Fr/Rr solid bushing installed... amazing!
02-08-2010, 10:49 AM
#23
I'll be going through the process of swapping out the subframe next week as I have a couple of days free. I'll do my best to take pictures but I can't make any promises. It's not going to be easy to take pictures while doing this swap on jackstands while I stuff my 6'0, 255lb body under the car.
02-08-2010, 11:15 AM
#27
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So does the rear subframe have to be pulled to push in the new bushing? Just saw that mine ripped all around too.
This has got to be the cause of my car feeling squirly in the rear also. It just doesnt feel the same from new, and its just in the rear it feels like its all over the place.
This has got to be the cause of my car feeling squirly in the rear also. It just doesnt feel the same from new, and its just in the rear it feels like its all over the place.
02-08-2010, 12:04 PM
#30
I never installed the whiteline subframe parts to comment there however.
Last edited by Motormouth; 02-08-2010 at 12:06 PM.
02-08-2010, 08:04 PM
#32
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Thanks for the infos, this is on my to-do list. With 74K miles on my stock shocks and bushings, plenty of auto-x and some track days... my car feels kinda squishy. I'm hoping replacing all bushings and the shocks will tighten everything back up.
02-09-2010, 06:34 AM
#33
how would your rear feel squirrly?
yoru suspension hasnt changed, nor the mounting points of the subframe to the car.
The only thing that might be moving a few mm is your diff. Power of the mind is amazing.
yoru suspension hasnt changed, nor the mounting points of the subframe to the car.
The only thing that might be moving a few mm is your diff. Power of the mind is amazing.
So does the rear subframe have to be pulled to push in the new bushing? Just saw that mine ripped all around too.
This has got to be the cause of my car feeling squirly in the rear also. It just doesnt feel the same from new, and its just in the rear it feels like its all over the place.
This has got to be the cause of my car feeling squirly in the rear also. It just doesnt feel the same from new, and its just in the rear it feels like its all over the place.
02-09-2010, 07:08 AM
#34
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The suspension mounting points is one thing (though deflections in the subframe bushings through the diff do affect that), but more importantly, since this is rear wheel drive, how the power is transferred to the tires would certainly have an effect on how the rear end feels. Deflection of the diff bushings and misalignment of the drive/half shafts will cause fluctuations in torque being applied to the tire, which could certainly cause erratic behavior under throttle. And in the more extreme case, it will create wheel hop.
02-10-2010, 10:31 AM
#35
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as far as installing the rear diff bushings go, I would think you coule get away with just removing the pumpkin and leaving the diff rack in place. Use a c-clamp or a specially put toegther bolt, washer, nut combo to pull the bushings into place. Getting the old ones out is hard no matter how you slice it. I would think the ol'set em on fire method may not be ideal for the aluminum diff racks though. I've even heard people frown upon it with the steel systems too.
02-10-2010, 11:12 AM
#36
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Ive read alot of posts abot " Do I need to replace my bushings" but theres not much about what it really drives like afterwards, other than talk of wheel hop etc.
I have about 70-ish k miles on the car, just did stance coilovers lx, and all the other standard fix ups... but the car just seemed clunky, and the rear felt really unstable and had alot of wiggle. Just felt like it wasnt a real sports car yet.
I knew my rear bushing was out because if I change gears quickly and let the clutch out fast, I could hear a clunk in the rear end..and I saw it as well when I did my exhaust.
DUDE.... it is sooooooo nice having this mod done, I cant even tell you. Satisfaction of driving and ownership has increased like ten fold seriously.
Its not really louder per se, you can hear a bit of mechancal noise just when you start from a dead stop, but for the most part, its pretty darn NOT noticeable.
Its far from a supercharger whine as they ssay... its 50 times quieter than that, so fear not, and theres really no added vibration.
BUT the handling is RAZOR sharp now, and it finally feels like it does to drive my friends 2007 996 Porsche 911.
HUUUGE shout out to Vitaly at Pitstop Performance and Coz at Concept Z Performance for the HUGE hook up on the labor, and to a job well done.
Bottom line, this fixes all the things you never knew were wrong with your hi mile 350z, period.
The shifter shakes a hell of alot less on downshifting too.
It is literally like driving a brand new car again. Super tight, quiet, no squeaks, rattles, clunks, and it is a bit "faster" by butt dyno since there is no nasty lag while the engine and drivetrain use the power to simply move the differential around before actually moving your tires.
If you spend a grand on coilovers but dont do this mod, you have wasted your money. Its fantastic. BTW, I used SPL from and rear bushings.
I have about 70-ish k miles on the car, just did stance coilovers lx, and all the other standard fix ups... but the car just seemed clunky, and the rear felt really unstable and had alot of wiggle. Just felt like it wasnt a real sports car yet.
I knew my rear bushing was out because if I change gears quickly and let the clutch out fast, I could hear a clunk in the rear end..and I saw it as well when I did my exhaust.
DUDE.... it is sooooooo nice having this mod done, I cant even tell you. Satisfaction of driving and ownership has increased like ten fold seriously.
Its not really louder per se, you can hear a bit of mechancal noise just when you start from a dead stop, but for the most part, its pretty darn NOT noticeable.
Its far from a supercharger whine as they ssay... its 50 times quieter than that, so fear not, and theres really no added vibration. BUT the handling is RAZOR sharp now, and it finally feels like it does to drive my friends 2007 996 Porsche 911.
HUUUGE shout out to Vitaly at Pitstop Performance and Coz at Concept Z Performance for the HUGE hook up on the labor, and to a job well done.
Bottom line, this fixes all the things you never knew were wrong with your hi mile 350z, period.
The shifter shakes a hell of alot less on downshifting too.
It is literally like driving a brand new car again. Super tight, quiet, no squeaks, rattles, clunks, and it is a bit "faster" by butt dyno since there is no nasty lag while the engine and drivetrain use the power to simply move the differential around before actually moving your tires.
If you spend a grand on coilovers but dont do this mod, you have wasted your money. Its fantastic. BTW, I used SPL from and rear bushings.
Do you have any pics of them installed. I think it will help the people who want to do this.
02-11-2010, 05:54 AM
#37
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https://my350z.com/forum/suspension/...wheel-hop.html
02-11-2010, 11:55 PM
#39
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http://www.jscspeed.com/350z/suspens...p_bushings.htm
Are these all the bushings in our car? I have about $300 I will be about to spend on this and am trying to determine how best to spend my money. My Z has 74K miles with stock suspension... it feels all squishy after all my track days and a couple unrelated crashes.
Also can most of these be pressed with a vice? Or will I have to take them to a shop to have them pressed?
Realistically how much do I need to spend here to get my ride quality nice and tight again?
Are these all the bushings in our car? I have about $300 I will be about to spend on this and am trying to determine how best to spend my money. My Z has 74K miles with stock suspension... it feels all squishy after all my track days and a couple unrelated crashes.
Also can most of these be pressed with a vice? Or will I have to take them to a shop to have them pressed?
Realistically how much do I need to spend here to get my ride quality nice and tight again?
Last edited by gregom; 02-11-2010 at 11:59 PM.
