Which Dizzy, confused myself?

[aspira]

Spent hours reading through all sorts of posts on dizzy's but now more confused than when I started.

Can anyone give me a recommendation for a Dizzy & Coil to go into 3.5 V8. Engine number 24D000 67A. I'm using a P6 front cover, crank pulley, oil pump and waterpump. I believe that makes it a 1989/90 Discovery. It's a project engine going into my 1980 MGB eventually.

I've looked at PowerSpark, Rimmerbros and various used dizzy's priced from £30 to £250. Buddles offering 8mm HT leads, coil and dizzy.

I assume the P6 oil pump is driven from the crank.

Any help appreciated.

[harvey]

I assume the P6 oil pump is driven from the crank.

It isn't, it's driven off the bottom of the distributor shaft.

[aspira]

Right so the gear at the bottom of the distributor needs to match the oil pump gearing which I guess is different between P6 and SD1?

[harvey]

Right so the gear at the bottom of the distributor needs to match the oil pump gearing

Correct.

which I guess is different between P6 and SD1?

Right again..

[aspira]

thank you, got it. Sometime reading too much is worse than not reading enough!

[DaveEFI]

I'd try and avoid the P6 dizzy if possible. The external points adjustment seems like a good idea - but in practice results in the dwell varying day by day.

ISTR you can fit a later dizzy by changing to the P6 gear. But I could ISTR wrong.

[harvey]

ISTR you can fit a later dizzy by changing to the P6 gear. But I could ISTR wrong.

You can fit a later gear to the early dizzy by trimming the bottom of the shaft, but you can't do it the other way around using the standard gear. You can get a custom gear though.

[v8250]

get one of these, been using them for years on many cars, they never fail, excellent service and back up when needed, just make sure you get the correct male or female oil pump drive end.

http://www.simonbbc.com/distributors/8c ... lter_id=19

[aspira]

Many thx - just the ideas I needed.
Stephen

[v8250]

Stephen, a helping note - you need to educate yourself re' the B project and the V8 engine, gearbox and all; there's a mass to learn/pick up and there's only one way to do this...read. Use the internet to familiarize yourself with the major suppliers. Work out what you need. Don't always rely on the kind hearted guys here on the V8 forum...they're a great bunch and hugely knowledgeable...but, it's better to discover some things for oneself. For suppliers of relatively standard components use Rimmer, Clive Wheatley, MGOC Spares, Real Steel and some of the Land Rover specialists etc. For more advanced component specifications use the advertising partners here on the V8 forum...there are many others.

Have you bought and read the MGB V8 Conversion book? If not, really old bean, you must do this otherwise you'll be running blind...and doing so, not being armed, is the costly way of completing the conversion. Another essential book on the Rover/Buick V8 is this...again a knowledgeable book and gives a thorough insight into what the V8's all about.

http://www.veloce.co.uk/shop/products/p ... dification

[aspira]

Thanks for the note, fair point. Apologies if I've taken advantage I was genuinely confused regarding distributors and had spend a lot of time reading different and sometimes conflicting posts across many sites. I'll be more prudent in the future.

[mgbv8]

You havent taken advantage Stephen. You have just done what anyone would do. Ask questions in the right place

I'm pretty sure I still have a copy of the DVD "how to do the MGB V8 conversion on a shoestring budget"

I'll see if I can dig it out for you to watch.

The one thing that you will soon learn about the MGB conversion is just how different the body shells are Some folk need to take a good chunk out of the gearbox tunnel and some only need to take a small amount out etc.


As 250 says, the book is a good read. Just keep asking questions mate.

Re the dissy, I opted for a Mallory magnetic unit from Real Steel which i first used on a lumenition ign module and coil, then I fitted and MSD Blaster coil, then I used the dissy to trigger an MSD AL 6 CD ign contoller and finally the same dissy has been triggering a Mallory 6AL unit with a blaster 2 coil. This dissy has been in use since 2004 and its still going strong This is on my original MGB V8 / P6 timing cover and oil pump drive.

Perry

[aspira]

Thx Perry, that's very kind. Just ordered a couple of books...
Stephen

[DEVONMAN]

Hi Perry,

I'm amazed that you are still using an early front cover and oil pump.

But I suppose the proof of the pudding etc,etc, etc....

Regards Denis

[v8250]

Thanks for the note, fair point. Apologies if I've taken advantage I was genuinely confused regarding distributors and had spend a lot of time reading different and sometimes conflicting posts across many sites. I'll be more prudent in the future.

No advantage taken It is hard when starting these new projects as there's a mass of info' out there, a lot of it misinformation...and of course no definitive right or wrong way to complete the B conversion, just, what you want to do. One trick is to decide what you want the car for and how much power...then to spec' up the project from there.

Pel's note on the tunnel is correct. I've seen some 77/78 cars that have needed good amounts of metal trimmed and plated. On mine, a 77 car, very little was needed but as I had the RV8 plate from BMH, the plate was installed.