Xmas special on our Z and G Diff and Sub frame bushing sets
#1
Xmas special on our Z and G Diff and Sub frame bushing sets
Free Shipping till Jan. 1st on any purchase of our bushing sets for the 350z and G35. We offer both a OEM height bushing and a raised bushing for the subframe. The raised busing really helps with the roll center on any lowered vehicle and can cure many ill handling characteristics experienced after lowering your car.
Standard height bushings
Raised height bushings (raises your subframe for lowered cars)
Differential bushings
Link to the page
http://www.sikky.com/suspension_high...nufacturer.php
Sikky bushing sets will make great stocking stuffers!
(free shipping applies to the lower 48 states only, call for out of country shipments)
Standard height bushings
Raised height bushings (raises your subframe for lowered cars)
Differential bushings
Link to the page
http://www.sikky.com/suspension_high...nufacturer.php
Sikky bushing sets will make great stocking stuffers!
(free shipping applies to the lower 48 states only, call for out of country shipments)
#2
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How much to the subframe bushings change the driveshaft angle ?
#7
Last day for free shipping on our bushing sets!!!!!!!! You won't be able to call the order in so go to our website and buy online.
direct link
http://www.sikky.com/suspension_high...nufacturer.php
direct link
http://www.sikky.com/suspension_high...nufacturer.php
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#8
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If you were to install the raised suframe bushings and lower the Z to same Fender lip to ground clearance, wouldn't that make the negative camber on the rear wheel more negative?
#9
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less neg camber
#10
Correct! this is one of the reasons why this is a good modification to do on a lowered Z/G or any car. If you picture a Z at stock ride height the control arms are typically level with the ground or parallel. When you lower it they angle upwards. This does all sorts of nasty stuff to the suspension geometry the farther you get away from this neutral or OEM position. We have measured on average for every one inch of travel your camber goes 1 deg. negative. When a car that is setup to be running at a certain camber and this figure isn't factored in to the equation you can think your running the right camber but in reality your running way more neg. camber when cornering. This can be determined by monitoring the wear on your tires and corrected but this is mainly for track cars. These subframe bushings help bring the suspension closer to OEM position when lowered. Ideally if you could get it back to stock control arm positions when lowered then you would be loving life. Unfortunately there just isn't any more room to move the subframe up, only other option is changing out hubs/spindles that move the arms back to the parallel position when at the new ride height. Sorry for the long winded response!
#12
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It will improve the roll center by .4 inch. With a 1.5 inch drop it will be great. 2.5 inch drop, doubt you really care about handling.
#13
I recommend using a handy little trick that I've been using for over a decade when initially setting up a suspension. This is basically to check if your bottoming your suspension out and see what the range of travel. Take a zip tie and put it around the shock/strut shaft on top of the bump stop. Go drive around and throw the car through some corners. Come back and see where your zip ties are now. If they are pushed all the way up into the mounts then you are too low. Now, I understand that probably half the people out there are lowering the car for the aggressive look, so this probably does not matter to them, but for the few that really want it to handle right this is an extremely important step that should be done before doing anything else.
#14
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Thanks, are there any negative effects to installed the raised bushings aside from NVH? does it shorten suspension travel or increase it? I'm having a hard time visualizing what is changed by installing the raised bushings.
Last edited by BrazenZ; 01-03-2011 at 06:38 AM.
#15
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That is a dependant on shock length, tire height ( added travel is nothing if you have hard parts hitting the ground) offset ie do you have the clearance? Etc etc. These will be on my race car shortly after I comb the rules. Very worth it, look at Fontana Nissan 350z build they did the same thing, but they also did the front.
#16
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Correct! this is one of the reasons why this is a good modification to do on a lowered Z/G or any car. If you picture a Z at stock ride height the control arms are typically level with the ground or parallel. When you lower it they angle upwards. This does all sorts of nasty stuff to the suspension geometry the farther you get away from this neutral or OEM position. We have measured on average for every one inch of travel your camber goes 1 deg. negative. When a car that is setup to be running at a certain camber and this figure isn't factored in to the equation you can think your running the right camber but in reality your running way more neg. camber when cornering. This can be determined by monitoring the wear on your tires and corrected but this is mainly for track cars. These subframe bushings help bring the suspension closer to OEM position when lowered. Ideally if you could get it back to stock control arm positions when lowered then you would be loving life. Unfortunately there just isn't any more room to move the subframe up, only other option is changing out hubs/spindles that move the arms back to the parallel position when at the new ride height. Sorry for the long winded response!
These pictures may help you visualize what sikky is saying about the rear arms angling upwards when lowered!
This guy has lowered his car and you can see his crappy circuit sport toe arms pointing up big time:
The comments on the pictures are because i plan on adding them to my suspension 101 thread, but just haven't yet...
So, to recap, raising the subframe with reduced height bushings, then raises the mounting point of the arms on the car side, versus the wheel side and thus gets your suspension geometry back where you want it...
-J
Last edited by JasonZ-YA; 01-04-2011 at 07:41 AM.
#17
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That is a dependant on shock length, tire height ( added travel is nothing if you have hard parts hitting the ground) offset ie do you have the clearance? Etc etc. These will be on my race car shortly after I comb the rules. Very worth it, look at Fontana Nissan 350z build they did the same thing, but they also did the front.
-J
Last edited by JasonZ-YA; 01-04-2011 at 07:56 AM.
#19
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See the rear sub frame is mounted to the car via 4 downward pointing STUDS...so the sub frame has to be dropped in order to install these bushings.
Some insight of how its done here in this pic:
Link here:
https://my350z.com/forum/8525712-post19.html
-J
Last edited by JasonZ-YA; 01-04-2011 at 10:13 AM.