How come when dropping a 20xe into a mk2 cav, everyone uses f20 gears in a f16 casing? Aren't the boxes suppose to be the same?
I'm starting to look at this conversion as a Cavvy may be falling into my hands soon
Are the gears a straight swap or are there any mods needed?
I found out about this in a post some time back, but can't find it now. And I was searching the web (cavmk2.co.uk and mk2cav.co.uk) and every car that has a valver conv, has the gears on the f20 swaped into a f16 casing...
Weird... I'm thinking it may be somthing fisical about the casing
mate i had a 16v engine before my turbo, running at 172 bhp and i used a f16 close ratio from the sri 130 not the very close ratio found in the old cavs, thats just to close, i used this box over a yeaar and use to do at least 300 miles a week and never had any problems
Yeah, but the problem is the car I may be getting is a 1.3, hence f10 box no good, and if I drop in a valver, I most certainly will be buying it with box attached, so i need to know if the box fits, or if I have to find a f16 to swap casings, which seems to be what everyone does. I don't mind doing this, I would just like to know why it is necessary
you could get the f20 to fit but the rear mount would have to be fabricated as the f20 rear passenger mount fits on the subframe but the cav mk2 does not have this, the rear mount as you know on the mk2 is mounted near the inner passenger wing
I have run about 4 different boxes in my nova, but the first one I had was very close, and topped out at 130mph. Since that one gave up, i've tryed F16's from various models but not found a close one again. Even had one that did 109mph in 3rd . I think the close box had around a 4.19 diff or something.
Could someone tell me what car these very close boxes come out of? as i'm in need of another replacement.