The R888 is designed more for dry track use same as Dunlop DO1J's.

I have 205/60/13's RA1's on my sunny.

Their performance in dry and wet is excellent and only exceeded by DO1J Dunlops in the dry but the wear rate on the RA1's is much better (More race KM's for your buck) than the Dunlops.

For 4th gear (1:1) pi/diff ratio x tyre circumference= kph/1000 rpm

so 80/4.625X 1.86= 24.12 kph/1000.

Are you sure about the 0.83 overdrive? Normal is 0.86 or ).75.
For 5th (0.83 Overdrive) kph= 24.12/0.83=29.06 kph/100.

Murrays speed =29.06 X 7.2=209 kph (plus tyre growth speed).
Con rod = 7.8 x 29.06 = 226 kph (plus tyre growth speed)

Length of the extension housing after the steel divider plate.

OK for DGV only!

That part number is correct for an H150 LSD.

I have seen a T25 running 15 psi constantly as a daily driver.

I have also seen a T25 running 20 psi but it had a 360 degree thrust bearing and left hand thread shaft for the compressor wheel.

An interesting item he runs is an American Accusump oiler system to supply oil to the turbo after shutdown. Works well.

Used VQ35 with loom and box of tricks is around $8500 by my research.
I wanted one for my 300C but saw the dollar stop signs quickly.

In NZ use a 160J cross member.
Also an MR30 gearbox with a Z bell housing is the same length as a PA10 Box and makes the lever sit correctly.
If the car is a manual the tunnel will need to be severly pounded where the speedo drive comes out of the box.

For cooling use an Audi 5 cylinder 1985 ? model crossflow rad (cheap and easy to fit).

The Z18 will cost less than half that of fitting either a CA or SR.

Max rear wheel Hp with a good engine/turbo/ecu combination would around
300 reliably.

Nice, Looks like a 5 speed as well (the larger box)!!!!