haha guys!
to take the piss, i am studying Business Studies at UWE in Bristol. Its soooooooo boring and i hate it, i wanted to mechanical engineering but im not too good with the mass and i know that its a very popular deg with not much options for jobs....i need money to fund my racing!!
Anyway, the 16" Super leggerea wont need any exrta energy to spin them up. Since they weigh 6.2 kilos per rim (exc tyres).....Basically the super ls are their size in inches, minus 10 + 0.2-0.6.
well, the problem with super ls is that, although tey get up to speed quicker, they need more energy to keep them at the engines max speed! This is becasue their inertia is lower than the OZ F1 cups. This means that you might have a reduction in top speed. I have a RT with 15" Super Ls and its top speed takes ages to reach now, where before it did 100-110 (indicated) more than happily, with the super Ls its more happy at 80-90MPH. It still reaches 115 top (indicated and not true speed) it takes ages and a hill!!
So i have bought a set of 16V phase 1 wheels for day to day, and the super ls to fit with super sticky yokohama A032Rs (cut slicks!) for track days when i get my engine up to 140BHP.
When you drive it though, you can tell that the lighter wheels have moved the polar point of inertia more forward, and giving better initial turnin, but more likely to understeer.....how to fix it?.....raise the reas suspesion and use harder shocks and springs (torsion bars)....as this will force the rear axles to start doing some of the chassis work (more 3 wheel corner action!!!)
But with a 172 or 16V, i think that the increase in size (including the reduction i weight) will more than counteract the decrease in inertia. And with 172BHP on tap, the engine is more tha powerful enough to haul ass!!
In easier terms, your effectively lightning the flywheel.