So after the Time Attack I needed to come up with some ways to take weight off the car and to redistribute weight as well.
I weighed it with about 3 gallons of gas,
LF 691 RF 746 (turbo, manifold, exhaust is on this side)
LR 565 LR 637 (battery in this corner)
Cross weights are pretty close 1311 to 1328
Front total = 1437
Rear total = 1202
Total = 2637
Weight distribution Front 54.5 Rear 45.5 as measured
I have a 20 gallon tank, each gallon of gas is approximately 6lbs so 17 additional gallons x 6 = 102lbs more with a full tank = 2739lbs, pretty much all that weight would go to the rear as the tank is behind the axle
Front 1437
Rear with full tank 1304
Total 2739
Weigh distribution with full tank Front 52.3 Rear 47.7
So while it's heavy for a 510, it really quite light for anything close to it's horsepower. The last RX7 twin turbo had a curb weight (all fluids and full tank) of 2830, current S2000 is 2864. Of course they have a nice advantage in the weight distribution area, but so it goes with a boat anchor in your engine compartment.
I decided to convert to air to air for the intercooler. Less weight overall including the water, pump, piping, and water tank vs. just the air to air. The air to water filled was 13lbs, the air to air is 17lbs but overall less weight and less complexity.
Went a little nuts and decided to move the radiator to the rear allowing for a bigger intercooler, but mainly better weight distribution.
