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Skunk2 Pro Series Honda/Acura K-Series i-VTEC XP Valve Spring Set (Dual Springs)

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SKU: sk311-05-7380
Part Number: 311-05-7380
Notes: Pro Series XP Racing Valve Spring Kit; Set of 16
Manufacturer: Skunk2
Coil Bind: 0.890in
Open Pressure: 255lbs at 1.100in
Max Lift: 0.680in
Seat Pressure: 100lbs at 1.600in

Product Category: Valvetrain

Our Price: $349.99

StartYear EndYear Make Model SubModel Cyl Lit Fuel FuelDel ASP EngDesg Notes
2000 2009 HONDA S2000 ALL ALL ALL ALL ALL ALL ALL
2002 2005 HONDA CIVIC ALL ALL ALL ALL ALL ALL K20A3
2002 2006 ACURA RSX ALL ALL ALL ALL ALL ALL ALL
2002 2006 HONDA CR-V ALL ALL ALL ALL ALL ALL ALL
2003 2007 HONDA ACCORD ALL ALL ALL ALL ALL ALL K24A4;K24A8
2003 2011 HONDA ELEMENT ALL ALL ALL ALL ALL ALL ALL
2004 2008 ACURA TSX ALL ALL ALL ALL ALL ALL ALL
2006 2011 HONDA CIVIC MUGEN SI;SI ALL ALL ALL ALL ALL ALL
2007 2012 HONDA CR-V ALL ALL ALL ALL ALL ALL ALL
2008 2012 HONDA ACCORD ALL ALL ALL ALL ALL ALL K24Z2;K24Z3
2009 2013 ACURA TSX ALL ALL ALL ALL ALL ALL K24Z3
2012 2013 HONDA CROSSTOUR ALL ALL ALL ALL ALL ALL K24Y2
2012 2014 HONDA CIVIC SI ALL ALL ALL ALL ALL ALL
2013 2013 ACURA ILX ALL ALL ALL ALL ALL ALL K24Z7
2013 2013 HONDA ACCORD ALL ALL ALL ALL ALL ALL K24W1
Description

Details

Skunk2 Pro-Series XP Racing Valve Springs: Skunk2 is proud to introduce its Pro Series XP (Extra Pressure) Racing Valve Spring Kits for Honda’s B-series VTEC and K-series i-VTEC engines. Each kit includes Skunk2’s high-quality race-proven dual valve springs that are the result of nearly two decades of racing and engine building experience.

“XP” features a higher seat pressure for turbocharged and extreme high RPM motors. This spring has a seat pressure of 100lbs at 1.600” for the K-Series and 93lbs at 1.320” for the B-Series engines while keeping the coil bind height for higher lift camshafts.

Each Pro Series XP Racing Valve Spring is manufactured exclusively from super-clean, chrome-silicone wire milled in Japan. By using inner and outer springs mated together through a slight interference fit and with differing frequencies, Pro Series XP Racing Valve Springs are able to prevent valve float and maintain valvetrain stability at engine speeds in excess of 11,000 rpm. Wound by a premier North American winder, our Pro Series XP Racing Valve Springs retains its durability and strength that results in improvement to the extreme fatigue limit of the wire and enhanced resistance to load loss.

Pro Series XP Racing Valve Springs are engineered to handle the demands of extreme-lift camshafts operating at prolonged, high-rpm use at championship-level racing. Skunk2’s Pro Series XP Racing Valve Spring’s for Honda’s B-series VTEC and K-series i-VTEC engines are simply the best on the market. Pro Series XP Racing Valve Springs have been tested at speeds exceeding 11,000 rpm on our engine dyno, street, and the race track. Our superior, Japanese-milled, super-clean chrome silicone wire is 100-percent eddy-current inspected prior to coiling. Next, they are heat-treated, shot-peened, and chemically polished for strength and durability. A special nitriding process concludes Skunk2’s rigorous manufacturing process. The end result is a lightweight valve spring that safely accommodates high-lift camshafts and features superior resistance to load loss, even under extreme operating conditions.

Skunk2 designs, develops, and tests its entire valvetrain lineup in-house to ensure superior quality and maximum performance gains. During development, each valvetrain component is tested both on the dyno and the road, including 11,000 rpm drag racing engines and 17,000 rpm superbikes. Manufactured from the best materials available, Skunk2 valvetrain components provide exceptional performance, reliability, and quality. These components remain standard-issue on each Skunk2 vehicle that we build and support.
Additional

Additional Information

Manufacturer Description
At Skunk2 Racing the goal is to build the highest quality and best performing aftermarket parts for today's sport compact cars. Skunk2 Racing products are designed for enthusiasts by enthusiasts. Drawing on nearly a decade of experience in the sport compact industry, Skunk2 is able to create products that cater to the needs of the true enthusiast. As part of the commitment to continually build the best products, Skunk2 Racing remains actively involved in various forms of motorsports. Racing provides Skunk2 with the data necessary to produce high performance parts utilizing innovative design, advanced metal alloys, cutting-edge manufacturing methods, and stringent quality control measures.

All Skunk2 Racing products are carefully planned and designed using the latest computer simulation and modeling techniques, followed by careful testing in controlled laboratory environments using state of the art equipment. Furthermore, each product is subjected to rigorous road and race testing to ensure proper performance in the most extreme conditions. For these reasons, top street cars and race cars around the world rely on Skunk2 Racing products.
Manufacturer Part Number 311-05-7380
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