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-   Series I Wheels, Tires, Brakes & Suspension (https://www.rx8club.com/series-i-wheels-tires-brakes-suspension-55/)
-   -   Spring rates and other basic suspension info (https://www.rx8club.com/series-i-wheels-tires-brakes-suspension-55/spring-rates-other-basic-suspension-info-79096/)

Powrider 03-02-2015 12:28 AM

I didn't ask for an argument, I have been using this tire size for 8 years with no problems I was inquiring about replacing shocks & springs that are worn out? I was asking for input on coil-overs and shocks and/or springs. I was asking about replacing tires. Do you have input about shocks springs and coil overs? Because I need to replace them and I also need more clearance in front as well my car rides to low it is very Hilly here. The front air dam hits on my driveway and when enter many streets from drives on steep inclines. I want to raise the car slightly not lower it, so you either have input or you don't. I appreciate what your saying about the tires, but there are others on here also running this tire size on these wheels, they just don't live in the Texas Hill country, I just moved back two years ago and I didn't have problems till my shock started to wear out mainly because there are lots of big dips on the highways and roads. the other have not had trouble because they must live where it is pretty flat like where I used to live. It isn't constantly hitting just when it bottoms out. I want a racing shock or coil-overs that lets me set a bottom limit on how far it can drop I half inch higher on the bottom limit will stop it.

yokohamaboi 03-02-2015 12:46 AM

Why the fuck would you pay someone $200 bucks per shock install?

Just go with some tein basics, stance, powertrix, bc racing, megans, there all good for your purpose which is street driving, their entry level coilovers, If I had to choose stance and powertrix would be my pick, You can run your car lower and adjust the damping and that should stop the bottoming out.

Powrider 03-02-2015 01:22 AM

I would pay someone because my wife is disabled and has a rare neurological disease and she is very ill and slowly fading and I take care of her full time, so I do not have time to do it. It also includes the re-alignment afterwards and it is $200 for the front and $200 for the back sorry I misquoted it! Why are you so adversarial? Help is one thing and I appreciate that, but I have enough going on that I have to deal with that I don't need someone to give me a bunch of BS and a hard time that I just I don't need right now.

yokohamaboi 03-02-2015 02:55 AM

I already gave you the info on coilovers are gonna be priced 800-1200 bucks plus install fee which is 400 bucks in your case. If you want grab the Megan's their cheap and I have had them for a couple of years. Never had any issue,

bhop 03-03-2015 12:54 PM

"Wrong" tire/rim size. You essentially made the car heavier and slower, netting no gains whatsoever. Just rolling fender lips won't do anything. Replace with new stock Bilstein, koni shocks etc. Get a slightly stiffer than stock spring, and please run a 245 17 or 18 in tire on an otherwise stock RX-8. If you must run 9.5 width, then a 255 fits nice and may be optimal in certain conditions.

wankelingoff 04-14-2015 10:13 PM

Is there a good source for OEM rear springs? My driver side seems to be sagging QUITE a bit.

JCrane82 04-15-2015 08:07 AM

Check the for sale section on this forum. Most people have a hard time giving them away.

HI_RX8 04-16-2015 10:23 PM

Rear arms
 
I'm looking to buy some rear arms but I'm wondering if japSpeed a good brand? or should i go with megan for the arms in the rear and as well as the front. Please let me know people. Thank you.

Sydo 09-21-2018 08:18 PM

Hi I have stock suspension with stock 18" wheels. Front measurement from bottom of rim to guard is 24.75" rear is 24"

Have ordered Koni Sport shocks and H&R Coils

If someone has similar set up please post measurements only 18" wheels though thanks

NotAPreppie 09-21-2018 10:41 PM

You should measure from center of the hub straight up to the fender.

Sydo 09-21-2018 11:06 PM


Originally Posted by NotAPreppie (Post 4870813)
You should measure from center of the hub straight up to the fender.

Thought i would get a more accurate measurement holding end of tape under rim lip than guessing middle of hub

Sydo 09-21-2018 11:19 PM

ok front 15.25" rear 14.5 "

REDRX3RX8 09-23-2018 07:17 PM


Originally Posted by Sydo (Post 4870803)
Hi I have stock suspension with stock 18" wheels. Front measurement from bottom of rim to guard is 24.75" rear is 24"

Have ordered Koni Sport shocks and H&R Coils

If someone has similar set up please post measurements only 18" wheels though thanks

My height number were all over place new. 13.5 13.75 14.25 14.

I bought some .7inch and 1.4 inch Eibach lowering springs in the Bilstein B12 kit for $712. from Ajusa.

Someone at dealer before I saw car put 7.5 x18 Enkeis that are GF-1. Pretty and light. Also, make track 24mm wider because 38ET instead of 50 ET.

I made lemonade with it by putting Michelin PSS in 215/40r18, and traction is incredible.

Also, total weight is around 42 # per wheel

Suspension is wonderful at firm, and no bottoming.

IT RAISED SUSPENSION instead of lowering to 14.25 all around.

I think it's less firm than coilovers, and I never have to sweat adjustment.

I caught a Mazda coupon and got done for $580.

I not gonna take the beating to do myself, and it's one time deal done right.

Sydo 09-23-2018 07:58 PM


Originally Posted by REDRX3RX8 (Post 4870887)
My height number were all over place new. 13.5 13.75 14.25 14.

I bought some .7inch and 1.4 inch Eibach lowering springs in the Bilstein B12 kit for $712. from Ajusa.

Someone at dealer before I saw car put 7.5 x18 Enkeis that are GF-1. Pretty and light. Also, make track 24mm wider because 38ET instead of 50 ET.

I made lemonade with it by putting Michelin PSS in 215/40r18, and traction is incredible.

Also, total weight is around 42 # per wheel

Suspension is wonderful at firm, and no bottoming.

IT RAISED SUSPENSION instead of lowering to 14.25 all around.

I think it's less firm than coilovers, and I never have to sweat adjustment.

I caught a Mazda coupon and got done for $580.

I not gonna take the beating to do myself, and it's one time deal done right.

Cheers for that. Yeah I want at least 1" drop at front. Bigger fender gap at front

Sydo 10-07-2018 10:17 PM

Koni Sports with H&R Coils dropped it 40mm all around. Just need to sort correct camber ?

Loki 10-08-2018 08:39 AM

Get a full alignment all around. All the settings have changed.
40mm lower? Be careful around speed bumps.

What did you end up doing for bump stops? These cars use the bump stop during normal suspension travel, it's part of normal operation.
​​​

Sydo 10-08-2018 04:03 PM


Originally Posted by Loki (Post 4871927)
Get a full alignment all around. All the settings have changed.
40mm lower? Be careful around speed bumps.

What did you end up doing for bump stops? These cars use the bump stop during normal suspension travel, it's part of normal operation.
​​​

yes I was surprised with the 40mm drop The Koni kit advertise 25mm. Haven't touched bumps stops but was going to trim them as per racingbeats recommendation

Sydo 10-08-2018 04:08 PM


Sydo 10-08-2018 04:21 PM

Wheel alignment result. Thoughts ? They snapped a rear cam bolt as well
https://cimg4.ibsrv.net/gimg/www.rx8...0b29e2e1e.jpeg
WA
https://cimg5.ibsrv.net/gimg/www.rx8...43f956855.jpeg
WA

Loki 10-08-2018 04:22 PM

Yeah, Konis are known to drop 0.5-0.75 inch lower than advertised. Goodwin Racing's store goes into detail about it, and there are many threads about that.
I'd leave the bump stops as they are if you haven't touched them yet. Those H&R springs aren't that stiff, could use the extra stiffness. If they disintegrate or the ride is unbearable, you can replace them then.
Source: had Konis and Eibachs.


Alignment: why so little front camber? This set up looks like it would understeer. Good caster up front, but I wonder if you're better with a bit less caster (like 7 degree) if it buys you another degree of static camber.

Sydo 10-08-2018 04:30 PM

New to this mate but going back to get broken bolt fitted. I could give them suggestions though. -2 camber at front as well ? @Loki

Sydo 10-08-2018 04:42 PM


swoope 10-08-2018 10:29 PM

aussi?

for the street alignment is just fine. if you plan to track it i would use all the camber you had to begin with..

neat nissan!

beers :beer:

Sydo 10-08-2018 11:09 PM


Originally Posted by swoope (Post 4871997)
aussi?

for the street alignment is just fine. if you plan to track it i would use all the camber you had to begin with..

neat nissan!

beers :beer:

Yeah Ozzie mate No track work. The Patrol is a beast Factory turbo Diesel 4.2

swoope 10-08-2018 11:21 PM


Originally Posted by Sydo (Post 4872002)
Yeah Ozzie mate No track work. The Patrol is a beast Factory turbo Diesel 4.2

wicked!

you might want to update your info, like location. it makes it easier to help. if just daily driving i would do with what ever stock is.

beers :beer:


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