"steering is pretty straight forward" and left and right

4, where is the rob rotor?

Today Rob teaches us that most English is words.

Rob at high speed (60mph +) the Z and the GTR change the direction the wheel turns, so if you turn left the rear wheel also turns left. Imagine a high speed lane change it keeps stability rather than pushing the back end wide. Low speeds it turns the other way to turn harder without losing grip. The GTR system is more complicated than the simple system on the Z :)

Next video: I let parker drive my R32 and he took off my rear wheels to look at my aws mechanism and he didn't tighten the lugs all the way when he was putting them back on.. my wheels fell off at 80mph when he was reviewing it and now he is running away to California so he doesn't have to pay for the damage.

tie rod end might need to be replaced on the rx7?

I shotgun a beer every time I hear Rob say rudimentary.

It's 2017 and people are still asking why it's 360p...

In this video rob spaghetti explains why the r32 is one hell of a car

I used to be a fan. Now I'm an air conditioner

The r32 is now considered a Heritage car and the Nismo division will now sell new parts for them! That has to be the most amazing news to hear when you got a r32 sitting right in front of you.

I remember reading about this in a German auto magazine :) It is a system that works depending on the speed you are going at which is quite remarkable considering the time this car was made :) Sadly I don't think I still have that magazine :/

It's called HICAS (High Capacity Active Steering) and upgraded to a SUPER HICAS system it was available on the Nissans of the late 80s and early 90s. what Rob filmed was sidewall deflection, look closer and the entire sidewall of the tire moves to the inside. I think the hicas system on his is bypassed. plug in the car and put it in diagnostic mode

That "jdm" tire/rim looks like a bike tire

If you turn steering wheel left to right 90 degrees each direction 5 times then hit brake 5 times it should enter hicas diagnostics mode and you can see rear wheels turning while parked 😁

"A lot of words here, but most English is words" -Rob Dahm, 2017

Great video as always. Awesome meeting you yesterday too!

The R32 has HICAS, something Nissan put in almost all their sports cars in the late 80s up to early 2000s. Though later R33 & later had Super HICAS which went from an oil actuator to electric. Strangely the R35 removed this feature...even though the current Infiniti Q70 still has it.

"Turning is pretty straight forward"..

Galant VR4 had 4WS that only worked above 30mph, and turned with the front wheels up to 1.5°. It felt weird, and most people deleted it due to leakage, inoperability, or cause it felt scary. I think there's a reason most OEM's try rear steer for a year or two then stop - it might took great on paper, but IRL maybe not so much, just like the early 90's automatic door tracking seat belts...

the few people i know with this did the HICAS delete because it tends to leak like a sieve depending on mileage/age

Your a good bloke now, seeing you can speak Australian and drive on the correct side of the car. Cheers mate. 👍🏼.

Now as you watch me turn the steering wheel you will see the steering shaft turn, as well as down below you will see the.. Oh.. I need a new tie rod end..shit

Looks very similar to my 3000GT VR4's AWS. Funny thing tho... the spare wheel looks exactly the same in design to the 18" VR4 spare. It totally feels like the rear is sliding INTO the turn when it activates... works but feels odd, like driving a forklift with RWS.

I prefered Your videos without all that music. It's unnecessary for content this good to make a video good!

most english is words -rob dahm

Easiest way to see if your car has HICAS is look for the rear steering rack lmao. On the 300zx HICAS only works at 55+MPH on turn in. There is a diagnostic mode to make it work while park

In the R33 the back wheels turn in the opposite direction at slower speeds (like in your vid) and kind of rotate the car but at higher speeds they can also point the same direction and crab across a lane. Would be god to set up the camera again and see what happens.

Now time to throw a Hicas lockout bar on it and call it a day...

If it's anything like the 4 wheel steering that was found on the 3rd generation Honda Prelude, then all you had to do to get the rear wheels to turn was start the car and turn the steering wheel while the engine was running. A friend of mine had a 3rd gen prelude, and that's all he had to do to show that it had 4 wheel steering. Considering that the 3rd gen Prelude was the first car to have 4 wheel steering, and the R32 came out in roughly the same time period, I wouldn't be surprised if the R32's 4WS system was similar to that of the 3rd gen Prelude.

You probably should know but I guess the video title would suck if it was: Skyline all wheel steering explained, or would it? A quick info about how HICAS actually works. The system activates when you are going around 80km/h or faster. It turns the rear wheels to the same direction as the front so if you turn left, the rear of the car tries to take itself closer to the corner which prevents oversteering and makes the car feel snappier/quicker on the corners when you maintain traction. In detail level the system might have a bit more to it when initiating turn or if the car detects some movements but that's basically it. The car fights oversteering by holding the rear in the corners. If you raise the car with lift so that the wheels spin freely and give it gas you can film how it works and there already is youtube videos about it. I owned a gt-r and now an R32 sedan with HICAS also.

Super Hicas is an electronic version of the Hicas that is controlled by electric motors or servos rather than being hydraulically controlled. Honda was first with this set up on the Prelude before the Nissan. Honda's system was actually superior but was over looked due to racers placing more emphasis on Turbo and power rather than control.

I gots HICAS!

Way ahead of its time

feels like I'm a child again. those explanations about whats an apple and pear

Only problem with the HICAS steering in the 32's is that it often will fail causing the rear of the car to steer at seemingly random times and has caused accidents previously. That's why so many people to HICAS deletes in them

Rob that's what's called sidewall flex bud

Time to pull that Dahm hicas system out of your GT-R!

Your new videos are dope. Keep them comming bro.

At higher speeds it's supposed to turn towards where you are steering. Cornering hard left it turns the rear wheels left to hold the car in neutral steering insted of oversteer or understeer. Could you make a video of this also? Becouse this is what I have been told by the japanese masters of Tsukuba in some random Option videos :D

In my opinion 5:32 looked like the tire was just deforming. When I watch the rim while cornering, doesn't look like it steers at all. (maybe it just steers so little that its difficult to notice?)

I honestly didn't know about this 4 wheel steering, thanks

This is the only car in the Rob Dahm fleet that doesn't break down or needs to be towed

So at highway speeds, do the rear wheels turn in the same direction as the front wheels? I think BMW has it where in parking lots you can have sharp turns, but on a highway you can merge lanes more smoothly.

It's called the HICAS system... took me about ten minutes to find the feature back in 08 when I first got my Skyline. Wasn't hard to find out like a needle in a hay stack. Most Skylines, and pretty much any Nissan performance car made in the R32 era had it. But majority of Skylines that come over tho have is disabled / removed. since they were either A) Drift cars, or B) Toy cars taken to the track. The system would take quite the beating and the foot work would break, or cause issues, hence the removal. I had a sedan, and it was still enabled. Although, didn't really notice it making a difference really. I guess I wasn't going fast around corners enough.

Most all wheel steering setups wont work when the car is off regardless of the sensors because there is no mechanical linkage. The front wheels have power steering and manual where the rears only have power steering. Its the same as a fully hydraulic steering setup that some people put on trucks, it doesn't work when the engine doesn't have power.

even the Chevy Colorado truck had 4 wheel steering on select model years early in it's production. Also, as is apparent to anyone who's watched monster trucks, those trucks all have 4 wheel steering to make tight turns.

it's called HICAS. It's not mysterious, it was also offered in some S Chassis. Most people disable it using a HICAS lock bar.. it's not a very effective system.

Watching this and seeing Rob now is so weird from talking about gtrs to making his own rotaries

Porsche and BMW have this too. But its on all the time. When going under 30kmh the rear wheels turn the opposite of the front. But once over 30kmh the rear turns along with the front. I think a few new pickup trucks have it too

Fine. I'll order a damn shirt. I can't afford gas right now but that shirt is absolutely worth it. 😂

personally it just looks like the tire is being sucked inward from traction, id like to see a camera view of the rear steering rack itself while going around turns

The HiCAS on the GTR are disabled by many hard core drivers to facilitate drifting (as drift became a phenomenon ) and and to hide the problems (as they aged and developed problems) when it comes time to selling them. Because 4 wheel steer counters the rear wheels losing traction and control these drifters would disable them giving rise to the incorrect perspective that 4 wheel steering does not work since hard core racers disable them.

God dahm you're good at explaining

In the slow mo it looks more like the tyre stretching under load rather than the wheel turning. Try the same turn in the same way but put the camera on the front side of the tyre facing backwards. If the tyre still goes in it's tyre stretch if it goes out it's steering.

Track rod end needs replaced. Also you've confused the HICAS with the ATESSA. One being rear wheel steer, and the latter being rear to front torque split. Check your gauge above the stereo.

Today Mr. Spaghetti tells us about his spaghetti steering.. Oh wrong channel XD

Is it not because the engine was off, there was no oil pressure to move the rear rack?

"Most English is words" Woah........ Just WOAH, mannnnnnn That deep, yo!

Hicas is what helped make this car a handling legend in the 90s

Bro this is really detailed I must say its good for research

I think this the first video I ever have seen of you 😂 👍🏼

I remember when GM had quadsteer on their trucks, awesome option but very expensive when it broke down.

A pool of information as always rob ❤️

the rear wheel steer was there for when i raced against ford and holden so that it could get grip in the conners

The Honda Prelude has all wheel steering but it's only a fwd with a much smaller motor. If someone put a rb26dett or LS3 (if a v8 even fits) and made it into awd that thing would be pretty good on the track.

My gts-t type m has 4 wheel steering. It's hydraulically actuated. Car has to be on and running and it's a few degree difference. It doesn't just work if there is a "problem".

It's not confirmed, but to my logic, rear weels stearing doesn't work when engine is turned off because they are moved by oil lines connected to power steering pump. Engine not moving = no pressure from pump = no force to move wheels = no all weel steering

Teach it, Rob! Never knew it, learned something new.

So is this kind of like what monster trucks have, but on a much smaller scale? Monster truck drivers can control both the turning on the front wheels along with the rear wheels.

Here's how it works: HICAS only activated over 60 miles per hour. ATESSA is hyper active (I believe). My R32 has HICAS, so that's really what I'm educated on.

"Turning is pretty straight forward." -Rob Dahm, 2017.

Rob, everyone knows the R32 has all wheel steering, but everybody hates it and decides to delete this 'hicas' system (that's what it's called). The reason being when you're going around a corner the hicas system can engage causing the car to rapidly 'snap' in a direction which has thrown a lot of people in gtr's either off the road or close to doing so. So most people opt to delete it so that the car remains predictable.

thanks for posting.

I used to be an air conditioner but now I'm a fan

Now if you look at the front side of the rear wheel, you'll see that wheel itself doesn't change its angle. The side mowement showed on this footage it's the tire mowing sideways because that's what flexible tires do. And you also can see it on the front side of the wheel

When you said 'GTR' in Australian, it reminded me of Amy Sangster lol

Gotta love the mall parking lot lol so much room be great for car meets

Was about to comment and say this is the attesa system, but something wasn't quite right... Lol It's called (Super) HICAS, I knew I'd seen it before, it only works under speed(s). Here's a little excerpt from wiki (lol) "HICAS was introduced on the 1986 (HICAS was almost used on the 1985 model but was not ready in time for production) Skyline GTS coupes (GTS, GTS-R, and GTS-X). The system was later adapted to work on many models in the Nissan range, beginning with the Passage GT. Earlier models of HICAS (hydraulic versions of HICAS) did not depend only on the high speeds using the speedometer but were used to maneuver at lower speeds through obstacles. After disabling HICAS, it has been noted that slow maneuvers including parking and quick response steering seemed more difficult.[citation needed] Earlier HICAS versions used hydraulics to steer the rear wheels. The hydraulic system was powered by the power steering pump and used speed sensors to determine how much and in which direction to steer the rear wheels." "Later versions, called Super HICAS, moved to an electric actuator for the rear steering rack, making the system much lighter. The Super HICAS system also used its own computer to control the system instead of speed sensors.[3] HICAS and Super HICAS rear wheel steering is limited to about 10 degrees in either direction." Still used today in G37 and Q45 etc.. Interesting stuff, the jeedeeahh was wayyy ahead of it's time... I really do need to pickup an R32 myself, think I might settle for a GTS-4 though, little RB20 to rev the piss out of...

Rob are you sure its not the same setup as the VR4 that activates at a certain mph? the VR4 kicks in at 30mph if I am not mistaken. Same type of hydraulic power rear steering. You can stick a vr4 on blocks and watch it kick in via mph.

awesome lesson man!

that spare wheel is OEM? Thing actually looks kinda sick

there is a self diagnosis for the HICAS with the R33 GTR. turn on the engine, turn the steering wheel 5 times left and right (left-right-left-right-le...), then push the brakes 5 times, HICAS lamp starts blinking, another one on the breaks to activate blink code diagnostic, then about 5-6m very slowly forward, brake... and the rear begins to wiggle :> i don't know if that works with the bnr32, because its HICAS is hydraulic and the bcnr33 has super HICAS (electric).

i thought this was quite common knowledge, afterall there are quite a few override systems for the rear wheels, as this hinders more "advanced drivers" mainly in racing.

"Most English is words" - Rob Dahm You are a Gentleman and a Scholar

It's crazy to think this car was that engineered back in the 80s and 90s, but those methods are not used as much now.

Rob is at the mall of Monroe !!

great video Rob

having a hard time coming up with fresh content eh?

That RX7 spare tire can literally be used as a motorcycle front wheel except if you want to knock Death's door sure you can use it for the rear

Those tie rod end on the rx7 are shot , stay safe Rob !

That is so cool. Great explanation Rob!

it's called Hi-CAS. It's controlled by the thing on the top left by the steering wheel. Most people unplugged it though cas it always broke.

Interesting! Gotta say the VR4/6 AWS makes more sense, since it helps when parking

Had HICAS on my 89 Silvia K's. Was the weirdest thing turning in a corner for the first time.

u should do this again at highway speed and see if all 4 wheels turn the same direction or still counter steer. obviously im not suggesting an 80mph hairpin but im sure u have a curvy highway section or higher speed backroad near u

In this episode Rod discusses the latest technology from 1989.

Rob, At least you have not been stereotypical and said: "MY GTR NEEDS TO BE FIXED(very bad)"I respect you for not putting stupid, idiotic titles in your videos. Great Video.

there should be a code you put in that allows you to test the steering without moving the car, at least thats how the 300zx was.

correct me if i'm wrong, but I don't believe you need to loose traction for it to work. also, at low speed it is against the way you are turning decreasing your turning radius, and at speed on the highway it will be with the direction you're turning for a faster lane change. unless the high speed is only on the super hicas, i'm not sure about that.