Made a free tool for reading and tweaking LMU setups (Setup Ripple)

[jojojing]

Been building this for myself for a while to get my head around car setups in LMU and other titles, and it got to a point where I figured other people might find it useful too, so I've put it out there.


It's called Setup Ripple. The name's the idea behind it: every setup change ripples out and affects other things, and the tool tries to show you where.


What it does:

• Reads your actual .svm setup files and lays them out like the in-game setup screen (Basic, Powertrain, Wheels & Brakes, Suspension, Dampers, Chassis & Aero). It picks up the class from the file, so Hypercar, LMP2, LMP3 and GT3 all work, and the hybrid stuff (Virtual Energy, regen, motor maps) is in there.
• Explains what each setting actually does. Not just "more wing = more grip", but the knock-on effects and what to change to compensate. That's the part I mostly built it for.
• Diagnose mode, where you start from the problem ("won't rotate mid-corner", "unstable under braking") and it gives you the likely causes and the usual fixes.
• You can nudge any setting one click at a time and save it as a new file. Your original is never touched.
• Compare two setups, and a fuel calculator for stint planning.

It also covers ACC and AC Evo if you race the Kunos sims. It's one app with a launcher, but everything above works for LMU.


A few honest bits:

• It's free and open source. Code's on GitHub so you can read exactly what it does or build it yourself: https://github.com/jojojing-dev/setup-ripple
• Windows will flag it as unsigned (I'm just an independent dev, signing costs money) so you'll get a "More info > Run anyway" prompt. The source being public is there so you don't have to take my word that it's safe.
• There's an optional AI engineer chat, but it needs your own Claude Code, so ignore it if that's not your thing. Everything else works without it.
• It's a reference, not gospel. The stopwatch is always the final judge.

First release, so if you hit bugs or have ideas, drop them in the GitHub issues or reply here. I'd genuinely like to make it more useful based on what people actually want.


Cheers

 

[BluesAdam]

For Linux users

You can install using Bottles, works perfectly fine.

Apart from that, seems to be quite a useful tool. Will fiddle with it more. It will at least help me understand what each setup component does. Thanks for the app!

 

[Aysedasi]

Interesting. Setups have always been something of a 'black art' as far as I'm concerned. I use defaults with some minor braking tweaks most of the time. Perhaps it's time to experiment a little.....

 

[jojojing]

For Linux users

You can install using Bottles, works perfectly fine.

Apart from that, seems to be quite a useful tool. Will fiddle with it more. It will at least help me understand what each setup component does. Thanks for the app!

Cheers for clearing that up for Linux users!

 

[jojojing]

Interesting. Setups have always been something of a 'black art' as far as I'm concerned. I use defaults with some minor braking tweaks most of the time. Perhaps it's time to experiment a little.....

Exactly. I've been sim racing for over 4 years but only now do I feel I can make my own setups. Initially it was just for AC Evo as I found there was a lack of setups for the daily GT3 races but it slowly expanded to the 3 sims it has now

 

[edyecn]

I don't usually comment on forums, but you deserve my thanks. I've always believed that the fastest setup is the one that adapts to the driver—considering we all use different steering wheels, pedals, and hardware—so a fast setup created by a player with a triple-screen rig and a Fanatec DD might not be fast for someone using a Logitech G920, not to mention individual driving styles. I don't have much time for fine-tuning, so I usually stick to the basics, but I always feel like I'm missing something, especially regarding suspension settings. Your app allowed me to quickly get the car set up exactly how I like it and make it more competitive. I might not be grabbing pole position, but I can race at a competitive pace. Greetings from a fellow Brazilian.

 

[herve45]

Thanks

 

[jojojing]

I don't usually comment on forums, but you deserve my thanks. I've always believed that the fastest setup is the one that adapts to the driver—considering we all use different steering wheels, pedals, and hardware—so a fast setup created by a player with a triple-screen rig and a Fanatec DD might not be fast for someone using a Logitech G920, not to mention individual driving styles. I don't have much time for fine-tuning, so I usually stick to the basics, but I always feel like I'm missing something, especially regarding suspension settings. Your app allowed me to quickly get the car set up exactly how I like it and make it more competitive. I might not be grabbing pole position, but I can race at a competitive pace. Greetings from a fellow Brazilian.

So glad it's been as helpful to you as it was to me! Enjoy

 

[jojojing]

Thanks

I don't usually comment on forums, but you deserve my thanks. I've always believed that the fastest setup is the one that adapts to the driver—considering we all use different steering wheels, pedals, and hardware—so a fast setup created by a player with a triple-screen rig and a Fanatec DD might not be fast for someone using a Logitech G920, not to mention individual driving styles. I don't have much time for fine-tuning, so I usually stick to the basics, but I always feel like I'm missing something, especially regarding suspension settings. Your app allowed me to quickly get the car set up exactly how I like it and make it more competitive. I might not be grabbing pole position, but I can race at a competitive pace. Greetings from a fellow Brazilian.

Interesting. Setups have always been something of a 'black art' as far as I'm concerned. I use defaults with some minor braking tweaks most of the time. Perhaps it's time to experiment a little.....

For Linux users

You can install using Bottles, works perfectly fine.

Apart from that, seems to be quite a useful tool. Will fiddle with it more. It will at least help me understand what each setup component does. Thanks for the app!

Setup Ripple 2.0 is up.

Biggest change is a full visual redesign, the whole app has a cleaner, more tactile look now. On the LMU side specifically there are two new bits of content:

- Brake pressure guidance, explaining why the no-ABS classes (Hypercar, LMP2, LMP3) want lower pressure and roughly where to land, with the reasoning rather than just a number.
- Car architecture badges, so the Engineer tab tells you whether a Hypercar is LMDh, front-hybrid LMH, or non-hybrid LMH, and what that means for braking and energy.

Also fixed a thing someone reported where a newly saved setup did not show up until you reloaded the folder. It refreshes automatically now, and there is a Refresh button too.

Same download link as before, grab the latest release from GitHub. Cheers to everyone who has tried it and sent feedback.

 

[jojojing]

Setup Ripple 2.1 is out.

The main LMU fix: Compare used to show the same value on both sides for setups edited in the app, because the label text in the file wasn't updated. Saved files now carry a label like "D18 S-H (edited, 1 click down)", and Compare shows the change in clicks. Setups you saved with 2.0 are fixed too.

New for LMU:
- A request for when the fronts lock under braking, on cars without ABS. It takes about 5% off brake pressure, worked out for the car you're in.
- Parameters pages for differential power and coast.
- Hybrid requests now only show on hybrid Hypercars, and the front diff only on cars that have one.
- Anti-roll bars can go down to Detached and back up. Driver requests never detach a bar on their own.

The Engineer tab changed too. Everything you stage, from the arrow buttons or from driver requests, now goes into one Pending changes list with one Save. Requests are grouped into Entry, Mid-corner, Exit and High speed, and you can pick several at once. Bono also has a Stop button that puts your question back in the box so you can edit it.