dizzy's

Ralphh85 · Post by **Ralphh85** » Wed Apr 16, 2008 12:51 pm

is "35DM8" definatly a vitess dizzy?

the one with the better advance curve than range rover dizzy?

Ralph

ChrisJC · Post by **ChrisJC** » Wed Apr 16, 2008 2:35 pm

There's a few threads on the different distributor types. Also for some of the types, there's different exit holes for the vac advance:

I can't remember whether they are DM or DLM8's.

And as for your question about the curve, you really need the right curve for the engine configuration you build up (or have). How many versions there are I don't know!

Have a look at the Rimmer Bros website (V8 pages), you'll get an idea of how many variants of all the bits & pieces there were.

Chris.

Ralphh85 · Post by **Ralphh85** » Wed Apr 16, 2008 2:50 pm

im sure the rangy one works better on the rangy engine,

main thing is im tryign to plan for the future, once converted i want to biuld an engine which is a bit better than vitesse, an hopefully break the 200bhp mark.

planning on probly getting a fast road piper cam kit with followers an all, an guessed a vitesse dizzy would be closer than the rangy one? im not sure yet what the std injection can cope with, but thats thinking very far ahead.

Ralph

TimoV · Post by **TimoV** » Wed Apr 16, 2008 3:26 pm

Both DM8 and DLM8 have been used on RR.

I had a 1986 RR, which had DM8 dizzy.

The current 1990 has DLM8, which replaced the DM8 in 1987 - if I remember correctly.

Both have the same vacuum advance unit.

Ralphh85 · Post by **Ralphh85** » Wed Apr 16, 2008 3:43 pm

hum think i will forget it for know, should be thinkign abotu current projects not ones for the future!

also just seen the price of after macket ecu's, an they are quite resonable so i should probly just get a new ecu an run that instead of dizzy/efi.

cheers for help anyway!

Ralph

RoverP6B · Post by **RoverP6B** » Wed Apr 16, 2008 10:40 pm

It is my understanding that any Lucas distributor can be used on any Rover V8 engine in any state of tune and for any application provided...

that the distributor is regraphed to meet the requirments of the engine to which it is to be fitted into.

The primary and secondary mechanical advance springs will be selected to provide the correct rate of advance for the application.

The total advance provided can be set by the adjustment stops.

On the resaon as to why the vacuum advance module is positioned differently on a distributor found in a Range Rover compared to the same type of distributor found in a car, I suspect it has to do with the design of the timing cover, and overcoming clearance problems.

Ron.

ChrisJC · Post by **ChrisJC** » Thu Apr 17, 2008 7:10 am

RoverP6B wrote: On the resaon as to why the vacuum advance module is positioned differently on a distributor found in a Range Rover compared to the same type of distributor found in a car, I suspect it has to do with the design of the timing cover, and overcoming clearance problems.

Ron.

That is true. The position of the water pump on the Range Rover is much higher. They are interchangeable, but there's a much smaller amount of adjustment available if you use the car type on the 4x4 timing cover.

Chris.