Post #12
I think the stub from a 307 ball joint where it normally meets the wishbone is tapered for a secure fit, you'd have a hard time ripping a 306 balljoint apart to adapt it so that it is suitable. I think the best way of mating the 307 hub to a 306 wishbone would be to remove the 307 ball joint, get an adapter machined which screws into the 307 hub then tapers down to say 20mm and use a 20mm rose joint which screws into an adapter which would fit the 306 wishbone. This way you could then decide on where the rose joint pivot point is in relation to the 307 hub to alter the roll centre accordingly.
Does anyone know the centre of gravity height for a 306?
I havent got access to corner weights to find it for myself but read on the internet that it's commonly the height of the crankshaft, but i'd imagine it to be a bit higher on a 306.
Also, anyone got a rough idea for the corner weights for both a standard 306 and a stripped one?
I'm trying to sort out the roll centre on my car, ideally i'd lower the rose joint height where the wishbone meets the hub, but i'm as low as i can go without it hitting the rotor. I could space the rotor out but that would then mean having to space the wheel further out which i'm not keen on, so the alternative i'm considering is making a new subframe where the wishbone pivot points are higher correcting the wishbone angle.
The 307 hub could be an option seeing as the brake mounting all seems to be the same as a 306 hub, but once again i'm thinking that i may have brake clearance issues, and then theres the awkwardness of having to design and machine something to connect the damper to the hub.
The 406 hub seems to be similar to the 307 hub in terms of machining a screw in adapter to take a rose joint, and that seems like it will accept a 306 damper with the clamp system as used on the 306 hub, but the brake mounting points are different which would need new brake brackets and probably bells machining to suit.
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Goldie the track car.