R32 GTS/GTST non driven wheel speed

[Looney_Head]

Hi People,

has anyone come up with a way of getting non-driven wheel speed on a R32 Gts/gtst? from what i've seen the RWD R32 didn't look to come with ABS, if they did i can't find a rwd ABS front knuckle anywhere.

is it a case of putting a S14/R33 front knuckle on and then modifying the ASB ring to suit a ECU input frequency limit? or have people managed to get a hall sensor onto the back of the hub and pick up the wheel studs?

 

i've searched but there isn't anything that I could find.

[bcozican]

there are probably many ways to do it

for my bosch motorsport abs we used a r33 gtst abs front knuckle and modified the rear knuckle to allow sensor to sit and read

understand time, effort and $$ but reading from anywhere else  you get diff chatter etc where you lose 30% ish in signal clarity compared to the above

[Looney_Head]

Sweet thanks mate, I did wonder if its easier to try and find a R33 knuckle and make that fit, is it just a case of changing the lower ball joint?

I'm getting drive wheel speed off the gearbox speed sensor which is fine so far to 230kph

[bcozican]

19 hours ago, Looney_Head said:

Sweet thanks mate, I did wonder if its easier to try and find a R33 knuckle and make that fit, is it just a case of changing the lower ball joint?

I'm getting drive wheel speed off the gearbox speed sensor which is fine so far to 230kph

correct Ive moved to a r33 oem ball joint - they are actually thicker than alot of the after market and similar 

[Komdotkom]

Get r32 abs uprights? That's what I have on my car. I've got some new tone rings if you want them. I just run a gt101 in the abs hole, pretty simple. 

I can get you some pictures on the weekend if you like

[bcozican]

16 minutes ago, Komdotkom said:

Get r32 abs uprights? That's what I have on my car. I've got some new tone rings if you want them. I just run a gt101 in the abs hole, pretty simple. 

I can get you some pictures on the weekend if you like

Yeah agree but probem is you cant find any!  Not many made in the first place and now like hens teeth

[Komdotkom]

I don't know if the hubs are different but it would be pretty simple to machine the sensor hole.

If you want a set my hubs finally arrived for my billet uprights so I have a spare set

[Looney_Head]

Thanks Komdotkom, I would take you up on that offer, but the cost of shipping to NZ would be horrible. 

[Roy]

Another complicated thing is to run Z32 alloy hubs which have wheel speed sensors for ABS. You need different tie rod end, and you need new bearings on the upright etc. I did that as part of a major refresh when my front kingpin bearing flogged out., Alloy was a little lighter, runs a bigger bearing , gives a few extra mm in wheelbase as it moves the wheel forward in the arch (cant run crazy but can still get 8ish comfortably).

 

All in all glad I did it but was a head fark as tried it once and abandoned it the first time. sav man swung his spanners at it and got it working so using his guidance on GTR/Z32 tie rod ends etc and the required mismatch of parts was able to make it work.  Probably a 2k upgrade all said and done :(

 

I think the best bet is just look around your front wheel and see what you can pick up rotationally. You see old Escorts, E30s etc all get very creative with front uprights and the humble old angled alloy bracket.

[Looney_Head]

thanks Roy, i did look into z32 front knuckles but saw it was a ballache so didn't bother. my local nissan parts dealer says he has a R32 ABS gts front knuckle, so i'm going to investigate that and see what it is.