Eibach Front & Rear lift springs + anti roll sway bars

[markboris]

Planning on installing the lift springs and sway bars this weekend.

Do you think a larger (taller) diameter tire is possible with the lift? Maybe 255/50R20 (also wider)?

Doesn't see that anyone has successfully changed tire circumference in forscan. Anybody know?

Also, how do you modify the TPMS values if I get higher load tires and want to run them at a lower pressure (for the same load)? Don't see the entry under BCM in the forscan Mach-E spreadsheet?

Thanks.

You can go with a larger diameter and wider tire without even lifting the car so you won't have issues after you lift it. You are limited to what size you can install on your OEM wheels.

You don't need to change the tire circumference in FORScan because you should not change your tire size more than 2% (3% MAX) and that is hardly a difference in FORScan. Not to mention, the Mach-E speedo seems to usually display about 1 mph faster than you are going in all the cars I have tested so when you put a larger diameter tire on it, you will be right where it should be and if you go to the max of 3% different, it will be about 1.5 mph slower and not worth changing in FORScan so that is why you haven't seen anyone do this.

For the TPMS values, you can easily change them in the BCM non as-built. Right now they are set to 39 all around and you can change them to whatever you want.

Sponsored

 

[Sully's First EV]

Thanks, Mark. Not sure there is a size that is taller within 3% at the 255 width. Prefer to stay with factory rims. The 255/50R20 is about 4%. Do you think it will reek havoc to have a tire that size?

 

[mkhuffman]

Thanks, Mark. Not sure there is a size that is taller within 3% at the 255 width. Prefer to stay with factory rims. The 255/50R20 is about 4%. Do you think it will reek havoc to have a tire that size?

I put 255/45s on my GT, and I am planning to lower it. It won't be an issue.

@markboris, the speedometer difference is annoying me. I have not played around with FORScan yet, but can I fix it? If so, I would like to do that. The difference is more than I expected.

 

[markboris]

I put 255/45s on my GT, and I am planning to lower it. It won't be an issue.

@markboris, the speedometer difference is annoying me. I have not played around with FORScan yet, but can I fix it? If so, I would like to do that. The difference is more than I expected.

Hey Mike, it can be adjusted but only a very little amount. I’ve done it on other Ford's but not the Mach-E because all my tire sizes have been within a 2% difference of OEM sizes which never amounts to more than 1.5 mph difference. I don’t have my car for two weeks as I left it at my parents house. I take their car when I bring them up to my home. Too much stuff to bring, so I can’t look into FORScan to give you specifics but I know it’s an easy adjustment in the BCM.

 

[4sallypat]

Thanks, Mark. Not sure there is a size that is taller within 3% at the 255 width. Prefer to stay with factory rims. The 255/50R20 is about 4%. Do you think it will reek havoc to have a tire that size?

Do show us when you get the lift and different tires.

I am looking at Rally E type rims and tires for my lifted Mach E.

 

[Krazed]

I have an AWD SR with NCM battery. What would happen if I did put the 1.5" lift springs on it? The Eibach people wouldn't confirm fitment.

 

[markboris]

I have an AWD SR with NCM battery. What would happen if I did put the 1.5" lift springs on it? The Eibach people wouldn't confirm fitment.

You can ask Eric (Rickless). We installed the Eibach lift springs on his AWD SR earlier this year. He had them on for a month then we installed the lowering springs. I believe Pat (4sallypat) also had the lift springs installed on his car: Here some posts you can read from Eric's install:

https://www.macheforum.com/site/thr...-anti-roll-sway-bars.32640/page-3#post-753169

https://www.macheforum.com/site/thr...-anti-roll-sway-bars.32640/page-4#post-753744

 

[Krazed]

Thanks @markboris. I reread those and this message from 4sallypat and it seems like it would be fine, maybe just extra lift. I'll see about giving it a try.

I didn't think I'd be lifting a Mustang instead of my Bronco, but here we are...

 

[4sallypat]

Thanks @markboris. I reread those and this message from 4sallypat and it seems like it would be fine, maybe just extra lift. I'll see about giving it a try.

I didn't think I'd be lifting a Mustang instead of my Bronco, but here we are...

Love mine after almost a year - total ride game changer for me - combined with the Eibach anti roll sway bars - has been a sports car performance machine with better ride, long distance travel confidence, and handling bumps, potholes, etc..

Eibach lift springs will fit as long as it's NOT: SR RWD NCM or Magneride suspension.

Contact Eibach R&D dept located in Corona, CA.
Michael Coulombe is who took mine in and tested out both lift and lowering springs while they had it for 4 days.
[email protected]

 

[giwu42]

@Ford Motor Company
I have been wondering when Ford will sell the Rally version’s springs at the parts department. Is the Rally springs softer since it is slightly taller?

I got the part numbers from Levittown Ford if you're interested
Front coil = RK9Z-5310-A
Rear coil = RK9Z-5560-A

I'm surprised to see that the rear coil is extremely expensive, quadruple the front spring

 

[Krazed]

Love mine after almost a year - total ride game changer for me - combined with the Eibach anti roll sway bars - has been a sports car performance machine with better ride, long distance travel confidence, and handling bumps, potholes, etc..

Eibach lift springs will fit as long as it's NOT: SR RWD NCM or Magneride suspension.

Contact Eibach R&D dept located in Corona, CA.
Michael Coulombe is who took mine in and tested out both lift and lowering springs while they had it for 4 days.
[email protected]

I went ahead with it late last week. It looks great, drives great, and no longer scrapes on our driveway. We'll see if I need the sway bars down the road...

 

[4sallypat]

I went ahead with it late last week. It looks great, drives great, and no longer scrapes on our driveway. We'll see if I need the sway bars down the road...

Great to hear!

The ride is so much improved and the increased angle of approach & departure helps so much with tall curbs and sidewalk aprons.

 

[MadCoWK]

@4sallypat did you do the Koni shocks too, or stick with stock?

I've got 3 in the back seat on most drives now, and it's past time to invest in solving the bounce back there.

 

[mkhuffman]

@4sallypat did you do the Koni shocks too, or stick with stock?

I've got 3 in the back seat on most drives now, and it's past time to invest in solving the bounce back there.

In my GT the oscillating bounce is reduced but the initial rebound from a bump is the same. I rarely have anyone back there but I still get complaints from my kids.

It is an improvement but not a solution. Sorry.

Sponsored