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Kirkham Motorsports

 
 
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  #6 (permalink)  
Old 06-28-2013, 05:26 AM
juneracer's Avatar
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Join Date: Jun 2013
Location: Palm City, fl
Cobra Make, Engine: ERA 427SC, FE 428
Posts: 8
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Quote:
Originally Posted by Bobcat View Post
What are you planning to do with the car ? Strictly street or street/HPDE and track usage ? That affects your spring choice .... do you have the ERA IRS rear of the Jag rear ? I have the ERA rear and do street and track the car . For street/track with the IRS , I like in the 700 to 720 lb/in range and for the front , 300 to 400 lb/in .... but it will ride stiffer on the street .
Or you could do what I did and learn about motion ratios , wheel frequencies etc. and then calculate what your car wants .
Spring rates are very subjective for each individual/car and what one person likes , another will hate . I went through many spring changes before I got what I wanted .
likely a lot of street running. FL is pretty flat where i'm at. might get some track days once i get acclimated. it has the Jag rear; 4 damper and spring. then with spring and damper comes tire choice. the BFGs on the car look original (just got the car) and aren't very nice currently. seems the forums point to avon or BBs. i know it needs tires.

any suggestions are appreciated.

thanks
Rick
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