This is the roll center, suspension pickup, and steering angle modification thread.

[Apex Eight]

Originally Posted by Croustibat

I know, this does not answer your question at all, but you need to think about this before doing anything.

There are LOADS of mods to do that will give a better handling before that, and if you plan on competing, some classes don't allow this mod.

Basically the s14 subframe has less antisquat, but antisquat is dynamic and you already remove some by lowering the car. I think the TDP rear suspension kit actually adds antisquat...

Unless you already have quality suspensions, ball joints everywhere, front knuckle kit, sticky tyres and on and on (or are planning to), this really would be a waste of time.

I gotcha. It's just that I want to change out my subframe bushings one day and I was thinking about just getting an S14 subframe, putting new bushings in it, and just dropping my S13 subframe and swapping in the read to go S14 one. Thanks for your input dude!

[Croustibat]

Not saying there is nothing to gain, just that it is not that simple.
You need offset bushings to mount it too, usually made of aluminium. The studs are not exactly in the same place. Arms are also a bit different so you cannot exactly reuse the s13 ones without using shims here and there, or a little bit of grind. I think the diff casing mounting points are different too, not sure you can reuse an s13 one.

TBH i wanted to do it too a long time ago, but i kept the s13 one with new bushes because i could not be bothered. I am not competing with it so i don't need that little extra bit of traction. However i installed shims on the front studs, between subframe and chassis, to rotate the subframe a bit. I don't know if it has that much of an effect...

Best things i did that helped traction were tyres (got federal RSR), then torsen diff from an S15, then adjustable arms with ball joints, set to remove toe steer and not to bind on compression, then acceptable coilovers (fortune auto 500), then removed rear anti roll bar (this is down to personal preference though). I have maybe 280HP on my ca18det, and i can put all the power to the ground on 2nd gear now. 1st is tricky but i can manage it half of the time.

[TeamFRAT]

I just finished installing an s14 subframe into an R32. Had to get a little aggressive with the chassis rail due to the traction control arm bracket hitting.
I set the SPL bushings to 1/4" raised.

Installed new Battle Version arms and GK tech rear knuckles

Really looking forward to giving this all a try.

[sr23det]

^ what do you think of the welds on the gk rear?

[jaysgottaredtop]

They're fine as long as they don't break

...Or is this a show car thread now?

[az_240]

The forks on the suspension arms look a little off : /

[sr23det]

Originally Posted by jaysgottaredtop

They're fine as long as they don't break

...Or is this a show car thread now?

I have the same rear knuckles as u but received them 1month behind revised eta. a bit disappointed on Weld and fitment to jig unless it's deem good per gk. iF the same welds are on safety devices I will stay clear.

I like gk stuff but just disappointing to me

I'm gonna take Out the bearings media blast it then reinforce it.

[GKTECH]

Originally Posted by sr23det

I have the same rear knuckles as u but received them 1month behind revised eta. a bit disappointed on Weld and fitment to jig unless it's deem good per gk. iF the same welds are on safety devices I will stay clear.

I like gk stuff but just disappointing to me

I'm gonna take Out the bearings media blast it then reinforce it.

There is absolutely no need to reinforce the rear knuckles. They are by far the most over engineered rear knuckles for S chassis on the market. Compare the amount of sheet metal to PBM or Wisefab and you'll quickly see that thst is the case. The amount of sheet metal combined with the amount of FEA completed and we'll gladly warranty them for life.

The welds aren't visually amazing but you get that with a MIG. Again, happy to offer a lifetime warranty.

In regards to the jig, you'll find that they are identical from left to right.

[sr23det]

I'll take the lifetime warranty....I'll pm u other concerns I have because I do apreciate companies contributions to the Nissan family

[GKTECH]

Originally Posted by sr23det

I'll take the lifetime warranty....I'll pm u other concerns I have because I do apreciate companies contributions to the Nissan family

We're all for feedback so feel free to PM or email us anytime

[baube]

i've got front knuckles, looks like the rears. powder coat is a bit thin, but for the price / specs can't complain

[RalliartRsX]

Originally Posted by az_240

The forks on the suspension arms look a little off : /

My thoughts too

[GKTECH]

Originally Posted by RalliartRsX

My thoughts too

They're not. It is the design as it is to cater for both S13 and S14/S15 subframes which put the knuckle on a different axis.

The angle doesn't effect anything as throughout the range of travel the bearing (keeping in mind that there is a bearing there) is never binding. If it isn't binding it isn't an issue.

[GKTECH]

Originally Posted by baube

i've got front knuckles, looks like the rears. powder coat is a bit thin, but for the price / specs can't complain

It's not powder coat, it's zinc coating which is why it seems thin compared to powder coat

[GKTECH]

Originally Posted by az_240

The forks on the suspension arms look a little off : /

They're not. It is the design as it is to cater for both S13 and S14/S15 subframes which put the knuckle on a different axis.

The angle doesn't effect anything as throughout the range of travel the bearing (keeping in mind that there is a bearing there) is never binding. If it isn't binding it isn't an issue.

[baube]

Originally Posted by GKTECH

It's not powder coat, it's zinc coating which is why it seems thin compared to powder coat

That explains!

[TeamFRAT]

I have not set camber or toe in those pictures which will probably straighten out.

I am really happy with my GK products. I do not think there is any reason for concern. I have front knuckles from them as well. Waiting on the lower control arm combo they will be releasing shortly to finish up the front.

[GKTECH]

Another front LCA alternative

[TeamFRAT]

Just waiting for the release of those bad boys and ill be in business.

[TheRealSy90]

What lengths will the flca be available in? I'm currently running 1.5" extended s13 flca, and would like to retain that same width.

[GKTECH]

Originally Posted by TheRealSy90

What lengths will the flca be available in? I'm currently running 1.5" extended s13 flca, and would like to retain that same width.

They'll be 0 > +35mm and +30mm > +65mm over an S14 LCA length which is 9mm longer than S13 so you'll be fine

[e30gangsta]

Just ordered the gk tech rear knuckles, I hope they are worth it.

[PoorMans180SX]

Anyone have results from their GKtech rear knuckle experience?

I'm going to write a large review thread about my front TDP kit here soon.

[az_240]

^Also super interested... Just holding off on buying them because I don't want to make the same mistake I made with DW and PBM knuckles when they first came out

[Tearlessj]

Originally Posted by PoorMans180SX

Anyone have results from their GKtech rear knuckle experience?

I'm going to write a large review thread about my front TDP kit here soon.

I think i'm now interested in the TDP kit. Does it come with a new mount to move the top of the coilover outwards?

[e30gangsta]

I haven't received mine yet. Once I get them in and install them ill post my review here.

[GKTECH]

We're now on to the 5th batch and sold over 200 pairs of the rear knuckles. Batch 5 has a few small updates for more axle clearance, some more strength to the toe arm (wasn't required but was easy enough to do) and relocation of the strut mount a little further out and up (for more clearance and strength). Overall we are really happy with all the feedback that we've had and very confident that any potential issues have been ironed out. The current pre buy pricing will be ending in around 2 weeks time once batch 5 is complete and on the shelves.

[e30gangsta]

How do you know if the arms you ordered are batch 5? pmed

[GKTECH]

Originally Posted by e30gangsta

How do you know if the arms you ordered are batch 5? pmed

Replied. Any orders made within the last 6 weeks or so will be in batch 5, the order will also have batch 4 listed on it.

[godrifttoday]

Dammit so I'm screwed I bough second batch