OK guys, here's one i've not personally come across before...

Planning a project with a customer who's using a Small Turbo Escort Cosworth engine as the base. We came to the subject of ignition system and whether the standard coilpacks would be up to the job of 650+bhp @ 2.2bar boost.

The furthest I can remember taking them from memory is around 550bhp @ 2.5 bar and we only stopped there as that was all the turbo had to give, has anyone taken them higher?

Many thanks!