recently had 4 new tyes fitted, and for some reason this started as soon as they were on, but can't see how they are related at all!! the problem is that the boost from the turbo used to kick in at 2000rpm, if the revs were lower than this, i'd change down to stop the car shaking like a jackhammer on acceleration- but now in fourth, the boost comes in a lot later, maybe 3000 or more, and also there doesn't seem to be the power that there once was. anyone anything simliar?? or am i just imagining it??
