f18 or f20
i am putting a 2.0 redtop into my mk3 astra sport but i think my box is the standard f18 will this fit or do i need the f20 ??
99% sure it will, yes. I know they fitted the F18 to the 2.0 16v ecotec, which is the same block as the 20XE redtop, so by the process of ellimination i suppose the F18 will go.
odders is right it will fit i have anf18 on my 20xe.
how do you finf the ratios, top end etc ???
did it fit with same clutch etc ?
about the same really i used a astra gte16v flywheel+clutch.
only because its bigger though
mine has a astra gsi flywheel and clutch will this fit straight in ?
its the same as long as it was a 20 astragsi i believe
final drive 3.57
final drive 3.55
maybe ill leave my f18 in then..but cant you change clutch with engine in on f20 ??
yes you can but i would put a new one on it when it goes in it should last a bit
the only reason i would go out and change to an F20 if i already had an F18 in use, was if i needed a stronger gearbox for future power mods. From the ratios they are identical, the F18 are a smidge longer on some gears, but it has larger final drive so its all equaled out.
cool think ill keep the f18 and just check my clutch is ok..