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HICAS on R32

Roy

By Roy,
in Engines & Forced Induction

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Roy Grand Master

Roy

Posted
Posted

Im ripping out the rear steering rack on Wednesday and locking up the rear, so no more HICAS.:D

I understand that i have to remove the bulb from the dash to stop the warning light. Does anyone know of a way around this, as i would like to keep the warning light, as the front steering will obvoiusly still be connected.

Driving on circuits for 20mins at a time how hot is the steering fluid likely to get. I was thinking instead of bypassing the fluid that goes to the rear rack, i may run a small oil cooler to keep temps down.

Also how does the HICAS know the rack has been removed and fluid bypassed, i assume its some pressure sensor, would the pressure drop accrosss the core of the cooler fool the HICAS into thinking the rack was still there. I doubt it but not sure what kind of signal is used to out HICAS into fault mode

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Clint32 Mentor

Clint32

Posted
Posted

what are you going to replace the hicas rack with?

i dont think there will be a problem with some of the stuff removed, i have unplugged a couple of plugs for the hicas pump and it dosent affect anything. I removed the steering sensor so mine dosent work at all with no apparent side affects.

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drifto Collaborator

drifto

Posted
Posted

G'Day Roy, I just bought an R32 GTS-T that someone spent a fortune modifying. He had a Tomei system installed that stops the rear steering from the Hicas. It also uses something bolted to the rear rack to lock it solid. Sorry I don't know much more yet but a Tomei supplier may have the whole kit. I think it was intalled at East Coast Suspension Kirrawee, ask for Dave.

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Roy Grand Master

Roy

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Yeh been meaning to get my car over to East Coast for some time, but is nowhere near where i live. Plus Whiteline did all the susp on my car and they are a little closer so ill stick with them (Whiteline and Jim are great operators, but wanted to try East Coast on the referral of my mechanic whose cars may not always have huge HP, but always handle real well)

The tomei kit actually has shims that are placed either side of the rack whereby removing any slack (locking it up) and also an interceptor module for the HICAS computer.

I have gone the other way, i will be removing the heavy rack, and ancillary pumps etc for the rear steer and replacing the rack with a tapped bar to screw the tie rods to.

Hopefully save a few kgas as well

I know a lot of people simply unplug the HICAS but i dont like this idea as there is till play in the rear steering? Oh just remembered i have some pics of the Winfield GTR, i may look at how they removed the 4WS.

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