A list of MKIII spring rates OEM, aftermarket and coilover

[bobiseverywhere]

i found this on another Great Supra site www.Supraquebec.com they are a great bunch of people and added a bit of my own reaserch


* Stock MKIII
* Front: 461 lb/in
* Rear: 215 lb/in
* Drop: 0

* Stock MKIV
* Front: 430 lb/in
* Rear: 219 lb/in
* Drop: 0

* Suspension Techniques
* Front: 442 lb/in
* Rear: 147-175 lb/in
* Drop: 1.3"

* Eibach
* Front: 343-628 lb/in
* Rear: 126-257 lb/in
* Drop: 1.3" - 1.0"

* Tokico
* Front: 395 lb/in
* Rear: 198 lb/in
* Drop: 1"

* Intrax
* Front: 700 lb/in max
* Rear: 220 lb/in
* Drop: 1.6" - 1.3"

* H&R
* Front: 575 lb/in max
* Rear: 285 lb/in
* Drop: 2"

* R*SR Sport
* Front: 503 lb/in
* Rear: 262 lb/in
* Drop: 1.2" - 0.8"

* R*SR Race
* Front: 677 lb/in
* Rear: 335 lb/in
* Drop: 1.4" - 0.8"

* Whiteline
* Front: ?? lb/in
* Rear: ?? lb/in
* Drop: 1.0


* B+G Suspension
* Front: ?? lb/in
* Rear: ?? lb/in
* Drop: 1.3"


--------------------------------------------------------------------------------------------------
COILOVERS



* Tein Type Flex coilovers
* Front: 671 lb/in
* Rear: 336 lb/in
* Height Adjustment range: F:-0.4",-3.7" R:-0.4",-2.7"
* Ride height Drop: F:-1.7" R:-1.5"


* Tein Type MONO Flex coilovers for JZA70 Supra
* Front: 671 lb/in
* Rear: 336 lb/in
* Height Adjustment range: F:-3.0", -0.6" R:-2.6", -0.6"
* Recomended Height Adjustment range: F:-2.7", -1.4" R:-2.0, -1.4"
* Ride height Drop: F:-1.8" R:-1.6"

* Tein Super Street Dampers w/o upper pillowball mounts
* Front: 895 lb/in
* Rear: 504 lb/in
* Height Adjustment range: F:-1.1",-2.9" R:-0.5",-2.4"
* Ride height Drop: F:-1.8" R:-1.3"

 

[aye mate]

This should be in FAQ! Nice find.

 

[cjsupra90]

This should be in FAQ! Nice find.

A agree, but I would like to see proof from the manufactures before it goes there. I find it hard to beleave that some like Suspension technics and Tokico would use a softer rate then stock and yet lower the car. Thats asking for something to bottom out IMHO.

 

[Syris]

hmmm Looks like a set of H&R would be good for the back with some eibachs up front to being a nice set up

 

[BRIAN]

add the JZA springs aswell, don't they drop the car about .5" compared to 89+ and 1" compared to pre 89...

 

[bobiseverywhere]

bump

if anyone knows the spring rates for the JZA70

 

[starscream5000]

I'd also like to know what springs are you talking about when you are giving specs for the RS-R's. They have two different steups for MKIII's, RS-R Down springs, and RS-R Race springs.

 

[JustAnotherVictim]

Probably the down springs.

 

[starscream5000]

That's what I was thinking. It seems like RS-R is no longer making products for the MKIII, cuz just about anything they make that a website has no longer actually have them in stock, nor can they get them from the company .

 

[JustAnotherVictim]

Toyota Supra 87-92 Turbo Race Springs
SKU: 35-T300
Detailed Specifications
Model - Supra
Year - 1987 - 1993
Model Notes - Turbo
Estimated Front Drop - 35mm(1.4in)
Estimated Rear Drop - 20mm(0.8in)
Front Spring Rate - 12.00kg(677lbs)
Rear Spring Rate - 6.00kg(335lbs)
Additional Notes - Fits rubo Model ONLY

 

[bobiseverywhere]

i added that info to the list JAV thnx

 

[bobiseverywhere]

also adding in Coilovers will start with the easy one Tein type Flex

 

[JustAnotherVictim]

lol
I forgot to put they were RS*R but looks like you figured it out.

 

[starscream5000]

Damn, those are some stiff ass springs, not progressive eh? You think they'll start sagging a few years down the road badly?

 

[bobiseverywhere]

good question

 

[ma71supraturbo]

This should be in FAQ! Nice find.

It is, buried on page 5... The links in my post have changed though to:

http://www.geocities.com/ma71supraturbo/MK3Tech/LoweringSpring.html
and
http://www.geocities.com/ma71supraturbo/MK3Tech/Coilovers.html

 

[bobiseverywhere]

Thats some Great Stuff

do you mind if i add it to this thread and the links as well

Also you can add to your tables for the RS*R Springs since we have the info on here

 

[Reign_Maker]

good info to know...

 

[yaitsme]

Zeal's Function-"B6" (listed in one-a those links above) is now replaced by "X" and "Xs"

I just got done running through some questions with an Endless (Zeal's parent co.) representative.

I didn't ask about drop, sorry. But what I did ask about:
"X" has the harsher valving - a street/roadcourse compromise
"Xs" is the street version with "cushy" valving
"X" spingrate: 16front/12rear
"Xs" springrate: 14front/10rear ... (you'll have to do your own conversion, sorry)
"X" adjustment points: 30
"Xs" adjustments: 6
Steel construction standard, Aluminum optional (~$200 extra)
Both have ride height/spring preload independently adjustable


... I'll fire off an email now, & confirm the ride height info if I can.

 

[prsrcokr]

Anyone have info on Buddy Club's. I've been looking at them for a while but don't have the funds now (bougtht a trailer instead.)

Looking at zeal as well, just hadn't heard much feedback and there's a big price difference.