Darton MID Sleeves 87mm to 90mm MAX For Honda K24
Manufacturer: Darton
Reference Number: 400-200-P
Darton designs’ manage and enhance water flow from block to head to promote stability of cooling and all sleeves are of the “Wet” design. The enhanced water flow in and around the flange area is possible because of ported water flow control engineering we call “Swirl Coolant Technology™”. This process begins with specific engineering models of respective cylinder head and combustion chamber designs and then we promote increased flow of water in those areas of the upper sleeve area subjected to the most heat. Heat is also dissipated through the use of ” Register Fins”™. There is a different engineering model for each engine and cylinder design. While heat is generally considered to translate into energy, high resident heat in the combustion chamber can lead to detonation, the single highest cause of engine failure in the high horsepower regimes.
High RPM normally translates into efficient scavenging of airflow but during misfires or incomplete flame propagation, high cylinder pressures and temperatures are created. Our MID™ design compensates for this high resident heat soak condition. In the normal dry sleeve installation the cooling medium, water, must transfer heat absorption through block material and sleeves, which may be dissimilar metals. When dry sleeves are pressed in with interference fit, the materials interface is not perfect which further exacerbates heat transfer. This thermal conductivity is inefficient and as more heat is generated, the combustion process is compromised.
Even in wet sleeve designs of the past, water is never efficiently processed or flowed between the block and head to provide for maximum heat dissipation in the combustion chamber. Inherent in open or closed deck engine blocks of cast iron or aluminum is a certain amount of water stagnation. This is like pouring water through a funnel, there is really no flow or velocity until the water exits the spigot. In the case of blocks and heads, the casting ports are designed for ease of casting not efficient flow. Now with Darton’s “MID”, Swirl Coolant Technology the cooling medium is ported and directed to significantly improve heat transfer where it is needed most, in the upper cylinder wall/flange area.
The Darton MID™ Sleeve Kit is available for many series of 4, 6, and 8 cylinder import and domestic engines and provides for maximum bore sizes and boost potential. The benefits of our MID™ series kits are:
Cast iron performance in an aluminum block
Improved block integral strength
Improved cooling
Kits can be installed by your local machine shop
“Wet sleeve” replaceability
Full installation manual available on website
Increased horsepower output potential
High boost and horsepower potential
Superior oil and compression control
Superior cylinder sealing and ring wear
Street or strip application
Bulletproof Darton ductile iron
130,000-psi tensile strength
Bore: 3.415
OD: 3.85
Wall: 0.217
OAL: 5.8
Flange Thickness: 0.5
Flange diameter: 4.826
Application: 87mm to 90mm MAX
TVA / IVA / VAT: All import taxes (TVA / IVA / VAT) are included in our pricing. No other taxes will be charged to you during delivery!
K24A1 | 2400cc | DOHC | 16v | NA | I4,K24A2 | 2400cc | DOHC | 16v | NA | I4,K24A3 | 2400cc | DOHC | 16v | NA | I4,K24A4 | 2400cc | DOHC | 16v | NA | I4,K24A8 | 2400cc | DOHC | 16v | NA | I4,K24Y1 | 2400cc | DOHC | 16v | NA | I4,K24Y2 | 2400cc | DOHC | 16v | NA | I4,K24Z1 | 2400cc | DOHC | 16v | NA | I4,K24Z2 | 2400cc | DOHC | 16v | NA | I4,K24Z3 | 2400cc | DOHC | 16v | NA | I4,K24Z4 | 2400cc | DOHC | 16v | NA | I4,K24Z5 | 2400cc | DOHC | 16v | NA | I4,K24Z6 | 2400cc | DOHC | 16v | NA | I4,K24Z7 | 2400cc | DOHC | 16v | NA | I4