The BMR bars are installed and ready to go.. I was working on calculating the % increase of the rear bar over the stock GXP bar and came up with some interesting numbers.
GT rear bar diameter is 18mm
GXP rear bar diameter is 20mm
Given that the two bars are both solid and of the same design the GXP rear bar would be 52% stiffer than the GT bar.
That along with BMR's published increases of their bar over the GT rear bar I got the following
hole 1 - 26% stiffer than GXP rear bar
hole 2 - 74% stiffer than GXP rear bar
hole 3 - 154% stiffer than GXP rear bar
Given the front bars are the same for both cars at
hole 1 - 87% stiffer
hole 2 - 137% stiffer
Then the fact that I would like decreased body roll with just a little more rear bar bias then my current stock setup leads me to think that full stiff on both bars might be the best bet F137% / R154% (17% stiffer bias to the rear than stock GXP). This would seem to be the only choice to get close to what I am looking for.
All the other choices stiffen the front bar more than the rear bar increasing bias to the front (increasing under-steer). If this ends up being too stiff a set-up, the only choice would be to go back to the stock front bar with the BMR rear set to hole 1 for a 26% increase to the rear but that will not do much to decrease body roll.. We will see how it goes on the course this Sunday.
GT rear bar diameter is 18mm
GXP rear bar diameter is 20mm
Given that the two bars are both solid and of the same design the GXP rear bar would be 52% stiffer than the GT bar.
That along with BMR's published increases of their bar over the GT rear bar I got the following
hole 1 - 26% stiffer than GXP rear bar
hole 2 - 74% stiffer than GXP rear bar
hole 3 - 154% stiffer than GXP rear bar
Given the front bars are the same for both cars at
hole 1 - 87% stiffer
hole 2 - 137% stiffer
Then the fact that I would like decreased body roll with just a little more rear bar bias then my current stock setup leads me to think that full stiff on both bars might be the best bet F137% / R154% (17% stiffer bias to the rear than stock GXP). This would seem to be the only choice to get close to what I am looking for.
All the other choices stiffen the front bar more than the rear bar increasing bias to the front (increasing under-steer). If this ends up being too stiff a set-up, the only choice would be to go back to the stock front bar with the BMR rear set to hole 1 for a 26% increase to the rear but that will not do much to decrease body roll.. We will see how it goes on the course this Sunday.