hi there i have a wrx 1995 impreza wagon and the bottom end has gone i have now had a new one fitted with my heads on it and a exedy race clutch i would just like to know how many miles i need to do with no boost to bed it in and how many for the clutch as well?

 

has no one on here had there engine re-built and been told how many miles to do befor putting there foot down or had a new clutch and been told how long to bed it in for

 

Most engines are baby-ed for the first thousand miles from new... others say thrash them from day one to loosen them up !

HTH

DunxC

 

i do the first 300 miles under 3000rpm then take it up 250rpms every 100 miles, that is safe enough, phil.

 

thanks mate

 

keeping it under 3000 rpm means your probably putting excess load on the fresh engine by changing up realy early and getting in a high gear as soon as you can at low rpm this is bad for a new engine A few Rpms dont hurt fresh engines if your sensible too much load will and that can be boost or labouring the motor in too high a gear