Darton Iron MID Wet Sleeves for the Mitsubishi Evo X
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First off, Wet vs Dry Sleeves. Which is better and why?
Dry Sleeves close off the water jacket. This, of course, means coolant, etc can’t surround the cylinder. Wet Sleeves leave the water jacket there, so coolant can surround the cylinder. This allows for proper cooling. The top to the cylinder is closed off. This closes the deck up top, preventing cylinder moment under heavy boost.
In short? Wet sleeves cool better!
With that out of the way lets get to it. Darton MID Sleeves are some of the best sleeves on the market. With superior strength and fitment Their flanged tops align against each other while still allowing coolant to flow through them.
Many production blocks suffer weak cylinder stability due to poor support in the upper deck area. The manufacturing process of typical “cast sleeves” provide for increased power in low horsepower engines, but does not accommodate high horsepower, high boost, or larger bore sizes.
New to the Subaru game, or turbo cars in general? Here are a few tips to make sure you don’t end up with a new set of automotive themed paperweights!
Our years of experience in the Subaru market have shown us a few things. The first is how to make a ton of power via bolt-ons, an engine build, and a performance tune. We’ve also learned a few things about what not to do – like how to not blow up engines. Unfortunately, the latter seems to occur very often with the EJ25 series of Subaru engines, and even in stock form they have shown to be prone to catastrphic engine failure. There are a few different theories regarding the failure of the pistons, each one as true as the last.
Excess Carbon Buildup
More Cracking / Heat Scarring
We’ve assembled this short list of reasons why Subaru STi / WRX pistons and engines fail, as well as a few solutions that every Suburu owner can employ via tuning, installation of a few parts at home in their garage, and remember to do on a daily basis. Continue reading
Adjustable Fuel Pressure Regulator Install Kit with AEM FPR
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Whenever you’re changing your fuel system… injectors, pump, fuel rail…anything! its a good idea to get a new Fuel Pressure Regulator. The OEM unit is notorious for not keeping constant pressures at times, they are also wear out with high boost applications. This kit will not only get you a superior fuel pressure regulator but will give you everything you need to install it, too!
This kit also gives you the ability to raise base pressure, which in many cases is nice on larger injectors to maintain a smoother idle, as well as flowing more volume with higher base pressure in the upper RPM band with fueling.