[Ant]

Don

That makes sense and works, I am no expert at this, and as the manufacturer stated its hard to make a compromise for road and track. I look at cars like JBL and think thats got to be cool on the circuit.

Regarding the centre section I think that even though the tunnel is quite small at rear firewall, its still a substantial centre spine as it goes up almost 18" at firewall and down to front suspension, of course wider would be better at rear end, but I think coupled with the way the central body is attached to the chassis and rear roll bar, this car will work as what it is a modified road car.
I am picking if I get 500bhp, good tires, sort the gremlins it should be quite good, it wont be a stiff or tuneable as an advanced racing chassis.

The next question is engine I might even keep it down to SVO 331,347 to save that approx 80lbs, I have raced almost 700bhp cars and unless its alloy, you know the weight is there. My car is going to be medium street driven on pump gas 9.7.1 to 10.1 comp, and track wise use a mix of avgas, but I think that capacity will limit horsepower to around 425- 450bhp, but that should be heaps in hopefully under 1000kg car.

Ant