Gs300 handling improvements
03-24-19, 05:09 AM
#1
Driver
Thread Starter
Gs300 handling improvements
hello everyone. I am going to be starting on my aristo swap this spring and am doing suspension improvements as well. My goal is to have the car be competitive with an m5 bmw. Currently I have strut braces, blitz exhaust, ls400 brake conversion(to be installed), lastly, the car is sitting on 35ae 350z rims. I was wondering what you all suggest for improved spring rates for better handling. I’m looking at fortune auto coilovers. Here’s a pic of the car.
03-24-19, 01:51 PM
#2
On my Lexus first I did the poly bushings on all 4 sway bar mounts and it was a nice upgrade but once I put a Megan Racing front sway bar in, the front was very well planted, flat around the corners and steering felt much better too. I will probably do the Megan Racing rear sway bar in the future and what is nice about that one is that it has two spots to mount the end links to depending on your preference.
03-24-19, 02:43 PM
#3
On my Lexus first I did the poly bushings on all 4 sway bar mounts and it was a nice upgrade but once I put a Megan Racing front sway bar in, the front was very well planted, flat around the corners and steering felt much better too. I will probably do the Megan Racing rear sway bar in the future and what is nice about that one is that it has two spots to mount the end links to depending on your preference.
03-24-19, 08:41 PM
#4
https://www.clublexus.com/forums/sus...-bushings.html
Last edited by 8M6; 03-24-19 at 08:49 PM.
03-24-19, 09:33 PM
#5
Those bushings made a nice difference and I would recommend those to any GS owner. Body roll was greatly reduced and handling felt much firmer but you do feel the potholes a tab bit more since it is more stiffer. They also come with grease packets which was nice but my front sway bar was so rusted around the bushings that it was causing a light clucking noise over bumps so I had to change the sway bar out anyways or else I would have just left those 4 poly bushings in and called it a day.
03-25-19, 06:27 AM
#7
https://www.shopfigs.com/v3/2GS_SC43...s%20sway%20bar
FIGs has Superpro poly bushings. Really great support from him. I bought those for my TRD sway bar up front and got a Superpro rear bar since my TRD bar snapped. So far drives just as well as the TRD and its adjustable. The Superpro poly steering rack bushings will also help with the dead feeling when the wheels are centered and remove some slop
FIGs has Superpro poly bushings. Really great support from him. I bought those for my TRD sway bar up front and got a Superpro rear bar since my TRD bar snapped. So far drives just as well as the TRD and its adjustable. The Superpro poly steering rack bushings will also help with the dead feeling when the wheels are centered and remove some slop
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NexusD (08-06-19)
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03-25-19, 06:27 AM
#8
hello everyone. I am going to be starting on my aristo swap this spring and am doing suspension improvements as well. My goal is to have the car be competitive with an m5 bmw. Currently I have strut braces, blitz exhaust, ls400 brake conversion(to be installed), lastly, the car is sitting on 35ae 350z rims. I was wondering what you all suggest for improved spring rates for better handling. I’m looking at fortune auto coilovers. Here’s a pic of the car.
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SoCalSC4 (03-27-19)
03-26-19, 06:02 AM
#11
If you put some bigger sways, lower the car on some high quality suspension, upgrade the brakes, and upgrade the wheels and tires you're getting close. You still need to do a manual and GTE swap then you're pretty much there but that's over $15k in parts for sure
03-26-19, 06:14 AM
#12
Part of the improvement from replacing/upgrading the bushings is just from it being time to replace worn out components. By age and miles, there's bound to be some things that need attention. They also make poly control arm bushings that you'd probably be interested in if you had yours checked and likely find them to be bad. Would be a good time to replace ball joints if necessary etc. You'd be restoring the handling and then some with the upgraded bushings.
Coil-overs are by the most substantial suspension upgrade you can do and will make things like strut braces and sway bars feel obsolete. But if you want the thing to handle like its on rails, get your coil-overs and set them pretty stiff (make sure they are dampening adjustable as well as ride height), lower the center of gravity, but not VIP low, put on stiff sway-bars, and replace any worn out suspension components with poly bushings while your're at it, then get the car aligned. If you avoid lowing an extreme amount, you will go around just a degree in negative camber at each corner (which is a good thing for cornering) and not have to replace control arms for adjustable ones. You'll retain in spec alignment with just a little more negative camber and lower center of gravity. All good things.
What kind of tires are on the 350z rims? All things come down to where to rubber meets the road. Watch any time attack/road racers and the only thing in most cases that set the class are the type of tires they are allowed to use. Just remember, no suspension upgrade will do anything as good as a set of grippy tires! I'm a fan of the NTO5 for street use.
Coil-overs are by the most substantial suspension upgrade you can do and will make things like strut braces and sway bars feel obsolete. But if you want the thing to handle like its on rails, get your coil-overs and set them pretty stiff (make sure they are dampening adjustable as well as ride height), lower the center of gravity, but not VIP low, put on stiff sway-bars, and replace any worn out suspension components with poly bushings while your're at it, then get the car aligned. If you avoid lowing an extreme amount, you will go around just a degree in negative camber at each corner (which is a good thing for cornering) and not have to replace control arms for adjustable ones. You'll retain in spec alignment with just a little more negative camber and lower center of gravity. All good things.
What kind of tires are on the 350z rims? All things come down to where to rubber meets the road. Watch any time attack/road racers and the only thing in most cases that set the class are the type of tires they are allowed to use. Just remember, no suspension upgrade will do anything as good as a set of grippy tires! I'm a fan of the NTO5 for street use.
03-26-19, 08:13 AM
#14
Driver
Thread Starter
I’m doing ls400 brakes this summer. I have the gte vvti swap prices out and just have to wait for time to buy an engine(swap cost looks like $5k). The manual swap is in my plans but not for a while. I wanted an r154 or ar5 but finding one cheap and sourcing all the parts is like you said, “expensive.”
03-26-19, 09:57 AM
#15
Coil-overs are by the most substantial suspension upgrade you can do and will make things like strut braces and sway bars feel obsolete. But if you want the thing to handle like its on rails, get your coil-overs and set them pretty stiff (make sure they are dampening adjustable as well as ride height), lower the center of gravity, but not VIP low, put on stiff sway-bars, and replace any worn out suspension components with poly bushings while your're at it, then get the car aligned. If you avoid lowing an extreme amount, you will go around just a degree in negative camber at each corner (which is a good thing for cornering) and not have to replace control arms for adjustable ones. You'll retain in spec alignment with just a little more negative camber and lower center of gravity. All good things.
As far as lowering thats right on the money. I'm lowered about 1.5" and my at 0.5° camber front and 1.0° in the back with stock parts.
Another thing is the rear of the car is very loose so a rear strut tower bar makes a huge difference in how the car drives