Thoughts on Moroso Trick Springs (Foxbody)

[Ed Wright]

Originally Posted by HawkBrosMav

Ed, what is the logic behind a softer spring in the rear? And how would running a airbag in the rear (we don't as of now) negate or help the softer spring?

I kinda learned it be accident. I needed to get the back of my old '65 Chevelle convert up for tire clearance. Put Station wagon coils in the back, did not hook nearly as well. Too young & dumb to test with them first. Hauled it to a race, to find out the expensive way. I learned longer coils was the correct way to raise it. That right air bag needs the least air that keeps that corner up. Had to run one of those in that '65 Malibu too. Only thing I ever raced with coils on all 4 corners. 7" tire, no prep days. Seems like it was some Rambler springs I found, same dia, but longer, wound from slightly smaller wire raised it an inch, and hooked better than ever.
Had a local salvage with a big crate full of pairs of coil springs tied together, tagged with what they came from. Bring a tape measure and calipers.

[HawkBrosMav]

A lot of good input thank!

One last question on all this stuff. We aren’t havin. Traction issues at all, car never spins 60s are super consistent. We just know we’ve done nothing but shock adjustments over the years. We’re pretty consistently 1.60 at 3000 ft.. DA closer to 5000+ typically. Is any of this worth ET when we aren’t having any issues?

[Ed Wright]

Originally Posted by HawkBrosMav

A lot of good input thank!

One last question on all this stuff. We aren’t havin. Traction issues at all, car never spins 60s are super consistent. We just know we’ve done nothing but shock adjustments over the years. We’re pretty consistently 1.60 at 3000 ft.. DA closer to 5000+ typically. Is any of this worth ET when we aren’t having any issues?

If it always dead hooks, I can not imagine it helping, unless it allowed you to run more air in the tires, and still dead hook. That would be a very small gain anyway.

[Rory McNeil]

A friend of mine installed a pair of uncut Moroso front coil springs in his 351W powered FOX Mustang bracket car, which must have been a lot of fun. He installed them uncut because Moroso said not to trim them, as they will settle. He ran the car for over a year, and the car always looked like a 4x4 truck with the nose way up in the air. He got tired of waiting for the Moroso springs to settle, and ended up switching to a coi over setup. Thats how I ended up with his old springs.
As for the airbags, I like them as without the air bags, the car tended leave with the left front much higher than the right, with the airbags, the car left nice & level. That said, having the car leaning over to the right on launch never seemed to hurt the ET or 60 foot times.