BGTV8 VQ40HRGA Race engine build

BGTV8

I am still making 370nm torque at 7000rpm though and torque only starts nosing over at 6800rpm. It is still making 360nm at 7800 and power is still climbing at 8000rpm.

390Nm at 8200 was our best but i was right on the edge of knock - that is 335Kw atw (449hp).

We have dialled it back quite a lot on safety grounds as I want the engine to last. so 370nm at 8000 is where we settled which is 310Kw or 415hp all atw

Assuming 15% parasitic losses in the driver train (might be 12%), that is an estimated 485hp at the crank.

BGTV8

So our first race meeting of the 2024 series has been run - Victorian (my home state in AUS) Sports Car Championship.

Car ran like a train after we got rid of the head-fork that was DBW throttle (Sasha Anis told me several times that would be how it ended).

I ran as high as 5th after some of the 911 Cup Cars fell off after they touched but finished 7th outright and first in class.

Bolted on a set of Yokohama A005 slicks and they work the best of Yoki, Pirelli and Michelin. I might try a set of Dunlop slicks in due course.

The only issue is pottering back to the pits after the feature 20-lapper the oil pressure was a bit low (oil temp after a 30-minute race was 112 degC) so I have to get a smaller pulley for the dry-sump oil pump to spin it a bit harder at idle and just off idle. Have to revise the oil-cooler ducting as well and possibly a larger oil cooler at the end of the day.

Tried a set of Circo (Japanese made by Winmax) M207 endurance pads and they were brilliant. Braking performance is simply outstanding.

I'm really happy to be enjoying the car - it has no apparent vices although I am not at 100% yet given it is such a different animal to my old race car.