# Thread: CP pistons ring end gap Chart

1. ## CP pistons ring end gap Chart

piston size 88mm for turbo Bore x 0.0055 =0,484mm it is clear to me!

2. it means add that much more to the second ring gap so the top should be .49mm the second ring should be .64mm the oil ring should have a minimun gap of .38mm does that help ???

3. ## +1 by:

4. Originally Posted by big john
it means add that much more to the second ring gap so the top should be .49mm the second ring should be .64mm the oil ring should have a minimun gap of .38mm does that help ???
Thank you! how do you get these numbers? .64 and .38???

5. in to mm conversion calculator, do the math in inches, then convert to metric. i'm not sure if you even know the american SAE system as were the last country to use it, the rest of the wolrd is metric

6. Originally Posted by big john
in to mm conversion calculator, do the math in inches, then convert to metric. i'm not sure if you even know the american SAE system as were the last country to use it, the rest of the wolrd is metric

THANKS!!!!
0.49mm + 0.004-0.008inches- second ring correctly?
oil ring 0.015 inches- 0.38mm

7. Originally Posted by petroracing.kitins
Originally Posted by big john
in to mm conversion calculator, do the math in inches, then convert to metric. i'm not sure if you even know the american SAE system as were the last country to use it, the rest of the wolrd is metric

THANKS!!!!
0.49mm + 0.004-0.008inches- second ring correctly?
oil ring 0.015 inches- 0.38mm

yes, add .004 to .008 thousands to the .49mm that equal the .64mm measurement

8. Originally Posted by big john
Originally Posted by petroracing.kitins
Originally Posted by big john
in to mm conversion calculator, do the math in inches, then convert to metric. i'm not sure if you even know the american SAE system as were the last country to use it, the rest of the wolrd is metric

THANKS!!!!
0.49mm + 0.004-0.008inches- second ring correctly?
oil ring 0.015 inches- 0.38mm

yes, add .004 to .008 thousands to the .49mm that equal the .64mm measurement
thank you very much Big John!!!!!!!!