next year im intrested in doing alot of 1/4 sprints and track days and i was wounderuing what gear box would suite my engine best.
the car is an astra gsi with an x20xev (ecotec)
the enigine spec is
alpha weber 45 throttle bodies
courtenay hi torque cams
cylinder head work
lexmaul 4-2-1 manifold
2.5" scorpion system
has a courtenay lightened pot type flywheel
an f18w fd 3.74:1
power is 197bhp@6700rpm and 169ftlb@6500rpm.
0-60 in 6.72seconds
the 1/4 mile in 14.96@96mph
above is a rr print out of an engine with simuler spec if it helps
im intrested in swapping my gear box with another with better gear ratios and final drive more sutied to 0-60@s,1/4miles and track days.
dont do a lot of motorway driveing so top end performance i can lose.
can get hold of f16,f18 and f20 gear boxs cr or w ratio gears also have the choise of fd ratios.
can change my flywheel to a flat type if it helps.