Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

UP vs HR Lowering Springs

mpegripper

Member
Oct 30, 2020
58
49
San Jose, Ca
Anyone have any comparisons with these on ride quality or extra stress they may or may not put on the shocks?

I've personally only done coilovers on my past cars, but I'm no longer going to the track and this is just for around town
 

MODEL+

Vendor
Oct 21, 2020
646
487
Portland, OR
Hi,

I tend to notice similar threads of xxx vs xxx lowering springs quite often around here.

Here is our stance on that topic and I hope people can reference from here on out.

If you insist, we prefer H&R.


Danny
 

MODEL+

Vendor
Oct 21, 2020
646
487
Portland, OR
wow, your pic of the front strut scares me...definitely no springs only on this car
Yeah, we don't say this just to milk more money by selling you coilovers. On other applications, we'd recommend lowering springs all day long, but these cars not so much. Time and time again we see people around here doing lowering springs and become dissatisfied, then have to do it all over again with coilovers.

Danny
 
  • Like
Reactions: TFSMotorsport

mpegripper

Member
Oct 30, 2020
58
49
San Jose, Ca
honestly, coilovers are way easier to install anyway, so i'm not too worried about the cost. they also provide a tangible benefit over stock. have you noticed that camber goes off a lot when lowering these cars 1.2-1.5 inches? i assume toe is fully adjustable too and can be accounted for on a mostly stock car with just the mild drop.

just have to convince myself that MCS with remote reservoir is NOT needed since that's what I've put on cars in the past (for track use of course).
 

MODEL+

Vendor
Oct 21, 2020
646
487
Portland, OR
honestly, coilovers are way easier to install anyway, so i'm not too worried about the cost. they also provide a tangible benefit over stock. have you noticed that camber goes off a lot when lowering these cars 1.2-1.5 inches? i assume toe is fully adjustable too and can be accounted for on a mostly stock car with just the mild drop.

just have to convince myself that MCS with remote reservoir is NOT needed since that's what I've put on cars in the past (for track use of course).
These cars actually do pretty well in the camber / toe department when lowering.

Toe will be adjustable back to factory spec without the need for aftermarket arms.
Camber is averaging around -1.5 degree for our car that is dropped about 2". Some BMWs for example, will come with more negative camber than this from factory.


Danny
 

mpegripper

Member
Oct 30, 2020
58
49
San Jose, Ca
got it, thanks...ya my bmw m3 was set at -3.5 up front, but that was on purpose as it was a track car...

-1.5 isn't bad at all and probably preferable to me anyway...in the end toe kills tires much much faster than camber anyway
 
  • Like
Reactions: MODEL+

MODEL+

Vendor
Oct 21, 2020
646
487
Portland, OR
got it, thanks...ya my bmw m3 was set at -3.5 up front, but that was on purpose as it was a track car...

-1.5 isn't bad at all and probably preferable to me anyway...in the end toe kills tires much much faster than camber anyway
You got the right idea.
In our use case, we actually take natural negative camber to our advantage ;)

Image.jpeg


Danny
 

P-Lo801

Member
Apr 19, 2019
522
273
Sacramento, CA
I rode in a buddy's P3 with H&R springs with three ppl for over a hundred miles, with relatively rough surfaces and the occasional dips and potholes throughout the trip. I can't speak to how they compare to UP springs, but having MPP comfort coilovers on mine, they rode surprisingly well the entire time, considering they were springs and not necessarily matched to the oem shocks.
 

subieworx

Member
May 29, 2020
78
36
ohio
Riding on bump stops is not a bad thing IF setup properly. Most cars use the bump stops as an active part of the suspension travel to increase spring rate. This is something that was pioneered by BMW back in the 90's as a way to use soft main springs, but still have a car that does not roll, squat or dive heavily upon inputs. Every BMW car since has used bump stops as additional springs to aid in the purpose of the main springs.

The issue comes with there is an underdamped (not dampened) situation with a shock from the factory (model 3) that then has lowering springs installed on it. This compresses the bump stop at static ride height increasing the spring rate heavily to a level that is not controllable by the factory damper.
 
  • Like
Reactions: MODEL+

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top