Hi all,
Because I want to use the 16" Cromodora Dino Wheels from Superformance, I have to switch to 5 x 108 mm PCD. I know it has been dealt with here before (
http://www.madabout-kitcars.com/foru...ad.php?t=2109), but the thread is quite long and cluttered.
My configuration:
Fiat 124 front suspension;
Rear suspension unknown, probably Lancia Beta;
Ford 2.9 V6 and Ford IB5 or B5 or BC gearbox (will be modified to Alfa V6 engine and box).
Switching to 5 x 108 mm PCD, FRONT:
Fiat 124 front suspension:
Stub axle: 26 MM DIAMETER inside, 19,05 MM DIAMETER outside
Hub: 57 MM DIAMETER inside, 45,237 MM DIAMETER outside
Bearings: 57 x 26 mm & 45,25 x 19,05 mm
Fiat dino & 132 front suspension:
Stub axle: 30 MM DIAMETER inside,19,05 MM DIAMETER buitenzijde
Hub: 60 MM DIAMETER inside, 45,237 MM DIAMETER outside
Bearings: 60 x 30 mm & 45,25 x 19,05 mm
Fiat 124 hub can be replaced by a 5x108 PCD Fiat Dino, 130 or 2300 hub:
Use the Fiat 132/Argenta front inner bearings, outer Bearings are the same.
Put a piece of tube 26 MM DIAMETER inside/30 MM DIAMETER inside, 16 mm long on the 124 stub axle to make the 132/Argenta Bearing fit.
Another way is perhaps the Volvo 700 & 900 series (before 12/1987) 5x108 PCD front hub:
Hub: 60 MM DIAMETER inside, 45,237 MM DIAMETER outside. Sadly, I don't know the width of the hub.
Bearings: 60 x 35 mm & 45,25 x 22 mm
Again, use the Fiat 132/Argenta front inner bearings as well as the piece of tube.
BTW, Volvo hubs are studs instead of bolts, no problem IMO.
Center bore is 65 mm.
So, the diameters are OK, only the width of the hub could be the problem.
Switching to 5 x 108 mm PCD, REAR:
I will use the 3.0-3.3 V6 and box from either Alfa 164, 147, 156 or 166. 164 or 166 will be most likely, as 3.2 147 & 156 are GTA's, and thus expensive. 156 and 166 have a 6-speed box. You can fit the Q2 LSD to all four.
Alfa 166 is the only one with 5 x 108 mm PCD hubs, but the 166 front hubs fit the 164, 147, 156 driveshafts.
Alfa 147, 156 & 166 use the same integrated front bearing, 42 MM DIAMETER inside, 37 mm wide, 166 hub fits.
Alfa 164 use a seperate front bearing, 42 MM DIAMETER inside, 80 MM DIAMETER outside, 37 mm wide, 166 hub fits.
Now I don't know if I have Lancia Beta uprights at the rear, so that is vague to me. They used a Ford gearbox to which the Lancia CV's do not fit, but they could have used Ford driveshafts and CV's, as the outer Ford CV could fit the Lancia bearing (both 35 mm DIAMETER).
IMO Deon would not have have taken the hassle to modify the rear suspension only to fit another engine, so I tend to think it will still be Lancia Beta.
To those who have Lancia Beta Rear suspension:
Lancia Beta Bearings: 68 x 35 mm, 37 mm wide
The alfa 166 Hub is 42 MM DIAMETER outside, 37 mm wide.
I don't Know of a bearing 68 x 42 MM DIAMETER. But lots of Audis (A3-A6) use a bearing 68 x 41 MM DIAMETER, 18,15 mm wide, which doubles to 36,3 mm. One would have to turn 0,5 mm both sides off the 166 hub, which is acceptable if you take the weight difference between the Dino and the 166 into account. Using this bearing would make the 166 hub fit into the Lancia Beta upright.
BRAKES:
Haven't found too much info on this one, because I don't know about mounting points etc. Probably one will have to create caliper adapters at least for the front anyway, so you're pretty much free here.
Front:
Fiat 124: 228 MM DIAMETER solid discs
One solution is to use the 166 2.0 L front discs, diameter: 281 (6,8 kg).
One could also use the V6 discs, but these are a lot heavier, Diameter: 310 mm (8,6 kg), and they would only fit 16" wheels.
Rear:
Lancia Beta: 251 MM DIAMETER solid discs, 66 mm high, 13 mm thick.
One option is finding a disc that fits immediatly to the existing hardware.
Citroen XM: 250 MM DIAMETER solid discs, 63 mm high, 12 mm thick. Only center bore is 65 mm as opposed to 58 mm for the 166 hub, not a very big deal.
The problem with this solution is the parking brake at the rear, some of you have already written about that one.
I tend to the Alfa 166 solid disc 276 mm DIAMETER, 52 mm high, 10 mm thick, combined with the 166 rear caliper. The 16 mm height difference creates more than enough room for an adapter, and one has a competent parking brake as well. And of course it fits the 166 hub.
That's it for today, folks!
Anyone knows the center bore of Dino wheels???
Cheers, Kai