How do you guys tune?

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1

I need help with my circuit tunes. I’m real bad at tuning for anything but drifting but want to go in a straight line more XD! Please post TIPS not TUNES. Just want a base to build off from. Thanks my dudes!

2

A good base to go from is the ForzaTune Dry tune. I personally go from there and tweak it until I like it. But it seems that some values are off because they are different from FM6, but the dev’s said that they will post an update before the end of this year to fix that.

3

Thank you leospeedleo! These past couple of days I have grinding on how to make a car that can handle well from 70-190 range and I have finished with that. Now I just need to Incorporate top speed into the equation because it tops out at approximately 190 and I can’t push it further with out causing too much wheel slip or pushit over the S1 class I want to stay in. Currently my fastest time on Goliath in my Lexus RC is 11:28 and my Mazda RX-7 runs a 11:25. My RC tune relies much more on turns than my RX-7. not too sure if those are good times but I am mainly just pleased with the progress i’ve made in teaching myself.

4

I usually go to the highway or some other sort of straight stretch of road to tune the gearing. First get up to top speed to tune the final drive ratio. Then pull away from a standstill and tune first gear so you don’t have a huge amount of wheel spin but you don’t bog it down either (s class usually has first gear at 100-120 kph on my tunes). Once you have final drive + top gear and first gear you can make a nice smooth curve with the rest of the gears.

Then I go to a circuit and start a rivals challenge. I make a baseline with the tuning calculator and tweak from there.

If you use the metric system you can use my tuning calculator. It’s an edit of the one Clark GriswoId made. I also added a couple of features. If you like them but you use imperial you could probably put them in your copy of Clark GriswoId’s calculator as well and share it.

Here is a link to the original tuning calculator using the imperial system.
https://goo.gl/W5MtB1

This topic is also very useful as xCaesars Wrathx has put together a huge amount of information on tuning and builds. You should definitely give his guide a read.
http://forums.forza.net/turn10_postst71564_CW-s-Tuning-Guide--Calculators--NOW-DOWNLOADABLE-in-word--pdf---new-files-added-8-10-16.aspx

5

I start with tire pressures at 28, and adjust based on telemetry after they are up to temperature so the hot pressures are around 32 psi.

For gearing I just adjust the final drive to get me to the top of my highest gear at the end of the longest straight on the circuit.

For alignment I start with -1.0 camber front and rear and adjust based on telemetry so the insides are about 10 degrees hotter than outsides. For toe I try not to touch it unless I’m having trouble hooking up on corner exit, then I might do -0.2 in the rear. For caster I usually do 5.5, and increase higher depending on the power of the car.

ARBs I set to 20-30 and adjust based on how flat the car corners, and using the suspension telemetry. I prefer stiff cars with slight understeer on entry and midcorner and normal to oversteer on exit.

For springs I set them based on the weight and balance of the car, and lower the ride height as much as I can get away with for the track.

Damping I start with 10 rebound and 5 bump and then adjust for weight balance, then fine tune based on car behavior and suspension telemetry.

Aero I max out for cornering, I’m not tuning a drag racer and spend very little time at top speed if at all.

Brakes I balance toward the front, because if any 2 tires are going to lock first I want them to be the fronts. I lower the pressure because I have limited fine control of the left trigger compared to right trigger throttle control.

For the differential, usually 60-80 accel and 0-10 decel.

Only adjust one thing, then test it. If you make multiple adjustments, you’ll never figure out what you did right or wrong. Moreover, each area of performance interacts with all other areas, and it is necessary to view the effect of a given change on total performance.

All of this is secondary to tuning the head of the driver. You will gain more lap time from technique than tuning will gain you, and no amount of tuning will overcome bad technique. Tuning is a game of tenth of a second of lap time here and there, if your driving isn’t consistent, your cars behavior won’t be either.

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6

This.

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