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Old 10-19-2014, 09:30 AM   #253
ofuts
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Hi guys
I want to fit some 18*9,5 concave wheels (didnt decide yet, might even go with 18*9 if possible becouse i dont like the poke) and 255/40/18 AD08s at all corners, so i need coilovers.
This is my daily car, i will go to track from time to time but just for fun, not going to push the car too much. I feel ride hardness is just fine with stock suspension and with stock 205/55/16 tires, roads here are not so good btw.
I am planning to lower the car about 1". I have a limited budget i am not a pro, so which coilover would you recommend for a comfortable ride similar to stock? I have a limited budget can not afford top quality.
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Old 10-19-2014, 09:34 AM   #254
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BTW, can all coilovers adjust camber? Or do i need additional parts for some?
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Old 10-19-2014, 09:53 AM   #255
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Originally Posted by ofuts View Post
BTW, can all coilovers adjust camber? Or do i need additional parts for some?
When you lower the car the rear camber will increase, i.e. become more negative.

The front will not change. Some coilovers have slotted top holes in the front which allows you to increase the camber.
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Old 10-19-2014, 01:07 PM   #256
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Originally Posted by jvincent View Post
When you lower the car the rear camber will increase, i.e. become more negative.

The front will not change. Some coilovers have slotted top holes in the front which allows you to increase the camber.
Lets say Stance coilovers, do they have?
If not, will i need other parts to adjust camber (front and rear)?
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Old 10-19-2014, 08:40 PM   #257
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Better to ask Stance or whoever is selling them.

As far as other parts it depends on how much camber you want. If the front struts are slotted all you probably need are camber bolts. For the rears if you want to adjust them from what the drop gives you, you will need LCAs.
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Old 12-08-2014, 02:52 PM   #258
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Rear camber can be adjusted with aftermarket control arms. We make some, as well as other companies.
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Old 01-21-2015, 07:38 PM   #259
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No actual answers for my original question. Does anybody know why you would want the front harder than the rear as opposed to the rear being harder as designed by Toyota/Subaru?
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Old 01-21-2015, 08:46 PM   #260
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Originally Posted by Bomz View Post
No actual answers for my original question. Does anybody know why you would want the front harder than the rear as opposed to the rear being harder as designed by Toyota/Subaru?
It's not quite that straight forward. Effective wheel rate including swaybar is front heavy from the factory - of course the BRZ is different than the FRS with higher stock spring rates up front, lower in the rear. That said, I've read a few threads that suggest for certain types of AutoX you want a higher spring rate up front (heavy on transitions, I think?) - I haven't checked the math to see what that actually works out to as far as wheel rate goes. And I think (my math may not be quite right yet...) that most competition packages still put slightly higher effective rate to the front. Braking, turn-in, ... there's so much in play and I honestly don't understand it properly to really answer; you might need a book or three.

What prompts you to ask?
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Old 01-22-2015, 03:00 AM   #261
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To elaborate on @cjd's post above

Quote:
Originally Posted by Bomz View Post
No actual answers for my original question. Does anybody know why you would want the front harder than the rear as opposed to the rear being harder as designed by Toyota/Subaru?
I am not 100% certain that these spring rates are correct but you will get the idea.
OEM Scion FR-S
Actual Front Spring Rate 2.3K.... At the wheel 2.1k
Actual Rear Spring Rate 3.8K......At the wheel 2.1k

OEM Subaru BRZ
Actual Front Spring Rate 2.7K..... At the wheel 2.4k
Actual Rear Spring Rate 3.5K.......At the wheel 2.0k

See this article for info about motion ratio http://www.ft86club.com/forums/showthread.php?t=9936

There is no one "correct" front/rear bias. It depends on the intended use of the vehicle and driver preference.
Quote:
Originally Posted by CSG Mike View Post
That's because if you want to be competitive, an AutoX setup and a track setup are mutually exclusive.

AutoX priorities:
- lightning fast weight shifts and small direction changes (less than 30 degrees). This is for slaloming.
-- This is achieved by REALLY high front spring rates, and a giant front sway
-- This also makes it so that under sustained cornering (sweepers), the car pushes like CRAZY, so that's why AutoX cars go deep, brake hard, and power out, rather than make a more rounded arc.

Track priorities:
- Sustained cornering speed, and being able to put power down at corner exits
-- This is achieved by getting a nice static balance.
-- Keep in mind that under power, you're unloading the front, and loading the rear.
-- Track prepped cars will sustain more raw cornering Gs, but not change direction and shift weight as quickly.


For example:

AutoX prepped FRS
- 14k/9k spring rates
- Blade type front sway, minimal rear sway

Track prepped FRS
- 10/12k spring rates
- Sways to fine tune balance.

Each car has its strengths and weaknesses. The AutoX car will likely slalom ~20% faster (raw mph), but the track prepped FRS will hold more speed on a skidpad (raw mph).
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Old 03-26-2015, 04:12 PM   #262
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Please post a reply in this topic if you have new information.
I need your help to complete the data in this list!
Swift SpecR ZC6 13+ 4T909R
Front: 4.4 kg/mm, 245 lb/in drop: -28mm, 1.1 in
Rear: 5.3 kg/mm, 296 lb/in drop: -25mm, 1.0 in
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Old 07-12-2015, 08:48 PM   #263
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guys im planning to buy RSR sports i coilovers.. seems adjustable cambers dont come with it.. can i use the OEM camber or do i need to buy theirs?? thanks..
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Old 07-14-2015, 02:18 AM   #264
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Planning on getting the TRD lowering springs, according to OP these have the least amount of drop compared to other aftermarket springs right? I want something that will give my car a little drop and won't affect my daily driving too much. Would TRD be a good choice? Thanks and if anyone is selling them let me know. aha
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Old 07-16-2015, 07:50 PM   #265
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Originally Posted by timmydatooth View Post
Planning on getting the TRD lowering springs, according to OP these have the least amount of drop compared to other aftermarket springs right? I want something that will give my car a little drop and won't affect my daily driving too much. Would TRD be a good choice? Thanks and if anyone is selling them let me know. aha
And what are the front and rear spring rates for the TRD replacement springs (PTR07-18130) vs the stock FRS springs?
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Old 08-10-2015, 11:33 PM   #266
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is -3 camber in the rear safe to drive in 70 - 90 mph highways??
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