when it is in motion, compared to being stationary on the dyno, but I don't see any slippage.
The dyno charts show no trans slippage through the acceleration runs. Of course there is additional load on the vehicle when it is in motion, compared to being stationary on the dyno, but I don't see any slippage.
The transmission slip, which no one still really wants to talk about. Which is shady, but nonetheless if nobody wants to give a full explanation, so be it....However, when the slip does occur under the Tuned conditions, is it simply only losing horsepower under a hard pull? Or, when it sips under extreme acceleration, could it potentially cause catastrophic engine failure? Or any damage at all?? Anyone, feel free....Some of us are tuned out there and may have the slip.