Spring comparison chart
Pro
Joined: Mar 2016
Posts: 535
Likes: 54
From: SF Bay Area
Curious if anyone has input on M030 alternatives for early 964s? I've not yet found anyone selling rear M030 springs for the rear of a '90 C4.
Since it is really the front that I'd like to lower a bit more, I was thinking maybe to just use the front M030 springs w/ OEM rear, but don't want to disrupt the balance of the car too severely. Currently with Bilstein B6, so limited adjustability threads. This is for a street driven only car, almost daily driver type duties with occasional spirited club drives.
Since it is really the front that I'd like to lower a bit more, I was thinking maybe to just use the front M030 springs w/ OEM rear, but don't want to disrupt the balance of the car too severely. Currently with Bilstein B6, so limited adjustability threads. This is for a street driven only car, almost daily driver type duties with occasional spirited club drives.
Rennlist Member
Joined: Oct 2003
Posts: 24,103
Likes: 3,208
From: New Jersey
Curious if anyone has input on M030 alternatives for early 964s? I've not yet found anyone selling rear M030 springs for the rear of a '90 C4.
Since it is really the front that I'd like to lower a bit more, I was thinking maybe to just use the front M030 springs w/ OEM rear, but don't want to disrupt the balance of the car too severely. Currently with Bilstein B6, so limited adjustability threads. This is for a street driven only car, almost daily driver type duties with occasional spirited club drives.
Since it is really the front that I'd like to lower a bit more, I was thinking maybe to just use the front M030 springs w/ OEM rear, but don't want to disrupt the balance of the car too severely. Currently with Bilstein B6, so limited adjustability threads. This is for a street driven only car, almost daily driver type duties with occasional spirited club drives.
I do have a set of H&R supercup I am willing to let go if anyone is interested. Long since NLA.
Pro
Joined: Mar 2016
Posts: 535
Likes: 54
From: SF Bay Area
Thanks for the input.
My understanding is that the Euro/RoW M030 springs lower ~30mm.
https://www.elephantracing.com/porsc...rings-for-964/
My understanding is that the Euro/RoW M030 springs lower ~30mm.
https://www.elephantracing.com/porsc...rings-for-964/
Rennlist Member
Joined: Oct 2003
Posts: 24,103
Likes: 3,208
From: New Jersey
Thanks for the input.
My understanding is that the Euro/RoW M030 springs lower ~30mm.
https://www.elephantracing.com/porsc...rings-for-964/
My understanding is that the Euro/RoW M030 springs lower ~30mm.
https://www.elephantracing.com/porsc...rings-for-964/
I have conflicting info. The RoW cars were all 10mm lower than US spec. The RS was 40mm lower than RoW spec and 50MM lower than US spec. I believe but don't hold me to it that the RoW M030 and turbo 3.6 Springs are similar or one in the same. That would put the ride height at 30mm lower in the front and 20mm lower in the rear. The springs shown are the turbo 3.6 Springs. Note 965 part preffix.I thought you were talking the US spec M030 springs which are at standard height and offer a stiffer spring and progressive rear but still have the 4x4 look.
Pro
Joined: Mar 2016
Posts: 535
Likes: 54
From: SF Bay Area
Hard to say. Old thread and my poor old brain is being taxed. I have conflicting info. The RoW cars were all 10mm lower than US spec. The RS was 40mm lower than RoW spec and 50MM lower than US spec. I believe but don't hold me to it that the RoW M030 and turbo 3.6 Springs are similar or one in the same. That would put the ride height at 30mm lower in the front and 20mm lower in the rear. The springs shown are the turbo 3.6 Springs. Note 965 part preffix.
I thought you were talking the US spec M030 springs which are at standard height and offer a stiffer spring and progressive rear but still have the 4x4 look.
I have conflicting info. The RoW cars were all 10mm lower than US spec. The RS was 40mm lower than RoW spec and 50MM lower than US spec. I believe but don't hold me to it that the RoW M030 and turbo 3.6 Springs are similar or one in the same. That would put the ride height at 30mm lower in the front and 20mm lower in the rear. The springs shown are the turbo 3.6 Springs. Note 965 part preffix.I thought you were talking the US spec M030 springs which are at standard height and offer a stiffer spring and progressive rear but still have the 4x4 look.
Pro
Joined: Mar 2016
Posts: 535
Likes: 54
From: SF Bay Area
