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What spring weight should i use?

981 Views 5 Replies 4 Participants Last post by  Vinco
I am thinking of going to QA1 coil-overs in the front and was what was so of the coil weight rating are you guys running?

383 sbc
alum. heads
no wheel wells
inner bumper is gone and shocks
no heater box firewall shaved


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the spring rate may differ between the styles of coil-overs... are you using a std coil-over or a "beehive" style coil-over?

on a 1st/2nd genner with beehives you'd probably want a 350lb spring. i'm unsure on the 3rd genners. i'd recommend a call to QA1/HAL and they'll zero you right in.
i was thinking of calling them but figured someone had to do what i am doing
...a 350lb spring...
That's one heavy spring!



Just a pet peeve. Spring rates are measure in force/deflection (distance).

ie; lb/in, lb/ft, lb/mile, N/mm, N/m, etc

Even though it's "assumed" that the rate is lb/in in the automotive marketplace, that's no reason to be lazy and leave off half of the unit.
Just sent summit tec the question to see what they have to say!
That's on heavy spring!



Just a pet peeve. Spring rates are measure in force/deflection (distance).

ie; lb/in, lb/ft, lb/mile, N/mm, N/m, etc

Even though it's "assumed" that the rate is lb/in in the automotive marketplace, that's no reason to be lazy and leave off half of the unit.
LOL! I was gonna be a smartazz and say "the one that weighs about 10 lb."
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