GM Muscle

iTrader: (9)

Well, my 60's are currently in the mid 1.40s and I'd like to drop those into the low 1.40s or possibly high 1.30s. I'm replacing the stock torque arm so I figured I might as well give some drag springs a shot too (running Hypercoil lowering springs right now).

What is out there on the market for drag springs? Does QA1 make a rear spring for these cars? I refuse to change my stance, do they offer them in different lengths?

Also, can anyone suggest some ball park spring rates to start with? I havn't scaled all four corners but, race weight/street weight will be under 2950lbs.

Thanks,
Andrew

BTW: My suspension consist of QA1 shocks (Rs in the front), double rod end LCAs, relocation brackets, solid mount adjustable sway bar, and I think I'm going with an Alston style torque arm.

Ping King

iTrader: (20)

i would run stock springs in teh back with the isolator removed....thats what i run. Although im not sure how low you are in the back, i dropped about 3/4 of an inch in the back.


a lot of the guys who mini tub run a real narrow diameter spring in the back, that are also available in different spring rates.

LC

No rear coilovers Andrew?

skipperbisket

iTrader: (4)

get the Wolfe Racecraft Adjustable rear upper spring cups, allows for 3" of adjustments and you can run any aftermarket spring you want to get exactly what you want out of the car. that's what i just ordered for my new rear, along with their swaybar and torque arm and afcos for the rear.

Ben R

The only way to actually know what rate you need is to put your car on scales. Then call your manufacturer or choice (Strange has always done me right) and give them the info on your car. From there they will tell you what you need.

GM Muscle

iTrader: (9)

I decided to wait until I put togethor a 9" to convert to coilover rears. Maybe I still will this spring.

I'll have to track down our local DOT guy to scale the car for me. He'll love looking the car over.

I will look into the Wolfe set up alittle more too.

skipperbisket

iTrader: (4)

good deal GM, mine should be here soon and i'll get ya some pics and such once they are on the car.

GM Muscle

iTrader: (9)

Some pics would be great. I thought about it today, and I might as well just drop the cash now for coilovers. Selling my rear "F's and Hypercoils will help offset the price of the Sphon package.