Hi all,
I am just going to log my latest adventures modernising my ancient 84 3.5 original carb engine. I myself have been looking for information on the internet and found limited information available so I will just explain my experiences here for anybody who is considering similar ideas.
So a little bit of background: I found this low mileage 84 4 door RRC parked in a corner at a junkyard in Texas. It had been sitting in a garage for 20 years after the owner opened the engine, bought a whole bunch of parts and then it seems gave up. Otherwise the car was in good shape.
I bought the car (for cheap obviously) and found that with the parts was an intake manifold that allowed for the installation of a standard US 4 barrel carb (Offenhauser JWR 7001). So rather than install the orginal carb setup I decided to buy a Holley 4 barrel carb instead.
After a full rebuild of the engine (which was very clean and definite the 41k miles on the odometer) I drove it with the carb and it worked ok-ish but in the Texas heat I had some vapour lock issues, apart from a few hundred other issues that come with this sort of adventure.
So then a few months later I found out I could just swap out my carb for a Throttle Body Injection unit (Sniper EFI in this case). All cool and works very nice indeed! (needless to say this is no longer a budget build)
The Sniper EFI does allow for ignition timing control as well as fuel, but this is where it gets a bit more tricky as you cannot do this using the standard Lucas distributor. So so far I have not use the timing feature and ran the timing conventionally. So my next adventure is to swap out some parts to make that happen (next post).
I am just going to log my latest adventures modernising my ancient 84 3.5 original carb engine. I myself have been looking for information on the internet and found limited information available so I will just explain my experiences here for anybody who is considering similar ideas.
So a little bit of background: I found this low mileage 84 4 door RRC parked in a corner at a junkyard in Texas. It had been sitting in a garage for 20 years after the owner opened the engine, bought a whole bunch of parts and then it seems gave up. Otherwise the car was in good shape.


I bought the car (for cheap obviously) and found that with the parts was an intake manifold that allowed for the installation of a standard US 4 barrel carb (Offenhauser JWR 7001). So rather than install the orginal carb setup I decided to buy a Holley 4 barrel carb instead.

After a full rebuild of the engine (which was very clean and definite the 41k miles on the odometer) I drove it with the carb and it worked ok-ish but in the Texas heat I had some vapour lock issues, apart from a few hundred other issues that come with this sort of adventure.

So then a few months later I found out I could just swap out my carb for a Throttle Body Injection unit (Sniper EFI in this case). All cool and works very nice indeed! (needless to say this is no longer a budget build)

The Sniper EFI does allow for ignition timing control as well as fuel, but this is where it gets a bit more tricky as you cannot do this using the standard Lucas distributor. So so far I have not use the timing feature and ran the timing conventionally. So my next adventure is to swap out some parts to make that happen (next post).