Yeah those are the front and rear spring rates they are 36-way adjustable dampening (both Version RR and Kontrol Pro)
The only thing different between the two I believe is the spring rates.
I think the reason for the higher lbs in the front is to compensate for the weight of engine and drivetrain components
Version RR (more aggressive) http://www.ksportusa...product_id=cd06
Kontrol Pro (less aggressive) http://www.ksportusa...product_id=cd01
I am looking at installing the Blacktop w/ these sexy ITB conical filter trumpets for now:
And as far as chassis stiffening, I am installing a 6-Point rollcage and buying and/or fabricating every one of these braces:
Reason being is later on I will probably be adding a Link G4 Standalone running 8.5:1 Forged Pistons, 4AGZE Rods and like maybe 7-8 psi off a 50 trim .63a/r turbo till I can source a second Blacktop head and build it for boost. But come to think of it, I would probably be better off leaving the high comp pistons in there till I can just build another whole engine for boost. Reason being the N/A would have better response time than a lower comp turbo motor at low boost levels with similar power levels although probably at different RPMs. The ultimate end goal is to have like 350whp with LSD. I am installing the Corolla A-Arms that have the front sway link mounts so I can install the front sway. Stock Geo models didn't come with the front sway which makes it understeer less so now I would be equipped with the OEM corolla one that way it balances out when I install the adjustable 235/245/255% stiffness adjustable rear sway and holds it all together nicely and closer to a reinforced version of what I liked before. Understeer is my enemy I'd rather oversteer and pull straight with both front wheels via LSD. I also want it to be skid-friendly via a KSport hydraulic ebrake and proportioning valve and AE111 Rear Disc brakes with upgraded booster/cyl. I basically am looking at building the ultimate street machine that could be used for autocross and some rallycross. It don't have to look pretty forever and of course I'll keep a C56 in handy in case my fussy beloved C160 goes bad!
So all in all what would you think would be the best option that I could push to the limit and take to races but also drive daily. I'm an aggressive driver and I don't care at all about comfort as I have a second car with OEM ride for that. Would the RR's seriously suck and not be balanced for the car?