hiya
well, a few reasons - one is personally, i HATE body roll (i am a wkend roadracer).
the trucks flat out, imo, need more spring rate, and i am not willing to chg the tbars, as the next step up is substantially stiffer...i live in a bumpy area, and stiifer springs will just bounce it round, and give me even more interior rattles and creaks then i already have. i have always been from the soft spring, monster bar school of thought for street/track vehicles, and set up most of my customers that way. i feel it makes for a better ride/handling compromise then a super high rate.
last, off top of my head, is it will go a long long way toward eliminating mad spinning of the inside front tire when launching off a corner - mine just smokes up froma standstill, and i like to leap out into tiny gaps in traffic, but can't well as i like.
yes, it will bring in some understeer, but nothing hard to balance out with an atr rr bar for the ty guys, or the rear bar for sy's we r also gonna offer (later) in 1.5 inch. i also use and recommend airbags in the rear for lowered trucks (which is most around here), which, if set up with separate fills, are an easy way to tune rear spring rate (tho, yes, psi will vary with temp, etc).
oh - i am rather sure the stock geometry up front ain't zactly giving a nice neg camber gain under compression, so, like in many cases such as fox-up mustangs, and a-body gm cars, a huge front bar will limit body roll such that less positive camber gain occurs, actually improving front grip (this has been proven time and again as i put customers into 1.5 inch front bars in a bodies, and 1-3/8 in mustangs.) this is why i wondered if you had plotted out the geometry. my copy of my front end program (i forget the name) was stolen by soemone who shall die for many sins when i find him.
thanks, mike
