Quote:
Originally Posted by mcsoul
I wonder which BMR upgrades make the most sense with MRC and a 1LE specifically.
|
Well it's hard to say what will work for a 1LE, since GM is upgrading the suspension tuning.
I have a 2SS with MRC and definitely felt a big difference from the rear suspension mods that I did. Although I did a lot at once, I think it's one of those things where each part only adds a little bit but they come together to make a drastic change.
I bought all the available suspension arms with spherical ball joints, but now that I've been driving around on them for a while I think that might have been overkill for a mostly street driven car. I think the upper control arm and toe rod make sense with easy on-car adjustability and they're most responsible for keeping correct alignment under power and while loading the car up in a turn. The trailing arms I would get with poly bushings and no adjustablility, as there's absolutely no need to adjust these for street driving... even if you know what those adjustments do.
The cradle lock out kit is pretty awesome, as it removes like 90% of the deflection while keeping the softer rubber - that really helps with NVH, anyone who drove a car with poly or delrin bushings knows the frequent vibration can be annoying.
There's also two types of movement you get from the rear end... what I thought the OP and a few others were talking about is the flexing of all the components at the rear end under power - it feels sort of like you're breaking traction, but the movements are much smaller than the fishtailing you get in a full wheelspin situation. Breaking traction won't be fixed by upgrading the suspension (edit: it will help reduce wheel hop and keep better alignment, that in turn will provide better traction as the tires are touching the road instead of bouncing around or pointing into an incorrect direction... so there are traction benefits in some situations. I know people will point this out), better and wider tires will be of most help there. If all you care about is the fastest possible acceleration, your money would be better spent on Michelin PSSs. The suspension upgrade will really let you feel what those rear tires and chassis are doing in any situation - instead of the slightly hazy and float-y feeling the stock car has.
Edit 2: less flex will also improve power delivery and response... as less power is wasted on compressing rubber bushings and flexing stamped suspension arms.