Vehicle & Technical > Range Rover
Supercharger on a classic
simdeb:
Had a rangey that came with a factory fitted supercharger never had it running its a few years back sold the motor as spares .
SebastianW:
Did any of the Range/Land Rover 3.9 V8s ever come with a supercharger?
seb
Range Rover Blues:
Seen one turbocharged. I'd think the biggest problems with blowing an EFi would be
Compression ratio needs lowering to prevent runaway knock (dieseling).
Standard ECU wouldn't run with that much air going through it
Fuel pressure regulator is not designed for that much pressure
But in theory it's do-able.
SebastianW:
Damn RRB, you dont half know your stuff! :lol:
Well changing the compression ratio isn't that difficult is it?
Would I have to buy a new, compatible ECU, or could the original one be remapped? I have a feeling ECUs could be expensive.
Could the fuel regulator be altered, or would a new one be in order? And do they command a premium?
seb
Range Rover Blues:
You have many options on the EFi front, one being a megasquirt kit. Build it yoursefl and pregram it from a laptop. A bit overkill for a N/A V8 but perhaps right up your street if you are turbocharging.
Don't know about the fuel reg, the Lucas system runs at IIRC 27PSI (could be way off) but I know it's lower than most other modern EFi systems, so you would need an adjustable regulator of some sort but I'm sure they are available, you aren't the first person to hatch this plan :)
Lowering the C:R, firstly there is the low compression engine, then there's thicker head gaskets. In an article I was reading in Classic Ford folks even use sandwich plates on blown Pintos to get the C:R down.
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