Spark Plugs - Megasquirt RV8 4.6

[garrycol]

I am just about to fire up my new build 4.6 RV8 - will be managed by Megasquirt with ignition by EDIS 8. The engine is not a race engine and will be used in a 4wd.

I am looking fore recommendation for spark plugs - preferably NGK brand as they are the most easily sourced locally. I am not sure whether the LR specified plugs are still relevant with MS and EDIS.

Thanks

Garry

[sidecar]

I run a programmable MSD on my stage III 4.6, I also run a 100 BHP NOS shot. I run the car on the road. I just run NGK plugs that are one grade colder than standard. From memory I run the gap at 40 thou.

EDIT...Doh, I should learn to read, I thought that your engine is a race engine! In that case I'm sure that the standard plugs will be fine.

[DaveEFI]

I'm using the plugs specified with the EDIS version of the RV8. Note these are resistor types, which are recommended for EDIS. Don't think MS would make a difference to the choice of plugs with EDIS.

[Darkspeed]

5's

[SimpleSimon]

BPR6ES or BPR6E (grooved electrode)18mm plugs, or you can run 16mm plugs BCPR6ES or BCPR6E gapped at 0.9 /1.1mm or 35/40 Thou will work great with your EDIS 8

[garrycol]

Thanks to everyone for the information - why the alternative lengths - I would have thought only one was suitable.

Cheers

Garry

[SimpleSimon]

Thanks to everyone for the information - why the alternative lengths - I would have thought only one was suitable.

Cheers

Garry

Not length outer body diameter inc hex

[garrycol]

Ok - thanks

[Eliot]

Looking through the notes from a friends edis based griff 500 says BR8ES and also BP6RES

I think he went to the 8's to avoid knock, but i think BP6RES is a good choice.