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Wheels, Suspension, Brakes & Tyres questions and answers

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Blue94t
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Postby Blue94t » Fri Feb 15, 2008 12:18 pm

It's 100mm in Melbourne too.
I run my 5 at 105mm to the front crossmember.
Exhaust sits a touch lower but I have never been picked up on that.
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Cal
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Postby Cal » Fri Feb 15, 2008 1:29 pm

StanTheMan wrote:
Cal wrote:Tell him to blow himself. If nothing under the car is closer to the ground than 100mm it's legal. That is extremely low. Both my MX5's and my VERY low Audi are well above that.



Cat


what you are suggesting is even if you had no suspension travel provided you have 100mm clearance it would be passable.

That is incorrect.


additional requirements for suspension lowering is that the free travel of the suspension is not reduced by more that a thirdas well as the bumpstop is not reduced more than a third as well.

and with the Koni set up....... considering both I recon is impossible. he copper may have been guessing. But he guessed right.


:mrgreen:


They are going to test that how?

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StanTheMan
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Re:

Postby StanTheMan » Fri Feb 15, 2008 2:06 pm

Cal wrote:
StanTheMan wrote:
Cal wrote:Tell him to blow himself. If nothing under the car is closer to the ground than 100mm it's legal. That is extremely low. Both my MX5's and my VERY low Audi are well above that.



Cat


what you are suggesting is even if you had no suspension travel provided you have 100mm clearance it would be passable.

That is incorrect.


additional requirements for suspension lowering is that the free travel of the suspension is not reduced by more that a thirdas well as the bumpstop is not reduced more than a third as well.

and with the Koni set up....... considering both I recon is impossible. he copper may have been guessing. But he guessed right.


:mrgreen:


They are going to test that how?

Brad, eat a dick.



I Don't really care how they test it. As I said. The copper was probably taking an educated guess. They have the power to defect a car on state roads on under reasonable suspicion. They can even defect anything which has proper engineering.

But all that is beside the point. You were making one suggestion. I was suggesting its different. Or at least a little more complicated than you were suggesting.


:mrgreen:
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Cal
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Re:

Postby Cal » Fri Feb 15, 2008 2:26 pm

StanTheMan wrote:I Don't really care how they test it. As I said. The copper was probably taking an educated guess. They have the power to defect a car on state roads on under reasonable suspicion. They can even defect anything which has proper engineering.


Well that makes sense then doesn't it. So cops are God now?
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Re:

Postby StanTheMan » Fri Feb 15, 2008 2:40 pm

Cal wrote:
StanTheMan wrote:I Don't really care how they test it. As I said. The copper was probably taking an educated guess. They have the power to defect a car on state roads on under reasonable suspicion. They can even defect anything which has proper engineering.


Well that makes sense then doesn't it. So cops are God now?


I wouldn't go as far as that....but certainly Gods sidecick as far as defecting a modded car goes.

The copper could have been a prick & ruined UA day. But credit goes to UA for not giving him lip & now actually trying to do something about it without getting a defect.
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Postby Okibi » Fri Feb 15, 2008 2:45 pm

When I was setting up my suspension I seem to remember a rule about the distance between the headlight and the road :?

Guess each state has its own rules, I'll need to try and find the W.A. ones.

Also the W.A. rules say that your suspension can't be \"raked\" BUT the OEM NB MX-5 specs have the car \"raked\" so you have to match the Mazda rake angle to get a permit.

Hope that makes some sense.
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Postby Cal » Fri Feb 15, 2008 3:54 pm

Coilovers are illegal in Qld. Umm the MX5 has them standard.
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Postby Uncle Arthur » Fri Feb 15, 2008 6:15 pm

But 'technically speaking' either way my solution wont be adjustable coilovers....... 8)

They will simply have the bottom spring seats set up like coilovers.....

Watch this space for a MX5 pilot project coming to a road near you.....

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Postby Uncle Arthur » Mon Mar 03, 2008 10:51 pm

The car is back :D

The car is good:D

The ride height is smooth 8) and the ride is even better than before.

I have now have the equivalent of fully height and rebound adjustable Koni coilovers.

I'll take pics over the weekend, and stay tuned for a Fulcrum suspension Tech day where they can explore suspension options for the 5 with our motley bunch.

Thanks to Gary and the guys at Fulcrum Yerongpilly for an awesome job on both the R&D side of a totally new and untried suspension solution and the delivery of said solution for our MX5s.
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Postby JBT » Mon Mar 03, 2008 11:56 pm

Sounds very interesting. Write up for the club mag?
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Postby Uncle Arthur » Tue Mar 04, 2008 11:05 am

Yeah - I can do that.
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Postby Brad » Tue Mar 04, 2008 2:53 pm

How much bucks for the mod to the Koni's?
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Uncle Arthur
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Postby Uncle Arthur » Tue Mar 04, 2008 4:14 pm

Fulcrum did me a deal because I'm the first to try it.

Now they know how it will be more than I paid, but less than I could have paid for all the R&D side.

Way less than the cost of replacing everything with say Teins, and then having to try and flog off the leftovers at bargain basement forum prices.

The sleeves were $140 for the parts. The rest was labour, fabrication, and wheel alignment.
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Re:

Postby Brad » Tue Mar 04, 2008 4:41 pm

Uncle Arthur wrote:Fulcrum did me a deal because I'm the first to try it.

Now they know how it will be more than I paid, but less than I could have paid for all the R&D side.

Way less than the cost of replacing everything with say Teins, and then having to try and flog off the leftovers at bargain basement forum prices.


K, was just interested whether the cost to buy new Koni/Kings + Mod was more or less than the Tein's as this idea was floating around my head when I bought the Tein's.
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Postby Uncle Arthur » Tue Mar 04, 2008 7:06 pm

Might have been, but did you know of the koni fix when you bought the teins?

Anyway - here's what they did:

The rears:
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and the fronts:
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Obviously the threaded sleeve slides over the shock body. They had to mill in a shoulder on the inside of the sleeve so it would sit tight down over the Koni seating rings. The locking rings screw into place on the sleeve, then they modified the spring seats so they would sit on the locking rings. There was a bit of fabrication involved, but it has transformed the car - the springs and shocks are obviously much more in harmony, and the ride is while firm and sporty, not harsh (as it was). They have set it up so I can go lower if I want to but that it sits about perfect where it is. I'll clean the car before I post up a ride height pic.
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