Steeda Progressive Spring review

[RonStang6G]

@Steeda what bumpstop size do you recommend for the progressive spring with the proaction adjustables - front and back

I had the Steeda Progressive Springs installed on my 2016 GT that already had Adjustable Pro-Action Shocks & Struts installed on last Saturday. I used the Ford performance Jounce Bumpers (bump stops). I used these because they are softer than the OEM bump stops that Ford used with non-PP springs. The front FPJB is the same length as the front OEM bump stop but softer. The rear FPJB is an inch shorter than the OEM bump stop. I like the way these bump stops work with the Steeda Adjustable Pro-Action Shocks and Struts and the Steeda Progressive Springs. So far I have only put about 50 miles on the car. It snowed here on Sunday and Monday and I only had time for a short drive today after the roads cleared up. The weather has warmed up so tomorrow I will put some miles on the car. I haven't had time to adjust the shocks & struts yet. It will take me a whole afternoon to adjust & test different amounts of rebound stiffness on the shocks before I decide what settings I like. Once I adjust the shocks and put some miles on the car I will write a more complete review. So far I like this combination of springs, shocks, and bump stops. The ride and handling are both much better than with OEM springs and the Pro-Action Shocks & Struts. But I think there will be some additional improvement with shocks & struts adjusted to the progressive springs. I currently have the rebound adjusted for the old springs, about 3/16 turn from full soft for front and back. I thought this would be a good starting point because it would reduce the bounciness that the shocks and struts have at full soft on the rebound adjustment. I tried about 15 different settings on the Pro-Actions with OEM springs before I found the setting that I like best. I don't think it will take that many adjustments this time now that I have been through the learning curve for the shock adjustment.

Edit: 3-9-17
I have decided the drop on these springs is just to low, the car has ground clearance issues that I just don't want to deal with on a regular basis. So I have ordered some BMR SP089 Minimum Drop Front Performance Springs and BMR SP082 Rear Performance Springs. I think this combination of springs will be more to my liking. The ride with the Steeda Progressive Springs is better than with the OEM springs but not as good as I was expecting based on the spring rates. On paper these springs looked better than they turned out to be. Also I have coil to coil rubbing issues in the rear that I just don't like.

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[jabrax]

i currently have the Ford performance shocks on the car, but i am selling them, so I was hoping I could cut the oem bumpstops

 

[jbailer]

I have the Steeda progressive springs and Koni adjustables. Initially I didn't trim the factory bump stops at all. Trimming them down to the first indentation above the black ring made a definite improvement. I've only modified the rear, never touched the front. Then I got the Steeda adjustable bump stops and put the short stop in the rear. Again a significant improvement over the trimmed factory stop.

The short Steeda stop for the rear is a little shorter than where I trimmed the factory stop. The problem with trimming the factory stop I think is the fact that it gets pretty hard where you need to trim it to and that black plastic ring is very hard. The Steeda stops being a little shorter and urethane I guess it is work much better!

 

[Norm Peterson]

The problem with trimming the factory stop I think is the fact that it gets pretty hard where you need to trim it to and that black plastic ring is very hard.

You should be able to drill a tapered hole down into the end of the cut-down stock stop and soften it a little that way.

Not an S550 bump stop, but I think it illustrates the idea clearly enough.

Norm

 

[jbailer]

You should be able to drill a tapered hole down into the end of the cut-down stock stop and soften it a little that way.

Not an S550 bump stop, but I think it illustrates the idea clearly enough.

Norm

Norm,

While that might be a good suggestion for bump stops that are all rubber, it won't work for the Ford factory bump stops. See the black in the picture? That is a very solid material like plastic. drilling this won't help.

 

[Norm Peterson]

I'm sure that the hole that's already there could be opened up a little, and that there may be a couple other possible approaches as well. Is that black plastic a full layer or only a ring constricting outward distortion of the yellow stuff?


Norm

 

[jbailer]

It's the later. I'm sure you're probably thinking you could just cut the black plastic ring off right? While that is possible, for $60, I like the Steeda solution.

 

[Norm Peterson]

Actually not what I was thinking of (that was more along the lines of making the yellow stuff a bit 'squishier' inside where it is constrained, or making the black stuff a little more willing to 'give' a little).

Guess I've got way too much DIY'er DNA in me.


Norm

 

[Rebellion]

Why not just cut the remaining portion of the yellow and pull out the black ring?

 

[jbailer]

Haha! Yeah but I like the way you think. Unfortunately the black stuff isn't going to soften, it's very hard. It's also a bit thick, I'd worry that if I cut it off, the yellow squishy part (rubber?) wouldn't have enough structure.

 

[RonStang6G]

It's the later. I'm sure you're probably thinking you could just cut the black plastic ring off right? While that is possible, for $60, I like the Steeda solution.

Or spend $70 for the Ford Performance Jounce Bumpers. I think these will improve the ride quality also. There is far less shock when you hit a bump than with the OEM bump stops. In any case anyone considering the Steeda Progressive Springs should not try to save money on the bump stops. It will take a lot of effort or money to correct the mistake of using the OEM bump stops after you have done the install.

 

[mikes2017gt]

Rather than start a new thread, I'll ask in here.

My car is a 2017 GT Premium, non performance pack. Current suspension mod is the strut tower/k-brace and that's it.

I'm considering the Pro Action Non-Adjust shocks/struts (PN 555-8150) and the Prog springs (PN 555-8210). Is it recommended that I also get the camber plates (front? rear? both?) and what about bump stops? Are these the Ford Perf bump stops you guys recommend? https://performanceparts.ford.com/part/M-5570-B

What about the stock sways and end links?

My driving style is "spirited driving on public roads" and NVH is important to me as I'm in my car 2 hours a day, minimum.

Thanks very much.

 

[jbailer]

That all sounds good but I would go with the Steeda bump stops.

 

[Legionofone]

Rather than start a new thread, I'll ask in here.

My car is a 2017 GT Premium, non performance pack. Current suspension mod is the strut tower/k-brace and that's it.

I'm considering the Pro Action Non-Adjust shocks/struts (PN 555-8150) and the Prog springs (PN 555-8210). Is it recommended that I also get the camber plates (front? rear? both?) and what about bump stops? Are these the Ford Perf bump stops you guys recommend? https://performanceparts.ford.com/part/M-5570-B

What about the stock sways and end links?

My driving style is "spirited driving on public roads" and NVH is important to me as I'm in my car 2 hours a day, minimum.

Thanks very much.

I would go with that and add the steeda bump stops. Sways do a TON for the handling and don't affect much as far as NVH

 

[mikes2017gt]

I would go with that and add the steeda bump stops. Sways do a TON for the handling and don't affect much as far as NVH

Thanks for the help. So, the factory sways will be OK with the Steeda springs and shocks? I very much want all the parts to work together.

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