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Guest Message by DevFuse
 

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1st gen lowering


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23 replies to this topic

#1 waimaks

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Posted 18 May 2008 - 12:41 AM

So I'm thinking about (going to) lower the GSR a little and was hoping for some advice.
In the front I was thinking about using brumby front struts with the adjusters on just incase it need to be wound up a little (eg- Making springs captive for inspection) and just cutting a few coils off some spare sets I've got kicking around.
And in the back.... Reclocking the torsion bar, What is the procedure for this?

How does the plan sound so far?

#2 kiwi subbie

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Posted 18 May 2008 - 02:39 AM

the gsr is lower than the 1400 GL Coupe by about 10mms any way. you have to turn the toursen bars round. not sure hows you do that tho?

#3 waimaks

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Posted 18 May 2008 - 03:10 AM

Yeah thats the plan. Just unsure on how to go about adjusting them and how many spines = how much distance. Thats not as much of an issue though.

#4 Leeroy

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Posted 18 May 2008 - 05:09 AM

My 1600 service manual states the following in bold;

"The vehicle height can be raised by turning the outer end and inner end of the torsion bar by the same number of serration teeth in the opposite direction of the arrow mark on the outer end surface of the torsion bar. Turning the torsion bar in the arrow direction lowers the vehicle height.

The changing rate of the vehicle height is 5mm (20 in) per tooth shifted"

I assume the 1400 and 1600 rear suspensions would be the same. Hope this helps!

#5 kiwi subbie

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Posted 19 May 2008 - 01:28 AM

on my 74 DL i think the arms have been welded on to the splines

#6 D-CyPhA

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Posted 02 June 2008 - 10:52 PM

not sure how low you want to go but anything is possible

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#7 carfreak85

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Posted 03 June 2008 - 12:15 AM

SWEET wagon!!! Where did you get that front lip?!?

#8 kiwi subbie

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Posted 03 June 2008 - 01:18 AM

sweet wagon :grin: lowest by law we can go here is 100mm from the lowest point on the chassie or stuctral part i think? normally its 100mm from bottom off the cill

#9 waimaks

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Posted 03 June 2008 - 01:53 AM

I will have to try and out-do you har har har!
Just out of curiosity... Are your springs captive still? Or anywhere near it?

#10 D-CyPhA

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Posted 03 June 2008 - 05:50 PM

I will have to try and out-do you har har har!
Just out of curiosity... Are your springs captive still? Or anywhere near it?



I don't know what captive means but I adapted adjustable coilover sleaves and the lip is from an old Volvo

#11 waimaks

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Posted 13 May 2011 - 06:10 AM

Dragging up an old thread I know, but I finally got it done.

Posted Image

Used '81 Brumby front struts and springs
3 coils cut from springs
Struts shortened by 50mm below the spring perch
Toyota corolla gas strut inserts (ae92?)
Roughly 30mm more removed from struts above the spring perch to get insert captive.
And another 20-30mm taken off the shock shaft to get the springs captive.
The adjustable spring perches of the 4wd struts mean I can wind the height up to get it above the legal minimum height at inspection time. :)

In the rear I just went down roughly 2 splines.
Shocks are for a c22 Nissan Vannette with the ends modified.


The front is nice and stiff and responsive, but the rear spring rate is unchanged (read - soft and wobbly in comparison), I was hoping to try and fit Gen1 4wd torsion bars to my 2wd trailing arms in an attempt to stiffen the back up a bit.
Does anyone know if this is possible?

#12 Pooparu

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Posted 13 May 2011 - 04:22 PM

That looks great. Nice job.

#13 Kostamojen

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Posted 13 May 2011 - 07:30 PM

I went 3 splines down on the rears on my FF-1 and its too much, going to have to re-do it :(

Your car looks fantastic. Mine should be riding at a similar height when its done :)

#14 Dirk

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Posted 16 May 2011 - 02:07 AM

I've seen the back end stiffened up with a coil fitted around the shock. Sort of a DIY rear strut assembly. The one I saw looked pretty rude but its not a bad solution assuming the WOF inspector doesn't laugh at you.

#15 waimaks

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Posted 16 May 2011 - 05:15 AM

Cheers for the nice words guys.

Dirk, I think that I might definitely have trouble sliding something like that through a wof, and I'm unsure if theres the room. Clever idea though.

Overall it handles fairly well now though once you get it settled into a corner and have your line set.

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#16 Dirk

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Posted 18 May 2011 - 01:11 AM

Looks the bomb!

I lifted the back of my sedan via the torsion bars. Had to get slightly longer shocks to do this. They needed replacing anyway.

What a difference a new set of gas shocks make! Maybe stiff gas shocks would help for yours?

By the way, If you haven't already, you should look into making a strut tower brace for the front. It makes the car feel so much stiffer.

cheers.

#17 waimaks

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Posted 18 May 2011 - 01:19 AM

Cheers!

I fitted new shocks into the back & front at the same time as lowering, They're gas shocks intended for the front of a Nissan Vanette. So are hopefully a little stiffer than what was in there.

The shocks that were in there were too long and a Toyota shock, they were bottomed out at that height.

Here they are at full droop.
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Compared to the old shocks
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I had thought about air adjustable shocks to stiffen things up a bit, and to get the back higher when I have a load/passengers, but I don't think they make anything that short.

#18 Dirk

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Posted 18 May 2011 - 01:22 AM

Looks fairly normal but its actually about 100mm higher at the back than it used to be.

Ill lift the front about 20mm when I get round to it. Would love new struts for the front but they are very spendy.

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#19 waimaks

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Posted 18 May 2011 - 01:26 AM

Sounds like you need some Brumby/4wd struts.

Heres a picture with them in the front of mine before I had the struts shortened.

Note - This is Brumby struts, with brumby springs, with 3 coils cut off.

I had to cut 50mm out of the strut to get it to a height I wanted.

Posted Image

#20 Dirk

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Posted 18 May 2011 - 01:39 AM

Cool thanks.

Ill give it a go.

Think I know just where to get some too.

Cheers

#21 Legacy RallyGuy

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Posted 16 June 2011 - 12:16 AM

I love the pictures! Feel free to post more! :P

#22 waimaks

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Posted 16 June 2011 - 02:39 AM

:)


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#23 shaun

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Posted 18 June 2011 - 07:51 AM

sweet looking gsr my dad had one back in the 80"s that we rallied and we did very well keep up the good work with it
from a tassie suby lover

#24 carfreak85

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Posted 18 June 2011 - 09:06 PM

Very, very, very good looking GSR. That is the car I want!




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