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Re: James 85 Z31 300zx - Rear Subframe Camber Mod IRS
Posted: Wed Oct 13, 2010 11:05 pm
by 85_Z31
So it seems Odd I'm working on making the rear Camber Adjustable Before the front, but anyways ....lets crack on
1x IRS Nissan Semi Trailing Arm Subframe for reference
Now were going to slot the holes a shitload to correct camber for lowered cars
The idea is for street driving you get it set to about 1deg neg, and for track days you can take the correction out IE when you drop your car and the rear camber skyrockets to like -2.5 you can add neg camber back in up to this amount.\
another view
And the start of the adjuster plates, so far they are only 4mm thick but I am going to double skin them to give them some beef as they will need to hold a fair bit of tension. I will also gussest the sides
Here you get the idea that there will be a plate welded across the bottom ( 7mm flat ) with 2 holes drilled in it to match the adjuster bracket.
Its just the the chain adjustment on a motorbike.
Tomorow I need to file the bottom of extension pieces dead flat, and then I can tac weld the big plate that goes underneath that the adjuster bolts to.
I am doing all the work, however this will be tig welded by a guy who is friendly with the local Certifier

Re: James 85 Z31 300zx - Rear Subframe Camber Mod IRS
Posted: Thu Oct 14, 2010 9:33 pm
by dirtyleppa
nice, will keep a close eye on this for my laurel. whenever that gets anything done to it that is
Re: James 85 Z31 300zx - Rear Subframe Camber Mod IRS
Posted: Thu Oct 14, 2010 9:38 pm
by 85_Z31
Been out and Spent HOURS hand filing the bottom of the extension pieces so that they are dead level, and also some more work on the adjustment brackets.
I found a nice big hunk of 10mm flat stock, but i might have this milled down to about 7mm as I can't see any reason for it to be that heavy.
So far its going well, Tomorow I will cut the slot down and figure out the max adjustment, and then drill the bottom plate
Re: James 85 Z31 300zx - Rear Subframe Camber Mod IRS
Posted: Sat Oct 16, 2010 1:08 pm
by 85_Z31
This side is getting close to being finished now,
First my spanky new poly bushings all the way from the USA
Top hole is original showing range of adjustment
Paranoid about passing cert so i made reinforcement plates for each side
this one is not completed yet

Re: James 85 Z31 300zx - Rear Subframe Camber Mod IRS
Posted: Sat Oct 16, 2010 4:23 pm
by 85_Z31
I am nearly finished on this side, so now you guys get to see what the final thing looks like
its bad ass to actually see it coming together. there are a few kits you can buy to do the same job
but they cost heaps and I think Mine looks better.
Before anybody asks I will not be doing this for anybody even for real money, takes SOOOOOO LONG to get it right
Re: James 85 Z31 300zx Camber Mod - looking quite flash now
Posted: Sun Oct 17, 2010 1:56 pm
by 85_Z31
Been for a massive drive & tuning session around the port hills past sign of the keewee and out to diamond harbour
Probably scared a few cyclists just with the noise of it on full song along ( yes we were being responsible and not dickheads )
Had a Z32 300zx following us for a while but we lost him pretty fast
SUCH a cracking good day.
Definitely needs bump steer spacers to correct front end geometry it feels okbut the steering wheel shaking is getting a bit annoying.
Used tons of gas made tons of good noises on the hills.
SO dam happy with this car, so much power to pull up the hills and pass people, i have decided it has quite a lot of old skool brutal character with all the neat noises and clonks and pops and sounds it makes.
Re: James 85 Z31 300zx Camber Mod - looking quite flash now
Posted: Sun Oct 17, 2010 2:31 pm
by datman310
sound's awesome mate you have a done a great job, looking forward to catching up with you next weekend, ill pm you my address if you want to meet in rangiora on way out to akaroa next weekend
Re: James 85 Z31 300zx Camber Mod - looking quite flash now
Posted: Sun Oct 17, 2010 2:48 pm
by 85_Z31
Sounds good Steve It would be good to meet you in Rangiora and I can follow you out to Akaroa.
Re: James 85 Z31 300zx Camber Mod - looking quite flash now
Posted: Sun Oct 17, 2010 4:29 pm
by fast4motion
85_Z31 wrote:Sounds good Steve It would be good to meet you in Rangiora and I can follow you out to Akaroa.
You might wanna spend the week finishing your suspension mods and tuning, if you plan on following (and keeping up with) a B310

Re: James 85 Z31 300zx Camber Mod - looking quite flash now
Posted: Sun Oct 17, 2010 4:49 pm
by datman310
fast4motion wrote:85_Z31 wrote:Sounds good Steve It would be good to meet you in Rangiora and I can follow you out to Akaroa.
You might wanna spend the week finishing your suspension mods and tuning, if you plan on following (and keeping up with) a B310

i dont think he'll have any problem's keeping up
