EVO Performance Parts
Home My Account Checkout What's New? EVO TECH

Live Help

Wiseco Asymmetric Skirt Bore 86.50mm - Size +.060 - CR 9.5 Piston Set - EVO 8/9
Product Rating
N/A
Write A Review
stopwatch
On sale for the next 15 minutes
SKU: K666M865AP
Price: $585.95

Quantity

Add to cart
   
Add to wish list


Product Overview
Wiseco's new asymmetrical piston forging design for the Mitsubishi Lancer Evolution 8-9 maintains a larger skirt area on the heavily stressed major thrust side, while reducing friction with a smaller skirt area on the minor thrust side. The result is a high strength, lightweight piston that significantly reduces friction in your engine.

What is asymmetrical?

Asymmetrical, by definition, means "not symmetrical". The new asymmetrical forged pistons from Wiseco utilize two different sized piston skirts, so are identified as an "asymmetrical" piston design.

Why are asymmetrical pistons better?

FACT: The two skirts of a piston do not experience the same amount of mechanical loading. During the firing cycle, the load exerted on one piston skirt, referred to as the "major thrust side," can be up to 10 times higher than the load experienced by the opposing skirt, referred to as the "minor thrust side." The disparity in skirt loading can vary in magnitude depending on key variables including the engine's stroke, rod length, and peak cylinder pressure.

Wiseco's asymmetrical pistons are designed to specifically handle the dissimilar mechanical loads experienced by both piston skirts. The resulting piston design features a large skirt area on the heavily loaded "major thrust side" and a small skirt area on the less loaded "minor thrust side". Overall, the piston design is stronger, yet lighter than previous designs.

The Wiseco asymmetrical Evo "shelf" pistons are available in a variety of compression ratios, bore diameters to suit a broad range of combinations.
Recommended products list
Customers who bought this product also bought the following products:
Mitsubishi OEM Alternator - EVO X
Mitsubishi OEM EVO X SST Transmission - 2008-2010
AEM Fuel Pressure Regulator
Cosworth NGK Spark Plugs - EVO 8/9
VIS Racing Terminator Carbon Fiber Hood - EVO X
MR Headlight Foglight Connector Harness
Mishimoto Performance Radiator - EVO 8/9
Mitsubishi OEM Air Dam Skirt Panel - EVO X
Cusco Type 2 Lower Arm Bar - Lancer EVO
AMS Upper Intercooler Pipe: EVO X
Reviews
There are no reviews available for this product.
Write A Review
Write A Review
Note: Fields marked with a * must be filled in.

Your Name: *
Your Review's Title: *
Your Rating: *
Your Review: *

Type the characters you see in the picture. (If you do not see any picture here, please enable images in your web browser options and refresh this page):

Get a different code
*
Submit

See our listings on Find the best prices We are a member of the MastaMinds Network This site is SSL Secure! We Accept all major credit cards through paypal We are a member of the Better Business Bureau