Referring to the diagram on underbody height (Page 07-13) that James has kindly put the link up for, I have done some calculations on the heights for the value of H2 and H5 for the ph1 Vee.
Assuming standard front and rear tyres and rims for the ph1 i.e. F: 205/50R17 R: 235/45R17.
The height from ground level to the centre of the wheel at the front end, H1; and rear end, H4, can be approximated by:
Front, H1 = 0.5(17"x 25.4) + 205*0.5 = 318.4mm
Rear, H4 = 0.5(17"x 25.4) + 234*0.45 = 321.65mm
Therefore, the values for H2 (distance from ground to the bottom of the front subframe) and H5 (outer corner on the rear of the body) is:
Front, H2 = 318.4 - 173mm = 145.4mm
Rear, H5 = 321.65 - 158.3 = 163.35mm
Happy to be corrected if my approximation is wrong. I don't think one can get the exact values for H2 and H5 due the "ballooning" of the tyre side wall.
I did do a quick check of H5 by measuring my ph1 using just a simple tape measure and found to be around 160mm.
PS. Coincidentally I am also trying to set the ride height this week and that's why I gave so much thought to it :rofl:
