Few Stag Mods?

[iamhe77]

Now you are asking the million dollar question of "How & Why".

There is so little information available off the shelf we are still trying to work out the "WHY" part.

If we knew the answer it would be really easy but all we know at the moment is that a number of people in the early days of the M35 put staggered offsets on their cars and the ATTESA was acting up. Also I have seen one car that has put on staggered offset and he said he had no problem but he has now sold his car.

But we need more people to experiment so I say go for the staggered offset and let us know how you go.

Actually Andy, if you are referring to the white Axis, he was running staggered wheels and although the rear rims and tyres were considerably wider, they had the same rolling diameter as the fronts due to a lower profile. Offset and width are two very different things.

[Jetwreck]

I can't see how it would (it doesn't affect the system on C34's but stranger things have happened).

lol....yes they have!

thanks for you advice!

[andy65b]

Actually Andy, if you are referring to the white Axis, he was running staggered wheels and although the rear rims and tyres were considerably wider, they had the same rolling diameter as the fronts due to a lower profile. Offset and width are two very different things.

mmmmmm, isn't that what I said?

He was running different offset front to rear.

and yes, I know the difference.

[skyline_man]

Okay, I've spoken to a Nissan tech and here's what he said regarding offset on the M35.

It is okay to change the mags so that the width of the tires increase or decrease - so long as the offset remains the same. But once you change the offset (especially positive offset), without changing the width of the tire to compensate - the ATTESA system will not work properly.

The thing to watch out for is that changing the offset a lot, without changing the width of the wheel to compensate, means that the tire sits at a different location on the ground with regard to the suspension system. The specific term is "scrub radius"

Visualize a line drawn through the suspension to the ground. When that point on the ground is at a very different location than before, the tire motion (up and down) in normal use is altered into a different curve. This puts stress on the suspension in ways that it was simply not designed for.

The rule of thumb is; if you're going to change to new wheels with different offset to the original wheels, then you should also change the width of the wheels to compensate for the altered scrub radius.

Edited November 3, 2009 by skyline_man

[Jetwreck]

Finally...an answer........good work SM......and it actually makes sense.

I don't even see the "Well my C34....." sentence appearing.

good work and much appreciated.

[Jetwreck]

And no I am not having an us and them moment....If I had my time again I would go and RS260.

Then I would be the one going " Well my C34......."