thewheeldeal.com.au

Had a great day out, tag teaming in the little red mx-5 with Jack. Just wanted to offer my thanks and appreciation for those who volunteered today. It's often a thankless task and without you guys it would not go ahead..so thanks a heap! P.S whats the std timeframe for timing results? Jarrard

There are also different springs available for lower pressures (ie drag racing).

Picture attached.

No probs mate, I was pretty occupied anyway with everything else that was going on. I was just spectating today, Jack was doing all the driving, I just stood around inflating tyres and re-attaching blown inter-cooler plumbing. The tireliefs Jack was referring too are a device we've attached to the wheels which relieve pressure from the wheels as your tyres heat up. So, in our example we had the tyres running 34psi, so we inflate the tyre to 34psi COLD and as the tyres heat up the tireliefs release air pressure and maintain a consistent 34psi pressure. It means airing up after each session but once they are set to your desired pressure, you can simply fill the tyre till you hear the tireliefs hissing....you can leave them knowing that they will relieve the pressure to 34psi without the need to check etc. Handy little things.

Hey guys, it was nice to meet many of you at what turned out to be a great day. I had a great time and with Jack scoring a PB on the car's second outing we were stoked. I have a few pics up (mostly of our car) but a few random pics too. There's only a few but some of you might find them interesting. I'm not much of a photographer though so while there were heaps of shots, not many were good enough to publish. > http://www.facebook.com/media/set/?set=a.484856611541762.121171.122361571124603&type=1 Cheers, Jarrard.

235/45R19's are massive mate...you sure that's the right size?

hmmm....what he said....

your 235/40R18 is 645mmOD 10" options 255/40R18 is 661mmOD 255/35R18 is 636mmOD 265/35R18 is 643mmOD

This is very true... haha

Did I? ....Whilst Australian Standards are developed in conjunction with manufacturers (along with engineers, industry professionals and international associations)... where does it say that? Look Fellas, I didn't come on here to argue fact versus fiction with you. I simply tried to provide some facts about what's legal and what's not, and as I have said numerous times, it's up to the individual to use those facts as they see fit. If like yourselves people choose to ignore the facts, then so be it. It's got nothing to do with me and as Braddd has pointed out it's up to the police to enforce them. However we have already proven that bogus advice has already cost one user alr33x a defect, so where's the harm in clearing up the confusion? I'm sure if he knew the legalities before fitting said tyres he might not have done it. I never said a stretched tyre is unsafe.... I never said don't do it.... I'm still trying to figure out what you are arguing about here...how can people make an educated decision if they don't have both sides of the story? Facts do not cease to exist because they are ignored.

Safe or not mate, it's the rules... I didn't write them, if you have an issue with them then take it up with the Tyre & Rim Association of Australia.

There's that... and also the problem of picking up road debris (stones etc) and projecting them forward from the top of the tyre into oncoming traffic.

That's not 100% correct. Whilst Australian Standards are developed in conjunction with manufacturers (along with engineers, industry professionals and international associations) they are not based on manufacturers recommendations solely and at times a manufacturers recommendation is at-odds with the Association standard. In such cases the Association Standard overides any manufacturers recommendation. An example: Mickey Thompson MTZ 285/75R16 - According to the manufacturer it may be mounted on a 7" rim Australian Standard says minimum for a 285/75R16 is 7.5". In this case the Australian standard overides the manufacturers recommendation. Apologies for getting all technical.... and sorry for using a 4x4 tyre as an example, it's just something that came up the other day and was fresh in my mind.

Here's the thing, There is another manual used called the Universal Tyre Fitment Guide which lists all OE fitments of wheels/tyres/offsets for australian delivered cars which is also used by authorities on matters such as overall tyre diameter increase & track increase etc (mainly for 4x4's). Because it only references Aus delivered vehicles, only select Skyline models are shown such as R31's and some GTR models. Without a reference as to what an imported vehicle came with as standard it is near impossible for police to prosecute, unless however the tyre placard on the vehicle clearly states a rim width (most don't). So with this in mind, assuming you are within the recommended outer tyre diameter as per your local authority and the tyre is mounted on the rim as per the Tyre & Rim standards manual you 'should' be fine. Every state authority is different though, it's up to the individual to do his/her due diligence.

nothing wrong with providing a bit of information mate... how it's used is up to the individual.

Yes... it is. your 235/40R18 is 645mmOD 10" options 255/40R18 is 661mmOD 255/35R18 is 636mmOD 265/35R18 is 643mmOD

again, I'm not trying to be a smartarse here, just trying to provide some help... According to the Tyre & Rim Association of Australia Standards Manual, which is what all state authorities reference on wheel & tyre standards, a 225/40R18 may only be mounted on a 7.5" - 9" wheel. (Nominal width is 8"). It's worth mentioning that this manual supercedes any claim made by a manufacturer regarding wheel width min-max. This from the website: The Standards Manual is a necessary reference for all tyre and wheel manufacturers and retailers, as well as vehicle and implement manufacturers, vehicle service organisations, transport authorities, government bodies, road and traffic authorities, fleet operators, agricultural vehicle and machinery users. Current Standards Manuals are a nominated standard for many Australian Design Rules (pertaining to the design and manufacture of automotive products) and State Transport and motor vehicle regulations.

Hey Braddd, this is my first post and I don't want to come in too hard straight off the cuff, so forgive me if this sounds too authoritative, but you know thats not legal right? 225/40R18's shouldn't be mounted on anything bigger than a 9" wheel. 215/40R18's shouldn't be mounted on anything bigger than a 8.5" wheel. with that in mind have you considered; rear: 255/35R18 front: 225/40R18 or even a 235/35R18 (a bit hard to find)