Energy Suspension bushing replacement!
Ive read a couple mentions lately of the front LCA horizontal bushing not being "happy" with the offset PSRS. Is it not enough to worry about? Looks like the baller setup is to put a spherical up there, but is there anything to worry about with poly? Any tips to install it?
Got all this stuff on the way and looking forward to it. Already done the rear end ES kit pieces last year, just need to tackle the front along with PSRS and RCK this year.
Got all this stuff on the way and looking forward to it. Already done the rear end ES kit pieces last year, just need to tackle the front along with PSRS and RCK this year.
On the ES bushings for those interested, the BLK kit is graphite impregnated and will keep the squeaking down. I also used the psrs kit zero offset to help with the front bushing replacements--there are some older threads that suggest the spherical bushing (stock) in the arm is better then a poly bushing (less deflection) so I went psrs. Pressing those bushings was a real pain!
Ideally, that front LCA bushing would be spherical. I believe only Robi and Cusco currently offer a spherical front LCA bushing.
I was planning on getting the Cusco bushing this year but I put off my next round of suspension upgrades for next off season while I do safety and Aero upgrades this year.
I was planning on getting the Cusco bushing this year but I put off my next round of suspension upgrades for next off season while I do safety and Aero upgrades this year.
Call it what you will, its also not a solid bushing--but thats all secondary anyway..
for those interested in the psrs--here is a link to the thread.
https://www.evolutionm.net/forums/ve...rs-review.html
for those interested in the psrs--here is a link to the thread.
https://www.evolutionm.net/forums/ve...rs-review.html
Im confused...I dont know what the technical term would be but its simply a standard bushing with a metal sleeve through it. A spherical in my mind has articulation in 360 degrees like with a set of camber plates for example or better yet the Perrin PSRS that was just mentioned.
Vorshlag plates add caster by moving the top of the strut towards the back of the car. This has the effect of bringing the front wheels closer to the back of the wheel well which is one of the first limitations of larger/wider tires.
The positive offset spherical bushing rotates the LCA towards the front of the car moving the tire forward in the wheel well. This creates more clearance for wider/taller tires.
Doing one and not doing the other, does not make much sense. The only downside to the positive offset rear bushing is that it creates a "less happy" angle on the front bushing making it hard to install/remove and also creating a bit of additional unintended suspension stiffness and stress on the LCA.
My top plates are caster adjustable and I set them for as much caster as possible without rubbing on the back of the wheel well. As in, I keep adding caster until I only slightly rub at full lock on both wheels.
The positive offset spherical bushing rotates the LCA towards the front of the car moving the tire forward in the wheel well. This creates more clearance for wider/taller tires.
Doing one and not doing the other, does not make much sense. The only downside to the positive offset rear bushing is that it creates a "less happy" angle on the front bushing making it hard to install/remove and also creating a bit of additional unintended suspension stiffness and stress on the LCA.
My top plates are caster adjustable and I set them for as much caster as possible without rubbing on the back of the wheel well. As in, I keep adding caster until I only slightly rub at full lock on both wheels.
FWIW the Vorshlag plates are also offset to create additional camber.
Im confused...I dont know what the technical term would be but its simply a standard bushing with a metal sleeve through it. A spherical in my mind has articulation in 360 degrees like with a set of camber plates for example or better yet the Perrin PSRS that was just mentioned.
yeah, Im not sure about what meckert is saying either. If it was spherical from the factory, you wouldn't see so many people replacing it with poly.
The inner and outer rear LCA bushings are spherical, but do look sort of like a rubber bushing. But I think the front LCA horizontal bushing is rubber, I just asked because of meckert's post above.
yeah, Im not sure about what meckert is saying either. If it was spherical from the factory, you wouldn't see so many people replacing it with poly.
The inner and outer rear LCA bushings are spherical, but do look sort of like a rubber bushing. But I think the front LCA horizontal bushing is rubber, I just asked because of meckert's post above.
The inner and outer rear LCA bushings are spherical, but do look sort of like a rubber bushing. But I think the front LCA horizontal bushing is rubber, I just asked because of meckert's post above.
Here is a link to one of those earlier threads-- same conclusion. Trying to be informative and keep others from making changes that decrease performance.
https://www.evolutionm.net/forums/ev...eplacment.html
What ever your choice good luck and I'll check out here.
^ Yes you are correct the large donut shaped bushing should not be replaced unless its with another spherical unit such as the Perrin ones or the Whiteline piece. You confused me because the horizontal bushing I thought was referring to the inner LCA bushing where the bolt goes in horizontally. But yes we are in agreement that the "donut" large one should not be replaced with poly.
What are you using for that large bushing? There still does not appear to be a consensus as to which side the spacer should be on. In evolutionary's thread that you linked he originally had it on the bottom and said he was going to try a couple different setups but it hasnt been documented.
What are you using for that large bushing? There still does not appear to be a consensus as to which side the spacer should be on. In evolutionary's thread that you linked he originally had it on the bottom and said he was going to try a couple different setups but it hasnt been documented.
Sorry if your confused, not my intention. Early on in this forum there were several threads on this and the conclusion was not to replace the larger rear front LCA bushing with the ES/poly bushing that it was a down grade due to design.. I guess other have since done it and thinking it was a good deal.. if you use the PSRS kit, thats another story and certainly an upgrade..
Here is a link to one of those earlier threads-- same conclusion. Trying to be informative and keep others from making changes that decrease performance.
https://www.evolutionm.net/forums/ev...eplacment.html
What ever your choice good luck and I'll check out here.
Here is a link to one of those earlier threads-- same conclusion. Trying to be informative and keep others from making changes that decrease performance.
https://www.evolutionm.net/forums/ev...eplacment.html
What ever your choice good luck and I'll check out here.
Correct, placing the spacer on the top offers anti-lift and the bottom does not. Folks that I've talked to speak highly of the Perrin piece but there is not a consensus as to which way is the preferred installation method.