Hello from Sydney, Australia

Hello Aidrian,

I appreciate the nice comments :D

The needles in the SU carburettors on the 4.6 are BBW. In standard trim though, the needles proved to be too lean, so they had to be polished or carved if you prefer deliver more fuel and to specifically meet the specification and air flow requirements of my engine. The Rover was placed on a rolling road (dyno) with a whole raft of diagnostic equipement. This was undertaken by a Land / Range Rover specialist, and what a truly wonderful job he did.

With linear air/fuel metering across the rev range, the 4.6 delivers 60% more power to the rear wheels compared to Rover running the same equipment specification but with the 3.5 litre engine. A before and after snapshot. Fuel economy has improved too, the 4.6 delivering 29mpg country running, cruising at a consistant 60 to 70mph. The best the 3.5 ever achieved was 26.8mpg back in the early 1990s. Usually consumption was in the range of 23 to 24mpg.

The 4.6 and the way in which it has been set up has totally transformed my Rover and I could not be happier. :D

Ron.
 
Ron,you have a very nice looking P6.I would also want 4.6 engine to my P6 but i have converted my Rangie to 4.6 last year.So far i will stick these combinations :roll:

Rgds:Jukka
RR92 Westminster efi 4.6
-73 Rover P6 3500Si
 
ghce kindly asked me the following question,...

How many extra ponies do you have under the bonnet?? what was it like to fit in the engine bay and what other mods are on it??
Its nice to see win win stories

Graeme
Click to expand...

Hello Graeme,

The engine has been built and configured as a Range Rover engine, so torque takes precedence over outright power, but having said that the engine delivers in the order of 155kW (210hp).

Rover or rather Land Rover (all Rover V8 engines since 1972 were built by Land Rover, including those engines fitted into Rover cars) kept the major external points unchanged, so even though the cylinder block for my 4.6 litre engine was cast sometime after the year 2000, it still contained the necessary points within the cast to affix the power steering mounting bracket within my P6B engine bay. Rover (Land Rover) had purposely made all blocks backwards compatible, so a block cast in 2004, the final year of factory V8 block production, will happily sit in the engine bay of a Rover P5B made in 1967!

My engine runs an SD1 timing cover with a P6B water pump, both for meeting the necessary clearance issue but more importantly keeping all the pulleys in the same plane. The timing cover was suitably modified as I wished to retain the AC mechanical fuel pump.

The engine is fitted with my original P6B sump in order fit around the front crossmember and the P6B oil pick up is also retained. The front portion of the sump is relieved in order to allow for the increased swing of the 4.6 crankshaft.

The camshaft is a custom made high torque highway configuration designed by Wayne Jones of Wayne Jones Racing Engines. As the factory 4.6 litre engines run with a crankshaft driven oil pump and no distributor, there is of course no nose on the camshaft for fitment of the gear to drive the disributor, so my camshaft utilises a 3.9 billet onto which the 4.6 configuration is ground. In this way there is provision for driving the distributor and running the eccentric for driving the fuel pump.

A J & P Performance double row true roller timing set with multi key way positioning is used both for increased longevity, stable timing and for running the camshaft advanced of TDC.

Looking from above, the only noticable difference is with the air cleaner box which has a substantially larger air inlet providing more than double the air flow compared to the P6B issue.

The exhaust note is considerably deeper and much louder compared to P6B system,...people have said to me,..."it really sounds the business".. :D

Ron.
 
Hi Ron thanks very much for that information, dont know how I missed your origional post, I should have read back more thoughly. Your P6B is one clean nice looking machine.
I dont often get over the ditch to Oz but next time I am over that way and if it's possible would really enjoy seeing your car.
I had not thought that the later 4.6 transplant would be an easy job but it seems that it is a lot more doable than I had first thought, I may just have to keep my eye out for a 4.6 engined LR, saw one for sale a month ago for less than NZ$2000 in good working order but did not think that it was a worthwhile purchase :oops: now I know better though I would retain the injection.

Graeme
 
Hello Graeme,

Thanks for your nice comments. I am pleased that you like the look of my Rover. :D

By all means next time you intend to visit Sydney, do send me a PM before hand and I'll send you my contact details. It would be great to meet you and to show you my car. We'll go for a spin around the block.. :D

Ron.
 
Cheers Ron Thanks for the offer. Have you worked out your city running MPG? I presume there must be some reflection in the urban cycle with such good Rural running figures.

Graeme
 
Hello Graeme,

City running over a number of days typically runs at around 18 to 19mpg. If I fill up, do the urban running around and then refill before going home it usually comes in at around 21mpg.

Ron.
 
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