Hi Marcus,
The weights you posted include the Sweeps, or just the car and body?
Complete car with Maclaren body, no fuel! The REDS engines are the lightest on the market, 348g for the M7T!
I finished my long chassis conversion last night and i got it down to 3175 w/o body and 3628 complete, the long chassis bodies are heavy but the car now weighs exactly what my short chassis car weighed. So at least we know the long is not handicapped by weight.
TeamC now has aluminum ball ends, shock post, internal dif shafts and some other tid bits which will shave more weight. i would like to get it down to 3600 with the arm braces so i need to find another 75g.