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XK8 / XKR ( X100 ) 1996 - 2006

Amazing What 4mm will do...

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Old 02-16-2012, 10:22 AM
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Talking Amazing What 4mm will do...

Before and after of the 4mm shim on the right axle for the camber issue after lowering springs were installed.
Looking a little tipsy to the inside haha. That's about -2.32 degrees...

Ahhh, that's better. Should be at -.72 now. Will find out next week lol. With two 4mm shims on the studs they have two threads showing. Hooray for lock nuts!

Just gotta nudge them in the right place sometimes.
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Old 02-16-2012, 11:08 AM
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A Significant difference,,, Looks so much better and now it is a JOB DONE RIGHT...

I always feel better when the job is done to perfection... Skid now is a perfect time to pull up a chair,,, ADMIRE YOUR WORK,,, and have a CIGAR...
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Old 02-16-2012, 11:58 AM
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Good Job. I was also amazed that an extra -1.xx degrees would make such a difference in looks as if you were transporting concrete, it looks classier again now.
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Old 02-16-2012, 12:56 PM
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Looks like it was very necessary indeed. Thanks for the pics, they're speaking by themselves.
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Old 02-16-2012, 05:47 PM
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Thanks guys! It really was amazing when the lift came down and she settled on the ground. One glance and I knew we'd struck gold.
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Old 02-16-2012, 11:14 PM
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What springs did you use? and how much did it lower it?
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Old 02-17-2012, 01:18 AM
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Skid;

"With two 4mm shims on the studs they have two threads showing. Hooray for lock nuts!"

I don't understand are shims the same as spacers?

Are you saying you put two 4mm spacers per stud on each front wheel, for a total of 8mm per stud?

It can't mean only two spacer/shims per wheel.

Aren't you supposed to use longer lug nuts if you install spacers for safety reasons?

Two threads showing doesn't sound like enough for full and safe attachment of the lug nuts even with lock nuts or for spacer/shim plates?

Lock nut / lug nuts?

I put 5mm spacer plates on the front of the MINI so the smaller 15 inch winter steel wheels would clear the brake calipers and had to use longer lug nuts so I have a hard time imagining that you are safe with the much thicker alloys you have there.

They look great.

What did you do with the old set of wheels Detroits aren't they?

Were they 20 inches?

What are these new wheels called and size?

You are going to have to change your signature photo now with a 'new defensive posture'.

easily confused and technically challenged,

jj

Last edited by jamjax; 02-17-2012 at 01:21 AM.
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Old 02-17-2012, 05:07 AM
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@jamjax - other end of the car
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Old 02-17-2012, 07:04 AM
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Quote:
Originally Posted by jamjax View Post
Skid;

"With two 4mm shims on the studs they have two threads showing. Hooray for lock nuts!"

I don't understand are shims the same as spacers?

Are you saying you put two 4mm spacers per stud on each front wheel, for a total of 8mm per stud?

It can't mean only two spacer/shims per wheel.

Aren't you supposed to use longer lug nuts if you install spacers for safety reasons?

Two threads showing doesn't sound like enough for full and safe attachment of the lug nuts even with lock nuts or for spacer/shim plates?

Lock nut / lug nuts?

I put 5mm spacer plates on the front of the MINI so the smaller 15 inch winter steel wheels would clear the brake calipers and had to use longer lug nuts so I have a hard time imagining that you are safe with the much thicker alloys you have there.

They look great.

What did you do with the old set of wheels Detroits aren't they?

Were they 20 inches?

What are these new wheels called and size?

You are going to have to change your signature photo now with a 'new defensive posture'.

easily confused and technically challenged,

jj
They are rear alignment shims for camber, they go between the differential and the axle. The axle acts as the upper control arm, so it pushes the top of the wheel out when shimmed. Jaguar installs 4mm shims at the factory, so I added mine to theirs. They recommend not having more than 7.5mm of shims on the studs, I now have 7.5 on the left and 8.0 on the right. Both left and right side studs show two threads, which is perfectly safe.
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Old 02-17-2012, 07:18 AM
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SM;

Thanks for the clarification...it does look much better now.

Plums;

We call that 'the rear end', if you will pardon the expression.

cheers,

jj
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Old 02-17-2012, 07:19 AM
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Quote:
Originally Posted by bigjohnsonjeeps View Post
What springs did you use? and how much did it lower it?
Got them from Suspension & Brakes . Shipping for just the rear springs was about $70 from the UK. It lowered the rear about 1.20 inches.
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Old 02-17-2012, 01:25 PM
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Quote:
Originally Posted by Skid Mark View Post
Before and after of the 4mm shim on the right axle for the camber issue after lowering springs were installed.
Looking a little tipsy to the inside haha.........
Did you calculate the required shim size from the wheel angle or was it a case of trying the 4mm to check the difference and hitting lucky first time?

Graham
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Old 02-17-2012, 02:34 PM
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The acceptable camber range for the rears is -1.50 to +.50. The recent camber before lowering the rear was -1.30, and a few other members on this forum all agreed on another -1.0 for lowering (which totaled -2.30 in my case), so I knew I could go max on the studs capacity and be well inside the green. I also wanted them as upright as I could get for tire life. I understand the Jaguar rational for negative camber and handling, but I don't horse it around that much anyway.
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Old 02-17-2012, 02:51 PM
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Quote:
Originally Posted by Skid Mark View Post
The acceptable camber range for the rears is -1.50 to +.50. The recent camber before lowering the rear was -1.30, and a few other members on this forum all agreed on another -1.0 for lowering (which totaled -2.30 in my case), so I knew I could go max on the studs capacity and be well inside the green. I also wanted them as upright as I could get for tire life. I understand the Jaguar rational for negative camber and handling, but I don't horse it around that much anyway.
When I saw the first photo, I thought the inside edges of the tyres wouldn't last long. Also crossed my mind the car might not either if you don't move your impressive collection of aerosols further away from the garage heater.

Near vertical for tyre life is worth a slight compromise on handling.

Graham
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Old 02-18-2012, 08:57 AM
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Quote:
Originally Posted by GGG View Post
When I saw the first photo, I thought the inside edges of the tyres wouldn't last long. Also crossed my mind the car might not either if you don't move your impressive collection of aerosols further away from the garage heater.

Near vertical for tyre life is worth a slight compromise on handling.

Graham
Hahaha, it's not as close as it looks. I always move the space heater around when I have it on, and never have it on unless I'm the garage.
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120, 150, difference, longer, lowering, racing, run, sepang, spacers, springs, stripes, studs, wheels, xk8, xkr


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