Another spring thread...mainly about Intrax.

Ma70.Ent

Supramania Contributor
Feb 26, 2006
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I'm talking to someone you guys might know as Thermactor, and he says with Bilstein/Konis they'll ride super harsh, but no bouncing, but he also says it lowers more than they say (1.6/1.3). Hmmm.
 

steven89

Member
Jul 8, 2006
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Houston, TX
Clied;983100 said:
I'd like to hear more on the RSR race springs as well. I'm planning on using them matched with some Bilsteins shocks. The RSR race springs are linear springs right?

I have RSR Race Springs on Koni Adjustables. Theyre pretty stiff. Handles great IMO. Anymore questions, just ask. =p

http://www.supramania.com/forums/showpost.php?p=949435&postcount=628
Pics ^^

ohh.. and theyve settled a lil more than in those pics. ^
 

JonoTurbo

Going for broke
Mar 30, 2005
670
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CT
I run Intrax springs. They do drop the rear just slightly too much IMO, a little higher and I could actually fix my camber. No problems with rubbing on the bumps though. I've got them with KYB GR2's. They aren't noticeably stiffer than Eibachs. I can't say that the car handles very well with this combo though.

EDIT: Also, they don't bounce at all, so I guess the soft spring rate in the rear is fine.
 

Ma70.Ent

Supramania Contributor
Feb 26, 2006
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Here are a list of the Spring Rates. Anyone got any for BG, Whiteline, etc.?

* 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"
 

sogi99

New Member
Jan 2, 2008
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Elk Grove, CA
I have it on my old 87T the front is lower than the back at least on mine. I wanted to cut the rear so its about even. The person I sold the car to went with RSR race spring and bilstein and I went ahead and took my old spring and put it on my 90T. ride comfortable especially for me driving a 240sx s14 with coilovers that has 9kg front and 7 kg back on ksport coilvers which is a bit harsch. But my 240 corners like its on rails though. Anyway, I 've noticed understeer with the intrax springs when doing corners. Maybe a strut tower bar and a sway bar upgrade will eliminate that. The intrax is comboed with my stock tems suspension it doesn't feel like it bottoms out. just my 2 cents.
 

Ma70.Ent

Supramania Contributor
Feb 26, 2006
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Do any of you guys with intrax springs have "sagging" problems like one of the users here did?
 

Suprizm2

Boost'n
Oct 19, 2007
39
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Los Angeles
I do gotta say the rears on interax suck, I had a tranny sitting on my 87 with stocks an i had limited drop then i swaped it over om my 90 with intrax and it sagged big time the rears have no support on weight at all!.:nono:
 

Ma70.Ent

Supramania Contributor
Feb 26, 2006
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The only reason I can see for the rears being poor in support is because they are the same rates as stock, but lower in height.

Oh well. So, anyone got information/spring rates on Whitelines/BG etc?
 

Ma70.Ent

Supramania Contributor
Feb 26, 2006
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IJ.;987270 said:
^ And there's too big a mismatch in rates ;)

Yeah. :D

Does anybody have a direct comparison of Stock Springs/"X" Struts and Tanabe Springs/"X" Struts? Most people say Tanabes are stiffer yet according to the chart the Tanabes are the same as stock.
 

Supra7MG

Supramania Contributor
Oct 13, 2005
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Duncansville, PA.
I ran Intrax Springs for about 10 yrs. without problems. Granted, I don't drive many miles with my Supra yearly. They did what they were expected to do without problems. I did not experience any sagging.
I have since decided to go to the next level and now run HKS Hipermax coil overs.
Huge difference.
Consider what your requirements are before purchasing.
Intrax springs are not a bad choice in my opinion if ride height and a general improvement in handling is your goal.
 

cuel

Supramania Contributor
Jan 8, 2007
1,536
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Baytown, Texas
Bilstein struts(sport replacements from A.Z.), and Hypercoil springs and sleeves from TIP Engineering.

Front: 600 in. lbs.
Rear: 300 in. lbs.

Just installed them today, have to do some fine tuning tomorrow, and get it aligned Monday. Firm ride now, and the car seems to stay flatter through turns. Give Wisass a holler, and he can help you out.