AO Platinum Member
Join Date: Feb 2002
Location: The land that Time forgot
Re: 33 4x4 conversions
The underneath of the rear of the car is quite different.
On the P4, Alfa stuck the propshaft in the tunnel where the exhaust goes on the regular 2WD 16V and then dangled the exhaust just a bit lower. No problems there - you can copy that setup.
However, the boot floor is higher, to accommodate the rear differential and drive shafts. The rear silencer is a different shape as a result of all that extra gear. I think the fuel tank is also different, though I have never compared a P4 tank with the regular 16V.
I think there's heaps of room in there though. If you got hold of the P4 drivetrain (gearbox to rear wheels) you could probably make it fit.
I think the fiddliest "install" job would be to get a silencer in there. If you had a P4 one, you might have clearance problems (it has a loop section that nips past the right-hand driveshaft and you may need the higher boot floor to use one of those.
I'd say that if you get that far, then finding someone to build you a silencer will be pretty straightforward though.
The nightmare part will be the electrics that control the central viscous coupling or the rear wheels will only ever be free-wheeling. The electrics work out what's happening at each wheel and transfer drive to the rear as needed. The VC is controlled by that... more current, the more drive goes to the rear.
Someone here could probably advise you how to lock up the VC so that it's always in full rear bias, as a simple option. Don't know what that would do to the mechanicals long term though.
No bullets for Chaingun..