Stiffer, more stable but not lower.

[dzeleski]

52/48 is what I've read.

AFE themselves recommend going to full stiff on the front and full soft on the rear when you put in both bars, so I don't think going to a slightly stiffer front bar alone (as a starting point like I mentioned) would add a ton of understeer.

I still wouldnt classify that has front heavy. Also aFe is trying to sell parts to people so of course they are going to recommend needing bars. That being said...

• Ø29mm (1.125") Front Sway Bar, 3-Way Adjustment

405 lbs/in (134% Stiffer than Stock)
455 lbs/in (163% Stiffer than Stock)
510 lbs/in (195% Stiffer than Stock)

• Ø22mm (0.875") Rear Sway Bar, 3-Way Adjustment

130 lbs/in (155% Stiffer than Stock)
145 lbs/in (184% Stiffer than Stock)
160 lbs/in (214% Stiffer than Stock)

510 lbs is max stiff or 195% stiffer in front, max soft for the rear is 130lb or 155% stiffer then stock which is pretty balanced. Probably a safe slightly understeery setting to get used to which is why they recommend it.

So with this bar if you went just the max soft for the front you are 134% stiffer then stock. Thats a pretty big change to not match it at the rear. You wouldnt just blindly change your front spring rate without considering the rears. If you do both bars it makes perfect sense, but if you dont wanna do both bars I personally dont think its worth doing just the front.

Edit: Front OEM bar would be around 300LBs, min setting on the front is 100lbs more at 405lbs.

Sponsored

 

[razorlab]

I run a front swaybar with OEM rear. It greatly added front stability and reduced front end float on track. Coupled with 550lb front and 500lb rear (true coilover), the car feels great on track. Would be perfectly fine on the street. A good amount of fast track guys do this. Real world examples, not someone doing improper theoretical math on a forum.

I am still able to steer the car with throttle and the car still feels like a short wheel base RWD car, just way more stable.

It's also a super easy install. Takes longer to take the undertray off than installing the bar.

Disclaimer: I run a square wheel/tire setup so people that still run a staggered setup may have different experiences.

Disclaimer 2: I run pretty track centric alignment settings. -3.7 camber front, -2.4 camber rear, 0 toe front / 0.22 toe-in total rear. So a street setup may have a different experience.

 

[Lordhowe]

On a front heavy car like this a front bar will give you the most bang for the buck in terms of roll stiffness. Sure you may add a bit more understeer but on a tail happy car like this it's not a huge deal, it's easier to drive around push in sweepers than it is to drive around tail-happiness in transitions.

I very much agree with this. I only installed a front sway bar and run it in the middle setting. The car actually feels pretty balanced at the track.

 

[suicidaleggroll]

• Ø29mm (1.125") Front Sway Bar, 3-Way Adjustment

405 lbs/in (134% Stiffer than Stock)
455 lbs/in (163% Stiffer than Stock)
510 lbs/in (195% Stiffer than Stock)

• Ø22mm (0.875") Rear Sway Bar, 3-Way Adjustment

130 lbs/in (155% Stiffer than Stock)
145 lbs/in (184% Stiffer than Stock)
160 lbs/in (214% Stiffer than Stock)

405 lbs is 34% stiffer than stock, not 134%. You could say 134% as stiff as stock, but not 134% stiffer. So front sway on soft with stock rear ultimately makes the front 34% stiffer with no change to the rear. Meanwhile front sway on stiff and rear sway on soft makes the front 95% stiffer and the rear 55% stiffer, which is pretty close to the same relative change.

 

[dzeleski]

405 lbs is 34% stiffer than stock, not 134%. You could say 134% as stiff as stock, but not 134% stiffer. So front sway on soft with stock rear ultimately makes the front 34% stiffer with no change to the rear. Meanwhile front sway on stiff and rear sway on soft makes the front 95% stiffer and the rear 55% stiffer, which is pretty close to the same relative change.

I just copied that straight from aFe, I agree its a weird way of writing it though. At first I thought they were trying to say it was more then double but I believe they are just saying its 34% more stiff.

https://afepower.com/afe-power-440-721001-l-afe-control-sway-bar-set

 

[suicidaleggroll]

I just copied that straight from aFe, I agree its a weird way of writing it though. At first I thought they were trying to say it was more then double but I believe they are just saying its 34% more stiff.

https://afepower.com/afe-power-440-721001-l-afe-control-sway-bar-set

Sorry I didn't realize you just copied their text verbatim, they should really fix that

 

[domingo]

I'm thinking good that AS41-82-089-02-FA sway bar is 25mm instead of 29mm? Why they stared to made them thinner?

 

[spdandpwr]

Surprised nobody mentioned adding the SPL suspension parts here. They do much to decrease the slop in the suspension components. There was a "tuned" Supra that just had SPL parts, new wheels, and alignment and a catback and the reviewer (I think it was an established, relatively unbiased channel, btw)said the car was night and day different. BTW, if anyone knows what video I'm referring to, please link me to it...been trying forever to track it down and want to find the wheels they're using.

 

[suicidaleggroll]

Surprised nobody mentioned adding the SPL suspension parts here. They do much to decrease the slop in the suspension components. There was a "tuned" Supra that just had SPL parts, new wheels, and alignment and a catback and the reviewer (I think it was an established, relatively unbiased channel, btw)said the car was night and day different. BTW, if anyone knows what video I'm referring to, please link me to it...been trying forever to track it down and want to find the wheels they're using.

This one?
https://www.caranddriver.com/review...formance-2021-toyota-supra-30-by-the-numbers/

 

[underdonk]

Surprised nobody mentioned adding the SPL suspension parts here. They do much to decrease the slop in the suspension components. There was a "tuned" Supra that just had SPL parts, new wheels, and alignment and a catback and the reviewer (I think it was an established, relatively unbiased channel, btw)said the car was night and day different. BTW, if anyone knows what video I'm referring to, please link me to it...been trying forever to track it down and want to find the wheels they're using.

What SPL parts would you recommend (both components and manufacturer)? I know there are some posts about this on the forum, but things change over time and I'd like to get a better idea about what people are doing now.

 

[spdandpwr]

This one?
https://www.caranddriver.com/review...formance-2021-toyota-supra-30-by-the-numbers/

Yes! you are my hero

 

[spdandpwr]

What SPL parts would you recommend (both components and manufacturer)? I know there are some posts about this on the forum, but things change over time and I'd like to get a better idea about what people are doing now.

Read the article linked above. It gives you a good sense on how those suspension components added to the capability of the car

 

[underdonk]

Read the article linked above. It gives you a good sense on how those suspension components added to the capability of the car

Hey look at that! Sorry - I missed it, obviously. Appreciate it.

EDIT: Hey, I just noticed SPL Parts sells solid diff mounts. I'm getting the Twisted Tuning transmission mounts (I wish they would release their motor mounts to the public!) installed at the beginning of July. I think I'll order a set of the diff mounts and have them installed along with it since they'll be taking the car apart. Anyone here running them? Haven't noticed anyone mentioning them before.

 

[suicidaleggroll]

Hey look at that! Sorry - I missed it, obviously. Appreciate it.

EDIT: Hey, I just noticed SPL Parts sells solid diff mounts. I'm getting the Twisted Tuning transmission mounts (I wish they would release their motor mounts to the public!) installed at the beginning of July. I think I'll order a set of the duff mounts and have them installed along with it since they'll be taking the car apart. Anyone here running them? Haven't noticed anyone mentioning them before.

No need to wait on the transmission mounts, they take like 5 min to pop in and don't require any special tools. They're probably the easiest install I've done on the car, other than CF overlay stickers. They're also fucking insane and I don't recommend them for anything that's going to be driven on the street.

 

[underdonk]

No need to wait on the transmission mounts, they take like 5 min to pop in and don't require any special tools. They're probably the easiest install I've done on the car, other than CF overlay stickers. They're also fucking insane and I don't recommend them for anything that's going to be driven on the street.

Really? Haven't jacked up the car and looked. A quick Google search doesn't yield any videos or instructions. Nothing on the SPL Parts website about installation. Have a pointer to a process I can look at to install them? In terms of their suitability for the street, as I joke about with my wife, I'm building a car that is fun to drive but not enjoyable to drive. ? It's just a fun street car/track car for me so nothing I'll have to live with on a daily basis. If I did, I for sure as hell wouldn't have the AWE Track Edition exhaust on it.

Sponsored