STANG KILLA SS 2

iTrader: (6)

whats the next step above Strano/BMR Springs? if someone was looking for a spring set that was more Track only. (road race/ Autocross)

Corvett z07

iTrader: (2)

A sleeved shock body that'll accept Hypercoils. Then any spring rate is supported really. 800/400 front/rear are what some autocrossers are running. Ground Control makes some kind of Koni kit that uses a Eibach spring (not the bad Eibach's) Also I just contacted Unbalanced Engineering about their Race Bilstein and Penske offerings to see what that's all about, check into that as well

dailydriver

^^^I am running the Ground Control/2.5" I.D. Eibach coilover conversion on Koni double adjustable yellow Sport dampers on the front of mine.

The springs are 650 lb/in, and without revalving these Konis for it, I would NOT go to a higher rate spring.

STANG KILLA SS 2

iTrader: (6)

I have a brand new set of Koni SA's(front and rear) in hand ready to go on the car. can they be used in either of the setups you guys are referring too? I don't mind sending them back/selling them if need be. id like to do this swap once. not do the Koni & Strano/BMRs and want more later.

are these the kits?
http://www.ground-control-store.com/...ion.php/II=969
I don't see spring rates listed here

http://www.ground-control-store.com/...tion.php/II=21
this kit appears to let me use my current konis. is this kit the front only? what is done for the rear?

what is the difference between the two kits?


any other info yall could give on your kits or other kits would be greatly appreciated.

Mongoose350

iTrader: (1)

I would suggest a good set of adjustable coil overs. With that you can adjust ride height, rebound, stiffness. Basically anything to suit whatever your wanting to do.

JD_AMG

So wait, why do you think that a Strano or BMR spring will not be enough for you? Have you tried either?
My advise would be go with what you have (the koni SAs) and get a set of strano springs. If you are new/newer to auto-x or road racing you will NOT be able to out drive the car.
Don't forget swaybars and if you are that serious get a watts link. After all that if you still want more spring then go with something custom - unfortunately then it will be more of a trail/error game of finding what suits you best. But really, put that off until later (if you ever get to it at all), get strano springs, swaybars and a watts link, sticky tires and go drive the car.

dailydriver

^^^This is good advice!

But, IF you want to use your Konis as (front) coilovers, GC DOES make a kit for the conversion, WITHOUT having to buy the shocks with it (but that is what I would have done WAY BACK when I bought my set up, since they put it all together for you).

I believe they will sell you ANY rate 2.5" Eibach front spring you want with that kit (or maybe even sell you just the conversion adapter parts, and then you could get your own springs??).
But again, I would not go any higher than a 650#er on stock, not re-valved, Koni Sports.

I had their alloy weight jacker/height adjuster on the back (sits under the spring on the factory axle perch) with their pigtailed (tapered down to 2.5" on ONE end to sit on the weight jacker) Suspension Spring Specialists 200# springs, but noticed when jacking up the rear (NOT by the pumpkin) that the springs dropped out of the upper mounts on full axle 'droop'.
This concerned my since that could possibly happen while open tracking over a medium to high speed compression bump/'yump' (something you DO NOT want to happen, and i could not find 'helper/tender' springs to hold them in place for this so I sold them and just went to Stano's standard/OEM fit, Vogtland made, rear springs.

Corvett z07

iTrader: (2)

Sticky tires are easily overlooked, possibly because they're extremely expensive and they don't last very long... Tires will do a lot of good when paired with even a decent suspension setup. Crap tires are well...crap

STANG KILLA SS 2

iTrader: (6)

I called them today. told them what I wanted from the car, and info about the car.
at first he suggestion 1000# fronts and 200-225 rears. but then later in the conversation said that he accidently had me pluged in as 3rd gen. he changed whatever he was doing to 4th gen and said 600 fronts and same 200-225 rears.
at only 50# more than a strano/bmr spring this didnt really seem worth it to me. however ride height is really important to me as im used to sportlines. so the coil overs I like the idea of because they allow me get the increased spring rate im after, but not loose the ride height im at (strano/bmrs would raise my car)

the good news is the price seems really fair at GC. just springs are 225ish average(strano/BMR). the GC coilover kit is only 429 and includes springs of my choice.

I just not sure how much more involved the GC install is, and what springs I should go with.

STANG KILLA SS 2

iTrader: (6)

R888s are next. I wanted to tackle suspension and do the driver mod first. as I currently have all the worst components on the car for handling. sportlines, stock struts w/ 120k, and rear drag shocks.

dailydriver

VERY true, but it seems that most on here have NO problem driving around on the street with somewhat expensive, very sticky, VERY quick wearing, rear drag radials, or even more squirrely bias ply slicks, all in the hopes of winning that stoplight race.

But when it comes to making their car turn left and right, and brake, they throw on the cheapest, most pure **** garbage China tires they can find. (IF they are not running even MORE skittish, dangerous in an emergency avoidance move/severe braking event on the street, skinnies, usually without a front bar as well.)

LilJayV10

iTrader: (39)

after konis/springs, sams bars then watts. This is Sam's normal approach.

Midnight02

iTrader: (8)

How much road course or auto-x experience do you have?

Unless you have a ton of seat time, I wouldn't think there's any chance you'll be driving the car hard enough to where the spring rate is the limiting factor in your setup. I started with stock springs, bars and Bilstein shocks and then upgraded one item at a time. In hindsight, I have a great appreciation for being able to feel the incremental difference each upgrade was responsible for.

Just my $.02, however I'd be much more inclined to slap Strano springs on the Konis and spend the rest of the cash on sway bars and a set of track wheels/ tires. That setup would easily out handle a stiff spring, stock bar setup on street tires.

Sam Strano

iTrader: (41)

You do realize that converting the Koni's to a GC setup means modifying the shock and bouncing all warranty on the fronts, right? And it also means a rear spring that can come loose from the body at axle droop. I've seen what happens when a short rear spring comes out of the rear of an F-body, it's a sight... when it's not your car that slams down on the tire and tears stuff up.

If you are hell bend on having height adjustment, then you need coil-over setup in front and coil-over or weight jacker in the rear.... but you still need GOOD shocks and the coil-overs you typically see around here like Viking, QA1, etc are not that.

My advice next would be Ridetech stage 2 (I carry those) or KW Variant 3 to touch all the bases for use in the way you claim.

That said, MY springs, the ones *I* make are direct derivatives of what *I* ran on my 2001 Z28 and won a bunch of SCCA National Championships on. Furthermore, here's some video of it on the track back in 2010 on R-comp tires too.

http://www.stranoparts.com/videos.php?VideoID=2

dailydriver

^^^EXACTLY WHY I dumped the GC weight jacker/short Suspension Spring Specialist spring set up for YOUR rear springs!!

blackandgold

iTrader: (2)

Keep in mind it sounds like ridetech will revalve their shocks for whatever spring rate you decide on. Plus you'd have coilovers all around.

RedDeadG8

iTrader: (3)

Sam FTW!