4 Wheel Steer Nissans

[mick.]

Hello all well I'm a newby who is after some help for a new project I'm building.

I building a new comp spec 4wd which will have 4 wheel steer. I've been told there where some Skylines and possibly other Nissan's that had rear steer. I'm just wondering if anyone can help me out with what makes and models have this as factory as I'm looking for a power steering pump out of one as it makes doing this mod a little easier. It would also make finding what I'm looking for easier on eBay. BTW it's going in a Nissan patrol so I'm not jumping ship.

Any help would be greatly appreciated.

Cheers Mick.

[30three]

R32's have the hicas (4 wheel steer) pump standard, not sure if its all models. i'm sure some else will elaborate on this.

[sh@un]

it worked by deflecting the hubs via a hydraulic rack/ram to simultaneously steer the rear wheels in either direction depending on speed (counter at low-speed and in sync with the fronts at high). was really just a marketing gimmick though- every keen driver just fits a hicas canceller bar/kit

would be of largely negligible benefit if your aim is to make your fourby more manouverable in the bush, and would be monstrously difficult to adapt seeing as you'd need to use an axle setup on the back with steerable hubs (apart from everything else)

[Duncan]

now we are talking....sounds like a good project.

there are 2 basic types of rear steer on skylines etc.

32 series ran hydraulic rear steer using a big ram between the rear hubs driven by pressure from a 2 stage power steer pump at the front.

later 33/34/35 run electric rear steer.

But in any case they only turn a few o which in unlikely to give you what you need. what sort of competition?

[Duncan]

and to elabourate....the rear hubs only turn on their bushes as well (multilink setup with normal cylindrical bushes). front obviously has swivelling joint at the top of the hub and ball joint at the lower control arm to allow proper range of movement

[mick.]

Thanks for the quick response fellas.

It's a very common mod in our sport and the pump will need some modding but it gives us a pump that can handle the 4 wheel steer. I'll be getting around the 25 degrees of steering in the rear and about 30 degrees in the front. Both will be full hydraulic steer to help turn the 42 inch tyres i'll be running.

Have a look here and you will see a couple of pics of the tracks and trucks. http://www.tufftruck.com.au

Cheers Mick.

Edited April 14, 2009 by mick.

[mick.]

So would I be right in saying this is that pump I need?

http://cgi.ebay.com.au/Nissan-Skyline-R32-...A1%7C240%3A1318

Cheers Mick.

[Duncan]

yeah that looks like the 2 stage 32 ps pump.

I take it that it is only the pump you are using? the rest looks totally irrelevent for what you need.

the trucks look excellent, I love all the custom work in it.....got more close up pics of the chasis

[iseekool]

Appologies to cut in - R35s don't have HICAS or are you refering to the V35s?

now we are talking....sounds like a good project.

there are 2 basic types of rear steer on skylines etc.

32 series ran hydraulic rear steer using a big ram between the rear hubs driven by pressure from a 2 stage power steer pump at the front.

later 33/34/35 run electric rear steer.

But in any case they only turn a few o which in unlikely to give you what you need. what sort of competition?

[Duncan]

hey I was thinking M35 but I guess v35 might have it as well. bit sad to hear they dropped hicas on the r35 though after 20 something years across so many models

[mick.]

yeah that looks like the 2 stage 32 ps pump.

I take it that it is only the pump you are using? the rest looks totally irrelevent for what you need.

the trucks look excellent, I love all the custom work in it.....got more close up pics of the chasis

No not really mate only when there on there side.LOL

I'll be doing a full build up thread on a couple of the 4wd forums when the rest of my bits start to turn up. Heres a link to my old build up which should have some chassis pics. http://www.downunder4x4.net/forum/showthread.php?t=2249 This one isn't as seriously modified as what the new one will be though. I've got to try and sell my old rig first though as it's taking up space.

Cheers Mick.

[Duncan]

fark 68pages....I'm out for a few hours i think

[bozodos]

I read this thread and thought "rock climbing!"! Cool idea, so I'm guessing that this type of adaptation has already been done on Patrols before?

[mick.]

I read this thread and thought "rock climbing!"! Cool idea, so I'm guessing that this type of adaptation has already been done on Patrols before?

Yes mate it's a common mod on a lot of comp 4wds these days. I don't know how many guys use these power steering pumps as I think a lot of blokes spent a heap of money on have one made to suit. I spoke to an engineer (fellow 4wder too) who has done this mod heaps of times and he said the most reliable and cheapest way was to use one of these pumps. He just couldn't tell me where to find the info on what Nissans had them and what didn't.

I just couldn't believe how quick a response I got here and it has saved me heaps of time trying to work it out myself.

Cheers Mick.

[mick.]

I've just bid on a Z32 300ZX TT power steering pump that looks the same as the one in the above link. I hope it is anyway.

[funkymonkey]

wouldn't you be better off getting an electric HICAS rack (R33, R34 etc) instead of a hydraulic one (S13, R31, R32, 300ZX etc)?

I've got a HICAS assemby off my R32 you can have for free if you're in VIC. Took it out so the rear would stop twitching.

[mick.]

wouldn't you be better off getting an electric HICAS rack (R33, R34 etc) instead of a hydraulic one (S13, R31, R32, 300ZX etc)?

I've got a HICAS assemby off my R32 you can have for free if you're in VIC. Took it out so the rear would stop twitching.

I'm in NSW but thanks anyway. It has to be hydraulic one aparently. I have no idea how it's actually getting set up, i've just been given a list of things I need to get and thats about all I know.

The hyrdraulics will run the suspension and steer to both diffs. This part of the build is way out of my league but hopfully i'll learn about about this as it gets set up.

Cheers Mick.

[Duncan]

don't know if the 300zx had hicas. just make sure it has 2 outlets like the pic you posted before

[mick.]

don't know if the 300zx had hicas. just make sure it has 2 outlets like the pic you posted before

Yes mate it does.

Cheers Mick.