Done alotta research over the weekend, gained a bunch of knowledge on springs lol, but still have inquiries about my situation for the suspension gurus:

Car Info: 2007 G35S Sedan (RWD)
I have springs installed, but want the front to be a little lower. Looking into mix matching front and rear springs. Currently have Swift Springs (linear) that lowered my car F-1.2 (559 lbs/in) & R-0.8 (503 lbs/in), but want to install EiBach Pro Kit (progressive) front springs F-1.4.

I'll be satisfied with the new front height, but am still curious about running progressive springs in the front and linear in the rear. From what I understand, the EiBach have a very similar end spring rate and the difference with a softer starting spring rate will influence over-steer (nothing crazy, but notable). Also, ride comfort would increase while running progressive in the front with less aggressive spring rates under normal driving conditions.

Just wondering if anyone has done this before, has an insight on my vision, or any suggestions/different angles to take.
Yes, I understand coilovers > everything but don't want the constant tempation to go lower lol.

 

Bump. Anybody?

 

Alot of spring combos are actually set up this way. U probably won't notice a difference.

 

Thanks

 

Running springs with different rates isn't recommended unless you know exactly what you are doing.

 

The Eibach final spring rate is only 10 bs/in softer the Swifts linear rate.
I'm just going to pull the trigger since I can get my hands on a new Pro Kit set for $150. Worst case scenario I just put the swifts back in (though I'm thinking it'll work out)

 

I'd recommend coils. At first I purchased revised Z suspension for my 04 sedan thinking "I think that's a good enough drop for me. It's too impractical to lower more (and here in Hawaii you need your modifications approved by the state, can't be too low), I think I'll just settle for the 1 inch drop". If you like the look of cars lower than yours there's a chance you may want to lower even more in the future. I should've gone coils the first time just like everyone has said.

 

Had BC coils on my last G35 and KSports on my Honda, they were great but not trying to go that route this time around. Due to the combination of price and temptation, I'm going to stick with springs since they are cost effective and the height is static. I understand I'm throwing together springs to get the drop I want, but this would be a one and done move if everything goes to plan. Total dollars spent is still under $400