Bilstein B14 vs KW V1
#21
Club Moderator
the Hot Spot
the Hot Spot
iTrader: (1)
I am not sure which set of Bilstein 1upZ purchased but the front on my PSS10's can go a little bit lower from my current setting... any lower, I would rub. I'm assuming all Bilstein coilovers have the same height adjustment range.
EDIT:
Wheel: 19X9.5/10.5
Tires: 255/35/19 & 285/35/19
EDIT:
Wheel: 19X9.5/10.5
Tires: 255/35/19 & 285/35/19
Last edited by stogey420time; 03-22-2016 at 09:24 AM.
The following 2 users liked this post by stogey420time:
DesertSleeper (04-12-2016),
terrasmak (03-22-2016)
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DesertSleeper (04-12-2016)
#24
Registered User
iTrader: (2)
Just a bit of a rehash on the preload thing.....
When I put coil overs on my car, both the front and rear shocks had more travel than the fully decompressed springs. So gravity was the only thing loading the springs. It *looks* like the helper spring in the pic is just there to keep everything lined up when it gets unloaded.
If they use a spring that's too long or a shock that is too short, I guess preload could become an issue.
When I put coil overs on my car, both the front and rear shocks had more travel than the fully decompressed springs. So gravity was the only thing loading the springs. It *looks* like the helper spring in the pic is just there to keep everything lined up when it gets unloaded.
If they use a spring that's too long or a shock that is too short, I guess preload could become an issue.
#25
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
Just a bit of a rehash on the preload thing.....
When I put coil overs on my car, both the front and rear shocks had more travel than the fully decompressed springs. So gravity was the only thing loading the springs. It *looks* like the helper spring in the pic is just there to keep everything lined up when it gets unloaded.
If they use a spring that's too long or a shock that is too short, I guess preload could become an issue.
When I put coil overs on my car, both the front and rear shocks had more travel than the fully decompressed springs. So gravity was the only thing loading the springs. It *looks* like the helper spring in the pic is just there to keep everything lined up when it gets unloaded.
If they use a spring that's too long or a shock that is too short, I guess preload could become an issue.
Let's use my car for an example, I always run 8 inch springs for adjustment sake but...... Here is where the fun begins.
I have to run a helper out back with a 6k spring. I have about 1/2 inch to make up. Well if I were to buy a longer spring, guess what, to get the same height I would have to run the same amount of preload. No matter what I would need a helper spring. Option 2, run a shorter shock, well it's already pretty short with limited travel. How practical is it to change shock length for every spring, not all all , then you would have to reset bump stops etc etc. Pain in the behind.
I'm probably going to end up running helper springs up front too. When I bump up to 18k front springs I will need them to get my ride height.
#26
Registered User
iTrader: (2)
When I put all 4 wheels in the air at once, the fronts have a ton of daylight between the springs and the top of the shock and the rears are totally decompressed withe 25lb/inch helper springs keeping them in the perches.
In my case, 8 inch springs might fit up front and still have room to unload at full droop, but the rears might always have load (be squeezed)....before the springs have to cary any of the car's weight.
This "squeezing" of the springs before thay are supporting the weight of the car....is this the preload you are talking about, or am I missing something?
I realize my stiff spring rates allow me to get away with short 6" springs that have a lot of room at full droop, but there is a lot of room on the front shocks for longer/softer springs and my ~400lb RSR's could unload at full droop in the back when they were on the car. (That massive rubber cone was keeping it in the perch under those conditions)
The picture of the front coilover setup looked like an uncompressed main spring and a mostly uncompressed helper. (Didn't look like the main spring had any load with the shock extended like that.)
I guess a 25lb/inch helper springs is technically preload but when mated to short and stiff springs I think they are just keeping the spring in place when it's unloaded.
In my case, 8 inch springs might fit up front and still have room to unload at full droop, but the rears might always have load (be squeezed)....before the springs have to cary any of the car's weight.
This "squeezing" of the springs before thay are supporting the weight of the car....is this the preload you are talking about, or am I missing something?
I realize my stiff spring rates allow me to get away with short 6" springs that have a lot of room at full droop, but there is a lot of room on the front shocks for longer/softer springs and my ~400lb RSR's could unload at full droop in the back when they were on the car. (That massive rubber cone was keeping it in the perch under those conditions)
The picture of the front coilover setup looked like an uncompressed main spring and a mostly uncompressed helper. (Didn't look like the main spring had any load with the shock extended like that.)
I guess a 25lb/inch helper springs is technically preload but when mated to short and stiff springs I think they are just keeping the spring in place when it's unloaded.
Last edited by Z1NONLY; 04-11-2016 at 08:09 PM.
#27
Super Moderator
MY350Z.COM
MY350Z.COM
iTrader: (8)
When I put all 4 wheels in the air at once, the fronts have a ton of daylight between the springs and the top of the shock and the rears are totally decompressed withe 25lb/inch helper springs keeping them in the perches.
In my case, 8 inch springs might fit up front and still have room to unload at full droop, but the rears might always have load (be squeezed)....before the springs have to cary any of the car's weight.
This "squeezing" of the springs before thay are supporting the weight of the car....is this the preload you are talking about, or am I missing something?
I realize my stiff spring rates allow me to get away with short 6" springs that have a lot of room at full droop, but there is a lot of room on the front shocks for longer/softer springs and my ~400lb RSR's could unload at full droop in the back when they were on the car. (That massive rubber cone was keeping it in the perch under those conditions)
The picture of the front coilover setup looked like an uncompressed main spring and a mostly uncompressed helper. (Didn't look like the main spring had any load with the shock extended like that.)
I guess a 25lb/inch helper springs is technically preload but when mated to short and stiff springs I think they are just keeping the spring in place when it's unloaded.
In my case, 8 inch springs might fit up front and still have room to unload at full droop, but the rears might always have load (be squeezed)....before the springs have to cary any of the car's weight.
This "squeezing" of the springs before thay are supporting the weight of the car....is this the preload you are talking about, or am I missing something?
I realize my stiff spring rates allow me to get away with short 6" springs that have a lot of room at full droop, but there is a lot of room on the front shocks for longer/softer springs and my ~400lb RSR's could unload at full droop in the back when they were on the car. (That massive rubber cone was keeping it in the perch under those conditions)
The picture of the front coilover setup looked like an uncompressed main spring and a mostly uncompressed helper. (Didn't look like the main spring had any load with the shock extended like that.)
I guess a 25lb/inch helper springs is technically preload but when mated to short and stiff springs I think they are just keeping the spring in place when it's unloaded.
#28
I am not sure which set of Bilstein 1upZ purchased but the front on my PSS10's can go a little bit lower from my current setting... any lower, I would rub. I'm assuming all Bilstein coilovers have the same height adjustment range.
EDIT:
Wheel: 19X9.5/10.5
Tires: 255/35/19 & 285/35/19
EDIT:
Wheel: 19X9.5/10.5
Tires: 255/35/19 & 285/35/19
#29
Looking at your tire sizes now it makes more sense. Your running a larger than stock diameter tire up front and slightly smaller than stock in the rear. If you were to swap to the more popular 255/35 up front and 285/35 in the rear like Stogey u would have almost matching stock diameters and would be able to get an even drop without having opposite ride height limits from front to rear. It still looks pretty good though, how do u like the handling and ride quality? Get crazy on any twisties yet?
Last edited by DesertSleeper; 04-12-2016 at 12:43 AM.
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