Not sure if you guys had a chance to see my earlier thread here (http://legacygt.com/forums/showthrea....html?t=222390
) regarding a general confusion on what I was looking for in suspension, but I ended up getting Swift Springs and utilizing the OEM Bilsteins. I just wanted to give an indepth review for anyone who is also looking to upgrade only springs on their OEM Bils setup and need some insights or further clarification.
Swift Spring Rates: 241(F)/370(R) with a drop of -1.2"(f) and -1.0"(R)
OEM Spring Rates: 196(F)/308 (R) with a gap of 4 fingers in the front, and 2 fingers in the rear.
Basically springs are 20% stiffer all around.
I'll just give a quick blurb (to the best of my abilities) about each of the characteristics which were affected with this spring change and I'll also try to give some percentages of how much things changed.
Brake Dive/Accel Squat: For dive and squat I'm about 75% satisfied. I think if the rear had a little bit more spring rate it would be perfect. It's absolutely crazy how a slightly shortened, 20% stiffer spring can make such a huge difference in brake dive and squat. I would say brake dive has been reduced by 60% (from stock) and squat has been reduced by 40%. It's still there on hard take-offs, but under normal driving it feels great. I will get a saggy butt spacer to shift a tiny bit more weight on the front; hopefully that will help.
Body Roll: Along with dive and squat, I do think a bit more spring rate all around would greatly helped with body roll - the rear does roll a bit more. In my mind, body roll has been reduced by about 50%. It's still there on hard corners, but the GREAT news is that sway bars target EXACTLY this issue. i'll be picking up beefier sway bars, hopefully about 20% stiffer to get me exactly where I want to be.
Damping:This is more a testament to the OEM Spec.B bilsteins, but my opinion is that they're a perfect match. I honestly felt like the OEM springs were a mismatch with the bilsteins and overdamped. It always felt like it was "crashing" on low speed bumps furthermore there was WAY WAY WAY too much wallowing and pitching back and forth between shifts at speed. The added spring rate removes some of that "crashing" low speed suspension feeling by removing the movement from the shock and absorbing it, but also doesn't oscillate in a wallowly way on high speed bumps. I would say it's 90% a good match!
Comfort: Yes, something had to give. Overall, I'm about 80% satisfied under normal driving conditions, however the ride is a bit more "firm" and can be slightly more jarring on rough roads - maybe 30% rougher no biggie. What I do like is the reduction in wallowing though which makes the car feel more planted and that is definitely a type of good comfortability.
Aesthetic: This was one of my big concerns, and frankly I'm quite pleased! I'm 90% satisfied. the remaining gap is about 1" in the front and .8" in the rear with a full tank of gas, the springs haven't had too much time to "settle" but swifts supposedly don't settle too much. I still have enough height to clear a small parking lot block thing but it's takes a fairly sporty stance now. The rake is still backwards but it's nothing some 3/8" spacers can't handle!
Overall: Although it's no ohlins, or KWV2, it's also 10X cheaper! I like it and with a 3/8" saggy butt spacer and a new front and rear sway bar, the swift setup can be a GREAT compromise between daily drivability and sportiness. I will never take the legacy "tracking" so its perfect for my uses. It's WAY better than the stock springs and it's exactly how it should have come from the factory.