Thread: Lucky 8's Project P38

Originally Posted by PaulP38a

It's only been 43 years since Australia converted to the Metric system but we can do it that way for fun

Atlantic British either have been misinformed or NAS P38's have smaller OD tyres than Australian... but I don't think so.
29" (737mm) tyres were standard on Australian P38's, so on EAS Standard Mode the distance from ground to bottom of wheel arch/fender is 33" (838mm).

• Tyre diameter - 29"

Cheers, Paul.

Hi Paul,

Remember that when the vehicle is standing on the tyres they compress and thus limit the actual tyre lift - they become flat on the bottom.
On my vehicle with 285 75 16 tyres with 36 psi pressure that tyre compression is just under an inch, so that also needs to be taken into account when calculating the distance from ground to the top of the wheel arch. This can account for the discrepancy with the measurement that Atlantic British is providing. If you're working from setting the airbag height with adjustment blocks and then adding the radius of the 29" tyres you will get a measurement that is greater than the actual distance from ground due to the compression of the tyres.

Originally Posted by PaulP38a

Section 3 of Owners Manual, also on RAVE, has the EAS height mode differentials.
EAS Standard Mode height of 470mm is quoted all over the web and is in one of the tech references I have here somewhere... will search.

Paul I cannot find this anywhere in Rave or the manuals. Let me know what you come up with. I have also asked on a multitude of forms and nobody else's has been able to come up with the correct answer. I'm starting to think that the US market had a truck set lower than the OZ market

I might have posted these before, but probably represent what most of us would like our P38's to look like:

P38 on 33" muddies, 15" rims, G3 Airbags, Peddars Shocks (I think), front steel bumper with original Range Rover top bar, rear steel bumper and wheel carrier.

Compliments LR Service Centre, Cape Town

Originally Posted by RoverHse

I might have posted these before, but probably represent what most of us would like our P38's to look like:

P38 on 33" muddies, 15" rims, G3 Airbags, Peddars Shocks (I think), front steel bumper with original Range Rover top bar, rear steel bumper and wheel carrier.

Compliments LR Service Centre, Cape Town

That front bumper looks really good do you have a better picture?

Originally Posted by FiveSPDDisco

Paul I cannot find this anywhere in Rave or the manuals. Let me know what you come up with. I have also asked on a multitude of forms and nobody else's has been able to come up with the correct answer. I'm starting to think that the US market had a truck set lower than the OZ market

The LR systems information document detailing the EAS specifies that Standard Height is defined as a set distance between the bottom of the bump stop stub and the axle plate. That set distance is 105mm+/- 4mm rear, and 100mm+/- 4mm front.

Remove the rubber bump stops and place a block of (hard) wood of the correct dimensions between each stub and plate to give you an exact datum line to work from....

See also EAS height settings ref Post #10

good luck with it!

Originally Posted by Hoges

The LR systems information document detailing the EAS specifies that Standard Height is defined as a set distance between the bottom of the bump stop stub and the axle plate. That set distance is 105mm+/- 4mm rear, and 100mm+/- 4mm front.

good luck with it!

Thank you sir. This is also what I have found.

Originally Posted by FiveSPDDisco

That front bumper looks really good do you have a better picture?

I only have this one more.

The bumper was made by Burnco www.burnco.co.za

Originally Posted by Hoges

See also EAS height settings ref Post #10

good luck with it!

Thanks Hoges, I remember that thread now... seems so long ago when I was trying to figure out what was not quite right with my lift kit, and those measurements were done with 265/60R18 (30.5") Cooper HT Plus road tyres, not the 33" muddies it normally wears.