Yoda's Turbo Log

[Blown_xa]

Originally Posted by pimp my yaris

I did not have a proper bore guage. That is why I am stressing that it needs to be checked and double checked. I thought ordering a oem bore piston and using a stock unbored block would be OK. But it is very noisy and I am concerned about piston wall scoring or a piston skirt breaking. This is a perfect example of what my car sounds like when starting cold. My piston rings gap was checked and I am not burning any oil and the car runs great. Just very noisy. I have searched the net and it seems to be a common complaint with cp pistons.

http://www.youtube.com/watch?v=7NVjR...e_gdata_player

Ive built probably 20 motors, unless you resleeve you pretty much need .5mm larger pistons. My motor has stock bore pistons, but I used a block with 5000 miles on it. Even then, the piston wall clearance is on the loose end of being acceptable after proper honing.

I know many people on here like to save a buck, but sometimes it is better to get a pre assembled shortblock. Many don't realize the work put into a shortblock, it isn't just pistons and rods thrown into a block. (not aiming this toward you)