2.2S dizzy on 2.4S?

[BK911]

Gentlemen!

The subject line says it all. Will a 2.2S dizzy work on a 2.4S? I am basically taking a 2.2S and installing a 2.4 crank, rods, heads and MFI pump. I couldn't find any advance info for the 2.2 dizzy to compare with the 2.4 dizzy. I know the 2.4 has a vacuum advance. Does this matter? Any advice would be appreciated!

Thanks!
BK

[Early_S_Man]

Your 2.2S distributor should work fine! The vacuum module on the 2.4 and 2.7 engines was to retard the engine 10° at idle for smog-control purposes. The curve of the 2.2S distributor had to be compatible with a high-compression engine with lots of overlap, so it will be fine on a 2.4S ...

Are you going to have a compression ratio above 10.3:1 now? Dual plugs sound like a necessity if your compression is going the be that high!

[BK911]

Warren!

I had a feeling you'd know! Not only did you know, but you also told me exactly what I wanted to hear!

Not sure about the CR, but I think it will be around 9.88:1. I have read about others who have used 2.2S pistons on a 2.4 without dual plug and they say it runs fine. One on an E and several on S's. Sounds like another post!

Thanks!
BK