0.040 Oversize Scraper Ring for Raptor High-Performance Builds

Unleash efficiency in oversized setups with the 0.040" scraper ring, crafted to keep oil in check and combustion pure for Raptor excellence.

Kart teams rely on the BSR040R3 to maintain velocity without the drag of excess fluids, streamlining high-stakes performance.

• Robust Edge Design: Scrapes effectively even at elevated temperatures.
• Build Versatility: Ideal for tuned engines demanding tight tolerances.

Organize your ring stack around this SKU for a cleaner, faster-running motor that dominates corners and straights alike.

Frequently Asked Questions

Q: Is this 0.040" scraper ring compatible with standard bore Raptor engines?

A: No, this ring is specifically designed for engines that have been bored 0.040" over. Attempting to use this on a standard bore will result in improper ring end gap and engine failure.

Q: How do I ensure the correct ring end gap during installation?

A: Always file-fit your rings to your specific cylinder bore. Place the ring squarely in the cylinder and use a feeler gauge to measure the gap, ensuring it meets the clearance specifications outlined in your engine build manual.

Q: Why is a scraper ring important for high-performance kart builds?

A: A high-quality scraper ring effectively removes excess oil from the cylinder wall, preventing oil blow-by. This keeps the combustion chamber clean, maintains proper compression, and reduces fluid drag for maximum RPM efficiency.

Q: Should I replace all rings when installing this 0.040" scraper?

A: Yes, it is best practice to replace the entire ring set whenever you are performing a top-end rebuild or installing an oversized piston to ensure even wear and optimal seal across the entire piston stack.

Related Products From Vendor

• Briggs & Stratton Raptor Flathead 397135 Choke-Style Carburetor - 5HP L-Head - Unrestricted Racing
• Reliable Old-Style Recoil Starter for Briggs Raptor Karts
• Pack of 10 Precision 035 Top Rings for Raptor Engines
• Briggs & Stratton Raptor .015" Top Piston Rings (10-Pack) - Flathead Racing
• Bulk 10-Pack .025" Top Rings for Oversized Raptor Piston Applications