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how to determine sping rate for 4 link, coil over #1252517 06/17/12 11:05 AM 06/17/12 11:05 AM
Joined: Jan 2003 Posts: 2,872 CheddarHead till October weedlayer OP master
weedlayer OP master Joined: Jan 2003 Posts: 2,872 CheddarHead till October	chart? formula? pull straws??

Re: how to determine sping rate for 4 link, coil over [Re: weedlayer] #1252518 06/17/12 11:16 AM 06/17/12 11:16 AM
Joined: Apr 2004 Posts: 12,339 somwhere S smokinwoody I Live Here
smokinwoody I Live Here S Joined: Apr 2004 Posts: 12,339 somwhere	from what I was told at QA1...put the rear on scales...then look it up on charts...Strange has one also.. http://www.qa1.net/tech/drag-street-faqs.php

Re: how to determine sping rate for 4 link, coil over [Re: weedlayer] #1252519 06/17/12 11:25 AM 06/17/12 11:25 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: chart? formula? pull straws?? You have to know the rear weight(race weight) then subtract the weight of the diff then bases on that weight you can determine the spring rate... length is determined by the shock used

Re: how to determine sping rate for 4 link, coil over [Re: MR_P_BODY] #1252520 06/17/12 11:32 AM 06/17/12 11:32 AM
Joined: Jul 2010 Posts: 1,845 Tampa D DusterDave top fuel
DusterDave top fuel D Joined: Jul 2010 Posts: 1,845 Tampa	Monte Smith once told me to select the lightest coil over spring that will hold the car up. Gone to the dark side with an LS3 powered '57 Chevy 210

Re: how to determine sping rate for 4 link, coil over [Re: DusterDave] #1252521 06/17/12 11:51 AM 06/17/12 11:51 AM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Monte Smith once told me to select the lightest coil over spring that will hold the car up. Thats true... just need to hold the body up

Re: how to determine sping rate for 4 link, coil over [Re: MR_P_BODY] #1252522 06/17/12 12:11 PM 06/17/12 12:11 PM
Joined: Jan 2003 Posts: 4,421 in a chair mopartony master
mopartony master Joined: Jan 2003 Posts: 4,421 in a chair	Yes lightest spring to hold the car up at the shocks install height without using more than an inch of preload in the spring. That is what I use and we used on the pro-mod/ADRL cars I have been around.

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