beaterX project thread

Matt D. · 10-31-2010

Quote:

Originally Posted by mlomker

If the assumption is expansion/contraction then the metal composition could be different, even if the clearances were the same.

I wouldn't expect OEM engine components to vary much.

**mlomker** · 10-31-2010

Quote:

Originally Posted by Matt D.

I wouldn't expect OEM engine components to vary much.

Between 4G and 4B? I'm no engineer but I don't assume that tolerances being the same between those two engines means very much.

**scheides** · 10-31-2010

Quote:

Originally Posted by Matt D.

I wouldn't expect OEM engine components to vary much.

4G63: Iron block

4b11t: aluminum block, (?)sleeves

That's all I was sayin. Perhaps expansion rates are different between the two and thus tollerences for the level of power/torque/boost that we enthusiasts like to run don't play well together.