What is the stiffness percent of the stock and nismo and 350evo and hotchiks?

 

help?

 

Nissan does not release the numbers. A lot of people were asking about this a while ago when the NISMO suspension first became available and no one could figure it out. To find out you would need someone to take a 3rd party reading from the stock shocks/springs, or submit a formal inquiry to Nissan that in all likelihood would not be answered :P

 

350EVO bars are
Front 1 1/4 solid three hole adj
Rear 15/16 solid three hole adj
Our rear bar also doenst have the OEM stlye twist and bends that can take away a bars effectiveness.
BJ@350EVO.com

 

Nismo sway bars
Front 36mm (hollow core design, like the stock bar)
Rear 22mm (hollow core design)
.

Cusco sway bars
35mm front solid, not hollow
22mm rear solid, not hollow
Front sway bar has two settings of 20% and 37% stiffer then stock
Rear sway bar is 73% stiffer then stock.


Stillen 5-way adjustable bars
35mm front hollow 22mm rear hollow (converting from 1 3/8" & 7/8")
Claimed adjustment range 7% to 70% (unknown if both front and rear bars
have the same full 7% to 70% range)


Mines Sway bars
Front 20% stiffer rear 30% stiffer
$699.00(OUCH!)

Eibach specs from Eibach.com
34mm hollow front 22mm hollow rear
Front bar is 2-way adjustable, rear bar is 3-way adjustable


350EVO Sway bars 3-way adjustable front and rear
34mm front and 23mm rear solid bar construction, not hollow.
Front bar
soft adjustment -8% softer
middle adjustment 11% stiffer
stiff adjustment 33% stiffer

Rear bar
soft adjustment -2.6% softer
middle adjustment 25% stiffer
stiff adjustment 53% stiffer
Sway bar sets include front and rear bars, greasable bushings,
and brackets.


Hotchkis Sway bars
Front 1 3/8" (35MM) Hollow (Bar Weight 13.5lbs)
3 Position Adjustable
Rate Increase over stock
+9%,+32%,+63%

Rear 15/16"(24mm) Hollow (bar weight 5.5lbs)
3 Position Adjustable
Rate Increase over stock
+54%,+92%,+146%

 

The oem bars (as per 350EVO) torsional deflection rate on the front sway bar is: 1100 lbs./ in. The OEM rear bar is 380 lbs./in

In comparison, this is how the EVO350 bars measure in LBS.

front bar
soft 1010 lbs/in
Middle 1225 lbs/in
stiff 1460 lbs/in


rear bar
Soft 370 lbs/in
middle 475 lbs/in
stiff 580lbs/in

 

Those were the numbers for our old stlye rear bar before they went into production. We then switched to a 15/16 size rear sway bar.

 

why is the 350evo giving less stiffness while cusco and hotciks are giving more. Isnt the more stiffness a sway provide, the less body roll?

 

So you went from 23mm to 24mm. What are the current stiffness ratings in each bar setting? Would help marketing wise vs Hotchkis.

 

Ya know, I noticed a member had went from Cusco bars to the EVO350 bar. I pointed out that the Cusco rear bar spec show's more stiffness. He replied in so many words that the EVO350 rear bar, spec's be damned is most definately stiffer then the Cusco rear bar he had previously.

Plus be have BJ telling us that they actually use a thicker rear bar then what was used for the specs I posted. Even a 1mm increase will net a noticeable increase in bar stiffness, now we just need BJ to publish the correct spec's for the current rear bar.