Hi all,
I'm after some advice, I want to build a 4.6 to go into a Defender but ideally I want to avoid all the 4.6 electrics sensors...etc as it's going onto a comp safari racer which will have some rough and tumble.
I have a 4.0 P38 and 3.5 EFi RRC which are laid up, so I can take parts off them?
What would you recommend?
RV8 3.5 > 4.6 + stroker advice
Moderator: phpBB2 - Administrators
Thanks for confirming Garry, where can get a 4.6 crank/conrods for a good price new/used?
What parts would you recommend to manage the ignition?
Ideally I would like to run it on EFi:
Would it be a massive pain to keep the 4.0 EFi?
Would I be better using the EFi off the 3.5?
Webber 500?
What parts would you recommend to manage the ignition?
Ideally I would like to run it on EFi:
Would it be a massive pain to keep the 4.0 EFi?
Would I be better using the EFi off the 3.5?
Webber 500?
1988 Range Rover 3.5 efi - Trials project
The 4.6 sensors will be much newer than the 3.5 sensors.
I would do as suggested above to get a 4.6 engine. I would probably ignore the 3.5, but I would research what sensors are needed for your preferred fuel injection system, and choose the inlet / ignition system that suits you best.
Chris.
I would do as suggested above to get a 4.6 engine. I would probably ignore the 3.5, but I would research what sensors are needed for your preferred fuel injection system, and choose the inlet / ignition system that suits you best.
Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Series IIA 4.6 V8
R/R P38 4.6 V8
R/R L405 4.4 SDV8
Note that I am in Australia so I cannot help where you would get a crank etc - noting how are you going to get a 4.6 engine without a 4.6 crank.Kit wrote:Thanks for confirming Garry, where can get a 4.6 crank/conrods for a good price new/used?
What parts would you recommend to manage the ignition?
Ideally I would like to run it on EFi:
Would it be a massive pain to keep the 4.0 EFi?
Would I be better using the EFi off the 3.5?
Webber 500?
If you are confident with Mega Squirt then go with that for ignition and injection but if you are new to it, it is not as simple and people make out
You can run the 4.0 EFi system but work will be required on the ECU to make it run stand alone (I have assumed it it a Thor system - not sure about a GEMs system. It will run the ignition as well.
I would forget anything off the 3.5. I have heard the Webber works OK but you will still need something to run the ignition.
Garry
Ah - right. But a MAF is common to most factory injection systems including most RV8s. The first RV8 EFI used a flapped AFM, which is definitely to be avoided.Kit wrote:Mainly the MAF, I'd probably replace it with a air temperature sensor if I ran a MS2
As you say, MS doesn't generally use a MAF, but uses a combination of engine vacuum and throttle position for much the same thing.
Dave
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y
London SW
Rover SD1 VDP EFI
MegaSquirt2 V3
EDIS8
Tech Edge 2Y