Thread: Hill Climb Comparison

Slightly different line - big difference in the surface the tyre was on. Pressures made a big difference. Interesting thing Gordon notes is when you get a bit of wheel spin don't back off but give it a bit more to make the terrain response activate the traction control.

Driver no2 was a bit more gentle too.
Aaron,I think those 265/65 look a much better size than the 285/60 you are considering.
Andrew

We did an easier climb earlier in the day and I had around 30psi (34psi hot from highway driving) Scott got up it, and I didn't without a roll back and more welly with lots of wheel spin
So I let my still warm tyres down to 28psi about 1/2 hour later for the next technical downhill where we had lots of rocks to climb over and around with handheld uhf guidance

Scott did a superb job guiding me, not a mark on my car

I didn't so well, that's how he got the scratch on his rim

Anyway low pressure certainly seems to have helped as you'd expect

I was on steep rocks last weekend and was lazy at the start and hasn't aired down. After taking about 8 psi out of the tyres I noticed a real difference in grip and just stickiness, even a small amount has such an impact.

I just watched the video again after seeing the scratched rim.Made me cringe thinking how well the stock tyres would have been open to carnage.ONYA JLR!!!!
Andrew

A couple more vids of the bump we climbed
[ame="https://www.youtube.com/watch?v=2Kcv6jSwiPo"]https://www.youtube.com/watch?v=2Kcv6jSwiPo[/ame]
[ame="https://www.youtube.com/watch?v=TfXSYdUfeC0"]https://www.youtube.com/watch?v=TfXSYdUfeC0[/ame]

Originally Posted by Meken

.... Gordon notes is when you get a bit of wheel spin don't back off but give it a bit more to make the terrain response activate the traction control.

Yes but gently and also with some modulation up & down in revs, as well as a little side-to-side with steering wheel.
I was doing all that but in the thick of it probably not as gently as would be ideal.

Originally Posted by Ben_Vapid

.... After taking about 8 psi out of the tyres I noticed a real difference in grip and just stickiness, even a small amount has such an impact.

Totally agree Ben and it's also different from tyre to tyre.
I reckon 26-27 would have been ideal for mine for where we were.

The rim damage was not on this hill but earlier in a tight rocky gully on a large boulder/rock shelf.
Not this specific spot but same gully:

You were basically needing to check all wheels almost constantly for the next obstacle.

Cheers,
Scott

I do wonder if 285 width would have protected our rims just a tad more? The 265/65 KO2 is very straight walled
Timelapse video of that rocky descent uploading to youtube now