hi all got my gti engine in now on a adaptor onto a 3 rib box but the ratios are way too low , whats the gearbox I beed to get me out of this high rpm or best ratios to get built into it and by whom thanks tony
Gear box from a 2 litre bay (6 rib) is usually the way people go. Either that or send your 3 rib to cogbox or bears and they will put a longer 4th in or longer 3rd and 4th.
At 50mph it's at 3k revs would upgrading to a 6 rib bring it down to 60mph at 3k revs and will the nosecone off a 6 rib gearbox be the same as a 3 rib gearbox
Mine's got a 4.57 final drive (as per 6 rib) and a longer 0.82 4th gear. With stock tyres, that's about 3,500 rpm at an indicated 65 mph (actual 62 mph according to sat nav). I've seen people talk about fitting a 0.7 4th gear, which would give you 3,000 revs at 65, if you've got the torque to pull it. Talk to the gearbox specialists about what they can do for you.
