am planning on getting the paracing coilover kit i have strange 10 way adj shocks so am triying to see what spring rate should i go with because these 4v are pretty heavy so if u can help me out here ill appreciate it thanx.
what coilover spring rate for 03 cobra
- Thread starter 510vnum
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I have the MM kit with 350 front and 500 rear.
500????? either you're way high or i'm wayyy low
Great setup for a street car, and fun on the track.
Here is a good bit of info on coil spring rates VS coil-over spring rates...
MM Mustang Coil-Over Conversion FAQs : Maximum Motorsports, the Latemodel Mustang Performance Suspension Leader!
Yup I'm happy with them. Also once I get the R888's I will get to the track and see what I can do in the curves.
400 front/600 rear built for street and road couse. Not the ideal drag race setup.
how is the ride? Is this your DD? Have you tried road racing?
I have 14-175 in the rear, have not gone coil over in the front yet.,,.,. :-D
is 14-175 way off, or is that because I am not a track car? :shrug:
I would read the link in post #5 above. It explains the conversion factors well. 175lb/in spring rate may be soft or not. It completely depends on where the spring is located in the suspension, what the car weighs and what you are going to use the car for.
Jason @ MM recommended to me 575 front and 375 rear... So thats what I have... it has great street manners where it is still yet not annoying... I am 99% street
Mine rides great. I do road race here at a local F1 track (Hockenheim) and i have the long sweeping autobahn curves as a testing ground. I haven't reached the point where anything short of a Lotus Exige can really carry more speed through most curves than me. But that is just me running a bit too hot through curves sometimes and with Toyo R888 tires.
Sounds like you have that backwards.
It also depends which brand coil overs you go with. I know UPR recommends 250 in the front for their kit.
The overall spring rate used in the front and rear suspension should be chosen based upon the weight of the car on each corner, how little body roll and brake dive is desired and how fast the transient response is desired. Then, the shock and strut damping should be matched to the springs and corner weights on the car.
600/600 is stock. HR and Steeda are close in spring rates.
Front Rear (Rate lbs/in) Fr Rr (drop inches)
H&R Race 750-780 770 1.25 1.00
Steeda Sport 720-780 650-790 1.25 1-1.25
Stock 600 600
Front Rear (Rate lbs/in) Fr Rr (drop inches)
H&R Race 750-780 770 1.25 1.00
Steeda Sport 720-780 650-790 1.25 1-1.25
Stock 600 600
These are not coilover rates so you are just confusing people.
I had 400 lb/in springs on my front c/o's and loved the way it handled. 600 is a good match in the rear.
For normal street driving, I'd say 350/550 is probably a good combo. With strange struts that are made for drag racing, they would suck with a stiff spring. If you want drag race springs, go with something like a 14"/175lb spring in the front.
If youre going for drag racing, I'd get 14-175 or 14-200 front springs and for the rear, to match a 130lb SRA coilover spring for an IRS car i'd get a 275-300lb spring. But guys, you have to realize that SRA's and IRS's dont share spring ratings in either coilover or stock location springs. Coilovers on the IRS have about 50% wheel rate, whereas SRA coilovers have about a 110% wheel rate. Its all depending on where the spring is located. So IRS guys need a 400lb rear spring to maintain factory wheel rate. SRA guys need a 100lb coilover spring to maintain the stock wheel rate of a GT mustang, or a 150lb spring to equal that of a lowering spring, depending on what lowering springs you compare them to.
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