Thread: Tune up for a D1

Originally Posted by DiscoveringAuz

Hi all,
Few questions, best plugs and leads for a 3.9lt v8i,

What is the best advance to use I have heard anywhere from 6 to 12 degrees?

NGK Plugs
Magnacore leads .... I use Champion gas leads

Timing degrees??
Unless your ride is modified .... What ever the degrees is written on that green L/R sticker on top of the (drivers side) R/H rocker cover on the engine ... you could advance it .. BUT you the further you go ... the hotter it runs / which can = burnt valves

If you want more ... then I would suggest A "chip" being added to the ECU .. complimented with a Dyno tune

Mike

Originally Posted by DiscoveringAuz

Hi all,
Few questions, best plugs and leads for a 3.9lt v8i,

What is the best advance to use I have heard anywhere from 6 to 12 degrees?

hi i run a scorcher distributer machinied in australia with there leads, im on lpg and use high octane, i have a the disy set up at 13 deg,

Depends on which octane fuel you're using. Try slowly turning the dissy anticlockwise till the revs pick up then take it for a test drive. If it pinks on acceleration turn the dissy back slightly and try again until the pinking disappears. If it doesn't pink try advancing it a bit further. The more advance you can dial in the better for torque. Land Rover's setting was on the conservative side to allow for all sorts of sub standard fuels. I think mine's around 9 degrees. You can add more with the high compression 3.9 engine.

You can also modify the advance curve by swapping springs around (Mr Gaskett has a kit and there are a couple of others that work in the Lucas) but a Scorcher is the way to go if you want to retain a dissy that's simple and customised to your engine. Gets rid of that pesky Lucas amplifier too.

I use NGK BP5ES plugs and Bosch black leads purchased individually from Supercheap.

Originally Posted by Traco

Depends on which octane fuel you're using. Try slowly turning the dissy anticlockwise till the revs pick up then take it for a test drive. If it pinks on acceleration turn the dissy back slightly and try again until the pinking disappears. If it doesn't pink try advancing it a bit further. The more advance you can dial in the better for torque. Land Rover's setting was on the conservative side to allow for all sorts of sub standard fuels. I think mine's around 9 degrees. You can add more with the high compression 3.9 engine.

You can also modify the advance curve by swapping springs around (Mr Gaskett has a kit and there are a couple of others that work in the Lucas) but a Scorcher is the way to go if you want to retain a dissy that's simple and customised to your engine. Gets rid of that pesky Lucas amplifier too.

I use NGK BP5ES plugs and Bosch black leads purchased individually from Supercheap.

I too recommend the Scorcher Dizzy.... I now have heaps more power. Old Dizzy must have been Shagged.
And Caps, rotor ,and amp are all ford GM stuff easily obtainable
Best of all no Lucas $70 dizzy rotor button required. ... Saving money already!

I'd be getting the ECU remapped also. My car ran well with all of the tune pats in good order, but with the remap it picked up power and a ton of economy