corner weighting a 260z track car.

[satrat z]

Hi guys,  Just after some advice re corner weighting a Zed.  I spent quite a few hours with the track car on corner scales and adjusting the spring perch heights on the coil overs but with my body weight 80kg's, I  couldn't get the right rear within 60kg's of the other 3 corners without drastically changing the ride height which I didn't want to do.    Am I chasing an impossibility?

Any advice from other Z owners that have some experience in corner weight adjustments would be much appreciated.  Cheers.

[dat2kman]

Swap out that particular spring for one that compensates for the weight variation, therwise your car will be jacked up/dropped down, in rder to get them right.

Try to get side to side as well as diagonal all as close as pissible, they never will be, but see how you go.

My race car is within 10-12 kgs all around.

[satrat z]

Thanks Jason, I will give that a try, I think trying to corner weight when the car has progressive springs also makes it a bit more difficult because you don't get a direct result from any perch adjustments. 

[dat2kman]

Ummm, yes.

Go for single/linear rate springs!

[tir33d]

I ended up with my cross weight spot on, front to rear at 50% but I was heavy 20 kg front and 20 kg rear on drivers side. Im 80kg. Wasn't happy to pre load perches any further. Tried to keep them within 10mm of each other. Oh and took me most of a day of mucking around.

 

 

[satrat z]

Within 20kg's of each other sounds good, I will have another check of my perch height differences.  Yeah agreed, I have access to a mates set of scales so I might have another go at it.    Thanks for the reply.