Long term Project Planning - Range Rover
Posted: Tue Aug 10, 2010 8:45 pm
Hi everyone, thought it was about time I started posting again now that I am back in V8 mode , in the last coupleof years I have been busy moving and carrying out improvements at my new house, here we are 2 years later (did include a 30m x 15m Toy shed )
My Range Rover Classic is still in regular use, but I am starting to think about what to do when she retires and join my other toys
My RRc is a late sofdash with a semi serpentine engine, small journal crank, distributor, non crossbolt mains, but with all the crossbolt castings present.
Running on LPG
The block went porous and I had thick wall liners fitted, so scope to up the piston diameter.
My current thoughts are along the lines of.........
Increase capacity to 5.0 or 5.2, raise the compression ratio to take advantage of the higher octane in LPG (but kep the ability to run petrol (Super inleaded as a reserve)
Polish/port heads possible large valves
So I suppose my initial questions are:-
What is the optimum CR for LPG
What is the maximum CR I can run keeping the ability to run petrol
What is the best method of stroking the engine (offset groung 4.6 crank?)
What conrods to use
What Pistons to look for
No doubt there willbe more to come
Any help would be apprecieted
My Range Rover Classic is still in regular use, but I am starting to think about what to do when she retires and join my other toys
My RRc is a late sofdash with a semi serpentine engine, small journal crank, distributor, non crossbolt mains, but with all the crossbolt castings present.
Running on LPG
The block went porous and I had thick wall liners fitted, so scope to up the piston diameter.
My current thoughts are along the lines of.........
Increase capacity to 5.0 or 5.2, raise the compression ratio to take advantage of the higher octane in LPG (but kep the ability to run petrol (Super inleaded as a reserve)
Polish/port heads possible large valves
So I suppose my initial questions are:-
What is the optimum CR for LPG
What is the maximum CR I can run keeping the ability to run petrol
What is the best method of stroking the engine (offset groung 4.6 crank?)
What conrods to use
What Pistons to look for
No doubt there willbe more to come
Any help would be apprecieted