126 replies to this topic

[76lxhatch]

I think the ride height is the key, here is a photo of mine as per above description, at ride height with full right lock:

(my calipers are black so not as easy to see but there is at least 15mm of clearance)

 

This is with the left steering arm on the lower control arm stop:

 

Please excuse the camera angles, its hard to get under there.

 

The only thing is I think dattoman's comment about caster making a difference is true, because I don't remember there being quite that much space. However there was definitely still clearance at around 1.5 to 2 degrees caster at ride height, I checked this carefully when I installed them.

 

I understand why you wouldn't want to cut the cross member, based on the above I think things will fit OK. If you still have problems then perhaps adding steering stops may be an option? Toranas have a little more lock than really necessary, particularly with standard alignment settings and limited grip they will tend to sledge if you use all the lock doing a three point turn for example.

[ls2lxhatch]

Would using the UC upper arms change this any do you think Andy ?

Looks like its on the ground.. but is it loaded ?

 

According to later posts the suspension is at full rebound.

 

There are quite a few variables affecting caliper position.

 

UC arms do increase the available caster and the way the caster is achieved so it would have some affect on the position of the caliper.

 

Increasing caster will tilt the caliper towards the back of the car.

Increasing negative camber will tilt the top of the caliper towards the k-frame.

 

Full lock at full compression is not possible as the tyre will hit the guard longer before full lock is achieved.

Full lock at full rebound is possible.

 

The suspension may be getting more rebound than stock. The mounting point of the upper control arm pivot and the bump stop fitted to the upper control arm will affect the amount of rebound travel available.

 

It is also possible that the red suspension bushes have collapsed which would move the lower control arm in. It wouldn't be the first time that red suspension bushes have failed before the car got on the road.

Edited by ls2lxhatch, 19 June 2013 - 12:56 PM.

[StephenSLR]

It is also possible that the red suspension bushes have collapsed which would move the lower control arm in. It wouldn't be the first time that red suspension bushes have failed before the car got on the road.

 

I've had them crumble on me, car was sitting in the garage for a few years and they just went all powdery and disintegrated when I got it back on the road.

 

s

[lx008]

Is there any increase in the track width using the Hoppers kit?

[Lc69]

Not on the LC/LJ.
Marginal if any difference.

[TORLX8]

8mm each side on LX apparently

[kiwilx]

Hi All
Has anyone experienced the flexible brake lines pinching on the stub and upper control arms at full lock? I seem to lose my brake pedal at full lock and this is about the only area that clearance seems to be a problem when I have a look. Car is LX RTS lowered on Kings springs (not slr ones). Pretty sure the lines were installed as per instructions with cable tie to the stub (amazed NZ certifier let this through as its a big no no for brake lines over here according to the mod manual) so I'm a bit stumped but not so keen to lose pedal every now and again. Every other brake system component has been replaced or reconditioned so there aren't any other weaknesses that I can see
Cheers

[kiwilx]

Hi all
Further to note above, it appears that the brake lines are fine, the caliper hits the top suspension arm before my steering stops hit so caliper gets a shove and I lose brakes momentarily on one side and pedal dives. Has anyone else experienced this?

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[rexy]

What setup do you have?

[kiwilx]

Hi Rexy

LX RTS lowered on Kings low springs. Other than that, all std.

Thanks

Liam

[rexy]

Apologies, I meant what brake set up do you have?

[kiwilx]

Sorry, misunderstood.

290mm kit, hubs with pbr 2 pot calipers and vented slotted rotors.

Cheers

[rexy]

Calipers on the front or rear?
I have the same setup on my hatch with the calipers on the front. There is a heap of clearance.

[kiwilx]

Mine are on the rear as per the instructions with the stubs swapped sides. The calipers are taking paint off the back of the top arms so must be giving it a good clip. A
Its all thankfully been at low speed when I lose pedal and brake pressure but it is a little unsettling.

[Bigfella237]

 ~ Its all thankfully been at low speed ~

 

If you're on full lock at high speed you have bigger problems!

[rexy]

Have you done the swap around yet?

[kiwilx]

Have you done the swap around yet?

As in rear to front? No. I'm going to have a good look to see why it is hitting the caliper before the steering stop as that is about 5mm off the arm.

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[lx008]

deleted.

Edited by lx008, 26 February 2021 - 02:58 PM.

[lx008]

8mm each side on LX apparently

 

Anyone know for a fact that the Hopper's kit increases the track width?

[TORLX8]

Anyone know for a fact that the Hopper's kit increases the track width?

I have just purchased a Hoppers kit, but not yet fitted.
They tell me track width will be increased by 2.5 mm per side now.

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[lx008]

I have just purchased a Hoppers kit, but not yet fitted.
They tell me track width will be increased by 2.5 mm per side now.

Sent from my Moto G (5) using Tapatalk

 

Thanks for the reply!... When you get the kit fitted please let us know of any track width increase.

[TORLX8]

No probs mate.

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[ls2lxhatch]

Hopper used to supply two versions of the 290 mm AU twin piston kit.

 

One version used a hub with a 8 mm offset to suit the offset used on Commodore stud pattern rims. There was also a standard offset hub that was supplied with Torana stud pattern.

 

This is a picture of the Hoppers 290 mm AU twin piston set with Commodore offset. You can just see the larger silver spacer between the caliper and the caliper adaptor. 

 

The extra 8 mm offset gives better clearance between the caliper and the control arm on full lock but could be enough to cause tyre clearance problems if you were not replacing the rims.