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HQ Brakes

Started by _RayLx_ , Oct 23 2006 07:08 PM

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22 replies to this topic

#1 _RayLx_

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Posted 23 October 2006 - 07:08 PM

Currently doing a HQ front disk and caliper conversion and having some problem
with the caliper touching the cross-member on full lock.

Is there a way around this or is this something that comes with the conversion?

Thanks Ray.

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#2 _CHOPPER_

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Posted 23 October 2006 - 08:47 PM

I'll assume it's going on a Torry? I'll assume the calipers are at the front of the stub axle?

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#3 _RayLx_

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Posted 23 October 2006 - 08:52 PM

Yeah its on a torana (Lx) and the calipers are on the back of the stub axle, like HQ

Thanks

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#4 _CHOPPER_

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Posted 23 October 2006 - 09:02 PM

The first thing is, everybody else seems to have the calipers at the front when doing this conversion. Including GMH when they fitted them to the L34 and A9X. Second question is, what caliper are you using? PBR or Girlock? Cast iron or alloy? Four possible calipers there. Some fit better than others.

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#5 _RayLx_

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Posted 23 October 2006 - 09:10 PM

Using PBR Cast, Used them at the back to clear the tie rod end, i noticed that the hoppers stoppers set up has the caliper at the back to, just wondering if they have the same problem?

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#6 _CHOPPER_

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Posted 23 October 2006 - 09:15 PM

Look here.

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#7 _torana_

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Posted 23 October 2006 - 09:16 PM

sounds like you have your stub axles on the wrong side of the car. Swap them over so the calipers are on the front, otherwise if left on the rear the pads are dislodged on full lock when the calipers foul.

cheers julian

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#8 _RayLx_

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Posted 23 October 2006 - 09:31 PM

What calipers do u do u think are suited, cast or alloy.
so is this possible without the harrop arms?

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#9 TerrA LX

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Posted 23 October 2006 - 09:37 PM

yes, if you heat/bend the torana arms.

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#10 _CHOPPER_

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Posted 23 October 2006 - 09:37 PM

The $297 Harrop arms reduce bump steer. If you don't want your tyres chopped out and want it to have predictable steering during suspension travel, spend the cash.

dattoman will be able to list all the pros and cons for each caliper.

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#11 _RayLx_

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Posted 23 October 2006 - 09:50 PM

Dont want to heat/bend anything steering, just want to know if im able to fix the problem by griding a caliper.

Thanks Ray.

thanks chopper for the harrop info.

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#12 _CHOPPER_

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Posted 23 October 2006 - 09:55 PM

The thread shows in reasonable detail what needs to be ground off the caliper in order for them to fit. Unless I made a link to the wrong thread.

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#13 TerrA LX

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Posted 23 October 2006 - 10:22 PM

Edit my last entry; the correct jig helps.

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#14 dattoman

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Posted 23 October 2006 - 10:50 PM

PBR cast iron ones should fit on without mods (forward of the stub)

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#15 _RayLx_

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Posted 24 October 2006 - 10:20 AM

Thanks for the help.

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#16 micklx

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Posted 30 October 2006 - 11:56 AM

Try to find some UC Steering arms, they are a different shape and help with the geometry issue. They should also allow more clearance around the tie rod end.

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#17 _rorym_

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Posted 04 November 2006 - 12:15 PM

Mick, are the UC ones similiar to the Harrop ones? How much of the bump steer issue is rectified is the real question?. I have about 4 UCs sitting at the wreckers here.
R

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#18 makka

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Posted 04 November 2006 - 01:19 PM

Rory, the UC ones are about half way between the LH/X and the Harrop arms, I am going to chase up a set for mine soon, I can live with it how it is, but they are going to make it better for bugger all. I am going to change them around when I do my other front end mods and my rear end mods

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#19 _rorym_

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Posted 04 November 2006 - 05:32 PM

DaTTO TELLS ME tORANAMAT69 HAS PICS OF 4 STEERING ARMS ALL SIDE BY SIDE...HIS WEBSITE IS VERY INFORMATIVE AND TECHNICAL!!..bASICALLY i JUST WANT TO KNOW IF IT IS WORTH THE $300 FOR THE hARROP ARMS OR WILL THE uc ONES DO ON A RACE CAR? i KEEP THINKING ...BEING gmh..THEY WOULD NOT HAVE CAST UP SPECIAL STEERING Arms for the A9X..just looked in the parts bin until they got the right one...the question is...whats the right one.??
R
Shit!..Hit caps lock in there somewhere!

I have 4 UCs here at the wreckers so the $ is nothing.

Edited by rorym, 04 November 2006 - 05:33 PM.

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#20 _CHOPPER_

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Posted 04 November 2006 - 05:35 PM

GMH DID make special arms for the L34 and A9X. How much bumpsteer do you want in the race car?

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#21 _rorym_

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Posted 04 November 2006 - 05:43 PM

Chop
What I am trying to work out is the mm difference from the Harrops to the UC ones? I will be dialling in a shit load of Neg so I am wondering will I notice the difference?
R

Edited by rorym, 04 November 2006 - 05:44 PM.

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#22 _CHOPPER_

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Posted 04 November 2006 - 05:58 PM

Daniel at Harrop actually showed me one of their steering arms next to a UC one. There was a fair bit of difference. CRS used to make a kit to lower the tie rod end, maybe contact them?

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#23 _rorym_

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Posted 04 November 2006 - 06:08 PM

Again..how does it compare to the UC and Harrop? Waiting for Toranamat69 to come back to me with these pics..it includes a A9X one in the photo I am lead to beleive.
R