CharlieNeggo

I've been able to tune this RX 350 F sport using VF tuner software - changed the intake/exhaust cam timings, advanced ignition timings increased rev limiter, and enhanced throttle response when in sport+.

CharlieNeggo

I successfully ported my upper and lower intake manifolds and managed to operate it on an e40-e50 blend, which is a mix of half ethanol and half pump 93 gas, with the help of a tune. I’ll be sharing an updated video showcasing the 0-60 or 0-120s soon. Additionally, I’ve achieved a steady KCLV value of 30-31 kclv.

.

IntrinoX

iTrader: (1)

Impressive..

Rarebird1

It sounds amazing!

CharlieNeggo

Here's an updated one
I’m currently addressing the issue of the torque converter unlocking prematurely beyond 6500 rpm on 4th gear and higher. One thing I've noticed is that it’s halting at 6600-6800 rpm, while my data logging and other software indicate that it’s revving up to the expected 7000-7100 RPM. I’m actively working on resolving this issue.

Rarebird1

Love it Love it

TRDOffroad

Keep up the great work and nice mods. I have a regular RX-350 and while not the fastest nor most nimble you can definitely have some fun with it shifting it semi-manually in S-mode. Tbh I've even managed to get my 4RX sideways a few times too (via evasive maneuvers to avoid an imminent accident and several times by pushing it too hard) lol.

kenji211

Good job! Do you have an aftermarket exhaust or intake on it?

It seems to go through the gears nice and quick with the tune.

CharlieNeggo

For engine mods, I currently have ported upper and lower intake manifolds, cold air intake and modifications on the stock airbox part, cold brisk racing spark plugs, tuned on e50-e60 now, and muffler delete. I am currently working on getting a custom midpipe and custom axle back fabricated up with F stacked tips and getting a larger throttle body fitted on from the tundra.

CharlieNeggo

You can put a larger adjustable sway bar from Hardrace to get it to oversteer more instead of understeer/strut bar to help with handling if you like to toss the car around some corners here and there. Additionally, the issue of premature unlocking of the torque converter when shifting from 3rd to 4th gear has been fixed.

dibl

Question -- I know the 2GR-FKS VVT-iW system is designed to automatically adjust the intake valve closing to compensate for lower-octane fuel. How did you accommodate or overcome the function of that system?

CharlieNeggo

If you're talking about the Atkinson cycle that Toyota added to the FKS, then I haven’t made any modifications to its corresponding maps. The only maps I’ve changed with via the tuning software are those related to the variable cam timings for both intake and exhaust where I’ve made adjustments to these to ensure a consistent powerband across the RPM range.

dibl

Thanks. Yes, the "Atkinson" cycle, or VVT-iW, lowers the compression dynamically, to prevent knocking on lower-octane fuel, by delaying the close of the intake valves. So I guess that system is still working and accommodating the e40-e50 fuel blend, same as it does for 87 octane.

Thanks.

CharlieNeggo

You’re welcome. In general, the car has been performing excellently for the past month or so while running on an e50 blend. I’ve managed to advance the ignition timings and maintain a consistent KCLV value that is significantly higher than the levels than pump 87 and 93 octane. I’m planning to create another tune to fully utilize e85, given that the fuel injectors are still sufficiently robust for it. However, I’m uncertain about the long-term viability for the fuel pump, and I don’t intend to run this setup for extended periods. Once I’ve fine-tuned everything, I’ll send another video showcasing the acceleration and the fixed torque converter unlocking prematurely. One more thing, planning to finish up the tune for 93 octane as well so I have two maps that I can utilize when I would like to switch on the go.

mrdeezy

You have been doing some realy cool stuff with the RX here and on youtube. I appreciate you taking the time to share. Very cool