Well, i finally got my 21mm H&R rear sway bar for the R. This is the first modification (besides flapper mod).
I found that at higher speeds, I could easily balance the handling charecteristics of this vehicle no problem, perhaps with some secondary weight transfer and maybe a brush of left foot brake to plant the front. Still, at lower speeds (autocross style stuff), i noticed some pretty heavy (heavy car too ) understeer. I figured id try, I am a fan of the slide anyways.
Install took about 30 min (I work in a shop with lift, etc) and I set it on the stiffest setting, assuming that since it was smaller than the neuspeed 22mm bar, theoretically it would act upon the car less.
Boy was I wrong.
Just before installing the bar, I took the car for a spin to warm the engine up (for oil service), and there is a turn around here over by my work. I proceded at about 45mph to flick and left foot brake the turn around pretty aggressively (mind you, with the stock RSB this time), And I got the vehicle to rotate about 10-15 degrees for about 10 feet. Not bad. This was going to be my initial benchmark.
After the oil service was complete, and the RSB installed. I went for the same ride, and performed the same manuever. I probally should have drove the car more, but my anticipations were low. Either way, the area was decently safe, grass on either side, etc. Anyways, I drove through pretty much the entire turn around sideways. Luckily AWD is all of our friends and throttle application easily subdues "out of controlness".
So ya, huge difference.
More driving impressions prove this mod to be almost "dangerous"... especially to a person who say, borrows your car to get a coffee or something...
going around on ramps at moderate paces (not breakneck stuff, remember were still on the street here), adding more turn in, say if you had to avoid something, pretty much instantly upsets the car and the rear end starts to slide.
Bottom line, I have to be careful, and give people fair warning of the rotational habits of this short wheel based car now . at least until i can get under there and set the bar on full soft. My tire pressures on the stock F1s are 40/44 too.. I run more in the front than recommended to prevent failed sidewalls (had one before 1500 miles, with hitting no obstructions in the road )
I really wonder what the guys with the new 25mm rear race bar from neuspeed experiance. I mean, any stiffer than this, and you need to compensate with the front somehow. Its just necessary.