Apex Seals
| We recommend .0015" of clearance between the apex seal and the rotor slot for all applications, boosted or naturally aspirated.
3 mm 12A or 13B Goopy Apex Seals are .115" thick, and you should be able to slide a .0015" feeler gauge into the rotor apex slot with a new apex seal. Our oversized 12A 3 mm seals measure .118" (+ / - .001"). If your rotor slot measures .018" - .020", you may benefit from our oversized 2 mm seals which will allow you to re-gain the .0015" suggested clearance. Our 2 mm apex seals are .075" thick and you should be able to slide a .0015" feeler gauge into the rotor apex slot with a new apex seal in place. |
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| Goopy Performance 13B 2 mm oversized apex seals measure .078" (+/- .001"). If your rotor slot measures .077 - .078", then you may benefit from our oversized 2 mm seals which will allow you to re-gain the .0015 suggested clearance.
If your gap with the seal in place measures .002-.005" it is still usable, but keep in mind that tighter clearances means greater sealing characteristics. Take note that 12A and 13B 3 mm apex seal slots suffer the most when it comes to rotor slots over-tolerance. We have measured many used rotor slots and have found very few that still had the stock widths. |
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Engine |
Size |
Thickness |
Price per Set |
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|
Inches |
millimeters |
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12A |
3mm Stock |
.115" |
2.921 mm |
$350.00 MSRP |
|
3mm Oversized |
.118" (+ / - .001") |
2.997 mm (+ / - .025 mm) |
$350.00 MSRP |
|
|
13B |
2mm Stock |
.075" |
1.905 mm |
$350.00 MSRP |
|
2mm Oversized |
.078" (+ / - .001") |
1.981 mm (+ / - .025 mm) |
$350.00 MSRP |
|
|
3mm Stock |
.115" |
2.921 mm |
$350.00 MSRP |
|
|
3mm Oversized |
.118" (+ / - .001") |
2.997 mm (+ / - .025 mm) |
$350.00 MSRP |
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Goopy Performance Rotor Repair and cleaning kit
|
Price |
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1 - Precision hand file in either 2MM or 3MM. 2 - .0015 Feeler gauges 2 - Stainless steel bristle brushes for corner seal (1/8) |
$75.00 MSRP
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