u/CommunistAdvisor1975

(C) Copyrighted 2011 Sprocket RBR Renault F1 Works

Red Bull Racing have brought another major upgrade packs to the RB8, many of which are still edging the FIA and FOMs seriously over legality.

• The most noticeble is the addition of large rear radiator heat dump port caused by the increasing heat demand of the Renault RS15 Power Unit and assistive ERS.
• Addition of new brake ducts with directional wing ramp instead of natural aspirated cooling of RB7.
• Exhaust Blown Diffusers (EBD) is wildly controversial and heavily contested, but remain legal for the time being. In the RB7 setup, likely the EBD shares it output port with the heat dump. But with RB8, they are seperated.
• Unlike RB7, RB8 have added a slight nose droop and a high rake configuration, pushing the rear elevation higher than the front. Not a agressive rake, but better compared to the no rake RB7.

Major changes also came with the rear wing system (refer pic 4)

• The beam wing have been significantly shorten but remain prominent. It have been lowered to take advantage of the EBD coming from below and the heat dump port above to reenergize the airflow.
• The addition of the symmetrical central air splitter is deem to reenergize the exhaust heatflow coming from the Coanda lower rear ramp to maximize the beamwing effectiveness.

The lower front ramp have less major changes (Refer pic 5)

• A expansion lip added to reduce air turbolence and aero stability.
• Incision on the sidepod belly to direct more air toward the side undercuts.
• Smaller inner air bleed ports that direct those airflow toward the rear diffusers, manifesting a pseudo-Venturi tunnel that although technically not breaking the rules, but is extremely contested.

Also check out our RB8 Suzuka Edition for JP GP! This time RBR decided to add black paints to sensitive floor aerodynamic works to protect intellectual properties.

I have long moved to a ThinkPad.

The rubber feets are gone. I check the FRU and it seems like they only comes in the whole bottom cover.

Failed bezels. Repaired, but seems like its gonna give out some time soon.

It was not a great laptop when it was released, not a bad one neither. It was hot, the battery life is not great, the panel is weak and ghost images on it were quite common.

The screws are horrendously made. I stripped few of them on my way to the inside. The CPU screws are similarly bad. There are 3 of 'em. I stripped one trying to open it. The metal used to make them screws are so horrendously made that they gives up. I have to bend the whole assembly open to access my CPU.

I screwed it back in with one single screw to keep the entire heatsink on.

It ran fine. No heat problems.

I installed Linux on it. It runs like a dream.

5 years and 7 months later. It still survives. Haven't touched another ThinkBook since.

Refer to the OP: https://www.reddit.com/r/unixporn/comments/1t3yahn/kde_woodland_dusk_v2_few_tweaks_from_yesterdays/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

I have added some new elements to this so here it is:

OS: CachyOS + KDE
Name: Woodland Dusk v2
Wallpaper: Forest Adventure by Hua Ming (花铭)
Plasma Style: Based on Breeze, Klassy and Panel Colourizer (KDE Store) for the window borders.
Icon Theme: YAMIS by dirn (KDE Store)
Media Player: PlasMusic Player
Terminal: Kitty
Fonts: JetBrains Mono NerdFont, Maple Mono
Other: Dotfiles

Too much things to figure out for a single night, but for the first time I actually pulled this off. Set up the color with the color files in the dotfiles. Install kitty, make a kitty directory, rename the Woodland config file to kitty.conf. Cannot figure out how to pull off the transparent Dolphin. Replace Konsole with Kitty. Install YAMIS through KDE Store.

I mean thats all of my struggle. Perhaps I cant remember all of them, but here are most of em.

Agressive aerodynamic cuts have been made, making the RB7 one of the most significant aerodynamic upgrade package ever to came to a RB car.

• RB have significantly trimmed down the rear spoiler height, but widen them by a great margin. The wings are slimmed down for reduced downforce load, but indicate still very challenging profile for DRS system.
• Monkeywing below the DRS is lowered, but angle of attack stays the same.
• Significant rear engine box profile reduction, thinner and more sleek.
• Rear intake box central splitter is a major change. It leads from the highest point of the air box all the way to the rear spoilers.
• The sidepods are aggressively shrunken, reaching 0.75:1 ratio height to width compared to 1.8:1. The massive reduction are linked to weak sidepods performance linked to almost-square version of the RB6 causing massive turbolence, vortex, pressure loss, and weak ability of the floor to direct airflow into the lower rear diffusers.
• The bargeboards have added a very agressive fins system to break vortex coming from the wheels and enhance the directing of Y250 pressure coming from the central mid-body diffusers below the belly.
• Ride height is reduced so rear double diffuser is officially in action, as well as pseudo-Venturi tunnels for ground-effect that are dangerously close to violating the FIA Regulations.

Renault have also rumoured to bring one of the biggest changes to their Power Unit (PU) in partnership with RBPT. The new engine block is now Renault V10 2.97L twin-turbocharged ultra-compress with a staggering 23:1 compression ratio, flagging the FOMs. KERS changes are very vague as we cannot gather credible news, but it is generally not as agressive a change compared to the PU. The PU still have problems, like insufficient fuel load causing undercut with pit strategies, but is improved compared to RB6.

Renault PU is rumoured to be able to push to an incredible 20092 RPM, achieve a staggering 1350hp/ton, but reduced to 1140hp/ton for reliability.

At least with this car here, we can even see RB installed pitot tube (used for plane speed reading) so it can read the airspeed of RB7.

With the new regulation coming, Sprocket RBR RBPT F1 Team have tested the new tire diameter configuration.

The original config is 660mm C3 compound. Tested config is 620mm C3 compound. Both made by GEESSS.

660mm config (F1 2Dc21seb RB5e3) result in a more slidy, moderate oversteer consensus much like drifting, but more predictable, better low speed sustenance and overall better handling. Curbs handling is more forgiving thanks to higher ground clearance and bigger tire overall.

620mm config (F1 2Dc21seb2 RB5e3) is, suprising, to start with. The vehicle is now touch understeer, incredible cornering stability, lighter and better acceleration. However, curb handling is bad due to smaller profile and worse clearance. Low speed sustenance is poor. With test case being donuts and dual chicane exiting, the lower profile tire perform considerably worse, losing more than 80km/h compared to only 20km/h of the larger profile tire. Donuts are challenging, because when the tires are heated enough, it offered too much stability and understeer that the car will just stick to the ground and became very hard to perform rapid maneuovers.

Granted, smaller tyre profile for seb2 config demands considerably more retune to engine power in contrast to that of original seb config. Torque output is moderately pushed so engine headroom became less available to sustain high revving and low speed conditions, something the seb config will takes just fine.

Rock solid cornering stability is also a liability instead of a advantage. With donut test condition, seb2 config are more prone to overspins or locks, so spin recovery is much more difficult.

Low speed sustenance is horrendous. Taildragging drift-like behaviour on seb config is much more controllable and recoverable, and also sustain speed with minimal loss. However, seb2 config can only maintain speed of ~92km/h with taildragging, whereas ~186km/h of seb. Recovery of seb is much cleaner, overrevving engine to force escape spinning is easier to perform.

- 16GB DDR3 1600MHz

- 250GB SAMSUNG 850 EVO mSATA Drive (Linux), 240GB SATA 2.5in SSD Drive (W11), 512GB NVME SSD Drive through ExpressCard, 1TB HDD Drive through UltraBay

- Intel AX210HMW Wifi 6E

- Synapstic UltraNav (Replaced) with new touchpad sticker

- CMOS battery (Replaced)

- T420 classic keyboard mod

- 14in B140HAN01.3 Panel (300 nits, 80% sRGB) with Chipboard LVDS-to-eDP Shiyingku (off Alibaba)

Pretty much the usual T430 upgrade. This is intended as a enthusiast build, money is not my problem (until it is).

The computer came with 3630QM+NVS 5200M, quite powerful and not really a problem for everyday casual use. Heat from the mSATA is quite something, but negligible.

Panel black rendering is very aggressive, force to push gamma. Being accustomed to the 500 nits P1g6 make adapting this change a real headache.

Heat performance is ok, heat throttle is not a thing (but sure prepared for the jet engine).

Also I see the SIM card slot in the battery, but some manual says I must have a accompany WWAN card to handle it. W11 strangely seems to recognize it, and allow the computer to be used as a Hotspot (haven't test it yet). Linux is fine, extremely fine. Fast, snappy, beautiful, elegant, and all the software that I miss on Windows does not exist (hence the dualboot). But W11 is also fast (not as fast ofc), responsive and dependable. LUKS takes a good while to finish, and Linux boot time is quite something.

Not having the keyboard backlight is quite a pain. ThinkLight is good but not enough.

Wifi is fast, but webpages still takes a good amount of time to load. 4K playback is good and consistent. GeoFS is fine.

Bluetooth is fine. No problem here.

I thought the Dock can be used without power. Well, only the power button works, everything else doesn't, including USBs.

I thought of undervolting the CPU, but scared to do so.

Didn't do the Delta fan mod, Toshiba is fine. But why the intake holes are so minutely small?

Didn't use any PTM Honeywell stuff. Only used Coolermaster Cryofuze, not much problem. I just dont think the phase change pads are worth it (but I will try).

Cant seems to find the Slim Tip to barrel plug anywhere. I have a 170w brick but cant use it for this.