So I was having some difficulty nailing down a solid tune for most of my rides. I was setting everything right according to the telemetry, and based on all of my research from reading the tuning threads etc.
I started making some ‘radical adjustments’…tire pressure, spring rates, damping etc. - with mixed results.
The problem I was having with all of my cars was that in corners, the car was breaking loose, and sliding sideways…like as if there was way too much weight on the outer wheels.
I had not really been modifying the ARB’s…was leaving them around the middle/low setting more or less…as I figured too stiff a setting(s) would cause inside wheels to lift off the ground under high speed/heavy cornering applications.
I was way wrong.
On more than few vehicles now, I have moved the ARB’s setting to 75% of their respective values (I play with the ratio of front and back to balance transitional under/over - steer).
The results have been huge. I no longer get nearly the same amount of sideways drift, or sudden friction loss. The car feels more ‘level’, like as if all 4 tires are gripping and not just the outer two.
A good track with the kind of corners that were inducing these dreadful slides is Bernese Alps. I am no so much better able to corner at speed, and predict friction loss point.
Feels like I have added .25 of lateral G’s to my tunes now.
Has this been your collective experience as well, or am I alone here?
I know all the aspects of a tune play a vital role, but this one has provided me with the biggest “A-ha!” moment thus far in my tuning endeavors.
hi i have found that if im using soft spring set up im increasing the anti roll bars quite a lot, if the back end skates just lower the rear bar one click at a time till it doesnt skate or roll over on the tires
This has been my experience as well. But I prefer softer springs and higher roll bars than stiffer springs and lower arb. Ive seen some setups where both front and rear arb are in the teens and I’m scratching my head as to how they managed to lower them that much and not have the car waddle around the track. Higher springs yes but I was always told your tyres become less compliant to the track with the higher springs.
I’m usually happier with lower than default ARBs. Exceptions are the pre 80’s cars which have very low ARB values to begin with.
That said, I’ve witnessed Alfa Romeo Stradale lift the inside front wheel with very low ARB settings.
I use anywhere from 1/40 to 25/5. Lol. Had a few cars that were around the 10/12 range too.
Pretty much all over the place.
Yeah there is no rhyme or reason…guess it depends on the vehicle, but I am noticing for me - stiffer ARB’s tend to better suit my driving style.
I also go as soft as possible on the springs, and then tighten the ARB’s to compensate for any unwanted looseness.
The problem with running the stiffer arbs is you mayb be able to feel the limits better, but the line between at the limit and over the limit are much thinner with higher arb settings. The lower arb settings tend to be more forgiving High arb settings to me tend to induce more snap oversteer.