Sprężyny coil over

[jaco]

Nie znalazłem odpowiedniego tematu, a trafiłem na kilka ciekawych informacji w sieci, które być może komuś się przydadzą.

Twardość sprężyn przód/tył (przedział oznacza sprężyny progresywne)
Stock GT.......................... 400-500/165-265
Stock 94-95 Cobra...........400/160
Stock 96-98 Cobra...........400-505/165-265
Eibach ProKit cpe.1.5"......460-570/200-250
Eibach ProKit vert.1.5"......460-570/170-310
Eibach Sport......................660/260
Eibach Race......................700-850/200-260
FMS "B"........................... 425-530/200-300
FMS "C"........................... 650/200-230
FRPP "R".......................... 700-850/200-260
H&R Sport 1.5"................ 500-575/250-285
H&R Supersport 1.5"........ 700-760/275-300
H&R Race........................ 750/265
H&R Superrace................. 1020/300
Suspension Tech Street......725/230
Suspension Tech Comp..... 850/280
Steeda Sport 1.25"............650/200-250
Steeda Comp/St 1.25".......700-850/250
Steeda Full Comp 1.35".....850-1050/???
Global West 1.0"............... 800/160
Global West Drag 1.0".......680/160
Global West Comp 1.0".....1000/160
Griggs coil-overs................350 to 500+50.175 no TA
Griggs coil-overs................225w TA + panhard
Dech Speeddrive 1.5"........1000-1200/210-280
Jamex 1.5".........................450-550/170-220
MAC................................600,680,700,
800,925160,170,190,215
Mac progressives...............450-520/200-230
Saleen (Eibach ProKit?)..... 460-570/200-250
Kenny Brown 1.5"............. 650/800

Tutaj wersje IRS
1999 Cobra.......................500/470
2000 Cobra "R".................800/750
2001 Cobra.......................500/470
2003 Cobra Coupe............600/600
2003 Cobra Convertible....500/470
H&R, 99-01 cobra w/IRS
(except convertible) 700-760/685
H&R, 99-01 cobra
convertible, Super Sport 700-760/685
H&R, 99-01 cobra
convertible, Race 750-850/770

Tutaj zestawienie z informacją o różnicy wysokośći
http://www.miracerros.com/mustang/springs_calcs.htm" onclick="window.open(this.href);return false;


A tutaj z http://www.svtperformance.com/" onclick="window.open(this.href);return false; jak przeliczać 'normalne' na coilover'y (PRZÓD)

Here is an explanation from MM site to answer you question about spring rates.

Q. How do I compare a front coil-over spring rate to a conventional spring in the stock location?

A. The spring rates must be converted into wheel rates. The wheel rate is the spring rate measured at the wheel. The conversion is done through the use of what's called the motion ratio. For a stock Fox Mustang front suspension, the wheel rate is 25% of the stock location spring's rate. For example, an 800 lb/in stock location spring has a wheel rate of 200 lb/in. For a coil-over suspension, the wheel rate is approximately 90% of the coil-over spring's rate. A typical coil-over spring rate for street performance handling would be 350 lb/in, which provides a wheel rate of about 315 lbs/in. Note: The exact motion ratio conversion of the wheel rate for a front coil-over suspension is determined by the angle of the strut. That angle is the result of the camber and caster settings, and by the SAI (Steering Axis Inclination).

W skrócie, jak mam sprężynę 850, to podobną sztywność powinien dawać coil over 850*5/18=236, i odwrotnie, coil over 350 to jakieś 350*18/5=1260 na 'normalnej' sprężynie.