spring rates

[malibuick231]

Does any one want to share your spring rates and what shocks you have on your v8 regal?

 

[cwmccray]

Not a V8, but running MOOG vari rates all around. Not to get off the subject, but I finally caught PINKS ALL OUT Montgomery, you car looked MARVELOUS..... All the HARD WORK was worth the 10 sec of TV time

 

[malibuick231]

Thanks Chuck. I am looking at redoing my suspension for a better 60ft on drag radials. I just need to know what springs and shocks to get and still keep the car at the same ride height.

 

[Louie L.]

Does any one want to share your spring rates and what shocks you have on your v8 regal?

Currently I have stock GN springs with 2 in drop spindles. I have yet to really hammer on the 60 fts, but its gone 1.65 MTDR's) so far leaving on less than 5 psi with a lazy boost ramp curve.

 

[malibuick231]

Thanks Louie but I am looking for more of a race set up. I have been a 1.52 60 on the 275/60 but I am looking for some low 1.40's.

 

[cwmccray]

Maybe Dusty will chime in. Looking at your car, your are going to have to get a 4 link and coilovers.

 

[Louie L.]

These cars can go down track with some boost control and basic suspension pieces, Dusty's car has stock NA V6 springs up front w/ TRZ control arms. Coil over springs out back on the stock location. Stock suspension points and quality AFCO shocks.

Mine is very close to his , but i went with strange shocks.

 

[malibuick231]

Yea I am going to do Afco double adjustable on the rear with the coil over spring in the stock location. I was thinking a 12in 140lb spring with the adjuster from wolf racing for the spring to adjust height. On the front I was going with a Afco single adjustable and the stock spring. I know Afco makes them as a direct replacement is that what I get or do I need a certian length?

 

[Louie L.]

Yea I am going to do Afco double adjustable on the rear with the coil over spring in the stock location. I was thinking a 12in 140lb spring with the adjuster from wolf racing for the spring to adjust height. On the front I was going with a Afco single adjustable and the stock spring. I know Afco makes them as a direct replacement is that what I get or do I need a certian length?

I dont know much about the AFCOs. In my opinion they are over kill for the price. Thats just me. I think that the strange shocks are very nice and much less $$$. I have 12-150 QA1 springs on mine.

 

[Dusty Bradford]

The proper spring rate for the back may be a trial and error type of thing.

The 12" 140 or 150 is a good place to start and the Wolfe adjusters will be a big help to get the ride height where you want it.

I have the 14" 130's on mine with the AFCO dbl adjustables. Qa1 dbl adjustables in the front, stock V6 springs with TRZ arms.

Dbl ajustables in the rear are a must have IMO. I got the AFCO's off another car but after seeing how well they work, I wouldn't have a problem buying them again. The best thing about them is, I know when I move them 1 click, the car will see a difference. My Qa1's on the front don't seem as linear on the adjustments. From the base setting, it takes 2-3 clicks before they start responding. But the QA1's have enough adjustments that those 2-3 clicks aren't that big of a deal.

Just make sure you have a good anti-roll bar, dbl adjustable arms and shocks.

 

[malibuick231]

I have the BMR anti-roll bar, BMR billet lowers, and eldebrock udjustable uppers on the car now. Dusty you have seen my car how low it sets and I would like to keep that way. If I can get in the low 1.40s I would be happy. I do have a new set of hoosier 275/60's I am about to go pick up and will be trying them Thursday if it dont rain.

 

[Dusty Bradford]

I have the BMR anti-roll bar, BMR billet lowers, and eldebrock udjustable uppers on the car now. Dusty you have seen my car how low it sets and I would like to keep that way. If I can get in the low 1.40s I would be happy. I do have a new set of hoosier 275/60's I am about to go pick up and will be trying them Thursday if it dont rain.

Your car does sit low, and it needs to. This helps the instant center.

 

[lazaris]

The Strange are linear type shocks were as the Afco are a digressive. Big difference.

 

[Louie L.]

The Strange are linear type shocks were as the Afco are a digressive. Big difference.

Huh? :biggrin: Can you explain the differences? Thanks

 

[lazaris]

Huh? :biggrin: Can you explain the differences? Thanks

Sure. The Linear design has a high flow rate at low shaft speeds with little resistance, and increases resistance as the shaft speed increases. The rate of the shock continues to increase as long as the speed increases.

The Digressive design has a low flow rate at low shaft speeds which provides a lot of resistance and control, and then the resistance rate increases with increased shaft speeds to a pre-determined level and then tapers off. As the shaft speed continues to increase, the resistance stays uniform above a certain shaft speed. This "pop-off" characteristic works well for reducing the possibility of building excessively high amounts of resistance, usually associated with sharp increases in shaft speeds due to running over bumps and holes in some racetracks.

Basically the Digressive design is better suited to the rear than a Linear design to control the suspension, especially leaving on the brake. It can control the rear end better with that sudden jolt but then flatten out not being too harsh in the way it reacts on more bumpy tracks as to not upset the car as much as a Linear would.
The Linear design is "ok" to use on the front.

 

[malibuick231]

So use Strange shocks on the front and AFco on the rear?

 

[Louie L.]

Lazaris,
Thank you for the explanation. I never knew there was a difference.

 

[lazaris]

malibuick231, you could do that for a cheaper alternative.

Your welcome Louie. Most of it comes from the design of the piston orifice shape.