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Are the Nismo HD torsions still available?


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#41 oldskoolvws

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Posted 06 February 2013 - 11:05 PM

What is the load/tension/pound rating for the HD bars? What about stock? How much stiffer are they?

Stolen from NICO / Rev_D21:

 

About Aftermarket Torsion Bars:

Nismo 2 stage torsion bars are made by Sway A Way (SAW). The SAW part number for these bars is 1440. These bars have a second set of splines towards the middle of the bar itself. A lever is attached to the bar that limits the twist of the bar. Once the bar reaches a set amount of twist these levers press against the truck thus shortening the effective length of the bar which increases spring rate. You will notice that SAW # 1440 is not available in the SAW catalog. 1440 is only available through Nismo. Also note that it is the only bar to feature the lever mechanism that I described above. These bars are the actual bars that the ITT trucks used, so if you are trying to build an actual ITT based Hardbody, you will need these bars.

I took a chance on a set of SAW 1446 bars. Want to know a secret? SAW makes the bars that are sold on
4x4parts.com and for Calmini. The only differences are the color paint they used to powdercoat them. If you look at all the part numbers they all end in 1446. SAW 1446 is a one-stage torsion that lacks the second set of splines for a lever mechanism but has a spring rate that is 30% higher than stock. SAW bars are powdercoated red and are the less expensive way to go. Why pay other companies markup when you don't have to? The Bad: SAW 1446 is not what most ITT Hardbodies ran. If you are trying to build an actual ITT Hardbody you can use these but just know they lack the second stage action that the Nismos provide.



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#42 oldskoolvws

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Posted 06 February 2013 - 11:08 PM

Also, the NISMO catalog shows the same part number from 521 all the way to D21 (2WD).



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#43 oldskoolvws

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Posted 08 February 2013 - 04:50 PM

Mama said the UPS man dropped off something today.....hmmmmm.



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#44 mrbigtanker

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Posted 08 February 2013 - 07:02 PM

Pics pics pics pics

#45 oldskoolvws

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Posted 08 February 2013 - 08:50 PM

I will when I get home. Still out.



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#46 mrbigtanker

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Posted 08 February 2013 - 09:14 PM

Cuz go home already,go check um now go.aunty Maria lani

#47 oldskoolvws

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Posted 10 February 2013 - 02:37 PM

Okay, so I guess this will become the definitive NISMO 2-Stage Torsion thread. Initiailly (Friday) I only got one box. It had the torsions in it. Then on Saturday, box 2 showed up. It had the stage 2 hardware. It is clearly manufactured by Sway-A-Way and really pretty cool. So here you go:

 

Remember, same part number for 521 trhough 720.

img1786xk.jpg

 

img1787fr.jpg

 

img1790kp.jpg

 

img1789jx.jpg

 

img1794y.jpg

 

img1795a.jpg

 

img1803u.jpg

 

img1804ts.jpg

 

img1805pt.jpg

 

img1800uf.jpg

 

I think this one is wrong (orientation).

img1796kq.jpg

 

img1797pb.jpg

 

img1798dy.jpg

 

img1799ng.jpg



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#48 oldskoolvws

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Posted 10 February 2013 - 02:37 PM

Anyone have the diameter of the stock torsion?



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#49 banzai510(hainz)

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Posted 10 February 2013 - 08:01 PM

1st time I actually seen a set.


Throw on some Weber sidedrafts, Rising Sun hood.... call it good

#50 jesusno2

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Posted 10 February 2013 - 08:19 PM

Not sure i understand the point of these? 



#51 mrbigtanker

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Posted 10 February 2013 - 08:33 PM

Get them in or are they in yet..

#52 oldskoolvws

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Posted 10 February 2013 - 09:21 PM

Not sure i understand the point of these? 

It's two stage. Under normal driving, it should handle stock like. However, under heavy applications or load, the torsion in the tubes "lock" and the rebound becomes a lot stiffer as it is essentially shortened in half. That's how I see it now anyway.

 

Get them in or are they in yet..

They'll go in when I rip apart the entire front end. I'm just finalizing the design on the shock situation and then should have the green light.



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#53 wayno

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Posted 10 February 2013 - 09:21 PM

These torsion bars would be great for lowered vehicles.


 

 


#54 erichwaslike

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Posted 12 February 2013 - 01:59 PM

any chance you can take pics of both ends of the gold sleeve? i have a tought on these but i dont wanan say anything till i can confirm how they spline up...


Ratsun: where its no longer a debate of function > form

but a debate between Down syndrome ingenuity > someone taking a shit in the gas tank
 

you read my post like a woman would, interpreting.... not actually reading.

wait skib loves the cock

Should I do it to myself or get skib to hammer me?

Ever hear that saying about people in glass houses Syncro?


Ill make a special trip to cali and find your ratty K5 wearing slut bag of a datto




Take some time off, make your signature a little longer...everything will work out


 
 

 

i kind of want to be in your sig party/orgy

 

 

 

 



 
 

 
 

 

SIG-1.jpg


#55 oldskoolvws

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Posted 27 February 2013 - 03:26 AM

Here we go.

 

img1902z.jpg

 

img1903ee.jpg

 

img1904l.jpg

 

img1905eo.jpg

 

img1906g.jpg



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#56 Dime Dave

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Posted 17 June 2013 - 11:26 AM

oldskoolvws,
You got them installed yet?

I see this upgrade being helpful with a VG30 install as well.

Dave Patten
Dunbarton, NH

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www.FutoFab.com
 

The Modification Theory -

Once started, all modifications become more complex and take twice the allotted time to finish.
 


#57 oldskoolvws

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Posted 17 June 2013 - 04:41 PM

I'm finishing up the suspension preps. I have to hit the last kingping and verify I have all the parts.......then install for the front (nismo) and the rear leaf (belltech 720) will attempt to begin.



521 studs are different than all the other studs, Stud.


Collector of rarities....VW and 521.

#58 erichwaslike

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Posted 11 September 2013 - 12:43 PM

so i was going over this again in my head and i noticed in the directions it has the gold sleeves at the front of ther truck and the way you slipped the end on from the lca you have it on the wrong side, just hoping you catch that before you put them in backwards.....


Ratsun: where its no longer a debate of function > form

but a debate between Down syndrome ingenuity > someone taking a shit in the gas tank
 

you read my post like a woman would, interpreting.... not actually reading.

wait skib loves the cock

Should I do it to myself or get skib to hammer me?

Ever hear that saying about people in glass houses Syncro?


Ill make a special trip to cali and find your ratty K5 wearing slut bag of a datto




Take some time off, make your signature a little longer...everything will work out


 
 

 

i kind of want to be in your sig party/orgy

 

 

 

 



 
 

 
 

 

SIG-1.jpg


#59 Dime Dave

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Posted 11 September 2013 - 06:46 PM

OK I've done some research. My 98-99 Nissan Motorsports catalog provides some data on truck torsion bars.

 

All 521/620 torsion bars are listed under the same P/N's

99996-T4010 for their oversize 26m bar

99996-T1450 is their 2 stage bar

 

The same part numbers are listed under the 2wd 720. The 26mm bar is also lists for 4x4 720 up to 12/82.

 

They also provide the stock bar diameters as follows.

 

521 - 20.7mm

620 to 7/77 - 21.9mm

620 from 8/77 - 22.0mm

720 2wd 10/81 to 12/82 - 24.0mm

720 (all others) - 22.0mm


Dave Patten
Dunbarton, NH

Dave@FutoFab.com
www.FutoFab.com
 

The Modification Theory -

Once started, all modifications become more complex and take twice the allotted time to finish.
 


#60 Dime Dave

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Posted 11 September 2013 - 07:30 PM

Rate increases for different bars over the stock 20.7mm 521 torsion bar

(let me edit this so it might be a little clearer)

 

620 to 7/77 - 21.9mm, 1.26 x stock or 26% increased rate over stock 

620 from 8/77 - 22.0mm, 1.28 x stock or 28% increased rate over stock 

720 2wd 10/81 to 12/82 - 24.0mm, 1.81 x stock or 81% increased rate over stock 

720 (all others) - 22.0mm, 1.28 x stock or 28% increased rate over stock 

Nissan Comp - 26.0mm, 2.5 x stock or 150% increased rate over stock 

 

 

I don't know if this is clearer or not, percentages always confused me in math class.


Dave Patten
Dunbarton, NH

Dave@FutoFab.com
www.FutoFab.com
 

The Modification Theory -

Once started, all modifications become more complex and take twice the allotted time to finish.