Quote:
Originally Posted by Gnarly Old Dog
I believe the difference is about 1mm.
How it felt on the track was that the HRC car felt less likely to dump itself over on the outer wheel at high speed on the limit - the EPR raceway corner best illustrated this - with the HRC block, the car would drive into the corner and you could power through but with the LRC block, you had to be more cautious else it would dump the rear end part way through the corner when it tried to break away.
Not on every lap but enough to make you feel a little less committed as you approached it for the next lap.
I believe the LRC blocks will grip harder initially but the HRC block tends to make the car more consistent - possibly with a little less grip overall.
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A higher roll center mount will make the rear end roll less, add more pressure to the wheel instead of the suspension absorbing all force. On a high grip surface that means initial response is very good, and the grip could feel better until the point where it will snap away a bit easier than a low roll center that has a bit more give, and should be smoother.
When it's only talk of 1mm, it's less than what we modded on the CR. When you wrote high and low, I was thinking something like on the XXX-S touring car, where it was 3-4mm difference between the high and low; VEEEERY noticeable that one...
Regarding that last point, I don't think the LRC will grip harder, but the rear end should feel a bit softer, and roll deeper.
But then again, you're the one who's actually tested this stuff
