Ring Gap Calculator
Ring Gap Calculator
Enter your bore size and select an application. This follows the CP-Carrillo guideline: gap is bore × factor.
Select Inches or Millimeters"
Enter bore in selected units
Presets load CP-style factors (Top / Second)
Advanced: Customise factors (in gap inches per inch of bore)
Street NA baseline:
0.0045Street NA baseline:
0.0055Top Ring
X
X
Second Ring
X
X
Oil Ring Rail
≥ 0.015 in
≥ 0.38 mm
Note:
1. These are minimums, going a little over is ok (safer)
2. If you over file the second ring a bit, its ok. Remember the second ring's main job is just to control oil.
3. These are generalized recommendations, and not specific to your engine, your oiling system, your tune, your fuel, etc. When in doubt, seek an engine builder's guidance for further assistance.
4. Spool Imports is not liable for these recommendations if they do not work for your application.
1. These are minimums, going a little over is ok (safer)
2. If you over file the second ring a bit, its ok. Remember the second ring's main job is just to control oil.
3. These are generalized recommendations, and not specific to your engine, your oiling system, your tune, your fuel, etc. When in doubt, seek an engine builder's guidance for further assistance.
4. Spool Imports is not liable for these recommendations if they do not work for your application.
